00625nam a2200193Ia 4500001000700000003000500007008004100012010001100053040000900064082001600073100004900089245008800138260006800226300000700294440000500301500003800306503001400344650007300358Z_4194CHAP220113s1990    xx            000 0 und d  a167257  cCHAP  a636.4082 C6  aCole, D                 J                  A  aControl of pig reproduction  /cby D. J. A Cole, G. X. Foxcroft and Barbara J. Weir  aCambridge  :bThe Journals of Reproduction and Fertility,c1990  av.  a  aLa biblioteca tiene : V. 2 y V. 3  a156614-15  aGanado porcinoxReproducción I. Foxcroft, G. T II. Weir, Barbara J