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Vol. 9, Issue 1, Part I (2024)

Evaluation of impact of non-genetic factors on overall and lifetime lactation traits in Kankrej cattle

Author(s): Radha Rani Sawami, Virendra Kumar, Anil, Rajesh Kumar Bochlya and Priyanka Swami
Abstract: The present study was conducted on 274 Kankrej cattle maintained at Livestock Research Station, Kodamdesar, Rajasthan University of Veterinary and Animal Sciences, Bikaner, calved during the period 2012 to 2022. The aim of present investigation was to access the effect of parity, season and period (non-genetic factors) on first overall and lifetime production traits in Kankrej cattle. The traits evaluated as overall lactation length (LL), overall dry period (DP), overall lactation total milk yield (LTMY) and overall calving interval (CI), lifetime milk yield as total milk yield up to 5 lactations (LTMY5) and lifetime milk yield as total milk yield up to 7 lactations (LTMY7). To estimate the effect of non-genetic factors, computer package programme, IBM SPSS version 26.0 was used for least-squares analysis. The least-squares means estimated for overall LL, DP, LTMY, CI were 222.291±2.244 days, 124.429±1.767 days, 1499.066±2.296 kg, and 406.94±2.296 days, respectively. The least-squares means for lifetime traits in Kankrej cattle were 6940.839±299.539 kg for lifetime milk yield upto5 lactations (LTMY5) and 10530.929±765.164kg for lifetime milk yield upto7 lactations (LTMY7), respectively.
The effect of parity of the cows was observed to be highly significant on overall lactation length and on overall calving interval. Period and season of calving had a highly significant (p≤0.01) effect on overall lactation length, overall lactation total milk yield. Period of calving had a significant effect on overall calving interval. Period of calving had highly significant effect on LTMY5 and significant effect on LTMY7. Findings of present study will help in further research in a large population of indigenous cattle.
Pages: 628-633  |  41 Views  2 Downloads
How to cite this article:
Radha Rani Sawami, Virendra Kumar, Anil, Rajesh Kumar Bochlya, Priyanka Swami. Evaluation of impact of non-genetic factors on overall and lifetime lactation traits in Kankrej cattle. Int J Vet Sci Anim Husbandry 2024;9(1):628-633.
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