Changes in rumen temperature, vaginal temperature and drinking behaviour throughout the estrous cycle in tie-stalled dairy cattle
Loading...
Date
2000-10-01T00:00:00Z
Authors
Mathew, Suzan R.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The relationship between vaginal temperature, rumen temperature and drinking behaviour throughout the estrous cycle was studied in tie-stalled dairy cattle. In experiment 1, 4 first calf Holstein dairy heifers (71 to 161 d postpartum) were monitored for a continuous 3 month period. The heifers were synchronized using a program called Ovsynch. The heifers were synchronized for estrous cycles 1 and 3, while estrous cycle 2 was not synchronized. Milk progesterone analysis indicated 13 periods of low progesterone indicative of CL regression in experiment 1, of which vaginal temperature data (VagT) was available for 8 periods and rumen temperature (RumT) was available for 7 periods. (Abstract shortened by UMI.)