Consulta: subjectFacets:"Zootecnia"
Registros recuperados: 32
Data/hora: 11/06/2024 00:54:36

Use of adiabatic evaporative cooling system aiming the egg production in State of Paraná
Provedor de dados: 22
Autores: Sangali, Cleiton Pagliari; Klosowski, Élcio Silvério; Bruno, Luís Daniel Giusti; Tsutsumi, Cláudio Yuji; Freitag, Débora Cristiane; Oliveira, Aparecida da Costa.
The aim of this study was evaluate the use of evaporative cooling system (ECS) of air as an alternative to improve the thermal environment, aiming at egg production (EP) of Rhode Island Red laying hens (2.25 kg). The climatological data of air temperature and relative humidity used to estimate Temperature and Humidity Index (THI) and EP were collected in the IAPAR (Instituto Agronômico do Paraná) meteorological field stations from Paraná State. The use of ECS of air provides a significant reduction in the THI values, in all locations and periods of the years studied. Considering the average values, the THI of 65.99 can be reduced to 62.52 when it cooling the air. The annual EP ranged from 0.748 and 0.784. When utilizing the ECS of air was possible to get...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Produção animal; Zootecnia.
Ano: 2014
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/7766

Rendimento forrageiro da Brachiaria brizantha cv. marandu submetida à doses crescentes de fósforo
Provedor de dados: 22
Autores: Edson Marcos Viana Porto; Universidade Estadual de Montes Claros (UNIMONTES); Dorismar David Alves; Universidade Estadual de Montes Claros (UNIMONTES); Cláudio Manoel Teixeira Vitor; Universidade Federal de São João Del-Rei (UFSJ); Virgílio Mesquita Gomes; Universidade Estadual de Montes Claros (UNIMONTES); Marcos Ferreira da Silva; Universidade Estadual de Montes Claros (UNIMONTES); Andréia Márcia Santos de Souza David; Universidade Estadual de Montes Claros (UNIMONTES).
Objetivou-se avaliar o rendimento forrageiro da Brachiaria brizantha cv. Marandu quando cultivada com doses crescentes de f&amp;oacute;sforo, para se obter subs&amp;iacute;dios para uma recomenda&amp;ccedil;&amp;atilde;o mais adequada. O experimento foi conduzido entre os anos 2006/2007 em casa de vegeta&amp;ccedil;&amp;atilde;o pertencente a Universidade Estadual de Montes Claros [1]em Jana&amp;uacute;ba, MG. As unidades experimentais utilizadas foram vasos pl&amp;aacute;sticos com capacidade para 6 dm&amp;sup3; de solo, preenchidos com latossolo vermelho eutr&amp;oacute;fico. O experimento foi montado com seis doses de P (0, 30, 60, 90, 120, 150 Kg de P2O5 /ha) na forma de superfosfato simples, em um delineamento inteiramente casualizados, com cinco...
Tipo: Artigo Avaliado por Pares
Palavras-chave: Produção vegetal; Zootecnia; Agronomia.
Ano: 2012
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/4238

Quality of milk and its correlation techniques with management of milking
Provedor de dados: 22
Autores: Eckstein, Ilton Isandro; Pozza, Magali Soares dos Santos; Zambom, Maximiliane Alavarse; Ramos, Carlos Eduardo Crispim de Oliveira; Tsutsumi, Claudio Yuji; Fernandes, Tatiane; Eckstein, Everline Inês; Busanello, Marli.
The study was conducted in 32 dairy production systems (DPS) located in the city of Toledo-Paraná, and aimed at verifying the practices of hygiene applied during milking, as well as,  observing their correlation with the total bacterial count (TBC), the somatic cell count (SCC) and the milk composition. We obtained 24 milk analyses in two years of collecting for each DPS. Along with the milk analysis, we collected some information from DPS by conducting a questionnaire where data were obtained,  regarding to the  practices  of  hygiene  during milking. For the statistical analysis, we used the Pearson correlation, seeking to verify the correlation within the hygiene practices concerning to the milk composition, SCC and TBC. We found, by the average results...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ciência e tecnologia de alimentos; Zootecnia; Produção animal.
Ano: 2014
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/7071

Probióticos, seus modos de ação e a produção animal
Provedor de dados: 22
Autores: Marli Busanello; Universidade Estadual de Londrina.
O uso de antimicrobianos na produ&amp;ccedil;&amp;atilde;o animal tem comprovada capacidade de melhorar o desempenho dos animais, por&amp;eacute;m o uso destes aditivos vem sendo restringido devido &amp;agrave; possibilidade de deixar res&amp;iacute;duos na carne, e a indu&amp;ccedil;&amp;atilde;o de resist&amp;ecirc;ncia cruzada para bact&amp;eacute;rias patog&amp;ecirc;nicas em humanos. Dispondo-se a atender o mercado consumidor que cada vez mais demanda alimentos seguros e de qualidade, tem-se buscado alternativas ao uso de antimicrobianos, entre estas os probi&amp;oacute;ticos, micro-organismos vivos que administrados em quantidades adequadas conferem benef&amp;iacute;cios &amp;agrave; sa&amp;uacute;de do hospedeiro, e muitos mecanismos s&amp;atilde;o...
Tipo: Artigo Avaliado por Pares
Palavras-chave: Zootecnia; Produção animal.
Ano: 2013
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/6990

