Exigencias de lisina e metionina+cistina digestiveis em dietas para frangos de corte na fase de crescimento
作者： Maria José Baptista Barbosa , Otto Mack Junqueira , Marcelo De Oliveira Andreotti , Luciana Cardoso Cancherini
DOI: 10.4025/ACTASCIANIMSCI.V23I0.2644
关键词: Animal science 、 Biochemistry 、 Feed conversion ratio 、 Abdominal fat 、 Cystine 、 Weight gain 、 Chemistry 、 Lysine 、 Broiler 、 Carcass weight 、 Methionine
摘要: An experiment was conducted to evaluate the digestible lysine and methionine+cystine (met+cis) diet requirements for broiler chickens of 22 42 day-old, feed rations with 3 levels (0.90; 0.99 1.09%) met+cis (0.74; 0.81 0.89%). Weight gain (WG) conversion (FC) were better in medium high lysine. Feed intake (FI) viability (V) not affected. The did affect performance. Best CA interaction occurred 2 highest aminoacids. rate efficiency influenced by levels, albeit levels. methionine met+cis, this parameter. Carcass weight, carcass yield, abdominal fat chemical composition breast meat affected met+cis. For best performance, must be 0.99% 0.74%, respectively. If focus is on or cut 0.90
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