00498nam a2200145Ia 4500001000700000003000500007008004100012010001100053040000900064100002800073245012400101260004200225300001000267502007500277Z_4793CHAP220113s1983    xx            000 0 und d  a167846  cCHAP  aGarcía Winder, Miguel  aEndocrine mechanisms associated with suckling during the postpartum period in beef cows  /cpor  Miguel García Winder  aLincoln, Nebraska  :bEl autor,c1983  a84 h.  aThesis (Master of Science of Animal Science) -- University of Nebraska