Nile tilapia carcass meal in diets for rabbits: growth performance and serum lipids
Provedor de dados: 22
Autores: Legnani Galan, Guilherme; Rodrigues de Souza Franco, Maria Luiza; Scapinello, Cláudio; Netto de Oliveira, Edna Regina; Dorta Souza, Emilia; Gasparino, Eliane; Del Vesco, Ana Paula.
This study aimed to determine the performance and serum lipids of rabbits with 35 to 65 days of age fed with diets enriched with meal filleting residue of Nile tilapia (Oreochromis niloticus). The rabbits were randomly allocated to five treatments with the inclusion of different levels of meal (0, 1, 2, 3 and 4%) in the ration. Diets were formulated to meet the requirements for growing animals. At slaughter blood was collected from each animal in the right jugular vein for analysis of serum lipids. There was no statistical difference in animal performance (P&lt;0.05) on HDL-cholesterol with the inclusion of meal filleting residue of Nile tilapia in the diet whose equation was ŷ=22+1.88Xi R2 = 0.87. The was a difference in the amount of blood calcium in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Produção animal.
Ano: 2013
URL: http://e-revista.unioeste.br/index.php/scientiaagraria/article/view/6940

Productivity of Tifton 85 grass irrigated and overseeded with winter forages
Provedor de dados: 2
Autores: Gomes, Éder Pereira; Rickli, Max Emerson; Cecato, Ulysses; Farhate, Camila Viana Vieira; Goes, Rafael Henrique de Tonissi e B. de; Oliveira, Elir de.
Intercropping with cool season species has been used as an alternative to increase productivity off-season (fall/winter) of irrigated pastures. This study was conducted from May to October 2009 in Icaraíma, Paraná State, to evaluate the productivity and morphological composition of the Tifton 85 grass overseeded with winter forage in irrigated system. The experiment was a randomized block design with four replicates and repeated measures over time. The experimental plots consisted of five treatments, three as oats overseeding using the genotypes IAPAR 61, IPR 126, and FMS2 on Tifton 85 pasture and one as overseeding of oats combined with rye (IPR 126 + IPR 89) also on Tifton 85 grass and, finally, a control with only Tifton 85 without overseeding. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Forragicultura; Nutrição animal oats; Rye; Leaf/stem ratio; Morphological composition.
Ano: 2015
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/25512

Hay Tifton 85 grass under nitrogen doses in different days of regrowth
Provedor de dados: 2
Autores: Andrade, Weudes Rodrigues; Sales, Eleuza Clarete Junqueira de; Monção, Flávio Pinto; Gomes, Virgílio Mesquita; Rufino, Leidy Darmony de Almeida; Pires, Daniel Ananias de Assis.
The objective of this study was to evaluate the yield, nutritional value and potential ruminal degradation of Tifton 85 hay (Cynodon spp.) harvested at four regrowth ages (28, 35, 42 and 49 days) and fertilized with two nitrogen doses (N; 100 and 300 kg N ha-1). The experimental design was a randomized block design, arranged in a 4 x 2 factorial scheme, with six replications each. Nitrogen fertilization increased (p &lt; 0.05) dry matter yield and digestible dry matter production of hay and also lignin and crude protein contents. Nitrogen fertilization increased (p &lt; 0.01) the dry matter yield and the digestible dry matter production of hay, as well as lignin (p = 0.01) and crude protein (p = 0.01). The neutral detergent fiber corrected for ash and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ciências Agrárias; Zootecnia; Forragicultura e Pastagens fertilizing; Cynodon spp.; Digestibility; Neutral detergent fiber; Lignin.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/37692

Production of laying hens in different rearing systems under hot weather
Provedor de dados: 2
Autores: Araujo Netto, Daniel; Lima, Héder José D'Ávila; Alves, Julia Rodrigues; Morais, Bianca Corrêa de; Rosa, Mauricio Silva; Bittencourt, Tatiana Marques.
 The environment is very important for the performance of laying hens; thus, techniques are required to improve production systems, providing better welfare for poultry and consequent increase in the quality of the final product, the egg. This study aimed to evaluate the effects of rearing system, on the floor and in cage, on the performance and egg internal and external quality of laying hens. A total of 320 Hysex Brown laying hens, with 34-43 weeks days of age, was distributed in a completely randomized design, with two treatments, floor and cage, with 10 replicates each. The parameters evaluated were: individual feed intake, egg production per replicate, feed conversion per dozen eggs, egg weight; weight and percentage participation of shell, albumen...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Produção Animal; Meio ambiência e instalações. laying hens; Cage; Egg quality; Alternative system.
Ano: 2017
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/37677

