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| Farias, Gustavo Duarte; Cerdótes, Liliane; Restle, João; Pascoal, Leonir Luiz; Costa, Pablo Tavares; Ferreira, Otoniel Geter Lauz; Vaz, Ricardo Zambarda. |
| This study was developed to evaluate productive efficiency during the lactation period of cows with predominant Nellore genetic composition based on their body size. Cows were divided into the following categories: light (≤ 316 kg), moderate (≥ 317 and ≤ 400 kg), or heavy (≥ 401 kg). Body weight change and total gain from birth to 210 days of age of calves born from heavy cows (0.155±0.03 and 111.6±5.1 kg) were higher than those of calves born from light (0.064±0.03 and 91.0±4.3 kg) and moderate (0.144±0.03 and 97.7±4.0 kg) cows. Calf production index differed (p < 0.05) with the herd of heavy cows (93.5±3.2 kg), producing 57.4 and 19.7% more kilograms of calf than light (59.4±2.7 kg) and moderate (78.1±2.4 kg) cows, respectively. Heavy Nellore cows... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Weaning; Calf production; Lactation; Production per area.. |
| Ano: 2018 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/42532 |
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| Maysonnave, Greicy Sofia; Mello, Renius de Oliveira; Vaz, Fabiano Nunes; Ávila, Mozer Manetti de; Pascoal, Leonir Luiz; Rodrigues, Ana Clara Trindade. |
| The aim was to evaluate the proximate food composition, cholesterol content, coloring and economic aspects of the main nutrients present in by-products from the slaughter of cattle. The samples were collected from 14 organs, with four repetitions each, of which we conducted the analyses of moisture, crude protein, mineral matter, cholesterol and fat content. The color was measured through the coordinates L*, a*, b*. The differences between the groups of red and white viscera were evaluated by contrasts analysis. Subsequently, the data were subjected to multivariate analysis of variance, which was complemented by the principal component technique. In the analysis of contrast between red and white viscera, the results showed that the components with the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Income; Meat chain; Productive chain; Slaughterhouses.. |
| Ano: 2020 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/46545 |
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