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Non genetic factors effect on reproductive performance and preweaning mortality from artificially and naturally bred in Bali cattle

Gunawan, A., Sari, R., Parwoto, Y. and Uddin, M.J. (2011) Non genetic factors effect on reproductive performance and preweaning mortality from artificially and naturally bred in Bali cattle. Journal of the Indonesian Tropical Animal Agriculture, 36 (2). pp. 83-90.

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Abstract

The aim of this study was to evaluate effect of non genetic factors on reproductive performance of Bali cattle. Data on reproduction performance were collected from Breeding Centre of Bali Cattle in Denpasar-Bali. Reproductive traits studied were age at first calving (AFC), calving interval (CI) and pregnancy rate (PR). To observe the effect of non genetic factors on the reproductive traits, a mixed model was used because all of the traits studied were measured repeatedly in individuals. The overall means for AFC, CI, PR and preweaning mortality were 43.86±0.70 months, 360.93±4.47 days, 88.44±1.91% and 7.58±1.07%, respectively. The results showed that AFC and PR were significantly (P<0.01) influenced by dam year of birth but mating system had no significant (P>0.05) effect. With regard to CI, dam year of birth and parity affected CI while mating system had no significantly affect (P>0.05) on CI. The preweaning mortality was only affected by the age of dam significantly (P<0.01). The average of reproductive performance and preweaning mortality in Bali Cattle were not depended remarkably on the mating system being practiced. It might be concluded that an improvement in Bali cattle reproductive traits is possible through improving management systems and utilisation of controlled breeding techniques.

Item Type: Journal Article
Publisher: Universitas Diponegoro
Copyright: © 2011 A. Gunawan et al.
URI: http://researchrepository.murdoch.edu.au/id/eprint/62691
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