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.
Twoexperimentswere carried out to determine the sodium (Na+) and chloride (Cl–) requirements for broilers in the pre-initial phase (1 to 7 days of age) and the best electrolyte balance of the diet. In each experiment 1500 broilers from Cobb strain were allotted to a completely randonmized design with six treatments, five replicates and 50 birds per experimental unit. The treatments used in the two experiments consisted of diets with levels on 0.10, 0.15, 0.20, 0.25, 0.30 and 0.35% of Na+ (Exper. 1) or Cl ¾
Sodium and chloride requirements and the best electrolyte balance estimate of diets for broiler chickens in the pre-initial phase (1-7 days of age)
Rondón,Edgar O. Oviedo and Murakami,Alice Eiko and Furlan,Antonio Claudio and Garcia,Jocilaine. Sodium and chloride requirements and the best electrolyte balance estimate of diets for broiler chickens in the pre-initial phase (1-7 days of age). R. Bras. Zootec. [online]. 2000, vol.29, 4, [cited 2026-06-04], pp.1162-1166. Available from: <https://rbz.org.br/article/sodium-and-chloride-requirements-and-the-best-electrolyte-balance-estimate-of-diets-for-broiler-chickens-in-the-pre-initial-phase-1-7-days-of-age/>. ISSN 1516-3598. https://doi.org/10.1590/S1516-35982000000400029.
Rondón,Edgar O. Oviedo; Murakami,Alice Eiko; Furlan,Antonio Claudio; Garcia,Jocilaine. Sodium and chloride requirements and the best electrolyte balance estimate of diets for broiler chickens in the pre-initial phase (1-7 days of age). R. Bras. Zootec., v.29, 4, p. 1162-1166. Aug. 2000. Available from: <https://rbz.org.br/article/sodium-and-chloride-requirements-and-the-best-electrolyte-balance-estimate-of-diets-for-broiler-chickens-in-the-pre-initial-phase-1-7-days-of-age/>. acess on 04 Jun. 2026. https://doi.org/10.1590/S1516-35982000000400029.
Rondón,Edgar O. Oviedo, & Murakami,Alice Eiko, & Furlan,Antonio Claudio, & Garcia,Jocilaine. (2000). Sodium and chloride requirements and the best electrolyte balance estimate of diets for broiler chickens in the pre-initial phase (1-7 days of age). R. Bras. Zootec., 29(4) , 1162-1166. https://doi.org/10.1590/S1516-35982000000400029.
RondónEdgar O. Oviedo, MurakamiAlice Eiko, FurlanAntonio Claudio, GarciaJocilaine. Sodium and chloride requirements and the best electrolyte balance estimate of diets for broiler chickens in the pre-initial phase (1-7 days of age). R. Bras. Zootec. [Internet]. 2000 Aug [cited 2026 Jun 04]; 29(4): 1162-1166. Available from: https://rbz.org.br/article/sodium-and-chloride-requirements-and-the-best-electrolyte-balance-estimate-of-diets-for-broiler-chickens-in-the-pre-initial-phase-1-7-days-of-age/. https://doi.org/10.1590/S1516-35982000000400029.
Figure 2
Evolution of cow weight according to the genetic group of calves, from farrowing to weaning.
PCH - calves from predominantly Charolais cows; PNE - calves from predominantly Nellore cows; AACH - calves from breed bulls Aberdeen Angus and predominantly Charolais cow; AANE - calves from breed bulls Aberdeen Angus and predominantly Nellore cow.
