Reproductive Performance for Holstein Friesian × Arsi and Holstein Friesian × Boran Crossbred Cattle
نویسندگان
چکیده مقاله:
The study was carried out at Agarfa ATVET College dairy farm to evaluate the reproductive performance of Holstein Friesian× Arsi and Holstein Friesian ×Boran cattle. For the study, records compiled from 1983 to 2012 at the Agarfa dairy farm were used as original data. The effects of breed, bloodlines, season and parity on the reproductive traits were evaluated. Data were analyzed using the general model of the SAS program. The overall mean ± SE of age at first service (AFS), age at first calving (AFC), days open (DO), calving interval (CI), number of service per conception (NSPC), breeding efficiency (BE) and longevity were 32.05 ± 0.57 months, 41.16 ± 0.56 months, 194.62 ± 3.42 days, 475.92 ± 3.44 days, 1.35 ± 0.03 service, 68.67 ± 0.01% and 7.77 ± 0.25 years, respectively. Breed had significant effect (P
منابع مشابه
reproductive performance for holstein friesian × arsi and holstein friesian × boran crossbred cattle
the study was carried out at agarfa atvet college dairy farm to evaluate the reproductive performance of holstein friesian× arsi and holstein friesian ×boran cattle. for the study, records compiled from 1983 to 2012 at the agarfa dairy farm were used as original data. the effects of breed, bloodlines, season and parity on the reproductive traits were evaluated. data were analyzed using the gene...
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عنوان ژورنال
دوره 5 شماره 1
صفحات 35- 40
تاریخ انتشار 2015-03-01
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