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Research (Published online: 28-03-2014)

13. Productive performance of indigenous and HF crossbred dairy cows in Gondar, Ethiopia - Niraj Kumar, Alemayehu Eshetie, Abreha Tesfaye and Hailelule Aleme Yizengaw
Veterinary World, 7(3): 177-181

 

doi: 10.14202/vetworld.2014.177-181

 

 

 

 

Abstract

Aim: To study the magnitude of variation in lactation length (LL), lactation milk yield (LMY) and peak-yield (PY)due to genetic and non-genetic cases in indigenous and crossbred cattle reared under private dairy unit in and around Gondar, Ethiopia.
Materials and Methods: The study was conducted on 411 milch animals from 86 dairy farmers comprising of 172 indigenous and 239 Holstein-Friesian (HF) crossbred cows. These cows were maintained under farmer's management system in and around Gondar (Ethiopia) and were analyzed by Least squares analysis to study the magnitude of variation in their LL, LMY and PY due to genetic and some non-genetic factors.
Result: The overall Least squares means for LL, LMY and PY were estimated to be 275.1165.23 days, 1407.3471.34 litres and 6.880.38 litres respectively. Genetic group and lactation order had significant effect (P0.01) on LL, LMY and PY. Season of calving had significant effect (P0.01) on LMY and PY but its effect on LL was non-significant. Effect of location of herd was significant (P0.05) on LMY and PY while its effect on LL was non-significant. Variations in all the traits due to herd size and farming system were statistically non-significant.
Conclusion: Productive performance of dairy cows in this study was found to be lesser than the optimum values desirable for profitable milk production.
Keywords: crossbred cows, indigenous, lactation length, lactation milk yield, peak milk yield.

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