Sunflower cake in diets for beef cattle: digestibility, kinetics and in vitro ruminal fermentation parameters
Provedor de dados: 2
Autores: Goes, Rafael Henrique de Tonissi e Buschinelli  de; Silva, Luiz Henrique Xavier da; Díaz, Tatiana García; Branco, Antonio Ferriani; Teodoro, Ana Lúcia; Ferreira, Gislaine Ribeiro.
 The objective of this study was to evaluate the effect of the inclusion of sunflower cake replacing soybean meal in beef cattle diets on the in vitro digestibility of dry matter (IVDDM), organic matter (IVDOM), crude protein (IVDCP) and the ruminal fermentation kinetics and parameters. The experiment was analyzed according to a completely randomized design. The treatments consisted of four levels of sunflower cake, 0, 200, 400, 600 g kg-1, replacing soybean meal in the concentrate of beef cattle diets. The coefficients of IVDDM, IVDOM and IVDCP presented a quadratic effect with the addition of sunflower cake. The soluble fraction (fraction B) degradation rate and total gas production decreased linearly with the inclusion of sunflower cake. Values of pH in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Nutrição e Alimentação Animal; Avaliação de Alimentos para Animais ammonia; Co-products; Ruminal fermentation; Oilseed; PH.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/39492

Additive containing homo and heterolactic bacteria on the fermentation quality of maize silage - doi: 10.4025/actascianimsci.v35i4.18833
Provedor de dados: 2
Autores: Junges, Daniel; Universidade de São Paulo; Schmidt, Patrick; Universidade de São Paulo; Novinski, Charles Ortiz; Universidade Federal do Paraná; Daniel, João Luiz Pratti; Universidade de São Paulo.
This trial evaluated the addition of Lactobacillus plantarum, L. brevis and Enterococcus faecium combo additive against a control treatment. The silages were made in laboratory silos that were stored for 30, 60, 90 or 120 days before opening. We evaluated the chemical composition of the forage before and after ensiling and the fermentative losses of silages. The additive decreased (p &amp;lt; 0.01) effluent production (11.4 kg ton-1) compared to control silage (14.0 kg ton-1), but it increased (p &amp;lt; 0.01) the Neutral Detergent Fiber (NDF) and Acid Detergent Fiber (ADF) from 45.6% and 24.5% to 47.0 and 25.1% for control and additive silages, respectively. The storage periods affected (p &amp;lt; 0.01) effluent production, Dry Matter Losses (DML), NDF,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: 4.03.05.00-7; Zootecnia; Forragicultura  silagem  alimentação animal aerobic stability; Effluent  gases; Lactobacillus brevis; Lactobacillus plantarum; Losses Aerobic stability; Effluent; Gases; Lactobacillus brevis; Lactobacillus Plantarum; Losses.
Ano: 2013
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/18833

Ryegrass (Lolium multiflorum) BRS Ponteio and wheat (Triticum aestivum) BRS Tarumã pasture with different doses of ammonium sulfate as topdressing
Provedor de dados: 2
Autores: Timm, Luiz Carlos; Haygert-Velho, Ione Maria Pereira; Bolke, Delvacir Rezende; Antunes, Gustavo Veiverberg; Alessio, Dileta Regina Moro; Velho, João Pedro.
This study analyzed the behavior of the annual ryegrass (Lolium multiflorum) BRS Ponteio and dual-purpose wheat (Triticum aestivum) BRS Tarumã with different doses of ammonium sulfate as topdressing and evaluated the exponential growth model to explain the physiological development of both species. For each species, a completely randomized design was used with four replications per treatment with 9m2 area, in which the following treatments were distributed: 0, 150, 250, 350 and 450 kg nitrogen per hectare applied as ammonium sulfate. The cumulative and adjusted productions to the exponential growth model at the end of the cycle were, respectively: BRS Ponteio 150 = 5,620; 250 = 5,920; 350 = 7,585 and 450 = 8,491 and BRS Tarumã 150 = 3,922; 250 = 5,060; 350...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ciências Agrárias; Zootecnia; Pastagem e Forragicultura degree-days; Lolium multiflorum; Dry matter; Exponential model; Nitrogen; Triticum aestivum.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/44026

Broilers thermal comfort and performance utilizing two different wood-burning heating systems
Provedor de dados: 2
Autores: Vigoderis, Ricardo Brauer; Silva, João Manoel da; Guiseline, Cristiane; Pandorfi, Heliton; Vieira, Deyvid Vilela.
The objective of this study was to evaluate the thermal comfort and performance of broilers in their initial stage of development utilizing two different heating systems. The experiment was conducted in two sheds placed on a commercial farm. The heating systems were: indirect heating furnace and radiation heating drums. At the beginning of the heating phase the birds were confined in an area corresponding to 360 m² in shed 1 and 180 m² in shed 2, delimited by polyurethane curtains, allowing a density of 58.8 birds m-². The variables: dry bulb temperature (Tdb), relative humidity (RH%) and temperature and humidity index (THI) were calculated. Measurements were performed using continuous reading data loggers at 15-minute intervals throughout the experimental...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Produção Animal; Avicultura chicks; Heating; Poultry; Animal comfort.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/39194

