
	Journal of Biological Sciences
	Year: 2001 \| Volume: 1 \| Issue: 11 \| Page No.: 1085-1087 DOI: 10.3923/jbs.2001.1085.1087

Productive and Reproductive Performances of Native Cows under Farm Conditions

M.M. Rahman and M. N. Haque

Abstract: Data in five parities of native cows were evaluated for per day milk yield, lactation length, birth weight of calves, post partum heat period, period of calving to conception, gestation length, calving interval and number of service per conception (nos.). Per day milk yield ranged from 2.23+0.48 to 2.62+0.43 liters in different parities. Likewise, lactation length and birth weight of calves ranged from 230.58+69.51 to 266.96+78.91 days and 20.44+3.15 to 21.88+3.19 kg, respectively among different parities. Post partum heat period and period of calving to conception ranged from 133.40+52.61 to 158.68+107.50 days and 162.16+72.49 to 212.88+125.50 days, respectively in different parities. Amongst the parity differences post partum heat period and period of calving to conception were not found to be significant. The mean gestation period during the fifth parity was shorter (p<0.05) than the first and second parities (274.50 vs 279.36 and 279.08 days, respectively). Calving interval and number of service per conception ranged from 445.44+75.04 to 487.40+130.36 days and 1.48+0.77 to 1.88+0.10 numbers, respectively over the parities. But there was no difference on the parameters like calving interval and number of service per conception over the parities.

PDF References Citation Report Citation

RELATED ARTICLES:

•	Cattle Genetic Resources and their Conservation in Bangladesh

•	Underlying Disorders of Postpartum Anoestrus and Effectiveness of their Treatments in Crossbred Dairy Cows

•	A Review on Cattle Reproduction in Bangladesh

How to cite this article:

M.M. Rahman and M. N. Haque , 2001. Productive and Reproductive Performances of Native Cows under Farm Conditions. Journal of Biological Sciences, 1: 1085-1087.

DOI: 10.3923/jbs.2001.1085.1087

URL: https://scialert.net/abstract/?doi=jbs.2001.1085.1087

COMMENT ON THIS PAPER

Navigation


		Online First
		Current Issue
		Previous Issues
		Editorial Board
		Submit a Manuscript
		Guide to Authors
		Subscribe to E-alerts

Indexed In


		AGRICOLA
		AGRIS
		ASCI-Database
		Asian Digital Library
		Cambridge Scientific Abstract
		EMBASE
		Google Scholar
		SCIMAGO

Science Alert