7Stancic B, Gagrcin M, Grafenav P. Synchomnization of estms and ertility ingults treated with regumate[J]. Veterinarsli Glasnik, 1998, 52(718): 395 - 401.
8Cunningham M B, Pope W F. Effects of exogenous testosterone on follicular responsiveness to gonadotrophins during the luteal phase of the estrous cycle ingihs. Special Circular-ohio Agriculture Research and Development Center. 1999 NO. 164:52 - 55.
9Cardenas H, Herrick J R, Pope W F. Increased ovulation rate ingilts treated with dihydrotestosterone. Reprodution(Cambridge), 2002,123 (4): 527 - 533.
10Iwamura S , Sone M, Kawarasaki T. Precocious estrus and reproductive ability induced by PG600 in prepuberal gilts[J]. Journal of Veterinary Medical Science, 1999,61 ( 1 ) :7-11.
