000 00254nam a2200085Ia 4500
008 130123s9999 xx 000 0 und d
082 _a636
245 _aAnimal Breeding Abstracts Vol. 49 , No.1-3 , 6-12
260 _aOxon
_bCAB International Wallingford
_c1981
999 _c81868
_d81868