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| Registros recuperados: 99 | |
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| Galeano-Vasco,Luis Fernando; Cerón-Muñoz,Mario Fernando; Narváez-Solarte,William. |
| In this study, the Von Bertalanffy, Richards, Gompertz, Brody, and Logistics non-linear mixed regression models were compared for their ability to estimate the growth curve in commercial laying hens. Data were obtained from 100 Lohmann LSL layers. The animals were identified and then weighed weekly from day 20 after hatch until they were 553 days of age. All the nonlinear models used were transformed into mixed models by the inclusion of random parameters. Accuracy of the models was determined by the Akaike and Bayesian information criteria (AIC and BIC, respectively), and the correlation values. According to AIC, BIC, and correlation values, the best fit for modeling the growth curve of the birds was obtained with Gompertz, followed by Richards, and then... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chickens; Mathematical models; Poultry; Regression analysis; Weight gain. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014001100573 |
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| Farrapo,Samily de Paulo; Alves,Marcio Gleice Mateus; Brito,Jéssica de Carvalho; Batista,Ana Sancha Malveira; Freitas,Ednardo Rodrigues; Nascimento,Germano Augusto Jerônimo do. |
| Abstract: The objective of this work was to evaluate the effect of the inclusion of vegetable and mixed glycerin in the diet of broiler quail (Coturnix coturnix coturnix) on animal performance, yield of carcass and organs, and physical and sensory characteristics of the meat. A total of 432 quails aged 1-42 days were used in a completely randomized design with a 4×2+1 factorial arrangement (5, 10, 15, and 20% inclusion of vegetable or mixed glycerin, besides one treatment without glycerin) with 4 replicates of 12 birds each. Feed intake, weight gain, feed conversion, yield (carcass, breast, thigh+drumstick, heart, liver, gizzard, and abdominal fat), and physical and sensory characteristics of the meat. The diet containing mixed glycerin resulted in higher... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coturnix coturnix coturnix; Carcass yield; Meat quality; Weight gain. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2017000900768 |
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| Almeida,Sabrina Esteves Matos; Almeida,Erik Amazonas de; Terra,Gustavo; Neves,Jairo Pereira; Gonçalves,Paulo Bayard Dias; Weimer,Tania de Azevedo. |
| Three short tandem repeats (STRs), BMS1074, BM1500, IDVGA-51, and three single nucleotide polymorphisms (SNPs), LEPSau3AI (A/B), LEPSau3AI (+/-) and LEPKpn2I linked to the LEP gene were investigated to verify associations with productive performance in postpartum cows of two beef cattle breeds, Aberdeen Angus (AA, n=98) and Charolais (C, n=83). After polymerase chain reaction, STRs were analyzed by vertical electrophoresis and SNPs in agarose gel after endonucleases cleavage. In AA herd 79% of BMS1074*151 carriers had a lower average daily weight gain (ADG) when compared with the population mean daily weight gain (103g), while 62% of BMS1074*151 non-carriers presented a higher ADG (P<0.01); AA animals with at least one BMS1074*151 allele showed a ADG... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Leptin; STRs; SNPs; Beef cattle; Weight gain; Post-partum. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782007000100033 |
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| Santos, Alexandre Leseur; UEM; Scapinello, Cláudio; UEM; Martins, Elias Nunes; UEM; Granzotto, Fernanda; UEM; Paula, Meybi Carneiro; UEM; Hidalgo, André Marubayashi; UEM. |
| O objetivo do presente trabalho foi avaliar se a seleção para conversão alimentar (CA) e ganho de peso (GP), com base no desempenho individual e ou coletivo dos láparos, pode produzir ganhos genéticos em progênies criadas coletivamente, e animais submetidos à avaliação no período de 50 a 70 dias de idade, utilizando inferência Bayesiana. Realizaram-se seis análises bicaráter. No teste de desempenho foi observado que as características ganho de peso e conversão alimentar em ambos os ambientes tiveram valores para herdabilidade que variam de 0,42 a 0,60. Tanto a correlação genética 0,44 a 0,68 (GP) e 0,23 a 0,56 (CA) como a fenotípica 0,30 (GP) e 0,17 (CA) foram positivas para a mesma característica quando avaliada nos dois ambientes, coletivo ou individual,... |
| Tipo: Pesquisa de Campo; Metodologia |
