Studies on Trichloroethylene-Extracted Feeds: 8. The Relative Resistance of Avian Species to the Toxic Factor in Trichloroethylene-Extracted Soybean Oil Meal ,

Abstract

A CONSIDERABLE proportion of the soybean oil meal produced in the United States is used for feeding chickens and turkeys. If these species were highly susceptible to the factor present in certain specimens of trichloroethylene-extracted soybean oil meal (TCESOM) which induces aplastic anemia in the bovine (Stockman, 1916; Pritchard et al., 1952; Picken et al., 1952) and the horse (Pritchard et al., 1956), it would be expected that toxic effects would have been observed among commercial flocks of chickens and turkeys. Such effects have not been reported although it is known (Armstrong, 1952), for instance, that the total output of TCESOM of one extraction plant which produced specimens of TCESOM which are highly toxic to the bovine (Schultze et al., 1955) was used for commercial broiler and turkey production without apparent untoward effects. Eveleth and Goldsby (1953), however, observed an increased mortality among baby chicks fed for 50 days a …