Banana leaf in the diet of laying hens in cage free system
Provedor de dados: 2
Autores: Silva, Nayara Emanuelle Matos e; Lima, Heder José D'Ávila; Valentim, Jean kaique; Tossué, Fernandes Jesuino Mukissaí; Bittencourt, Tatiana Marques; Velarde, Jonatan Mikhail Del Solar.
The aim of this research was evaluate the productive performance, egg quality and the endoparasites presence on Carijo laying hens in Cage Free system, fed with two experimental diets, one of them supplemented with fresh banana leaf in natura. Were used 196 laying hens with twenty-four weeks of age, distributed in a completely randomized design with 14 boxes, two experimental diets and seven replicates, by treatment with fourteen birds per experimental unit. The variables analyzed were: feed intake; egg production; egg mass: feed conversion per egg mass; feed conversion per dozen eggs; egg weight; albumen weight; yolk weight; shell weight; yolk percentage; albumen percentage shell percentage; yolk pigmentation and the presence of endoparasites. No...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Avicultura; Nurição de não ruminantes Performance; Banana production; Endoparasites; Cage-Free.
Ano: 2019
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/46908

Evaluation of body weight prediction Equations in growing heifers
Provedor de dados: 2
Autores: Franco, Marcia de Oliveira; Marcondes, Marcos Inácio; Campos, José Maurício de Souza; Freitas, Denise Ribeiro de; Detmann, Edenio; Valadares Filho, Sebastião de Campos.
This study was realized to evaluate prediction models for body weight (BW) using body measurements as heart girth (HG), wither height (WH), hip width (HW), body length (BL) and hip height (HH), and develop new Equations to predict the BW of Holstein and crossbred heifers. Prediction Equations (1, 2, 3, 4, 5 and 6) proposed in previous studies were tested, while body measurements, which were more significant in terms of predicting BW, were used to obtain new Equations. Heart girth was the body measurement with the greater correlation with BW. Equation 4 presented the best prediction results, showing a low average deviation, high accuracy and precision. Equations 1 and 2 predicted with a high presence of bias, while 2 had the lowest value of the concordance...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Produção animal; Bovinocultura leiteira body measurements; Dairy heifers; Heart girth; Holsteins.
Ano: 2017
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/33118

Nutritive value of Tifton 85 hay ammoniated with urea
Provedor de dados: 2
Autores: Almeida, João Carlos de Carvalho; Morais, Leonardo Fiusa de; Moreira, Thaís Gláucia Bueno; Abreu, João Batista Rodrigues de; Morenz, Mirton José Frota.
 The effect of ammonization was evaluated with urea at doses of 1, 2, 3 and 4%, on the basis of dry matter (DM) on Tifton 85 hay harvested at an advanced stage of development in the periods of 30 and 45 days, through analysis of dry matter, ash, ether extract (EE), neutral (NDF) and acid (ADF) detergent fiber, NDF corrected for ash and protein (NDFap), cellulose, lignin, crude protein (CP), acid detergent insoluble nitrogen (ADIN), fractionation of carbohydrates and in vitro gas production (Parameters: Vf1, k1, Vf2, k2 and L). The variables DM, EE, NDF, ADF, lignin, cellulose, NDFap, fraction A + B1, fraction B2 and C of carbohydrates, and the Vf1 and Vf2 parameters were influenced by treatments (p &lt; 0.05). While DM, NDF, NDFap, fraction A + B1, C, CP...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Forragicultura; Tratamento de volumosos chemical treatment; Gas production; Low quality forages.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/42473

Indicators of land use by cattle: associations among methods and role of environmental factors
Provedor de dados: 2
Autores: Costa, Mateus José Rodrigues Paranhos da; Páscoa, Adriano Gomes; Sant'Anna, Aline Cristina; Silva, Lívia Carolina Magalhães; Jung, Jens.
The objectives of this study were to investigate the associations among direct and indirect indicators of land use by cattle and to understand the role of some environmental factors on the definition of these indicators. The study was carried out in two areas, Nature Reserve (63.6 ha) and Private Area (30.4 ha), with 53 Hereford animals in each area. Daytime observations of animals’ location were used as direct indicator of land use; while cattle track and dung pat distributions throughout the areas were used as indirect indicators. Environmental characteristics recorded were: terrain slope, prevalence of woody vegetation cover (forests, isolated tress and open grasslands), as well as the position of fences, water sources and salt blocks. Spatial...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Ecologia dos Animais Domésticos e Etologia beef cattle; Tracks  dung pats; Spatial statistical analysis; Geographic information system.
Ano: 2017
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/35426

Sugar cane fresh or ensiled with or without bacterial additive in diets for dairy cows
Provedor de dados: 2
Autores: Moreira, Jeruzia Vitória; Pereira, Mara Lúcia Albuquerque; Azevedo, Saulo Tannus; Signoretti, Ricardo Dias; Siqueira, Gustavo Rezende; Pires, Aureliano José Vieira.
This study evaluated the effect of using fresh sugar cane, sugar cane silage with or without Lactobacillus buchneri, and burnt sugar cane silage with or without L. buchneri on ingestive behavior, nitrogen balance and synthesis of microbial nitrogen compounds of dairy cows. Five ¾ Holstein x Gir crossbred cows, assigned to a 5 x 5 Latin square design, were given diets with a 60:40 forage: concentrate ratio on a dry matter basis, to meet an average body weight of 550 kg and production of 15 kg of milk per day. The treatment with fresh sugar cane showed higher values (p &lt; 0.05) for dry matter feed efficiency (3,133.3 vs 2,234.47 g DM h-1) and rumination (1,642.3 vs 1,222.93 g DM h-1) compared to the silages. There was a shorter total chewing time (58.7 vs...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ciências Agrárias; Zootecnia; Nutrição Animal Lactobacillus buchneri; Microbial synthesis; Nitrogen balance; Saccharum officinarum.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/22475

