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/Mar/2002
Ana Paula Madureira, Fernando Enrique Madalena, Roberto Luiz Teodoro
DOI: 10.1590/S1516-35982002000300016
Weight, height at withers and the weight/height ratio (an indicator of body condition) of respectively, 263, 232 and 232 cows and 171, 135 and 135 heifers were studied. Animals were of six red and white Holstein-Friesian (HF) x Guzerá (Guz) crosses: ¼, ½, 5/8, ¾, 7/8 and ³ 31/32 HF. Model [1] for cows included the fixed effects of reproductive status, days in milk, season when weighted, farm class, age and genetic group, two-factor interactions and the random effect of […]
Keywords: crossbred cows; crossbreeding; heterosis; liveweight; withers height