Global gene expression in endometrium of high and low fertility heifers during the mid-luteal phase of the estrous cycle.

ABSTRACT:

Background

In both beef and dairy cattle, the majority of early embryo loss occurs within the first 14 days following insemination. During this time-period, embryos are completely dependent on their maternal uterine environment for development, growth and ultimately survival, therefore an optimum uterine environment is critical to their survival. The objective of this study was to investigate whether differences in endometrial gene expression during the mid-luteal phase of the estrous cycle exist between crossbred beef heifers ranked as either high (HF) or low fertility (LF) (following four rounds of artificial insemination (AI)) using the Affymetrix® 23 K Bovine Gene Chip.

Results

Conception rates for each of the four rounds of AI were within a normal range: 70-73.3%. Micro

SUBMITTER: Killeen AP 

PROVIDER: S-EPMC3986929 | biostudies-literature | 2014 Mar

REPOSITORIES: biostudies-literature