Microbial protein synthesis and nitrogen metabolism in cows bred on tropical pasture and fed on cassava root and corn
Provedor de dados: 2
Autores: Silva, Ádler Carvalho da; Universidade Estadual do Sudoeste da Bahia; Figueiredo, Mauro Pereira de; Universidade Estadual do Sudoeste da Bahia; Bonomo, Paulo; Universidade Estadual do Sudoeste da Bahia; Pereira, Mara Lúcia Albuquerque; Universidade Estadual do Sudoeste da Bahia; Luz, Yann dos Santos; Universidade Estadual do Sudoeste da Bahia; Santos, Edileusa de Jesus; Universidade Estadual do Sudoeste da Bahia.
Current experiment evaluated the effect of replacement of full corn meal by dehydrated ground cassava roots at levels 0%, 25%, 50%, 75% and 100% in experimental supplements for lactating cows grazing on irrigated and fertilized tropical pastures. Ten Holstein cows were divided into two 5 x 5 Latin squares, with average initial 150 days of lactation, milk production 22±3.30 kg day-1 at the beginning of experiment and initial body weight of 603±65 kg. Cows were maintained on pasture consisting of elephant grass (Pennisetum purpureum, Schum) cultivar Pioneiro, intercropped with Tifton 85 (Cynodon nlemfuensis), fertilized with 600 kg nitrogen per hectare year-1. There was no significant difference (p &amp;gt; 0.05) between the substitution levels of corn meal...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ciências agrárias; Zootecnia; Nutrição e Alimentação Animal; Avaliação de Alimentos para Animais microbial nitrogen; Purine derivatives; Urea nitrogen plasma.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/22161

Evaluation of digestion procedures in Kjeldahl method to quantify total nitrogen in analyses applied to animal nutrition
Provedor de dados: 2
Autores: Silva, Tadeu Eder da; Detmann, Edenio; Franco, Marcia de Oliveira; Palma, Malber Nathan Nobre; Rocha, Gabriel Cipriano.
The effects of the salt-to-metal catalyst ratio and amount of digestion mixture on total nitrogen content in different materials using the Kjeldahl method were evaluated. Four samples with low nitrogen contents and four samples with high nitrogen contents were analyzed. The study evaluated two ratios of salt (sodium sulfate) to metal catalyst (copper sulfate) in the digestion mixture (10:1 and 20:1) and three amounts of digestion mixture per sample (1.0, 1.5, and 2.0 g 200 mg-1). There was an interaction between low-nitrogen material and amount of digestion mixture on nitrogen contents. Samples of cattle feces and corn presented higher nitrogen content when 1.5 and 2.0 g of digestion mixture were used. The high-nitrogen materials presented higher nitrogen...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Análise de Alimentos crude protein; Digestion mixture; Feed analysis.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/29171

Anatomia e cinética de degradação do feno de Manihot glaziovii - doi: 10.4025/actascianimsci.v32i2.8800
Provedor de dados: 2
Autores: França, Andrezza Araújo; UFPB; Guim, Adriana; UFRPE; Batista, Ângela Maria Vieira; UFRPE; Pimentel, Rejane Magalhães de Mendonça; UFRPE; Ferreira, Geane Dias Gonçalves; UFRPE; Martins, Isis Darlene Sabóia Leal; UFRPE.
Avaliaram-se a composição química, o teor de compostos secundários, a degradabilidade in situ, a anatomia e a degradabilidade dos tecidos do feno de maniçoba, a partir de plantas em início de frutificação, oriundas de uma vegetação de caatinga em Ibimirim, Estado do Pernambuco. O caule apresentou células com variados graus de lignificação, destacando-se a presença de fibras gelatinosas, parênquima medular lignificado e espessas paredes celulares no xilema. As folhas se destacam pela presença da estrutura girder, caracterizam-se pela grande quantidade de mesofilo, constituído por células com paredes delgadas, contribuindo para a degradabilidade de matéria seca. Idioblastos contendo drusas de oxalato foram encontrados nos tecidos vasculares, na nervura...
Tipo: Análise laboratorial; discrição de caracteres
Palavras-chave: Ciências Agrárias; Zootecnia; Pastagem e Forragicultura parede celular; Lignina; Microscopia vegetal; Digestibilidade; Forrageira nativa Pastagem e Forragicultura cell wall; Lignin; Plant microscopy; Digestibility; Native forage.
Ano: 2010
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/8800

