A Five-Day Progesterone Plus eCG-Based Fixed-Time AI Protocol Improves Fertility Over Spontaneous Estrus in High-Producing Dairy Cows Under Heat Stress
This study compared the efficiency of a five-day or standard (nine-day) progesterone-based regimen combined with equine chorionic gonadotrophin (eCG) in a fixed-time AI (FTAI) protocol for dairy cows. The data examined were derived from 3577 inseminations conducted in three dairy herds. Animals wit...
| Main Authors: | , , , |
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| Format: | Online |
| Language: | English |
| Published: |
The Society for Reproduction and Development
2013
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| Online Access: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3934145/ |