Abstract
JUKES (1940a, b) found 25 to 40 percent of soybean oil meal to be a satisfactory source of choline for the prevention of perosis. The amount of total choline in soybean oil meal as given by Engel (1942) is sufficient to satisfy the chick’s requirement for choline, if the total choline were available. Berry et al. (1943) have presented data indicating the lack of an adequate amount of available choline for rapid growth in rations containing approximately one-third soybean oil meal. In studies on whey solubles, choline was the limiting factor in the rations used. Jukes (1942) used expeller processed soybean oil meal. Communication with the processor indicates that the soybean oil settlings or “foots” were added back to the meal at the time that Jukes obtained his meal. The settlings from soybean oil are known to be rich in lecithin, from which choline is derived (Record and Bethke, 1942). .
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