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/Sep/1999
Valéria Maria Nascimento Abreu, Martinho de Almeida e Silva, Cosme Damião Cruz, Élsio Antônio Pereira de Figueiredo, Paulo Giovanni de Abreu
DOI: 10.1590/S1516-35981999000500007
This study was conducted using data from single crosses (diallel) withim three female lines (PP, KK and VV). A completely randomized block design, with 81 single crosses treatments, three replicales with 81 broilers was used. The twelve production traits were: egg number during the periods of 24th-32nd, 32nd-40th, 40th-48th, 48th-56th, 56th-64th, 22nd-66th, 32nd-66th, 40th-66th, 48th-66th, 24th-40th, 24th-48th and 24th-56th weeks of age. The first two principal components explained more than 98% of total variance of the crosses means. In the […]
Keywords: broiler lines; combining ability; egg production traits; principal component