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/Jun/2002
Carlos Bôa-Viagem Rabello, Nilva Kazue Sakomura, Flavio Alves Longo, Otto Mack Junqueira, Carlos Roberto Pacheco
DOI: 10.1590/S1516-35982002000500016
The objective of this study was to evaluated a crude protein requirement equation elaborated for broiler breeders. The experiment was conducted with 600 31-weeks old Hubbard HI-Y broiler breeders in a completely randomized experiment with three treatments and five replications. The treatments were: T1- Crude protein supply according to lineage recommendation manual (control), T2 ¾ Crude protein supply according to a prediction equation adjusted in function of the performance data of the standard treatment, and T3 ¾ Crude protein supply […]
Keywords: broiler breeders; prediction equation; protein requirements
01/Dec/2001
João Artur Argenta, Nilva Kazue Sakomura, Pedro Cláudio de Azevedo Junior
DOI: 10.1590/S1516-35982001000700011
The experiment was conducted to evaluate the best feeding program post peak egg production for broiler breeders. Cobb broiler breeders (3168 females and 352 males) were distributed in a randomized experimental design with four treatments and eight replicates per treatment, with 99 females and 11 males per replicate. The evaluated programs were: Program 1 – Reduction 1 g of feed/bird/day/week for each drop of 0.5 points of the egg mass. Program 2 – Reduction of 1 g of feed/bird/day/week post […]
Keywords: broiler breeders; feeding programs; reproduction period