Simple Summary The economic sustainability of beef herds relies on achieving a reliable
percentage of weaned calves. Efforts to lift reproductive efficiency of beef herds have …

In cattle, the majority of embryo loss occurs very early during pregnancy (approximately Day
16), around or prior to maternal recognition of pregnancy. The actions of P4 in controlling LH …

3000 new references added since the first editionGives information necessary to produce
embryos totally through in vitro techniques Shows commercial applications of embryo and …

Prostaglandins impact on ovarian, uterine, placental, and pituitary function to regulate
reproduction in female livestock. They play important roles in ovulation, luteal function …

The focus of this review is maternal nutrition during the periconceptual period and offspring
developmental outcomes in beef cattle, with an emphasis on the first 50 d of gestation, which …

Hormonal interventions have been used to increase the probability of estrous detection and
insemination, and to increase pregnancy rates of dairy cattle under a variety of management …

Contents Early embryonic development, implantation and maintenance of a pregnancy are
critically dependent on an intact embryo‐maternal communication. So far, only few signals …

The objective was to determine the effects of bovine somatotropin (bST) and two artificial
insemination (AI) protocols on reproductive performance of Holstein cows. Lactating cows …

Reproductively normal crossbred beef heifers were individually offered a diet of barley straw
and concentrate supplemented with one of four levels of a fish oil (FO) enriched supplement …

The objective of this study was to evaluate the effect of equine chorionic gonadotropin (eCG)
administration associated to fixed-time AI (FTAI) on follicular dynamics, ovulation, corpus …