| Literature DB >> 10563239 |
S R Mathew1, W P McCaughey, A D Kennedy, N J Lewis, G H Crow.
Abstract
An automated heatmount detection system was employed to detect estrus for artificial insemination in 57 beef cows. First service conception rate was 84.2% and the pregnancy rate was 89.5% for a 42-day breeding season. Duration of estrus was 9.6 h, sx = 0.5 h and mounting activity was lowest during the dark part of the day.Entities:
Mesh：
Year: 1999 PMID： 10563239 PMCID： PMC1540007
Source DB: PubMed Journal: Can Vet J ISSN： 0008-5286 Impact factor: 1.008