The effect of eCG or estradiol at or after norgestomet removal on follicular dynamics, estrus and ovulation in early post-partum beef cows nursing calves

Author： Duffy P.   Crowe M.A.   Austin E.J.   Mihm M.   Boland M.P.   Roche J.F.  

Publisher： Elsevier

ISSN： 0093-691X

Source： Theriogenology, Vol.61, Iss.4, 2004-02, pp. : 725-734

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