7Findlay J K. An update on the roles of inhibin,activins and follistatin as local regular of folliculogenesis[J].Bio Reprod, 1993,48:15～23.
8Mather J P,Woodruff T K. Paracrine regular on reproductive function by inhibin and activin[J].Bio Med,1992,201(1):1.
9Novero R P,Beck M M,Gleaves E W.Plasma progeslerone,Luleinizing hormone concerntrations and granulose cell responsiveness in heat-stressed hens[J].Poultry Science,1991,70(11):2335～2339.
