权威例句
Insemination of heifers with sexed spermPattern of growth of dominant follicles during the oestrous cycle of heifers.Reduction of fertility and alteration of uterine pH in heifers fed excess ruminally degradable protein.Ovarian follicular dynamics during the estrous cycle in heifers monitored by real-time ultrasonography.Fertilization and early embryonic development in heifers and lactating cows in summer and lactating and dry cows in winter.Development of nonovulatory antral follicles in heifers: changes in steroids in follicular fluid and receptors for gonadotropins.Pregnancy rates per artificial insemination for cows and heifers inseminated at a synchronized ovulation or synchronized estrusAssociation between the duration of dominance of the ovulatory follicle and pregnancy rate in beef heifers.Association between surges of follicle-stimulating hormone and the emergence of follicular waves in heifersAn evaluation of tenderness of the longissimus muscle of Angus by Hereford versus Brahman crossbred heifers.