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Registros recuperados: 79
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Razão folha/haste e composição bromatológica da rebrota de estilosantes Campo Grande em cinco idades de corte - doi: 10.4025/actascianimsci.v33i3.10981 Animal Sciences
Moura, Raniel Lustosa de; Universidade Federal do Piauí; Nascimento, Maria do Perpétuo Socorro Cortez Bona do; Universidade Federal do Piauí; Rodrigues, Marcônio Martins; Universidade Federal do Piauí; Oliveira, Maria Elizabete; Universidade Federal do Piauí; Lopes, João Batista; Universidade Federal do Piauí.
Objetivou-se avaliar a composição bromatológica e a razão folha/haste do estilosantes Campo Grande, em cinco idades de rebrota com e sem adubação fosfatada. Adotou-se o delineamento experimental em blocos ao acaso, com quatro repetições, em esquema fatorial 2 x 5 dois níveis de fósforo (com e sem) e cinco idades de corte (30, 35, 40, 45 e 50 dias). O fósforo foi aplicado como superfosfato simples, equivalente a 50 kg há-1 de P2O5. A razão folha/haste (F/H) e os porcentuais de proteína bruta (PB) decresceram com o aumento da idade de rebrota, com e sem adubação fosfatada. A produtividade de proteína bruta (PPB), com adubação fosfatada, foi linear crescente e sem, foi quadrática, decrescendo entre 45 e 50 dias de rebrota. Os porcentuais de matéria seca (MS)...
Tipo: Pesquisa de campo e análise laboratorial Palavras-chave: 5.04.00.00-2 e 5.04.04.00-8 adubação fosfatada; Idade de rebrota; Proteína bruta; Stylosanthes phosphorus fertilization; Age of regrowth; Crude protein; Stylosanthes.
Ano: 2011 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10981
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Nutritional composition of pre-dried silage of different winter cereals Animal Sciences
Horst, Egon Henrique; Neumann, Mikael; Mareze, Juliana; Leão, Guilherme Fernando Mattos; Bumbieris Junior, Valter Harry; Mendes, Marcelo Cruz.
 This study aimed to assess the chemical composition of the forage and pre-dried silage from twelve winter cereals harvested at pre-flowering. We used black oat (Avena strigosa) cv. EMB 139 and cv. IAPAR 61; white oat (Avena sativa) cv. IPR and 126 hp. URS Taura; barley (Hordeum vulgare) cv. BRS Brau and cv. BRS Cauê; wheat (Triticum aestivum) cv. BRS Umbu and cv. BRS Tarumã; rye (Secale cereale) cv. Temprano and cv. BRS Serrano; and triticale (X. Triticosecale) cv. IPR and 111 hp. BRS Saturno. Plants were harvested at pre-flowering, when they were pre-dried and ensiled. The analysis of variance evidenced nutritional differences between species and cultivars. Triticale cv. IPR 111 showed notorious chemical characteristics in relation to the other...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bromatological composition; Crude protein; Vegetative stage; Wilted silage..
Ano: 2018 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/42500
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Produção, caracterização nutricional e fermentativa de silagens de sorgo forrageiro e sorgo duplo propósito - DOI: 10.4025/actascianimsci.v32i1.7200 Animal Sciences
Skonieski, Fernando Reimann; Programa de Pós-graduação em Zootecnia da Universidade Federal de Santa Maria; Nornberg, José Laerte; Departamento de Tecnologia e Ciência dos Alimentos da Universidade Federal de Santa Maria; Azevedo, Eduardo Bohrer de; Programa de Pós-graduação em Zootecnia da Universidade Federal do Rio Grande do Sul; David, Diego Bitencourt de; Programa de Pós-graduação em Zootecnia da Universidade Federal do Rio Grande do Sul; Kessler, Julcemar Dias; Programa de Pós-graduação em Zootecnia da Universidade Federal de Pelotas; Menegaz, André Luis; Programa de Pós-graduação em Zootecnia da Universidade Federal de Santa Maria.
