Uterine asynchrony: a cause of embryonic loss.

摘要: During early gestation, hormonal events associated with corpora lutea formation and embryonic synthesis of proteins, prostaglandins, steroids result in release endometrial secretory products into the uterine lumen. The embryo, inherently response to uterus, develops grows. However, considerable mortality occurs when secretions become altered such a manner that they are asynchronous developing embryo. Factors advance or retard development uterus embryo have been utilized document utero-embryonic asynchrony, it has observed will not "wait" for embryos synchronous. reverse is possible: can be accelerated decelerated. Furthermore within localized areas might also exist favor some at expense others. This review consider causes asynchrony offer models loss an environment cattle, sheep, swine.