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.
This trial was run at Estación Experiment Agropecuária of INTA (EEA-INTA, Rafaela), Argentina. Thirty-two high producing Hostein-Argentina dairy cows were used in early lactation, aiming to evaluate blood parameters at two levels of protected fat (0 and 400 g/cow/day) and two types of alfalfa (fresh or haylage). All cows were submitted to a pre-trial period of fifteen day in two groups: with and without fat supplementation. The animals, post-partum, were allocated to paddocks with green or pre-dried alfalfa, comprising, then, four experimental treatments. A completely randomized design with a 2×2 factorial, using days post-partum and lactation order as covariates, was used. The statistical analysis was performed by using the analysis of variance and F-test. There were no differences among experimental treatments.
Protected fat to high producing dairy cows, under grazing, supplemented with fresh or haylage alfalfa, in early lactation: blood parameters
Bermudes,Rogério Fôlha and López,Jorge and Gallardo,Miriam and Silva,José Henrique Souza da and Cuatrin,Alejandra. Protected fat to high producing dairy cows, under grazing, supplemented with fresh or haylage alfalfa, in early lactation: blood parameters. R. Bras. Zootec. [online]. 2003, vol.32, 2, [cited 2026-03-08], pp.405-410. Available from: <https://rbz.org.br/article/protected-fat-to-high-producing-dairy-cows-under-grazing-supplemented-with-fresh-or-haylage-alfalfa-in-early-lactation-blood-parameters/>. ISSN 1516-3598. https://doi.org/10.1590/S1516-35982003000200019.
Bermudes,Rogério Fôlha; López,Jorge; Gallardo,Miriam; Silva,José Henrique Souza da; Cuatrin,Alejandra. Protected fat to high producing dairy cows, under grazing, supplemented with fresh or haylage alfalfa, in early lactation: blood parameters. R. Bras. Zootec., v.32, 2, p. 405-410. Apr. 2003. Available from: <https://rbz.org.br/article/protected-fat-to-high-producing-dairy-cows-under-grazing-supplemented-with-fresh-or-haylage-alfalfa-in-early-lactation-blood-parameters/>. acess on 08 Mar. 2026. https://doi.org/10.1590/S1516-35982003000200019.
Bermudes,Rogério Fôlha, & López,Jorge, & Gallardo,Miriam, & Silva,José Henrique Souza da, & Cuatrin,Alejandra. (2003). Protected fat to high producing dairy cows, under grazing, supplemented with fresh or haylage alfalfa, in early lactation: blood parameters. R. Bras. Zootec., 32(2) , 405-410. https://doi.org/10.1590/S1516-35982003000200019.
BermudesRogério Fôlha, LópezJorge, GallardoMiriam, SilvaJosé Henrique Souza da, CuatrinAlejandra. Protected fat to high producing dairy cows, under grazing, supplemented with fresh or haylage alfalfa, in early lactation: blood parameters. R. Bras. Zootec. [Internet]. 2003 Apr [cited 2026 Mar 08]; 32(2): 405-410. Available from: https://rbz.org.br/article/protected-fat-to-high-producing-dairy-cows-under-grazing-supplemented-with-fresh-or-haylage-alfalfa-in-early-lactation-blood-parameters/. https://doi.org/10.1590/S1516-35982003000200019.
Figure 3
Ruminal disappearance of ash-free neutral detergent fiber (aNDFom) at 30 h of in situ incubation in corn husks (fresh and ensiled) treated with calcium oxide (CaO) and a mixture of corn heavy steep water and sugarcane molasses (HM).
