Influence of polygamous versus monogamous mating on embryo production in four different strains of mice after superovulatory treatment

We determined the effect of monogamous or polygamous mating with 2 females on vaginal plug (VP) rate, embryo donors (ED), 2-cell embryo production, and male performance after superovulation of females aging 24d or 45-48d. C57BL/6NCrl (B6N), BALB/cAnCrl (BALB/cN), FVB/NCrl (FVB/N), and Crl:CD1(ICR) (CD-1) females received 5 IU eCG and 5 IU hCG (24d) or 7.5 IU eCG and 7.5 IU hCG (45-48d) 48  h apart. After the hCG injection, females were paired with males, which alternated weekly in monogamous or polygamous mating.

Source: Theriogenology - March 17, 2018 Category: Genetics & Stem Cells Authors: Malte Heykants, Hagen Scherb, Geert Michel, Esther Mahabir Source Type: research