Objetivou-se com o trabalho avaliar a produtividade de cinco híbridos de sorgo forrageiro e cinco híbridos de sorgo duplo propósito, bem como caracterizar os parâmetros fermentativos e nutricionais das silagens confeccionadas a partir desses materiais. O delineamento experimental foi de blocos ao acaso, com três repetições por tratamento. Os resultados foram submetidos à análise de variância e as médias dos híbridos, submetidas ao estudo de contrastes ortogonais, sorgo forrageiro “versus” sorgo duplo propósito. Todos os híbridos apresentam condições de ensilagem por meio da avaliação dos parâmetros fermentativos. As silagens elaboradas a partir de sorgo forrageiro apresentam menor teor de MS (33,01%) e pH (3,86), contra 38,32% de MS e 3,97 de pH das...
Palavras-chave: 5.04.00.00-2 Digestibilidade; Fibra em detergente neutro; Minerais; Nitrogênio amoniacal; PH; Proteína bruta Zootecnia Digestibility; Neutral detergent fiber; Minerals; Ammoniacal nitrogen; PH; Crude protein.
Ano: 2009 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/7200
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Nutritional value and chemical composition of pastures of peanut forage or red clover - doi: 10.4025/actascianimsci.v35i1.12692 Animal Sciences
Azevedo Junior, Ricardo Lima de; Universidade Federal de Santa Maria; Olivo, Clair Jorge; Universidade Federal de Santa Maria; Bem, Cláudia Marques de; Universidade Federal de Santa Maria; Aguirre, Priscila Flores; Universidade Federal de Santa Maria; Quatrin, Mauricio Pase; Universidade Federal de Santa Maria; Ávila, Suélen Capa de; Universidade Federal de Santa Maria.
With this study, we aimed at evaluating the nutritional value and chemical composition of forage legume intercropping with elephant grass (EG) + spontaneous growth species (SGS) + annual ryegrass (AR) + peanut forage (PF), as treatment T1; and EG + SGS + AR + red clover (RD), as T2. The EG was planted in 4-m spaced rows. The annual ryegrass was planted between the EG rows during the cool season; the RC was sowed and the PF was preserved. The experiment was performed between October 2009 and April 2010, with six grazing cycles. Samples of forage legume was collected, under simulated the grazing, to determine the levels of organic matter (OM), crude protein (CP), neutral detergent fiber (NDF), organic matter in situ digestibility (OMISD), total phenols (TF),...
Tipo: Pesquisa de campo Palavras-chave: 5.04.04.00-8 Arachis pintoi; Crude protein; Digestibility; Neutral detergent fiber; Phenolic compounds; Trifolium pratense.
Ano: 2013 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/12692
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Nutritional value of dual-purpose wheat genotypes pastures under grazing by dairy cows Animal Sciences
Quatrin, Mauricio Pase; Olivo, Clair Jorge; Bratz, Vinicius Felipe; Alessio, Vinicius; Santos, Fabiene Tomazetti dos; Aguirre, Priscila Flores.
In the south of Brazil, one of the major limitations to milk production is the low forage availability during autumn and early winter. The use of dual-purpose wheat genotypes is one alternative to minimize the impact of low forage availability in addition to produce grains. Therefore, this study aimed to evaluate the nutritional value of two dual-purpose wheat genotypes (BRS Tarumã and BRS Umbu). Structural composition and forage nitrogen uptake were evaluated. The nutritional value of the forage was analyzed for mineral matter (MM), organic matter (OM), neutral detergent fiber (NDF), crude protein (CP), total digestible nutrients (TDN), in situ organic matter digestibility (ISOMD) and in situ dry matter digestibility (ISDMD). Differences in NDF (49.03 vs....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Winter cereal; Digestibility; Nitrogen uptake; Crude protein; Triticum aestivum..
Ano: 2017 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/34420
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Produção e composição química da Brachiaria brizantha cv. MG-4 sob efeito de adubação com NPK - doi: 10.4025/actascianimsci.v33i2.9392 Animal Sciences
Teles, Thaisa Grazielle Radin Magalhães; Unidade de Ensino Superior Vale do Iguaçu; Carneiro, Maria Socorro de Souza; Universidade Federal do Ceará; Soares, Ismail; Universidade Federal do Ceará; Pereira, Elzania Sales; Universidade Federal do Ceará; Souza, Pedro Zione de; Universidade Federal do Ceará; Magalhães, João Avelar; Embrapa Meio-Norte.