Palavras-chave: 5.04.02.00-5; Herdabilidade; Ganho de peso; Conversão alimentar; Correlação genética; Inferência bayesiana GENÉTICA E MELHORAMENTO DOS ANIMAIS DOMÉSTICOS Heritability; Weight gain; Feed conversion; Genetic correlation; Bayesian inference. |
| Ano: 2009 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/6262 |
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| Bonilha,Eduardo Figueiredo Martins; Branco,Renata Helena; Bonilha,Sarah Figueiredo Martins; Araújo,Fabiana Lana de; Cyrillo,Joslaine Noely dos Santos Gonçalves; Magnani,Elaine. |
| Empty body and carcass chemical composition were determined in 67 Nellore bulls from Selection Nellore (NeS) and Control Nellore (NeC) herds of an animal breeding program for growth, slaughtered at 570 days of average age, after 100 days of feedlot. Selection Nellore animals had, respectively, 360 and 430 kg of initial and slaughter body weight, and NeC animals had 318 and 373 kg for the same traits. Animals were slaughtered and empty body composition was determined by chemical analysis of the components blood, hide, head and feet, viscera and carcass. Tissue deposition rates and gain chemical composition were also determined based on gains estimated by comparative slaughter technique. Significant differences were detected between NeS and NeC animals for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bos indicus; Efficiency; Fat; Protein; Selection; Weight gain. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000400175 |
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| Aguiar,A.S.; Da-Silva,V.A.; Boaventura,G.T.. |
| Our objective was to compare the use of calories from ethanol by well-nourished and malnourished rats in terms of body weight. Female Wistar rats weighing 170-180 g at the beginning of the study were used. The animals were divided into two groups (N = 12 each): group W received water ad libitum and group E an ethanol solution ad libitum as the only source of liquid throughout the experiment. The concentration of ethanol was increased weekly from 0 to 5, 10, 20 and 40% (v/v). In the well-nourished phase (A), all rats received food ad libitum (AW and AE). Ethanol treatment (AE) was then interrupted and water was offered to both groups. After 2 weeks both AW and AE rats were submitted to food restriction (50% of group AW food consumption), thus initiating the... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Ethanol; Weight gain; Malnutrition; Rats; Toxicity. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2004000600009 |
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| Farias,Nadja Naiara Pereira; Freitas,Ednardo Rodrigues; Xavier,Regina Patrícia de Souza; Braz,Nádia de Melo; Souza,Davyd Herik; Tavares,Thais Cruz Lopes. |
| ABSTRACT The objective of this study was to evaluate the oxidative stability of cashew nut meal (CNM) at 180 days of storage and the effects of its use in the feed of meat quails. A total of 280 animals at seven days of age, of both sexes, were distributed in a completely randomized design with five treatments, in a 2 × 2 + 1 factorial arrangement, and seven replicates of eight birds each. The treatments were a control diet without CNM and diets containing levels of 12.5 or 25% of new CNM (NCNM) or stored for 180 days (SCNM). The lipid oxidation of the brans was evaluated by determining the acidity index and peroxide index. The parameters evaluated were the quail performance, metabolizable coefficients and energy of diets, carcass characteristics, relative... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carcass characteristics; Feed intake; Feed conversion; Metabolizable energy; Quail; Weight gain. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982017000700576 |
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| Sichieri,R.; Silva,C.V.C.; Moura,A.S.. |
| Short stature, a marker for undernutrition early in life, has been associated with obesity in Brazilian women, but not in men. We tested the hypothesis that weight gain during the reproductive years could explain this gender difference. A national two-stage household survey of mothers with one or more children under five years of age was conducted in Brazil in 1996. The subjects were women aged 20 to 45 years (N = 2297), with last delivery seven months or more prior to the interview. The regions of the country were divided into rural, North/Northeast (urban underdeveloped) and South/Southeast/Midwest (urban developed). The dependent variables were current body mass index (BMI) measured, BMI prior to childbearing (reported), and BMI change. Socioeconomic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Parity; Body mass index; Weight gain; Pregnancy; Overweight; Stature. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003001000007 |
