Reproductive rates and performance traits in beef cattle infected by Bovine Herpesvirus
DOI:
https://doi.org/10.11606/issn.1678-4456.bjvras.2006.26551Keywords:
Bovine Herpesvirus 1, Beef Cattle, Zebu breeds, Reproductive, Performance, Performance traitsAbstract
Reproductive rates and performance traits in beef cattle females infected by Herpesvirus Bovine-1 (BoHV-1) were evaluated in a farm at São Paulo state, Brazil. Gir, Guzerá, Nelore and Caracu purebred animals were examinated to BoHV-1 (ELISA) at the beginning of the breeding season and the occurrence of reactors was 54.2% (386/712). BoHV-1 did not interfere in the pregnancy rates of both reagent - 80.3% (310/386) and non-reagent - 74.5% (243/326) females. It did not reduce the parturition rate of both reagent - 97.7% (300/307) and non-reagent - 93.8% (225/240) females. Total rate of stillbirths in BoHV-1 reagent females - 1.3% (4/300) did not differ from non-reagent females - 2.2% (5/225). BoHV-1 did not affect performance traits for reagent and non-reagent females, respectivelly, to daily weight gain during the breeding season (459.90 ± 2.82 g and 466.63 ± 2.87 g), body condition score at the beginning of the breeding season (6.89 ± 0.08 and 6.99 ± 0.08), body condition score at the end of the breeding season (7.73 ± 0.06 and 7.71 ± 0.06), weight at parturition (419.17 ± 3.34 kg and 425.97 ± 3.22 kg). It was concluded that non-vaccinated beef cattle females infected by BoHV-1 and bred under adequate extensive management, with body condition score over 5 and gain of weight during the breeding season presented good pregnancy, parturition and birth rates, no matter the breed, genetic group, age and seroconvertion.Downloads
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Published
2006-12-01
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How to Cite
1.
del Fava C, Pituco EM, Figueiredo LA de, Razook AG, Cyrillo JN dos SG, Cyrillo G, et al. Reproductive rates and performance traits in beef cattle infected by Bovine Herpesvirus. Braz. J. Vet. Res. Anim. Sci. [Internet]. 2006 Dec. 1 [cited 2024 Oct. 4];43(6):739-46. Available from: https://www.revistas.usp.br/bjvras/article/view/26551