We determined the effects of oxytocin (OT) and prostaglandin F2α analogue (PG) added to extended boar semen on duration artificial insemination (AI) reproductive performance pigs bred in July August (temperate climate Central Europe). Eighty gilts second parity sows (G+SP) sixty-four multiparous (M) were divided into three groups. Group OT (11 G+SP 37 M) group PG (20 28 artificially inseminated...

The objective was to investigate effects of progesterone (P4) dose on abundance luteinizing hormone receptor (LHCGR), aromatase (CYP19A1), 3β-hydroxysteroid dehydrogenase (HSD3B1), and other steroidogenic mRNA transcripts in granulosa cells from dominant follicles. Nellore heifers were assigned one six groups: new, first-use controlled internal drug release device (CIDR1) inserted for 5 days (L...