Impact of Corpus Luteum Morphology and Progesterone Levels on Pregnancy Outcomes in Embryo Transferred Cows
DOI:
https://doi.org/10.48165/ijar.2025.46.04.11Keywords:
Corpus luteum, Embryo transfer, Pregnancy rate, ProgesteroneAbstract
The corpus luteum size, shape, and echotexture were assessed by transrectal ultrasonography on day seven after synchro nized estrus in twenty recipient cows. The compact corpus luteum was observed in 13 (65%) cows, while the vacuolated corpus luteum was observed in 7 (35%) cows. The pregnancy rate with compact and vacuolated corpus luteum was 7.69 and 57.14 %, respectively, and was found statistically significant at (p<0.05) between the compact and vacuolated corpus luteum. The mean serum progesterone level (ng/ml) on the 7th day after estrus in pregnant and non-pregnant embryo transferred recipient cows was 10.66±1.07 and 8.9±0.46, respectively. There was no positive correlation found between corpus luteum diameter and progesterone in pregnant and non-pregnant groups. In conclusion, the type of corpus luteum significantly influences pregnancy rates in embryo-transferred recipient cows.References
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