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.
The follicular dynamics and luteal regression were studied in 12 Gir and seven Nelore cows, treated with prostaglandin F2a analog, between days 10 and 12 of the estrous cycle. The synchronization rate was higher than 92% for the Gir and Nelore cows, and the ovulation of the second dominant follicle occurred in 72.7% of the Gir and all the Nelore cows. The Nelore ovulatory follicle diameter was lower than Gir cows ((11.0 ± 0.9 mm x 13.0 ± 1.7 mm). The intervals from treatment to estrus, treatment to ovulation time and from the onset of the estrus to ovulation were 88.7 and 91.6h, 119 and 113h, 26.5 and 24.3h for Nelore and Gir cows, respectively.
Follicular dynamic and luteal regression in Gir and Nelore cows after treatment with cloprostenol sodic
Borges,Álan Maia and Torres,Ciro Alexandre Alves and Ruas,José Reinaldo Mendes and Júnior,Vicente Ribeiro Rocha and Carvalho,Giovanni Ribeiro de. Follicular dynamic and luteal regression in Gir and Nelore cows after treatment with cloprostenol sodic. R. Bras. Zootec. [online]. 2003, vol.32, 2, [cited 2026-03-15], pp.276-283. Available from: <https://rbz.org.br/article/follicular-dynamic-and-luteal-regression-in-gir-and-nelore-cows-after-treatment-with-cloprostenol-sodic/>. ISSN 1516-3598. https://doi.org/10.1590/S1516-35982003000200005.
Borges,Álan Maia; Torres,Ciro Alexandre Alves; Ruas,José Reinaldo Mendes; Júnior,Vicente Ribeiro Rocha; Carvalho,Giovanni Ribeiro de. Follicular dynamic and luteal regression in Gir and Nelore cows after treatment with cloprostenol sodic. R. Bras. Zootec., v.32, 2, p. 276-283. Apr. 2003. Available from: <https://rbz.org.br/article/follicular-dynamic-and-luteal-regression-in-gir-and-nelore-cows-after-treatment-with-cloprostenol-sodic/>. acess on 15 Mar. 2026. https://doi.org/10.1590/S1516-35982003000200005.
Borges,Álan Maia, & Torres,Ciro Alexandre Alves, & Ruas,José Reinaldo Mendes, & Júnior,Vicente Ribeiro Rocha, & Carvalho,Giovanni Ribeiro de. (2003). Follicular dynamic and luteal regression in Gir and Nelore cows after treatment with cloprostenol sodic. R. Bras. Zootec., 32(2) , 276-283. https://doi.org/10.1590/S1516-35982003000200005.
BorgesÁlan Maia, TorresCiro Alexandre Alves, RuasJosé Reinaldo Mendes, JúniorVicente Ribeiro Rocha, CarvalhoGiovanni Ribeiro de. Follicular dynamic and luteal regression in Gir and Nelore cows after treatment with cloprostenol sodic. R. Bras. Zootec. [Internet]. 2003 Apr [cited 2026 Mar 15]; 32(2): 276-283. Available from: https://rbz.org.br/article/follicular-dynamic-and-luteal-regression-in-gir-and-nelore-cows-after-treatment-with-cloprostenol-sodic/. https://doi.org/10.1590/S1516-35982003000200005.
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).
