The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
The Revista Brasileira de Zootecnia (RBZ) is a publication dedicated to the broad field of Animal Science. We publish high-quality, original scientific research that spans across diverse areas within the discipline. The scope of RBZ encompasses a wide range of topics, including aquaculture, biometeorology and animal welfare, forage crops and grasslands, animal and forage plants breeding and genetics, animal reproduction, ruminant and non-ruminant nutrition, meat science and muscle biology, precision livestock, and animal production systems and agribusiness.
01/Oct/2007
Ramalho José Barbosa Rodrigueiro, Horacio Santiago Rostagno, Luiz Fernando Teixeira Albino, Paulo Cezar Gomes, Ricardo Vianna Nunes, Rafael Neme
DOI: 10.1590/S1516-35982007000600020
With the objective of determine the nutritional requirement of lysine for growing white-egg and brown-egg laying hens in the period from 1 to 3 and 4 to 6 weeks of age, 480 birds were used in the period from 1 to 3 weeks of age and 432 birds in the period from 4 to 6 weeks of age. In both periods, Hy-line birds were used; 50% Hy-line W 36 (White) and 50% Hy-line Brown in completely randomized design in a […]
Keywords: amino acids; commercial laying hens; growth; lysine requirement