Genetic and non-genetic factors affecting productive and reproductive traits in Deoni cattle

DOI: 10.18805/ijar.B-3574    | Article Id: B-3574 | Page : 699-703
Citation :- Genetic and non-genetic factors affecting productive and reproductive traits in Deoni cattle.Indian Journal Of Animal Research.2019.(53):699-703
Sukanta Basak, D.N. Das and U.T. Mundhe utmundhe12@gmail.com
Address : ICAR-National Dairy Research Institute, Southern Regional Station, Bengaluru-560 030 India.
Submitted Date : 6-02-2018
Accepted Date : 23-05-2018

Abstract

The present study was carried out in Deoni, the dual purpose cattle breed of Southern India, maintained at NDRI herd, SRS, Bengaluru. Mean phenotypic performances for the traits of age at first calving (AFC), first service period (FSP), first lactation milk yield (FLMY) and first lactation length (FLL) were estimated as 42.90 ± 0.49 months, 179.00 ± 6.3 days, 643.08 ± 25.16 kg and 178.24 ± 4.41 days respectively. Significant effect of parity was found on AFC and FSP. Effect of period of birth, period of calving and season of calving was found to be significant on FSP. Significant effect of period of birth, period of calving, classes of AFC and FLL were found on FLMY. The heritability of first lactation milk yield was estimated as 0.38 ± 0.29. Phenotypic correlation of FLMY with FLL (0.88 ± 0.02) was found to be highly significant (p<0.01).

Keywords

Deoni cattle First lactation milk yield Heritability Phenotypic correlation.

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