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Research Articles

Reproductive and Productive Performance of Up-Country Exotic Dairy Cattle Breeds of Sri Lanka

Authors:

KMPMB Kollalpitiya,

Postgraduate Institute of Agriculture, University of Peradeniya, LK
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S Premaratne ,

Department of Animal Science, Faculty of Agriculture, University of Peradeniya, Peradeniya,, LK
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BL Peiris

Department of Crop Science, Faculty of Agriculture, University of Peradeniya, Peradeniya, LK
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Abstract

The objective of the study was to assess the production and reproduction performance of up country dairy cattle breeds in Sri Lanka. A total of 200 dairy cows were selected for the study from 4 breeds (Friesian, Ayrshire, Jersey and Crossbred). The traits studied were age at 1st service, age at 1st calving, birth weight, mean milk production per lactation, average milk production per day, post partum heat, and calving interval for 6 lactation periods. It was revealed that the age at 1st service (679 day) and age at 1st calving (998 days) of Friesian were lower (p<0.05) than those of other breeds. Highest (P<0.05) birth weight of 35 kg was reported from Friesian compared to other breeds. Mean lowest (P<0.05) post partum heat of 75 day was recorded from Jersey. The lowest (p<0.05) calving interval of 403 days was reported from Jersey compared to other breeds. The highest (p<0.05) milk production per day (17 L/day) and per lactation (5519 L) were recorded from Friesian. Reproductive and productive performances of Friesian and Jersey breeds were better than Ayrshire and Cross-bred cows. Lowest average age at 1st service and age at 1st calving, highest birth weight and milk production were reported from Friesian, whereas, the lowest mean post partum heat and calving interval were recorded from Jersey. Differences in reproductive and productive performances were mainly attributed to breed and different feeding and management systems used in different farms.

Tropical Agricultural Research Vol. 23 (4): 319-326 (2012)

DOI: http://dx.doi.org/10.4038/tar.v23i4.4867
How to Cite: Kollalpitiya, K., Premaratne, S. & Peiris, B., (2012). Reproductive and Productive Performance of Up-Country Exotic Dairy Cattle Breeds of Sri Lanka. Tropical Agricultural Research. 23(4), pp.319–326. DOI: http://doi.org/10.4038/tar.v23i4.4867
Published on 02 Nov 2012.
Peer Reviewed

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