The effect of embryonic death
rates in cattle on the efficacy of estrous synchronization programs.
Mean early embryonic death rates in groups B, P and H in all three storage periods were 25.10%, 21.90% and 27.30%, respectively.
Storage material did not have any effect on rates of early and late embryonic death. As a result of extended storage period, death rates in both periods increased as the early and the late embryonic mortalities increased because of water loss and albumen degradation during storage.
The present study revealed that perlite did not influence the early or late embryonic death rate but had an increasing effect on hatchability of quail eggs, in three storage periods.
Keywords: Pheasant, egg shell color, fertility, embryonic death rate.
They also reported that embryonic death rate was 18.73% of total eggs.
Abortion and weak lambs are major contributors to reduced lamb numbers but early embryonic death
will show as an increased number of barren ewes detected at scanning.
Cyclic and pathologic changes of the mare endometrium as detected by biopsy, with a note on early embryonic death
The infection can lead to early embryonic death
, infertility and abortion.
All embryonic deaths
occurred in the synchronized cows with ovulatory follicles less than or equal to 11 mm.
The effects of BVD in a herd include: Reduced conception rates and increased embryonic deaths
leading to high numbers of barrens; protracted calving periods; abortions; stillbirths; deformed and weak calves; mucosal disease.