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| Coneglian,Sabrina Marcantonio; Branco,Antonio Ferriani; Guimarães,Kátia Cylene; Mano,Daniel Suzigan; Barreto,Julio Cezar; Fávaro,Vanessa Ruiz. |
| This study was conducted in order to evaluate the effects of replacing dicalcium phosphate by rock phosphate in diets of growing steers. It was determined the following aspects: apparent digestibility of diets; phosphorus (P), calcium and fluorine apparent absorption; ruminal pH; ruminal ammonia concentration; microbial efficiency and plasma P. Five rumen fistulated Holstein steers weighting 275 - 283 kg were used. Experimental design was a 5 × 5 Latin square and diets consisted of 0, 25, 50, 75 and 100% of dicalcium phosphate replacement by rock phosphate in the mineral supplement. Addition of rock phosphate in the diets produced a linear increase on intake, rumen outflow and fecal output and total disappearance of fluorine. Diets did not differ to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Phosphorus sources; Plasma phosphorus; Rumen microbial protein; Ruminal fermentation. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000400017 |
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