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| Santiago,Alberto Magno Ferreira; Campos,José Maurício de Souza; Oliveira,André Soares de; Valadares Filho,Sebastião de Campos; Santos,Stefanie Alvarenga; Souza,Shirley Motta de; Santiago,Iara Furtado. |
| We evaluated the effect of adding four levels (0, 4, 8 and 12 g/kg, as fed) of a mixture (9:1) of urea and ammonium sulfate (UAs) to sugarcane on feed intake and digestibility, productive performance and metabolism of nitrogen compounds of dairy cows. Twelve multiparous Holstein cows (12.6±0.5 kg/d of milk, 225±90 days in milk) were distributed in three 4 × 4 Latin squares, receiving diets with the same amount of nitrogen (125 g crude protein/kg of dry matter). Concentrate feed was supplied at a ratio of 1 kg for each 3 kg of milk produced. The sugarcane presented 21.9 ºBrix. The level of UAs did not affect intake, total digestibility of diet components, milk production or milk components. Increasing UAs level linearly increased concentration of plasma... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Metabolism; Milk production; Nitrogen. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000600010 |
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