O objetivo deste trabalho foi avaliar os efeitos de combinações de doses de nitrogênio, fósforo e potássio sobre a produção de matéria seca e composição química de Brachiaria brizantha cv. MG-4. O experimento foi composto por 16 tratamentos de NPK, conforme matriz experimental Plan Puebla II, distribuídos em delineamento inteiramente casualizado com cinco repetições. Utilizou-se um Argissolo Vermelho-Amarelo Distrófico Arênico e, como fonte de N, P e K, foram utilizados sulfato de amônio e uréia, superfosfato triplo e cloreto de potássio, respectivamente. O material coletado foi separado em colmo e folha, e pré-seco para a determinação da produção matéria seca de folhas (MSF), colmos (MSC) e total (MST), teor de proteína bruta (PB), N, P e K. A adubação...
Tipo: Pesquisa de campo Palavras-chave: 5.04.00.00-2 Fósforo; Nitrogênio; Potássio; Proteína bruta 5.04.04.00-8 Phosphorus; Nitrogen; Potassium; Crude protein.
Ano: 2011 URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/9392
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Engineering and proximate properties of miracle berry fruit (Synsepalum dulcificum L.) essential for its processing equipment design CIGR Journal
Fadeyibi, Adeshina.
This research was carried out to determine some physical, mechanical, mineral and proximate properties of miracle berry fruits (Synsepalum dulcificum L.) in the moisture range of 6.45− 9.73% (db). Physical properties including bulk density and terminal velocity were determined using standard methods. Mechanical properties including stiffness and deformation were determined using quasi-static compression analysis. Proximate and mineral compositions of the fruit including crude protein and calcium contents were determined using standard analytical methods. Results showed that the terminal velocity, stiffness, crude protein, calcium contents decreased generally with an increase in the moisture content (p < 0.05). The average values of the terminal...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Bulk density; Crude protein; Crude fibre; Mechanical properties; Miracle fruit.
Ano: 2021 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6011
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Nutritional quality of phaseolin types and morphotypes of green bean (Phaseolus vulgaris L.) Agrociencia
Carović-Stanko,Klaudija; Maloić,Mario; Pintar,Jasna; Liber,Zlatko; Radosavljević,Ivan; Bedeković,Dalibor; Guberac,Sunčica; Očić,Vesna; Lazarević,Boris.
Abstract The long tradition of green bean (Phaseolus vulgaris L.) cultivation in Croatia has resulted in the development of a landraces adapted to specific areas and chosen to suit different dietary habits. The hypothesis of our study was that nutritional quality (content of proteins, sugars, fibres, calcium, potassium and phosphorus in fresh pods) of 14 widely grown Croatian green bean accessions is affected by origin and morphotype. The analysed accessions were grown in non-replicated field plots where morphotypes were classified. The gene pool of adscription (Andean vs. Mesoamerican) of each accession was determined with the phaseolin marker, whereas nutritional quality traits were analysed according to standard analytical methods. The relationships...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crude protein; Gene pool; Growth habit; Functional food; Phosphorus; Potassium.
Ano: 2018 URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952018000400523
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Forage potential of native ecotypes of Paspalum notatum and P. guenoarum Anais da ABC (AABC)
STEINER,MARCELO G.; DALL’AGNOL,MIGUEL; NABINGER,CARLOS; SCHEFFER-BASSO,SIMONE M.; WEILER,ROBERTO L.; SIMIONI,CARINE; SCHIFINO-WITTMANN,MARIA TERESA; MOTTA,ÉDER A.M. DA.
