01125nam a2200229 a 450000100080000000500110000800800410001910000160006024501400007626000610021630000100027750000180028752004740030565000170077965000110079665000170080765300110082465300100083565300130084565300170085865300200087515159802012-08-31 1994 bl uuuu m 00u1 u #d1 aMACHADO, R. aEffects of prostaglandin F2alfa and norgestomet on estrus sychroniza-tion and fertility in postpartum beef cows.h[electronic resource] aUrbana: University of Illinois at Urbana-Champaignc1994 a123p. aTese Mestrado aThe objective of the present study is to evaluate the effect of pretreatment with PGF2alfa in postpartum beef cows submitted to a Syncro-Ma-te B program on calving rate. It is hypothesized that cyclic cows atluteal stages would undergo luteolysis, cyclic cows either at proestruor metestrus will be at early stage (< day 11) of estrus cycle at initiation of treatment and the Syncro-Mate B treatment will be capableto induce ovulation in those cows still in anestrus. areproduction aBovino aReprodução aBovine aEstro aOestrous aSicronizacao aSynchronization