Effect of book size and age of mare and stallion on foaling rates in thoroughbred horses |
| |
| Authors: | KJ McDowell PhD DG Powell BVSc CB Baker DVM |
| |
| Institution: | aAuthors' address: Gluck Equine Research Center, Department of Veterinary Science, University of Kentucky, Lexington, KY 40546-0099, USA. |
| |
| Abstract: | The entire population data for Thoroughbred horses in the United States, Canada and Puerto Rico registered with the Jockey Club of America were utilized to study the effect of stallion book size, age of mare and age of stallion on live foal percentage for the 1987 and 1988 breeding seasons. There were 17,260 stallions bred to 179,009 mares, with a resulting overall live foaling rate of 58.1%. There was an increase in live foal percentage as book size increased (P<0.001) and a decrease in live foal percentage as mare age increased (P<0.0001). Stallion age had no effect on live foal percentage. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
