|
|
|
|
|
| Souza,Evaristo Jorge Oliveira de; Valadares Filho,Sebastião de Campos; Guim,Adriana; Valadares,Rilene Ferreira Diniz; Marcondes,Marcos Inácio; Véras,Antonia Sherlânea Chaves; Amaral,Paloma de Melo; Santos,Tathyane Ramalho. |
| The objective of this study was to determine the energy nutritional requirements for females of Nellore, Nellore × Angus and Nellore × Simmental fed on two levels of concentrate. Sixty heifers from three genetic groups were used: 20 Nellore, 20 Nellore × Angus and 20 Nellore × Simmental. Twelve belonged to the reference group (four of each genetic group) and were slaughtered at the beginning of the experiment. Another 12 heifers (four of each genetic group) were fed on the maintenance level and 36 heifers (12 animals of each genetic group) were kept in feeding system ad libitum with 30 (six in each group) or 50% (six of each group) dry matter concentrate. Animals were randomly assigned to six treatments in a 3 × 2 factorial arrangement (three genetic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crossbred heifers; Maintenance; Metabolizable energy; Net energy. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000300039 |
| |
|
|
| Souza,Evaristo Jorge Oliveira de; Valadares Filho,Sebastião Campos; Torres,Thaysa Rodrigues; Silva,Daniel Cézar da; Silva,José Ricardo Coelho da. |
| ABSTRACT The aim of this study was to predict the body and carcase composition of Nellore heifers and their crosses with Angus and Simmental bulls. Sixty heifers from three genetic groups were used, 20 Nellore, 20 Nellore x Angus and 20 Nellore x Simmental; of these, 12 (four from each genetic group) were slaughtered at the beginning of the experiment (reference group). The heifers were randomly divided into nine treatments (completely randomised design), in a 3 x 3 factorial scheme of three genetic groups and three diets (30 and 50% of the dry matter of the concentrate feed, in addition to the maintenance group) in feedlot. Twelve heifers (four from each genetic group) were fed at maintenance level (1.1% of body weight in dry matter) with a diet... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Physical constitution; Chemical constitution; Fat; Muscle. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902019000100148 |
| |
|
|
| Souza,Evaristo Jorge Oliveira de; Valadares Filho,Sebastião de Campos; Guim,Adriana; Valadares,Rilene Ferreira Diniz; Marcondes,Marcos Inácio; Ferreira,Marcelo de Andrade; Prados,Laura Franco; Benedeti,Pedro del Bianco. |
| This study aimed to determine the protein requirements for females of Nellore, F1 Nellore × Angus and F1 Nellore × Simmental fed on two concentrate levels (30 and 50%). Sixty heifers from three genetic groups with 18 months of age were used: 20 Nellore, 20 Nellore × Angus and 20 Nellore × Simmental. Twelve heifers of the reference group (four of each genetic group) were slaughtered at the beginning of the experiment. Another 12 heifers (four of each genetic group) were fed on the level of maintenance and 36 heifers (12 animals of each genetic group) were kept in power system ad libitum with 30% (six of each group) or 50% (six of each group) dietary dry matter in concentrate. Heifers were randomly assigned to six treatments in a 3 × 2 factorial arrangement... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Crossbred; Heifers; Metabolizable protein and net protein. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000300040 |
| |
|
|
|
