FACTORS AkI4ECTING CALVING INTERVAL AND SERVICE PERIOD IN HOLSTEIN FRIESIAN X SAHIWAL CROSSBRED COWS

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Title:	FACTORS AkI4ECTING CALVING INTERVAL AND SERVICE PERIOD IN HOLSTEIN FRIESIAN X SAHIWAL CROSSBRED COWS
Authors:	M. Rafique K.R. Chohan M.A. Amer
Issue Date:	3-Oct-1999
Publisher:	Faisalabad: Faculty of Veterinary Science University of Agriculture Faisalabad
Citation:	Rafique, M., Chohan, K. R., & Amer, M. A. (1999). Factors affecting calving interval and service period in Holstein friesian X Sahiwal crossbred cows. Pakistan Veterinary Journal (Pakistan).
Abstract:	The data on 1491 breeding records of service period and calving interval of different grades of H. Friesian x Sahiwal 75, 62.5, 37.5, 25% and'/: (F1, F2, F3, F4) crossbred over a period of 19 years (1976-1994) were utilized. The overall average least square means and SE for service period and calving interval were137.4±6.82 and 419.78±6.04 days, respectively. Both traits were significantly (P> 0.01) influenced by year, season and parity of calving, while the year x season interaction had non-significant effect on both traits. The Spring season calvers and older cows were having shorter service period and calving interval.
URI:	http://142.54.178.187:9060/xmlui/handle/123456789/18078
ISSN:	0253-8313
Appears in Collections:	Issue 04

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