7 documents found, page 1 of 1
Net requirements of energy, protein and macrominerals for weight gain of grazin...
Rocha,Anilza Andréia da; Paulino,Mário Fonseca; Fernandes,Henrique Jorge; Barros,Lívia Vieira de; Lopes,Sidnei Antonio; Galon,LeandroThe objective of this experiment was to estimate the requirements of energy, protein and macrominerals of grazing crossbreds calves, in Brachiaria decumbens Stapf pasture, castrated at different ages, with and without supplementation. Forty-seven young calves at initial age of 120±30.1 days and 115.3±1.97 kg of live weight were used. To estimate net energy requirements for weight gain, a regression equation bet...
Performance and nutritional evaluation of beef cattle raised on pasture, castra...
Rocha,Anilza Andréia da; Paulino,Mário Fonseca; Fernandes,Henrique Jorge; Barros,Lívia Vieira de; Lopes,Sidnei Antonio; Galon,LeandroThe objective of this study was to evaluate performance and nutritional traits of beef cattle raised on pastures, castrated at different ages, with and without supplementation. Forty-four crossbred young bulls with predominance of Zebu breed at initial average age of 120±30 days were used in the experiment. Animals were distributed in a completely randomized design in a factorial arrangement with four ages of c...
Levels of ground corn supplied to beef heifers at pasture during the rainy seas...
Figueiredo,Darcilene Maria de; Paulino,Mário Fonseca; Sales,Maykel Frankiln Lima; Valadares Filho,Sebastião de Campos; Detmann,EdenioThe objective was to evaluate the effect of four levels of ground corn supply on nutritional parameters, microbial synthesis efficiency and growing performance of beef heifers, at the rainy season. For such, 28 crossbred yearling heifers, with initial age of 16-17 months and initial weight of 255 ± 31.0 kg were distributed into five paddoks of B. decumbens, of 2.0 ha each, with average potentially digestible DM...
Levels of multiple supplements or nitrogen salt for beef heifers in pasture dur...
Valente,Ériton Egidio Lisboa; Paulino,Mário Fonseca; Detmann,Edenio; Campos Valadares Filho,Sebastião de; Barros,Lívia Vieira de; Acedo,Tiago SabellaThe study assessed performance, microbial protein synthesis, intake and digestibility of nutrients by beef heifers receiving levels of multiple supplements or nitrogen salt, in a self-controlled intake, on pasture, during the dry season. Thirty-five beef heifers, from 6 to 9 months of age and average initial body weight of 203.4 + 4.5 kg, were used. Study factors were: control - mineral mixture; nitrogen salt -...
Exigências proteicas de bovinos de corte suplementados a pasto
Sales,Maykel Franklin Lima; Paulino,Mário Fonseca; Valadares Filho,Sebastião de Campos; Chizzotti,Mario Luiz; Barros,Lívia Vieira deObjetivou-se determinar as exigências proteicas de bovinos anelorados, em pastagem com Brachiaria decumbens suplementada com concentrado. Foram utilizados 28 novilhos zebuínos não-castrados com média de 7 meses de idade e 180 kg. Foram abatidos oitos animais-referência para determinação da composição corporal inicial. Os 20 animais restantes foram divididos em cinco lotes de quatro animais, em delineamento inte...
Energy sources and supplementation levels for beef heifers raised during the dr...
Couto,Victor Rezende Moreira; Paulino,Mário Fonseca; Detmann,Edenio; Valadares Filho,Sebastião de Campos; Sales,Maykel Franklin LimaThis experiment aimed at evaluating the productive performance, intake and the apparent digestibility in the raising of beef heifers on Brachiaria decumbens Stapf. pastures under supplementation with starch or fibrous energy sources during the dry season. It was used 40 newly weaned heifers (20 Nellore and 20 crossbreed), at 8.5 months of age and 197.9 ± 3.74 kg initial weight. Two supplements were formulated: ...
Níveis de uréia em suplementos múltiplos para terminação de novilhos em pastage...
Sales,Maykel Franklin Lima; Paulino,Mário Fonseca; Valadares Filho,Sebastião de Campos; Porto,Marlos Oliveira; Moraes,Eduardo Henrique Bevitori Kling deAvaliaram-se os efeitos de suplementos múltiplos com diferentes níveis de uréia sobre o desempenho produtivo e os parâmetros nutricionais de bovinos em fase de terminação mantidos em pastagem diferida de capim-braquiária (Brachiaria brizantha cv. Marandu) no período de transição águas-seca. A disponibilidade estimada de matéria seca das pastagens variou de 16.360 a 9.358 kg/ha. Para avaliação do desempenho prod...