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| Gardinal,Rodrigo; Gandra,Jefferson Rodrigues; Calomeni,Gustavo Delfino; Vendramini,Thiago Henrique Annibale; Takiya,Caio Seiti; Freitas Júnior,José Esler de; Souza,Heraldo Namorato de; Rennó,Francisco Palma. |
| ABSTRACT The objective of this study was to evaluate the effects of polymer coated slow-release urea (SRU) in high-forage diets of beef steers on nutrient intake and digestibility, ruminal fermentation, microbial protein synthesis, and energy balance. Eight 24-mo-old rumen-fistulated castrated Nellore steers (average body weight = 418.0±40.0 kg) were used in a replicated 4 × 4 Latin square design. Animals were randomly distributed to receive one of the following diets: no urea inclusion; 1.0% inclusion of feed grade urea in the diet (dry matter [DM] basis); 1.0% inclusion of slow-release urea 1 in the diet (DM basis); and 1.0% inclusion of slow-release urea 2 in the diet (DM basis). Slow-release urea 2 had a similar composition to that of slow-release urea... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ammonia; Digestibility; Microbial protein; Nellore; Non-protein nitrogen; Soybean. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000200063 |
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| Calomeni,Gustavo Delfino; Gardinal,Rodrigo; Venturelli,Beatriz Conte; Freitas Júnior,José Esler de; Vendramini,Thiago Henrique Annibale; Takiya,Caio Seiti; Souza,Heraldo Namorato de; Rennó,Francisco Palma. |
| ABSTRACTThe objective of this experiment was to quantify the effects of feeding polymer-coated slow-release urea on nutrient intake and total tract digestion, milk yield and composition, nutrient balances, ruminal fermentation, microbial protein synthesis, and blood parameters in dairy cows. Sixteen Holstein cows (580±20 kg of live weight (mean ± standard deviation); 90 to 180 days in milk (DIM); and 28 kg/d of average milk yield) were used in a replicated 4 × 4 Latin square experimental design. The animals were assigned to each square according to milk yield and DIM. The animals were randomly allocated to receive one of the following experimental diets: 1) control (without urea addition); urea (addition of 1% on the diet DM basis); polymer-coated slow... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nitrogen balance; Nitrogen efficiency; Non-protein nitrogen. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982015000900327 |
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| Gandra,Jefferson Rodrigues; Takiya,Caio Seiti; Oliveira,Euclides Reuter de; Paiva,Pablo Gomes de; Goes,Rafael Henrique de Tonissi e Buschinelli de; Gandra,Érika Rosendo de Sena; Araki,Hayne Mayumi Cariolano. |
| ABSTRACT This study was undertaken to determine the effects of chitosan and whole raw soybean on nutrient intake and total tract digestion, nitrogen utilization, microbial protein synthesis, blood metabolites, and energy balance of dairy heifers. Twelve Jersey heifers (6±0.5 months of age and 139.50±25.56 kg of live weight; mean ± standard deviation) were randomly assigned to a replicated Latin square design with a 2 × 2 factorial arrangement. The experimental period consisted of 14 days of adaptation to diets, six days of sampling, and five days of washout. The experimental diets were: control (CO); chitosan (CHI, inclusion of 2.0 g kg−1 DM of chitosan); whole raw soybean (WS, 163.0 g kg−1 of WS on diet DM basis); and chitosan + whole raw soybean... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antimicrobial; Nitrogen metabolism; Oilseed; Rumen modulator. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982016000300130 |
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