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.
29/Aug/2025
Lorena Carla Gomes Vernaschi
, Altair Antonio Valloto
, Lenira El Faro Zadra
, Rodrigo de Almeida Teixeira
, Laila Talarico Dias
ABSTRACT The objective of this study was to identify how linear-type traits impact the culling risk and which traits are most associated to productive life of Holstein cows. Linear classification and test-day milk yield data of 34,653 primiparous cows obtained from the database of Associação Paranaense de Criadores de Bovinos da Raça Holandesa were used. Survival analysis was performed by PHREG procedure of SAS/STAT 9.4 using a Cox regression model. The model considered herd and year of the linear classification […]
Keywords: linear classification; longevity; survival analysis
05/Jun/2019
Carlos Luna-Palomera
, Nadia Florencia Ojeda-Robertos
, Jorge Alonso Peralta-Torres
, Ulises Macías-Cruz
, Fernando Sánchez-Dávila
, José Candelario Segura-Correa
ABSTRACT We evaluated the effect of some environmental factors on age at first lambing (AFL) and lambing to conception interval (LCI) of Pelibuey ewes under the humid tropical conditions of Mexico. Ewes grazed on Tanzania (Panicum maximum), Bermuda (Cynodon dactylon), and Brachiaria grass (Brachiaria humidicola) and received hay in the corral in the months of grass scarcity. Reproduction was continuous during the year. Data of 839 lambings from 334 ewes registered from 2009 to 2017 were analyzed using survival analysis […]
Keywords: age at first lambing; lambing to conception interval; parity number; survival analysis; tropics