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| Almeida,Gledson Luiz Pontes de; Pandorfi,Héliton; Baptista,Fátima; Guiselini,Cristiane; Ferreira,Marcelo de Andrade; Cruz,Vasco Fitas. |
| ABSTRACT: This research aimed to assess Girolando calves’ concentrate intake and performance when placed in shelters with distinct roofing materials and programs of supplementary lighting during the milk-feeding stage. In order to so, we used a completely randomized design with a 3×3 factorial arrangement, with three replications. Females Girolando calves (n=27) were assigned in individual shelters at random with 3 different roofing materials (fiber cement tile, recycled tile and thatched roofs) and subjected to three lighting programs (12, 16 and 20 hours). No interaction was observed between roofing material and lighting programs, whilst no significant effect (P>0.05) was observed among the roofing materials. The supplementary lighting, by providing... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal performance; Dairy cattle; Light duration; Weight gain. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000900651 |
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| Cardoso, Elves de Souza; Santana Junior, Hermógenes Almeida de; Oliveira, Aracele Prates de; Ferreira, Antônio Hosmylton Carvalho de; Oliveira, Zeliana Fernandes de; Freitas, Tiago Brandão. |
| The objective was to evaluate the correlation between performance and feeding behavior of feedlot castrated Santa Inês lambs fed without roughage diet, weighing 20 ± 1,8 kg and four months of age (± 0,34). A completely randomized design was adopted. Correlations were obtained by Pearson’s linear correlation analysis and the t test, and processed on SAS software (version 9.2). The variables number of rumination chews per cud, number of cuds ruminated per day, speed of each chew, and number of rumination cuds per day were positively correlated with the variation in body weight (p < 0.05). For number of cuds ruminated per day, a positive correlation was found with the variations in body weight. Initial and final body weights were positively correlated with... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: 5.00.00.00-4; 5.04.00.00-2; 5.04.03.00-1 concentrate; Intake; Weight gain; Sheep.. |
| Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/33453 |
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| Moreira,Werney da Silva; Miotto,Fabrícia Rocha Chaves; Restle,João; Missio,Regis Luis; Neiva,José Neuman Miranda; Moreira,Roger Vieira. |
| ABSTRACT - The objective of this study was to find the best level of inclusion of crude glycerin (0, 60, 120, and 240 g kg−1 of dry matter of diet) in substitution of pearl millet in a feedlot diet. Twenty-eight Nellore young bulls with mean age of 18 months and average weight of 357±23.56 kg were used. The animals were distributed in a completely randomized design with four treatments and seven replications. The intakes of dry matter, crude protein, neutral detergent fiber, and total digestible nutrients were similar among the dietary levels of crude glycerin. The ether extract intake decreased with increase in the levels of crude glycerol in the diets. Apparent digestibility of dry matter, crude protein, and extract ether was similar among the dietary... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: By-products; Digestibility; Finishing; Glycerol; Intake; Weight gain. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000100032 |
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| Maestá, Sirlei Aparecida; UNESP- Campus experimental de Dracena; Siqueira, Edson Ramos de; Faculdade de Medicina Veterinária e Zootecnia - UNESP - Campus de Botucatu; Fernandes, Simone; Faculdade de Medicina Veterinária e Zootecnia - UNESP - Campus de Botucatu; Emediato, Rodrigo Martins de; Faculdade de Zootecnia e Engenharia de Alimentos, USP, Pirassununga; Oliveira, Aline Aparecida de; Faculdade de Medicina Veterinária e Zootecnia - UNESP - Campus de Botucatu; Stradiotto, Monalissa de Melo; Faculdade de Medicina Veterinária e Zootecnia. |
| Foram utilizadas 26 cordeiras Bergamácia desmamadas com 60 dias de idade e distribuídas em dois grupos: Aleitamento artificial: dez cordeiras foram separadas de suas mães 48h após o parto e amamentadas com leite de vaca; Aleitamento controlado: 16 cordeiras foram mantidas com suas mães na pastagem durante o dia e separadas à noite e retornando após a ordenha matinal. Após a desmama, ambos os grupos foram mantidos confinados até atingirem o peso médio de 38,6 kg, depois foram divididas em dois tratamentos: Recria em pasto: cinco cordeiras do aleitamento artificial + oito cordeiras de aleitamento controlado; Recria confinada: cinco cordeiras aleitamento artificial + oito cordeiras aleitamento controlado. O delineamento experimental foi um fatorial 2 x 2,... |
