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| Gionbelli,Mateus Pies; Valadares Filho,Sebastião de Campos; Detmann,Edenio; Paulino,Pedro Veiga Rodrigues; Valadares,Rilene Ferreira Diniz; Santos,Tathyane Ramalho; Silva,Luiz Fernando Costa e; Magalhães,Felipe Antunes. |
| The objective of this study was to evaluate nutrients and dry matter intake, average daily gain, feed efficiency and digestibility of diets, microbial efficiency, cold carcass yield and basic cuts yields of young Nellore heifers receiving two concentrate levels. Nineteen heifers with initial average weight of 165.6±29.8 kg were used. Three animals were used in a trial to determine the digestibility and microbial efficiency of the two levels of concentrate (225 and 450 g/kgDM) and a treatment with a restricted intake maintenance level. The remaining 16 heifers were confined for 168 days for evaluation of performance and intake, divided into two levels of concentrate. Every 42 days, four animals, two from each concentrate level, were slaughtered to determine... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Beef heifers; Concentrate level; Feedlot; Growth; Maturity; Weight gain. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000500023 |
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| Costa e Silva,Luiz Fernando; Marcondes,Marcos Inácio; Valadares Filho,Sebastião de Campos; Ribeiro,André Mauric Frossard; Prados,Laura Franco; Nascimento,Fernando Barros; Gionbelli,Mateus Pies; Santos,Ronald Matos dos. |
| This study was conducted to develop equations to predict chemical composition of head, limbs, hide and blood in cattle. A database containing 335 animals from 10 trials, with 221 Nellore, 38 Nellore-Simmental and 76 Nellore-Angus (96 steers, 118 heifers and 121 bulls) animals was used. Models were constructed to estimate water, ether extract (EE), crude protein (CP), ash and macrominerals (calcium, phosphorus, magnesium, sodium and potassium) in the non-carcass parts of cattle. A stepwise procedure was conducted to determine the most significant variables within each model. Subsequently, a random coefficient model was used to construct the equation using studies as random effect, and sex and breed as fixed effects. The visceral fat was the most important... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Blood; Carcass; Ether extract; Hide; Organs and viscera; Protein. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000800015 |
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| Magalhães,Felipe Antunes; Valadares Filho,Sebastião de Campos; Menezes,Gustavo Chamon de Castro; Gionbelli,Mateus Pies; Zanetti,Diego; Machado,Marcelo Grossi; Pina,Douglas dos Santos; Komura,Koiti. |
| The objective of this study was to evaluate low and high Brix diets, treated or not with 5 g of calcium oxide per kg of natural matter, and corn silage on intake, digestibility and performance of beef cattle. Forty cattle with initial body weight (BW) of 350 kg were used: five composed the control group, 30 were distributed into random blocks (control) and the other five were distributed in a 5 × 5 incomplete Latin square, with the objective of determining digestibility. The 30 animals evaluated for performance were slaughtered and empty body weight (EPW), carcass dressing and meat cuts were determined. The diet with corn silage (CS) presented the best intake of the other ingredients and the best weight gain, except for neutral detergent fiber intake in... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Digestibility; Ethanol; Fermentation; Treatment. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000600026 |
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