TY - BOOK ED - Biennial Symposium on Animal Reproduction ( TI - (Proceedings) T2 - J. of Animal Sci. v.32, 1971. Sup. I PY - 1971/// CY - Champaign, Ill. PB - American Society of Animal Science KW - Ganadería KW - Congresos KW - Ganado KW - Reproducción ER -