Relationship of total bacterial and somatic cell counts with milk production and composition – multivariate analysis
Provedor de dados: 2
Autores: Botton, Fernanda Scolari; Alessio, Dileta Regina Moro; Busanello, Marcos; Schneider, Catia Letícia Corrêa; Stroeher, Fernanda Hammes; Haygert-Velho, Ione Maria Pereira.
 This study was realized to evaluate the monthly production, composition and quality of milk (total and defatted dry extract, lactose, fat and protein) and their relation to somatic cell count (SCC) and total bacterial count (TBC) using multivariate statistical analyses. The data are from a dairy farm for the period of two years (from January 2015 to December 2016). The SCC and TBC variables were transformed to somatic cell score (SCS) and log10 (LogTBC). Factor analysis, discriminant analysis and cluster analysis were used. Through factor analysis, it was found two factors that together explained 69.5% of the total data variation. The first factor represented the inverse relationship between lactose versus fat and protein content, while the second factor...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Produção de ruminantes; Manejo animal cluster analysis; Factor analysis; Bos taurus; Fat; Lactose; Protein.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/42568

Tannin on non-degradable digestible protein from proteic sources in cattle rumen
Provedor de dados: 2
Autores: Mezzomo, Rafael; Paulino, Pedro Veiga Rodrigues; Detmann, Edenio; Teixeira, Cesar Roberto Viana; Alves, Lyvian Cardoso; Assunção, Rafael Neiva.
Several tannins at different inclusion levels of protein-rich food and water addition on the amount of rumen undegradable protein (RUP) and digestible RUP (RUPd) in the rumen were evaluated. Sixty treatments were analyzed, namely: three mixtures of tannin (with different concentrations of hydrolysable and condensed tannins) were added at four different amounts (0, 1, 2.5 and 5%) in three protein foods (soybean meal, whole soybean meal and peanut meal) with and without moisture. Samples were incubated in cattle, via rumen cannula, in triplicate, to quantify rumen degraded protein (RDP), rumen undegradable protein (RUP) and digestible RUP (RUPd). Divergence in protein nutritional rate, based on discriminating variables among the groups, was estimated by...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Análise de alimento degradation; Protein efficiency; Rumen fermentation.
Ano: 2015
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/28126

Nopalea cactus pear fertilized with nitrogen: morphometric, productive and nutritional characteristics
Provedor de dados: 2
Autores: Leite, João Ricardo Avelar; Sales, Eleuza Clarete Junqueira de; Monção, Flávio Pinto; Guimarães, Adriano de Souza; Rigueira, João Paulo Sampaio; Gomes, Virgílio Mesquita.
 This study aimed to evaluate the structural, productive and nutritional characteristics of cactus pear (Nopalea cochenillifera Salm Dyck. cv. Miúda/Doce) under five nitrogen doses and two planting orientations. A randomized block design in a 5 x 2 factorial scheme was used in the scheme: five nitrogen doses (0, 150, 300, 450 and 600 kg of N ha-1), and two planting orientations (North/South and East/West), with three replicates. Except for the thickness of the secondary (p = 0.04) and tertiary cladodes (p = 0.02), the morphometric characteristics of the cactus pear were not influenced by the nitrogen doses (p &gt; 0.05). The mean height was 120 cm, the areas of the primary, secondary and tertiary cladodium were 160.9; 208 and 158.4 cm², respectively. The...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ciências Agrárias; Zootecnia; Forragicultura e Pastagens biomass; Management; Morphometry; Semiarid; Viability.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/38325

Concentrate levels of crossbred bulls slaughtered at 16 or 22 months: performance and carcass characteristics
Provedor de dados: 2
Autores: Pinto, Adriana; Passetti, Rodrigo Augusto Cortêz; Guerrero, Ana; Rivaroli, Dayane Cristina; Perotto, Daniel; Prado, Ivanor Nunes do.
This study was performed to assess the animal performance of 97 bulls, ½ Purunã vs. ½ Canchim, that were slaughtered at 16 (16M) or 22 (22M) months with three concentrate levels (0.8, 1.2, and 1.6%) of body weight (BW). The initial body weight was lower for the 16M bulls. The final body weight and hot carcass weights were similar between the two slaughter ages. The hot carcass dressing was higher for 22M bulls. The average daily gain was higher for 16M bulls. The feed intake and dry matter feed conversion were similar between 16 and 22M bulls. The carcass length, marbling, and bone percentage were lower for 16M bulls. However, the Longissimus dorsi muscle area was higher for 16M bulls. The leg length, cushion thickness, fat thickness, conformation, colour,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Produção animal; Qualidade de carne bovine; Feed intake; Crossbreeding; Longissimus.
Ano: 2015
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/25116

Carcass characteristics, meat quality, feeding behavior of Nelore heifers fed diets containing sunflower pie
Provedor de dados: 2
Autores: Alves, Karine Regina; Silva, Leandro das Dores Ferreira da; Ribeiro, Edson Luís Azambuja; Guerra, Geisi Loures; Paiva, Fernando Henrique Pereira de; Henz, Éderson Luis.
The aim was to evaluate the feeding behavior, carcass characteristics and meat quality of Nelore heifers fed sunflower pie replacing cottonseed meal. They were used 30 heifers with average initial weight of 274 kg ± 28 kg and average age of 24 months, confined for 76 days. The design was completely randomized with five treatments (0, 150, 300, 450 and 600 g kg-1 DM) and six replicates per treatment. By completing 24 hours after slaughter, it evaluated muscle conformation and degree of finish made the longissimus dorsi at the 13th rib. A representative sample between the 10th and 12th ribs was collected for evaluation of the physical components of carcasses. As well as the other variables, the hot carcass weight, dressing percentage, carcass length and rib...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ciências Agrárias; Zootecnia; Nutrição Animal ribeye area; Softness; Marbling; Carcass yield.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/30183

