Abstract: The research study titled
“Studies on Breeding Efficiency of Deoni Cattle Maintained at an Organised Farm” was conducted using the performance records of Deoni cattle maintained at the Cattle Cross Breeding Project, Vasantrao Naik Marathwada Krishi Vidyapeeth, Parbhani (MS), covering the period from 1991 to 2024. The investigation focused on productive and reproductive traits, including lactation milk yield, peak milk yield, days to attain peak yield, lactation length, dry period, age at first calving, service period, gestation period, and calving interval.
The analysis utilized 34 years of data (1991-2024), comprising 713 lactation records from 494 Deoni cows. The overall least-squares means for LMY, PMY, DRPMY, LL, DP, AFC, SP, GP, and CI were estimated as 416.17±4.65 kg, 2.97±0.03 kg, 40.36±1.14 days, 204.70±3.26 days, 293.66±7.72 days, 1687.17±18.44 days, 229.04±6.33 days, 280.20±0.34 days, and 485.51±6.57 days, respectively.
The period of calving significantly influenced LMY, PMY, LL, DP, AFC, SP, GP, and CI, but showed no significant effect on DRPMY. Conversely, the season of calving did not exert a significant effect on either productive or reproductive traits. Age at first calving was found to significantly affect LMY, PMY, and DP, while its effect on DRPMY, LL, SP, GP, and CI was non-significant.
