| Author(s) | M. J. Al-Hassan |
| Affiliation | Department of Animal Production, College of Agriculture, King Saud University, P.O. Box 2460, , Riyadh 11451, Saudi Arabia |
| Title | Evaluating the Reproductive Performance of a Dairy Farm in Riyadh Region |
| Source | Journal of King Saud University. Agricultural Sciences. Volume 14, No 2. (2002/1422) |
| Abstract | The aim of this study was to evaluate the reproductive performance of a dairy herd in Riyadh region, so the performance can be optimized. In this study, a dairy herd was evaluated from its 1996 records (606 records) for the following parameters: calving interval, days open, heat detection rate, conception rate after first, second and third insemination and services : conception ratio. Average days to first insemination was 51 days and average days open for pregnant cow was 84.3 days. Overall conception rate (up to the third insemination) was 98.5% for heifers and 67% for cows. In addition, the number of inseminations per conception was 2.42 for heifers and 6 inseminations for cows. The accuracy of heat detection was low, and in heifers it reached 43% while in cows it reached 69%. Furthermore, interestrus interval average was 30.5 days. |
