oestrum
1.LH receptor mRNA levels from the right ovary of BB(0.42±0.02)ewes were significantly higher than those of AA(0.23±0.02)and AB(0.25±0.04)ewes(P<0.01),but was no significant difference in the left ovary among the genotypes during the oestrum was observed.
2.In order to study the appropriate technology of superovulation and embryo transfer of South Devon cattle,11 mature cows of South Devon and 9 Nanyangcows were selected as donors and recipients respectively,and the experiments of superovulation and embryo transfer in the system of CIDRFSH-PG were carried out. The results showed that all the donors were in oestrum at the appointed time.
