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| Starling,Josiane Maria Cardoso; Silva,Roberto Gomes da; Cerón-Muñoz,Mario; Barbosa,Geraldo Sérgio Senra Carneiro; Costa,Mateus José Rodrigues Paranhos da. |
| Investigaram-se a temperatura retal, a freqüência respiratória e a taxa de evaporação total de ovinos Corriedale sob três temperaturas ambientes, visando uma melhor compreensão dos mecanismos de termorregulação desses animais. Inicialmente, 21 animais adultos foram alojados em câmara climática à temperatura de 45ºC, e pressão parcial de vapor (PV) variável, registrando-se a freqüência respiratória (FR) e a temperatura retal (TR). Baseando-se na FR e TR, foram selecionados 10 animais, cinco com os valores mais baixos, assumindo-os como mais adaptados ao calor (grupo 1) e cinco com valores mais altos, assumindo-os como menos adaptados (grupo 2). Os animais selecionados foram mantidos em câmara climática, onde mediram-se novamente TR, FR e taxa de evaporacão... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Estresse por calor; Ovinos; Termólise evaporativa. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982002000800022 |
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| Figueiredo,Mércia Regina Pereira de; Saliba,Eloisa de Oliveira Simões; Barbosa,Geraldo Sérgio Senra Carneiro; Lopes,Fernando César Ferraz; Silva,Filipe Aguiar e; Silva,Cecília Ribeiro da Mota e; Nunes,Andressa Nathalie; Figueiredo,Meliza Cristina Pereira de. |
| ABSTRACT This study was conducted to evaluate the effect of substituting Tifton 85 hay (Cynodon sp. cv. Tifton 85) with levels of cocoa (Theobroma cacao) byproduct (0, 8, 16, and 24%, diet dry matter basis) in the diet of 16 Holstein × Gir heifers with an average body weight of 363.0±27.7 kg on their nutrient intake, digestibility, and protein balance. The experimental period was 17 days, and the sample collection period was five days. There was no effect of cocoa byproduct on nutrient intake. However, the byproduct affected the digestibility of dry matter, crude protein, neutral detergent fiber, and acid detergent fiber, all of which decreased as the level of inclusion of the byproduct in the diet was increased. Nitrogen balance was negatively affected by... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal nutrition; Digestibility; Fiber; Intake; Theobroma cacao L.. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100617 |
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| Couto Filho,Cristovão Colombo de Carvalho; Saliba,Eloísa de Oliveira Simões; Rodriguez,Norberto Mario; Barbosa,Geraldo Sérgio Senra Carneiro; Freitas,Regeane Martins de; Resende,Matheus Pinheiro Diniz. |
| The objective of this study was to evaluate the flow of nitrogenous compounds, protein degradability, rumen degradation of total carbohydrate and organic matter and microbial efficiency in heifers subjected to diets containing corn silage, sugarcane or Tifton. For this purpose, the 2,6-diaminopimelic acid (DAPA) technique was adopted and analytical procedures for amino acids by HPLC were adapted. Six rumen-fistulated Holstein-Zebu heifers with 480 kg of initial BW and at 24 months of age kept in individual tie stalls were assigned to two 3 × 3 Latin squares. Omasal digesta dry matter and microbial dry matter flows were determined using the isolated, purified and enriched lignin (LIPE®) and DAPA markers, respectively. Isolated bacteria from rumen showed on... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Corn silage; Flow of nitrogen compounds; HPLC; Microbial efficiency; Protein degradability; Sugarcane. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000500180 |
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