Title
Effect of Bull Exposure on Reproductive Performance of First-Calf Heifers Bred by Natrual Service
Document Type
Report
Report Number
92-12
Publication Date
1992
Keywords
bull exposure, calving interval, reproductive performance, first-calf heifers
Summary
Ninety-four spring calving, first-calf heifers were allotted to one of two treatment groups, control or bull exposed, to study the effect of bull exposure early postpartum on rebreeding performance when bred by natural service. Bull exposure early postpartum had no effect on pregnancy rate. However, bull exposure unexpectedly increased the subsequent calving interval by 9 days (P<.05) and delayed the average calving date by 7 days (P<.05). Under the conditions of this study in which heifers were in condition score 5 or better at calving and bred by natural service, bull exposure early postpartum did not improve reproductive performance.
Number of Pages
2
Format
application/pdf
Language
en
Publisher
South Dakota State University
Rights
Copyright © 1992 South Dakota State University.
Recommended Citation
Goehring, T. B.; Miller, H. L.; Quinn, C. R.; and Quinn, R. L., "Effect of Bull Exposure on Reproductive Performance of First-Calf Heifers Bred by Natrual Service" (1992). South Dakota Beef Report, 1992. 13.
https://openprairie.sdstate.edu/sd_beefreport_1992/13