Trial Overview:
This trial evaluated Angus heifers grazing fescue pasture, comparing control and AP-5 groups under identical environmental conditions. The objective was to measure the effect of AP-5 on body temperature and reproductive performance.
All cattle had equal access to pasture, shade, and water, allowing for a direct comparison of treatment effects.
Cattle Evaluated For:
Feeding Rate:
Trial Type:
Environment:
Duration:
Controlled heifer trial evaluating the impact of AP-5 on thermoregulation and reproductive performance under fescue conditions.
Based on a direct comparison measuring rectal temperature and first-service conception rates in Angus heifers.
Body Temp
Reduction in rectal temperature vs control
Conception
Increase in overall conception rate
First Service
Compared to 54% in control group
Heifers
Equal group size for direct comparison
Angus heifer breeding and temperature comparison
| Metric | Control | AP-5 |
|---|---|---|
| # of Heifers | 26 | 26 |
| Rectal Temperature | 103.5°F | 102.1°F |
| Temperature Change | — | –1.4°F |
| Conception Rate | 14/26 | 18/26 |
| 1st Service A.I. | 54% | 69% |
| Improvement | — | +15% |
AP-5 reduced body temperature and improved conception rates under identical pasture conditions.
Lower body temperature was associated with improved conception rates
AP-5 reduced body temperature by 1.4°F and increased conception rate by 15%.
AP-5 reduced body temperature while improving reproductive performance in Angus heifers under fescue conditions.
With both groups managed under identical pasture, shade, and water conditions, the observed differences indicate a direct effect of AP-5 on thermoregulation and breeding efficiency.
This trial demonstrates a direct relationship between lower body temperature and improved conception.
Reduced body temperature was associated with improved conception rates in this controlled comparison.
AP-5 improved conception rates while reducing body temperature in heifers grazing fescue pasture under controlled conditions.