Relationship between lysine level in the diets and performance of EV2 meat-type quails during the growing period.

The total lysine requirements for EV2 meat-type quails during the growing phase were evaluated in a completely randomized experimental design, using 312 quails of both genders, with six levels of total lysine (1.4; 1.5; 1.6; 1.7; 1.8; and 1.9%), four replicates of thirteen quails per experimental unit. Body weight (g), weight gain (g), feed intake (g), and feed:weight gain ratio were recorded for all the experiment and growing period (initial - from birth to 21 days and total - from birth to 42 days of age). Significant effects of total lysine level on body weight, weight gain, feed intake, and feed:weight gain ratio were observed from birth to 21 days of age, with maximum performance for quails fed 1.66; 1.66; 1.40; and 1.59% of total lysine in the diets, respectively. Quadratic effects of total lysine level on body weight at 42 days of age and weight gain, feed intake, and feed:weight gain ratio, were observed with estimated maximum performance for quails fed 1,62; 1.62; 1.60; and 1.61% of total lysine in the diets, respectively. The total lysine requirement for maximum weight gains for males and females from birth to 21 days of age was estimated in 1.66% and from birth to 42 days of age in 1.62% of the diet.

[1]  G. G. Santos,et al.  Desempenho de codornas de corte EV1 alimentadas com diferentes níveis de lisina na dieta , 2007 .

[2]  G. G. Santos,et al.  Exigências em proteína bruta para codornas de corte EV1 em crescimento , 2007 .

[3]  G. G. Santos,et al.  Exigência de proteína bruta e energia metabolizável para codornas de corte EV1 , 2007 .

[4]  G. G. Santos,et al.  Exigência de metionina + cistina total para codornas de corte em crescimento , 2006 .

[5]  M. Andreotti,et al.  Desempenho e rendimento de carcaça de frangos de corte submetidos a diferentes níveis de treonina e lisina, na fase final de criação , 2001 .

[6]  H. Rostagno.  Tabelas brasileiras para aves e suínos : Composição de Alimentos e Exigências Nutricionais , 2000 .

[7]  J. L. Donzele,et al.  Níveis de lisina digestível para pintos de corte machos na fase de 1 a 21 dias de idade , 1999 .

[8]  P. Waldroup,et al.  Influence of dietary lysine levels and arginine:lysine ratios on performance of broilers exposed to heat or cold stress during the period of three to six weeks of age. , 1997, Poultry science.

[9]  F. B. Fialho,et al.  METIONINA E LISINA NO DESENVOLVIMENTO DE FRANGOS DE CORTE , 1995 .

[10]  D. Baker,et al.  Digestible lysine requirement of male and female broiler chicks during the period three to six weeks posthatching. , 1994, Poultry science.

[11]  J. D. Summers,et al.  The effect of minimizing amino acid excesses in broiler diets. , 1991, Poultry science.

[12]  P. Waldroup,et al.  Feather meal as a nonspecific nitrogen source for abdominal fat reduction in broilers during the finishing period. , 1988, Poultry science.

[13]  D. Baker,et al.  Effect of age on the lysine and sulfur amino acid requirement of growing chickens. , 1973, Poultry science.

[14]  D. Baker,et al.  Sulfur amino acid nutrition of the growing chick: effect of age on the dietary methionine requirement. , 1971, Poultry science.

[15]  C. Weber,et al.  Lysine, methionine and glycine requirements of Japanese quail to five weeks of age. , 1970, Poultry science.