ABSTRACT The Paspalum genus includes several species that are important for livestock in Rio Grande do Sul, such as P. notatum and P. guenoarum, typical of native pastures of the Pampa biome. The aim of this study was to investigate forage production and chemical composition of four ecotypes of these species in relation to the cv. ‘Pensacola’ (P. notatum). Ecotypes of P. guenoarum (Azulão and Baio) and P. notatum (André da Rocha and Bagual) and the cv. ‘Pensacola’ were evaluated for two years, during which four cuts/year were made. The work was carried out under field conditions at the Agronomic Experimental Station of the Federal University of Rio Grande do Sul (30°05’S; 51°39’W), in a completely randomized design. P. guenoarum stood out for higher...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Seasonality; Fiber; Forage production dry matter; Crude protein.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401753
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Productivity and nutritive value of elephant grass pastures under organic and conventional production systems Anais da ABC (AABC)
SIMONETTI,GABRIELA D.; OLIVO,CLAIR J.; SEIBT,DAIANE C.; BRATZ,VINICIUS F.; SAUTHIER,JULIO C.; ADAMS,CARINE B..
Abstract: Elephant grass (EG) (Pennisetum purpureum Schum.) have great importance in tropical and subtropical climates, especially on dairy farms. Normally, EG is established alone under high fertilization levels. EG in organic production system can improve low production costs and environmental issues, are still little known. The aim of this research was to evaluate the performance of herbage yield, nutritive value, extraction/ export nutrient and forage yield and animal responses. Three production systems of EG were analyzed: (i) EG mixed spontaneous-growing species (SGE) in warm-season and ryegrass (R) in cool-season under organic production; (ii) EG mixed SGE + R under conventional system (positive control); and (iii) EG based under conventional...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crude protein; Dairy cows; Pennisetum purpureum Schum; Production of forage; Stocking rate.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000300852
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Intake, apparent digestibility, rumen fermentation and nitrogen efficiency in sheep fed a tropical legume silage with or without concentrate Anais da ABC (AABC)
SILVA,LEANDRO D. DA; PEREIRA,OODILON G.; SILVA,THIAGO C. DA; VALADARES FILHO,SEBASTIÃO C.; RIBEIRO,KARINA G.; SANTOS,STEFANIE A..
Abstract Legume silage can increase the forage quality of the diets as well as supply it with nitrogen, calcium and phosphorus. The objective was to evaluate the intake, apparent digestibility, rumen fermentation and nitrogen efficiency in sheep fed a tropical legume silage with or without concentrate. Twelve crossbred sheep with an average initial body weight of 32.2 ± 1.26 kg, with six animals cannulated in the rumen were distributed into four 3 × 3 Latin squares. The treatments were 1) Stylosanthes silage without concentrate (StS), 2) Stylosanthes silage with concentrate (StS+C), and 3) corn silage with concentrate (CS+C). StS diet showed lowest intake, except for neutral detergent fiber (NDF). The diets StS+C and CS+C showed similar intake of dry...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alternative foods; Corn silage; Crude protein; Neutral detergent fiber; Stylosanthes.
Ano: 2018 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000703551
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Performance and egg quality of laying hens fed with dietary levels of digestible lysine and threonine Arq. Bras. Med. Vet. Zootec.
Figueiredo,G.O; Bertechini,A.G; Fassani,E.J; Rodrigues,P.B.; Brito,J.Á.G; Castro,S.F.
The present study was developed using 864 Hy-Line W36 laying hens (42 to 58 weeks of age) with a randomized experimental design in a 4x3 factorial arrangement, with five replicates and 12 birds per experimental unit and 4 evaluation periods of 28 days each. The digestible lysine levels studied were 0.675%, 0.743%, 0.811% and 0.879%, and the digestible threonine levels were 0.542%, 0.596% and 0.650%. The performance and egg quality was evaluated. There were no significant effects on the egg production, specific gravity, albumen and yolk percentage and total solids in albumen and yolk for birds submitted to the different dietary digestible lysine and threonine levels. There was significant interaction between these amino acids on the egg shell percentage and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Amino acids; Laying hens; Crude protein; Haugh unit.
Ano: 2012 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000300028
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Biochemical composition of the hoof capsule of buffaloes and its influence on hoof quality Arq. Bras. Med. Vet. Zootec.
Assis,B.M.; Vulcani,V.A.S.; Silva,L.A.F.; Dias,M.; Pancotti,A.; Lima,C.R.O.; Rabelo,R.E..