Desempenho da tilápia-do-Nilo arraçoada com dietas contendo farinha de sangue bovino atomizado ou convencional - doi: 10.4025/actascianimsci.v33i3.10736
Provedor de dados: 2
Autores: Narváez-Solarte, Willian Vicente; Universidad de Caldas; Pezzato, Antonio Celso; Faculdade de Medicina Veterinária e Zootecnia, UNESP - Botucatu; Pezzato, Luiz Edivaldo; Faculdade de Medicina Veterinária e Zootecnia, UNESP - Botucatu; Barros, Margarida Maria; Faculdade de Medicina Veterinária e Zootecnia, UNESP - Botucatu; Polycarpo, Gustavo do Valle; Faculdade de Medicina Veterinária e Zootecnia, UNESP - Botucatu.
Foi avaliado o desempenho e os índices de rendimento da tilápia-do-Nilo (Oreochromis niloticus) alimentada com níveis crescentes de farinha de sangue atomizado (FSA) ou de farinha de sangue convencional (FSC) em dietas formuladas com base em aminoácidos digestíveis. Foram utilizados 252 alevinos, distribuídos num delineamento inteiramente casualizado, em esquema fatorial (2 x 4) + 1, duas classes de farinha de sangue com quatro níveis de inclusão de cada farinha na dieta, e uma dieta-controle, com quatro repetições. Os tratamentos consistiram em uma dieta-controle à base de farelo de soja, contendo 34% de proteína digestível (PD) e 3.200 kcal de energia digestível kg-1 (ED), mais quatro rações formuladas com FSA e quatro rações com FSC, com inclusões de 5,...
Tipo: Pesquisa acadêmica
Palavras-chave: Ciências Agrárias; Zootecnia; Aqüicultura; Nutrição e Alimentação Animal Aminoácidos; Desnaturação; Proteína; Oreochromis niloticus amino acids; Degradation; Protein; Oreochromis niloticus.
Ano: 2011
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10736

Estimates of in situ digestibility and fibrous compounds in feeds for ruminants
Provedor de dados: 2
Autores: Kuwahara, Frank Akiyoshi; Souza, Gilberto Batista de; Soares, Viviane Faria; Ferreira, Reinaldo de Paula; Costa, Ciniro; Meirelles, Paulo Roberto de Lima.
Current paper assesses the relationship between in situ incubation time, particle size and types of materials on estimates of indigestible fractions of dry matter (iDM) and neutral detergent fiber (iNDF) in cattle feed and feces. Samples of soybean meal, alfalfa and feces of cattle fed on high concentrated diets were analyzed. The samples were processed in a Wiley mill, with 0.5 and 1.5 mm porosity for food and 1.5 mm for feces, which were packed in 4 × 5 cm F57 bags (Ankon®) and nonwoven fabric (100 g m-2) of two brands. The material was divided into two groups, with and without treatment with acetone, and five replications. Samples of each group were incubated in the rumen of a multiparous cow adapted to a 70:30 diet, forage:concentrate diet, for 240...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Nutrição de ruminantes; Digestibilidade digestion; Neutral detergent fiber; Nonwoven fabric; F57.
Ano: 2015
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/24980

Losses and nutritional value of elephant grass silage with inclusion levels of cottonseed meal - doi: 10.4025/actascianimsci.v35i2.13736
Provedor de dados: 2
Autores: Viana, Pablo Teixeira; Universidade Estadual do Sudoeste da Bahia; Teixeira, Fábio Andrade; Universidade Estadual do Sudoeste da Bahia; Pires, Aureliano José Vieira; Universidade Estadual do Sudoeste da Bahia; Carvalho, Gleidson Giordano Pinto de; Universidade Federal da Bahia; Figueiredo, Mauro Pereira de; Universidade Estadual do Sudoeste da Bahia; Santana Junior, Hermógenes Almeida de; Universidade Estadual do Sudoeste da Bahia.
The experiment was conducted to evaluate losses and nutritive value of elephant grass silage containing increasing levels of cottonseed meal. The experimental design was completely randomized, with five treatments: 0, 7, 14, 21 and 28% inclusion of cottonseed meal, and four replications. The material was chopped and packed in PVC silos and stored for 80 days. The pH and dry matter (DM), crude protein, lignin and ether extract of the silages increased linearly with the addition of cottonseed meal, while the levels of acid detergent insoluble nitrogen, neutral detergent fiber, acid detergent fiber, cellulose and hemicellulose decreased linearly. The addition of 28% cottonseed meal reduced the in situ disappearance of DM (48h) to values lower than those of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Forragicultura; Produção e Avaliação de Alimentos by-product; Effluent; Ensiling; Gossypium hirsutum.
Ano: 2012
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/13736

