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/Aug/2005
Valdir Silveira de Avila, Antônio Mário Penz Jr., Paulo Antônio Rabenschlag de Brum, Antônio Lourenço Guidoni, Paulo Sérgio Rosa, Arlei Coldebella
DOI: 10.1590/S1516-35982005000400015
Four feeding schedule were investigated for broiler breeders: at 6:30 am; 50% feeding at 6:30 am and 50% at 3:30 pm (dual); at 11:00 am, and at 3:30 pm. Arbor Acres breeders were randomly assigned to 48 boxes, with 12 replicates of 27 females and three males each. The nutritional levels and management procedures were those recommended for strain. The variables studied were: total egg production, nest, clean and broken egg production, in six collections (6:30 am, 9:00 am, 11:00 […]
Keywords: egg production; egg quality; feeding schedule; female broiler breeders
01/Oct/2000
Douglas Emygdio de Faria, Otto Mack Junqueira, Nilva Kazue Sakomura, Áureo Evangelista Santana
DOI: 10.1590/S1516-35982000000500018
The objective of this experiment was to evaluate different feeding schedule and oyster shell supplementation on the performance and eggshell quality, determined blood constituents, and on the calcium and phosphorus apparent availability using 120 laying hens Lohmann LSL, aged 70 weeks, distributed in 20 experimental units with six hens each. A completely randomized experimental design was used in a factorial arrangement 2 x 2: feeding systems (ad libitum and fasting from 7 a.m. to 6 p.m.) and oyster shell meal […]
Keywords: calcium; eggshell quality; feeding schedule; laying hens; nutrition; oyster shell meal; phosphorus