Table 1. Sexual behaviour and ovulation of WT and ΔN-Zfp36l2 homozygous females in the C57BL/6NTac strain upon superovulation.

Genotype	Vaginal Plugs	Total ova	Ova/female
WT (n = 9) a	7	170	24
ΔN-Zfp36l2 (n = 9) a	6	86	14

^aAdult females (5–8 weeks-old) were subjected to exogenous hormone injections to induce superovulation, according to standard procedures [48], and then mated with WT males. The next morning, vaginal plugs were checked and in vivo fertilized ova were recovered from the swollen ampulla 17–19 hours after hCG injection.