00544     2200181   4500001002100000005001500021008004100036035001900077041000700096082001800103090001800121100001700139245006800156250000600224260004500230300004200275650004500317INLIS00000000000329720210519133622210519|||||||||   |   |||   |||| ||   |   0010-0521003297  aen0 a636.083/NIC/l  a636.083/NIC/l0 aJ.E. Nichols00aLivestock Improvement: in relatioin to heredity and environment  a4  a[SL]bThe iowa state collage pressc1957  aIX, 240 p.: ill.; ref. 22 cm + Indexs 0aLIVESTOCK -- INVIRONMENT -- PROGENY TEST