Níveis de lisina digestível para poedeiras Lohmann LSL na fase de 16 a 25 semanas de idade

Resumo

In this experiment, the effects of digestible lysine levels on performance, nitrogen balance and fat digestibility in Lohmann LSL hens 16 to 25 weeks of age were evaluated. Four levels of digestible lysine (0.6, 0.7, 0.8 and 0.9% in ration) were assessed by utilizing 160 16-year-old laying hens 16 to 25 weeks of age. The diets were isonutritive with 17% CP and 2800 (pre laying) and 2750 (pre peak) kcal/kg. A completely randomized design was used with four lysine levels assessed in four replicates. The lysine levels did not influence weight gain, feed intake, protein and energy intake, age at first egg laying, egg production, egg weight, feed conversion indexes, egg mass, nitrogen balance or crude fat. There was positive linear increase on lysine intake according to the dietary levels of digestible lysine. Lysine levels do not influence the performance or the nutrients balance, and 0.6% of lysine per kilogram of feed is recommended.

Descrição

Palavras-chave

Aminoácido essencial, Consumo, Frangas, Produção de ovos, Chickens, Egg production, Essential amino acid, Feed intake

Citação

JARDIM FILHO, Roberto de Moraes; STRINGHINI, José Henrique; CAFÉ, Marcos Barcellos; LEANDRO, Nadja Susana Mogyca; ANDRADE, Maria Auxiliadora; CARVALHO, Fabyola Barros de. Níveis de lisina digestível para poedeiras Lohmann LSL na fase de 16 a 25 semanas de idade. Revista Brasileira de Zootecnia, Viçosa, v. 40, n. 9, p. 1947-1954, 2011.