Pmsg Response in Ewes of Different Breeding Value for Reproductive Rate as an Aid to Selection

نویسنده

  • W. M. C. MAXWELL
چکیده

One hundred and fifty ewes with lifetime records of ovulation rate and lambing were divided into two groups on the basis of age, live weight and reproduction index (calculated from reproductive performance data). Both groups were synchronised in oestrus with progestagen sponges inserted for 14 days. At sponge removal one group received no PMSG while the other group received 400 i.u. PMSG. Eight days after sponge removal, the ovaries of all ewes were examined at laparoscopy.

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تاریخ انتشار 1999