Nitrogen metabolism and microbial synthesis in sheep fed diets containing slow release urea to replace the conventional ure
Provedor de dados: 2
Autores: Alves, Evanilton Moura; Instituto Federal Baiano; Magalhães, Daniel Rodrigues; Instituo Federal Baiano; Freitas, Mazzilli Amaral; Universidade Estadual do Sudoeste da Bahia; Santos, Edileusa de Jesus dos; Universidade Estadual do Sudoeste da Bahia; Pereira, Mara Lúcia Albuquerque; Universidade Estadual do Sudoeste da Bahia; Pedreira, Márcio dos Santos; Universidade Estadual do Sudoeste da Bahia.
This study aimed to evaluate the effects of adding slow release urea to replace conventional urea in diets for feedlot sheep on nitrogen metabolism and microbial protein synthesis. The substitution levels used as treatments were 0, 20, 40, 60 and 80%. We used 25 Santa Ines x SRD sheep distributed in the treatments in a completely randomized design. The animals were given 50% Tifton-85 hay and 50% concentrate, comprising diets with approximately 12% crude protein. The ingestion, digestion and excretion of nitrogen were not affected by the addition of slow release urea to the diet, in which the digested nitrogen accounted for 72.98% of the ingested. The concentration of plasma urea-N showed a quadratic variation, with the maximum at the level of 72.18%...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Nutrição animal; Avaliação de alimentos nitrogen balance; Microbial efficiency; Non-protein nitrogen.
Ano: 2014
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/21377

Morphogenesis and structure of Tifton 85 cultivated in subtropical climate and fertilized with nitrogen
Provedor de dados: 2
Autores: Tiecher, Diego Daniel; Rocha, Marta Gomes da; Pötter, Luciana; Salvador, Paulo Roberto; Bergoli, Tuani Lopes; Milanesi, Gabriela Descovi.
The experiment evaluated the morphogenesis and structure of Tifton 85 (Cynodon spp.) cultivated in subtropical climate and fertilized with nitrogen (N). The experiment was a completely randomized design with four levels of N (Zero; 75; 150 or 225 kg ha-1) in nine replicates per area. The experimental animals were Suffolk female lambs. The grazing method was continuous to maintain the sward height at 15 cm ± 10%. The stem expansion increased by 0.000027 cm degree-days-1 to each kg N applied (linear model). According to nonlinear model, the highest stem expansion (0.0226 cm degree-days-1) was observed with the use 220.1 kg ha-1 N. The leaf lifespan fitted a linear regression model, with increase of 50 degree-days leaf -1, comparing the levels zero and 225 kg...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Medicina Veterinária; Agronomia Cynodon spp.; Phyllochron; Marked tillers; Urea.
Ano: 2016
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/32147

Assessing the nutritional value of agroindustrial co-products and feed through chemical composition, in vitro digestibility, and gas production technique
Provedor de dados: 2
Autores: Olivo, Paula Martins; Santos, Geraldo Tadeu dos; Ítavo, Luís Carlos Vinhas; Silva Junior, Ranulfo Combuca da; Leal, Eduardo Souza; Prado, Rodolpho Martin do.
Agroindustrial co-products are a viable alternative for use in animal nutrition. Tests were conducted using eight different types of co-products and feed to evaluate the chemical composition, in vitro digestibility of dry matter, crude protein and neutral detergent fiber, and gas production by them. The co-products tested were: coffee hulls; pelleted citrus pulp; grape residue; soybean hulls; cottonseed; cassava foliage; and foods usually supplied to ruminants: corn silage and ground corn concentrate. Data of in vitro digestibility of dry matter, crude protein and neutral detergent fiber were tested by analysis of variance using the least square method; the results of gas production were interpreted by a non-linear regression by the Gauss-Newton method;...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Zootecnia; Nutrição de Ruminantes alternative feed; Degradation; Fermentation; Gas production.s.
Ano: 2017
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/34024

Morphogenic, structural, productive and bromatological characteristics of Braquiária in silvopastoral system under nitrogen doses
Provedor de dados: 2
Autores: Carvalho, Zaqueu Gonçalves; Sales, Eleuza Clarete Junqueira de; Monção, Flávio Pinto; Vianna, Maria Celuta Machado; Silva, Edilane Aparecida; Queiroz, Domingos Sávio.
his study aimed to evaluate the effect of different doses of nitrogen fertilization on the morphogenic, structural, productive and chemical composition of Urochloa decumbens (Stapf) R. D. Webster cv. Basilisk in a silvopastoral system with eucalyptus. The experimental treatments consisted of pastures of Basilisk cultivar, fertilized with 0, 100, 200, 300 and 400 kg ha-1 year-1 of N, and intercropped with eucalyptus, clone GG 100 (Eucalyptus grandis x E. urophylla). The experimental arrangement followed a randomized block design with four replicates. The evaluated characteristics were: foliar appearance rate, phyllochron, leaf length, leaf elongation rate, leaf life span, foliar senescence rate, number of green leaves per tiller, number of senescent leaves...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ciências Agrárias; Zootecnia; Forragicultura e Pastagens chemical composition; Dry matter production; Eucalyptus; Leaf elongation rate; Urochloa decumbens.
Ano: 2018
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/39190