ABSTRACT The purpose of this study was to establish the biochemical parameters of the abaxial wall, dorsal wall and sole of the hoof of the medial thoracic, lateral, and medial pelvic digits of buffalos. The hoof samples were subjected to destructive biochemical analyses to identify the dry material (DM), mineral matter (MM), organic matter (OM), crude protein (CP) and ether extract (EE) contents. Sulfur (S), calcium (Ca), potassium (K), phosphorus (P), zinc (Zn) and copper (Cu) levels were determined based on nondestructive biochemical analyses. The parameters of dry material, mineral matter, organic matter, crude protein and ether extract of hoof capsule of the digits of buffalos can be determined by means of both destructive and nondestructive...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Buffaloes; Keratinized epidermis; Minerals; Crude protein.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000100057
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Nutritional Strategies to Improve Nitrogen use Efficiency by Grazing Dairy Cows Chilean J. Agric. Res.
Keim,Juan Pablo; Anrique,René.
Grazing dairy cows are characterized by converting a low proportion of dietary N into milk N. This low N use efficiency (NUE) is mainly due to an excessive supply of crude protein (CP) of pasture with regard to animal requirements. Excess N in the diet has negative effects for the animal; it alters the organoleptic characteristics of milk and pollutes the environment through N excretions. The aim of this review was to analyze the available information on nutritional strategies to improve NUE by grazing dairy cows, such as diluting the dietary N through supplementation, synchronizing ruminal carbohydrate (CHO), and N fermentation rates, and using pastures with a high water soluble carbohydrates (WSC) content. There is a beneficial effect of carbohydrate...
Tipo: Journal article Palavras-chave: Concentrate supplementation; Ruminal synchrony; High sugar ryegrass; Crude protein; Milk production.
Ano: 2011 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392011000400019
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Forage potential of black oat Iapar 61 alone or in association with birdsfoot trefoil Ciencia e Investigación Agraria
Ducati,Camila; Neres,Marcela A; Castagnara,Deise D; Oliveira,Paulo S. R; Weirich,Daiane; da Silva,Gustavo M; Sunahara,Samantha M. M.
C. Ducati, M.A. Neres, D.D. Castagnara, P.S.R. Oliveira, D. Weirich, G.M. Silva, and S.M.M. Sunahara. 2015. Forage potential of oat Iapar 61 alone or in association with birdsfoot trefoil. Cien. Inv. Agr. 42(3): 341-351. The objective of this study was to evaluate the structural characteristics, dry matter production, residual mass, chemical composition and in vitro dry matter digestibility of Iapar 61 black oat (Avena strigosa cv Iapar 61) pasture, both in isolation and in association with birdsfoot trefoil (Lotus corniculatus L., cv. St. Gabriel), under different forms of management in three growth cycles. A randomized block design was used with split plots in time with four treatments: conventional tillage oats, oat tillage, oats associated with...
Tipo: Journal article Palavras-chave: Apical meristem; Crude protein; Dry matter production; Winter legume.
Ano: 2015 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202015000300003
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Nutrients in the cassava (Manihot esculenta Crantz) leaf meal at three ages of the plant Ciênc. Tecnol. Aliment.
Wobeto,Carmen; Corrêa,Angelita Duarte; Abreu,Celeste Maria Pato de; Santos,Custódio Donizete dos; Abreu,José Renato de.
The high number of cassava cultivars adapted to many different regions provides a wide variation in the chemical composition of cassava leaves meal (CLM). Therefore, the contents of some nutrients in CLM from five cultivars at three ages of the plant were investigated in order to select the cultivars and ages with superior levels of these nutrients. When the plants were 12 months old, the highest levels of crude protein (CP), beta-carotene, iron, magnesium, phosphorus and sulfur were observed. The IAC 289-70 cv. showed the highest levels of magnesium, as well as considerable contents of CP, beta-carotene, iron, zinc and sulfur, which did not differ statistically from the cultivars showing the highest levels of these nutrients.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cassava leaves; Cultivar; Minerals; Vitamin; Crude protein.
Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612006000400024
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Leaf tissues proportion and chemical composition of Axonopus jesuiticus x A. scoparius as a function of pig slurry application Ciência Rural
Lajús,Cristiano Reschke; Miranda,Mário; Basso,Simone Meredith Scheffer; Carneiro,Cercí Maria; Escosteguy,Pedro Alexandre Varella.
