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| Michelotti,Tainara Cristina de Abreu; Silva,Ricardo Antonio da; Carneiro,Jorge Henrique; Navarro,Rodrigo Barros; Carvalho,Igor Quirrenbach de; Paula,Eduardo Marostegan de; Ferraretto,Luiz Felipe; Caetano,Mariana; Lanna,Dante Pazzanese Duarte; Almeida,Rodrigo de. |
| ABSTRACT: Ensiling corn for longer periods is a strategy used to increase rumen bacteria access to starch. In fact, when corn is ensiled for insufficient periods, starch digestibility decreases, as evidenced by excreted starch. This study investigates the effects of corn silage ensiling time on starch digestibility of dairy cows through fecal starch analysis. The trial was conducted during the spring of 2013 and the fall of 2014 on twenty dairy herds located in the state of Paraná, southern Brazil. Total mixed ration (TMR), whole-plant corn silage (WPCS) and fecal samples were collected for determination of dry matter (DM), neutral detergent fiber (NDF), acid detergent fiber (ADF), lignin and starch. Apparent total tract starch digestibility (ATTSD) was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ensiling period; Fecal starch; Whole-plant corn silage. |
| Ano: 2021 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000200401 |
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| Moriel,Philipe; Cappellozza,Bruno Ieda; Ferraretto,Luiz Felipe; Aboin,Augusto Cossolino; Vieira,Fernanda Victor Rodrigues; Rodrigues,Ricardo de Oliveira; Cooke,Reinaldo Fernandes; Vasconcelos,José Luiz Moraes. |
| Forty-five non-lactating, pregnant Holstein animals (18 heifers and 27 multiparous cows; BW = 561±114 kg; BCS = 2.9±0.3; days pregnant = 110±56 d) were stratified by initial BW and BCS, and randomly assigned to receive daily (as-fed basis) 0.50 kg of ground corn plus 0.22 kg of kaolin (CON), calcium salts of saturated fatty acids (SFA) or polyunsaturated fatty acids (PF) for 14 d. Blood samples were collected on days 0, 7 and 14, immediately prior to (0 h) and 3, 6, 9 and 12 h after feeding, to determine the serum concentrations of P4 and insulin. No treatment effects were detected for serum concentrations of P4 (5.52, 6.13 and 5.63±0.41 ng/mL for CON, SFA and PF, respectively). No treatment effects were detected for serum concentrations of insulin (11.5,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hepatic metabolism; Linoleic; Linolenic; PUFA. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014000100004 |
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