Am. Soc. Anim. Prod.
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Am. Soc. Anim. Prod. 1935:123-126
© 1935 American Society of Animal Science
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Soybean Oil Meals Prepared at Different Temperatures as Feed for Pigs1

J. W. Hayward, G. Bohstedt and J. M. Fargo

University of Wisconsin

Abstract

Investigators have found it possible by application of the proper amount of heat (cooking or toasting) to definitely improve the growth promoting properties of soy beans when fed in rations of pigs and white rats (1, 2). It is known that in the various commercial plants, heat is applied to the soybean to facilitate the extraction of the oil. The product remaining after three-fourths or more of the oil has been removed is finely ground and placed on the market as soybean oil meal.

In our experiments we are attempting to determine the effect that the temperature of oil extraction has upon the relative efficiency of the protein of soybean oil meal. We have conducted our feeding tests with animals that are considered critical (the rat, chicken and pig). It was decided at the beginning of these experiments that in order to make any kind of an intelligent study of these various commercial kinds of soybean oil meals it would be necessary to use material of which we had a complete history, as to its preparation. The commercial companies, with whom we dealt directly, welcomed this idea and made it possible for one of us (J.W.H.) to be on hand to obtain all temperature records when our experimental material was produced. Table 1 gives the temperature history of these meals. The underlined figures denote the temperature reading which we have associated with each respective sample of meal as a means of identification other than the sample number.

Footnotes

1 This work was conducted under a research fellowship fund supplied by Allied Mills, Inc., Chicago, Ill.






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Copyright © 1935 by the American Society of Animal Science.