This study aimed to evaluate the chemical and anatomical attributes of leaves of giant missionary grass to application of 0, 62, 124, 186, 248 and 310m³ ha-1 of pig slurry. At 83 days after the last application of fertilizer, the leaf blades were collected, fixed in FAA 70%, sectioned, stained, photographed and digitalized. The transversal section of leaf blades were evaluated for proportion of epidermis, lignified vascular tissue + sclerenchyma, non-lignified vascular tissue and parenchyma with an image-processing system calibrated to 1mm pixel-1. Leaf samples were analyzed for crude protein, acid detergent fiber, neutral detergent fiber and hemicellulose content by near infrared reflectance spectroscopy. The pig slurry application up to 310m³ ha-1...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crude protein; Epidermis; Fiber; Lignified vascular tissue + sclerenchyma; Parenchyma.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014000200013
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Forage yield and nutritive value of Elephant grass, Italian ryegrass and spontaneous growing species mixed with forage peanut or red clover Ciência Rural
Diehl,Michelle Schalemberg; Olivo,Clair Jorge; Agnolin,Carlos Alberto; Junior,Ricardo Lima de Azevedo; Bratz,Vinícius Felipe; Santos,Juliano Costa dos.
The objective of this research was to evaluate of three grazing systems (GS) with elephant grass (EG), Italian ryegrass (IR) + spontaneous growing species (SGS); EG + IR + SGS + forage peanut (FP); and EG + IR + SGS + red clover (RC), during the winter and summer periods in rotational grazing with dairy cattle. Experimental design was completely randomized with three treatments, two replicates with repeated measures. Lactating Holstein cows receiving 1% BW-daily feed supplement with concentrate were used in the evaluation. Eight grazing cycles were performed during the experimental period. The values of pre forage mass and stocking rate were 2.52, 2.60 and 2.99 t ha-1 and 2.64, 2.77 and 3.14 animal unit ha-1, respectively for GS. Samples of forage were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Arachis pintoi; Digestibility; Crude protein; Neutral detergent fiber; Pennisetum purpureum; Trifolium pratense..
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782014001001845
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Life cycle assessment as a tool to evaluate the impact of reducing crude protein in pig diets Ciência Rural
Monteiro,Alessandra Nardina Trícia Rigo; Dourmad,Jean-Yves; Pozza,Paulo Cesar.
ABSTRACT: Environmental impacts of livestock systems, especially pig production, have come under increasing debate in recent years. The challenge is in meeting the growing demand for food at an affordable cost, without compromising environmental integrity. Previous studies have shown that feed production is responsible for the majority of CO2-eq. emission resulting from pig farming systems. This seems to indicate that feed strategies could be an effective tool to achieve the sustainability of the pork chain. Therefore, dietary crude protein reduction, through the addition of industrial amino acids, lessens the nitrogen excretion by pigs and, consequently, could mitigate the effects on the environment of pig production. In this sense, to effectively...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crude protein; Environmental impact; Global warming potential; Greenhouse gases; Nutrient.
Ano: 2017 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000600653
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Influence of harvest time and cultivation sites on the productivity and quality of sweet potato Horticultura Brasileira
Azevedo,Alcinei M; Andrade Júnior,Valter C; Viana,Daniel JS; Elsayed,Ahmed YAM; Pedrosa,Carlos E; Neiva,Irã P; Figueiredo,José Altair.
Sweet potato is one of the most cultivated tuberous roots in tropical and subtropical regions permitting several ways of use. Despite its potential use, sweet potato has been little studied. We evaluated the performance of sweet potato roots, forage productivity and its silage at different harvesting times and cultivation environments and we identified the most superior clones under different soil and climatic conditions. Six sweet potato clones (BD-38, BD-45, BD-25, BD-31TO, BD-15 and BD-08) belonging to germplasm bank of UFVJM in addition to two standard cultivars Brazlândia Rosada and Princesa were grown in two cultivation sites (JK campus and Forquilha farm). The trial was conducted in split plots in randomized block design with three harvest times...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ipomoea batatas; Harvest time; Quality traits; Crude protein.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-05362014000100021
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