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Relative proportions of the sexes in litters of pigs


Author:
Rommel, George McCullough, United States Bureau of Animal Industry, and United States Department of Agriculture
Source:
Circular (United States. Bureau of Animal Industry) ; no. 112 1907
Year:
1907
Subject:
Swine -- Breeding and Animal culture
Format:
1 page ; 24 cm.
Publisher:
U.S. Dept. of Agriculture, Bureau of Animal Industry
Collection:
Organic Roots Collection