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Kerala Veterinary and Animal Science University, Mannuthy, Thrissur, INDIA

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FACTORS AFFECTING REPRODUCTIVE TRAITS IN DEONI AND HOLSTEIN FRIESIAN X DEONI HALFBREDS (F1)

B.M. Thombre, K.R. Mitkari" B.V. Gujar, p.v. Padghan

Affiliations

¹Department of Animal Husbandry and Dairy Science, Marathwada Agricultural University, Parbhani - 431 402, India

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Cite article:- Thombre B.M., Gujar B.V. Mitkari" K.R., Padghan p.v. (2025). FACTORS AFFECTING REPRODUCTIVE TRAITS IN DEONI AND HOLSTEIN FRIESIAN X DEONI HALFBREDS (F1). Indian Journal of Animal Research. 36(2): 141 - 143. doi: .

ABSTRACT

The data of 961 lactation records each of Deoni and Holstein Friesian × Deoni (HF × D) halfbreds spread over a period of 21 years were analysed to assess the influence of farm, season and period of calving on Service Period (SP) and Inter-calving Period (ICP). The least squares means (LSM) for SP and ICP in Deoni and HF × D half-bred cows were 254.40 ± 5.13 and 533.64 ± 5.21 days and 151.23 ± 4.91 and 433.12 ± 5.39 days, respectively. The farm showed highly significant (P0.01) influence on SP in Deoni, while farm and period have highly significant (P0.01) influence on SP in HF × D halfbreds. However, effect of season was not sgnificant on SP in Deoni and HF × D halfbreds. Farm showed highly significant (P0.01) effect on ICP in Deoni as well as HF × D halfbreds. The influence of period of calving was significant (P0.05) in Deoni cattle and highly significant (0.01) in HF×D halfbreds. rhe effect of seaso of calving was no-significant n ICP in Deoni as well as HF × D halfbreds.

KEYWORDS

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