| Tipo: Pesquisa de Campo |
Palavras-chave: 5.04.05.00-4 análise econômica; Ganho de peso; Produção de leite; Ovelhas Produção animal economic analysis; Weight gain; Milk production; Ewe-lambs. |
| Ano: 2010 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/7359 |
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| Oliveira, Emanuela Lima de; Universidade Federal Rural de Pernambuco; Ludke, Maria do Carmo Mohaupt Marques; Universidade Federal Rural de Pernambuco; Ludke, Jorge Vitor; Empresa Brasileira de Pesquisa Agropecuária - Embrapa Suínos e Aves; Bertol, Marisa Teresinha; Empresa Brasileira de Pesquisa Agropecuária - Embrapa Suínos e Aves; Guidoni, Antônio Lourenço; Empresa Brasileira de Pesquisa Agropecuária - Embrapa Suínos e Aves; Salvagni, Gizelli; Universidade do Estado de Santa Catarina. |
| O experimento foi desenvolvido com os objetivos de avaliar os efeitos da proteína concentrada de soja nas dietas de leitões no desempenho e viabilidade econômica durante a fase de creche. Foram avaliados os seguintes tratamentos em dietas pré-inicial (25 a 37 dias de idade), inicial I (37 a 50 dias de idade) e inicial II (50 a 64 dias de idade): FS a base de milho e farelo de soja Hypro; PCS-60% proteína concentrada de soja; PCSH-2h com PCS hidrolisada com enzima protease por um período de 2 horas; PCSH-8h com PCS hidrolisada com enzima protease por um período de 8 horas. No período entre 25-50 dias foi observada diferença significativa para a receita diária (p = 5,1%) e para a margem bruta (p = 2,1%). Os tratamentos PCS-60%, PCSH-2h e PCSH-8h apresentaram... |
| Tipo: Pesquisa de campo; análise laboratorial |
Palavras-chave: 5.04.03.00-1 alimento proteico; Análise econômica; Ganho de peso; Nutrição; Suinocultura proteic feedstuff; Economic analysis; Weight gain; Nutrition; Swine production. |
| Ano: 2012 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/11223 |
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| Lelis,Guilherme Rodrigues; Albino,Luiz Fernando Teixeira; Calderano,Arele Arlindo; Tavernari,Fernando de Castro; Rostagno,Horacio Santiago; Campos,Anastácia Maria de Araújo; Araújo,Wagner Azis Garcia de; Ribeiro Junior,Valdir. |
| The assay was carried out to determine the effect of phytase supplementation on performance of broilers from 1 to 21 and 1 to 40 days of age. Twelve hundred and fifty male broilers (Ross) were distributed in a randomized experimental design, with five treatments, 10 repetitions and 25 birds per experimental unit. The treatments consisted of evaluating the phytase supplementation in diets with reductions in nutritional levels, compared with the positive control. The nutrient contents in negative controls one and two were reduced progressively and these diets were supplemented with phytase levels of 250 and 500 ftu/kg of the diet, respectively. Two diets were formulated: pre-starter/starter, 1-21 days, and growth/finishing, from 21 to 40 days). In both... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diet; Productive efficiency index; Weight gain. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400014 |
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| Oliveira,JE; Albino,LFT; Rostagno,HS; Páez,LE; Carvalho,DCO. |
| Three experiments were conducted to determine the nutritional requirements of potassium (K) for male Ross broiler chickens, from 8 to 21, 22 to 42 and 43 to 53 days of age. The following parameters were evaluated: body weight gain (BWG), feed intake (FI) and feed conversion ratio (FCR). In each experiment, a completely randomized experimental design was used, with six treatments (K levels), and six, eight and eight numbers of replicates, and eight, five and four birds per pen, respectively. The experimental diets were basal diets deficient in K but supplemented with K carbonate to result in levels of 0.30, 0.44, 0.58, 0.72, 0.86 and 1.00% K. Estimated requirements for BWG were 0.628, 0.714 and 0.798% K, for the periods 8-21, 22-42 and 43-53 d, respectively. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Broiler chickens; Ion; Mineral; Potassium; Requirement; Weight gain. |
| Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000100006 |
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| Registros recuperados: 99 | |
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