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http://142.54.178.187:9060/xmlui/handle/123456789/18078| 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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| File | Description | Size | Format | |
|---|---|---|---|---|
| 176-180.htm | 119 B | HTML | View/Open |
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