They had the animal neutered some seven years back.

他们约在七年之前将这家畜。

It is suggested that both Gukang and estrogen can similarly increase BMC and BMD of tuberositas tibiae in ovaricetomized rats,and the changes in BMC and BMD are alike.

提示骨尔雌醇均显著提高鼠胫骨干骺端处的BMCBMD，二者作用相当，且BMCBMD的变化较一致。