Metabolizable energy levels for meat quails from 15 to 35 days of age

Ciência Rural

Barreto, Sérgio Luiz de Toledo¹  Ribeiro, Cleverson Luís Nascimento¹  Mencalha, Raquel³  Hannas, Melissa Izabel¹  Viana, Gabriel da Silva¹  Reis, Renata de Souza²  Albino, Luiz Fernando Teixeira¹  Muniz, Jorge Cunha Lima¹ 

[1] Universidade Federal de Viçosa, Viçosa, Brazil;Universidade Federal de São João Del Rei, São João Del Rei, Brasil;Universidade Federal de Lavras, Lavras, Brazil

关键词: Coturnix coturnix sp;    energy: protein ratio;    performance;   

DOI  :  10.1590/0103-8478cr20141666

学科分类：农业科学（综合）

来源: Universidade Federal de Santa Maria * Centro de Ciencias Rurais

【 摘 要 】

: This trial was carried out to evaluate the effects of dietetic metabolizable energy levels on performance and carcass traits of meat quails from 15 to 35 days old. Five hundred sixty, 15-d old, meat quails were randomly assigned to five treatments (2.850; 2.950; 3.050; 3.150 e 3.250kcal of ME kg-1 of diet), with eight replicates and fourteen birds per experimental unit. Feed intake, protein and lysine intake and feed conversion decreased linearly as the metabolizable energy content of diets increased (P<0.01), whereas metabolizable energy intake, body weight, weight gain and viability were not affected (P>0.05) by the treatments. Diets did not influence (P>0.05) carcass traits as dry matter, moisture and protein content in carcass. However a quadratic effect (P<0.04) were observed on carcass fat content. Based on these results, the adequate metabolizable energy level to ensure better meat quails' growth is 3.250kcal of ME kg-1 diet, that corresponds to a metabolizable energy: crude protein ratio of 139,24.

【 授权许可】

Unknown