J. Anim Sci.
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J. Anim Sci. 1960. 19:902-909.
© 1960 American Society of Animal Science
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Soybean Oil Meal as a Protein Source for Successive Generations of Swine

H. S. Teague and E. A. Rutledge2

Ohio Agricultural Experiment Station,3, Wooster

Abstract

Groups of swine, confined to dry lot, were fed rations containing all-plant or plant and animal products through the farrow of fourth generation pigs. Supplemental protein was supplied in complete rations as either soybean oil meal or a combination of soybean oil meal and meat and bone scraps. A total of 755 pigs were farrowed during the three-year period.

Satisfactory performance was maintained on both ration treatments. Breeding performance, fetal weight at mid-gestation, lactation performance (including livability and growth of pigs to weaning) and growing-finishing performance did not appear to be effected by the type of ration fed.

The continuous feeding of rations containing both plant and animal products resulted in a highly significant increase in birth weight (P<0.01) and greater average vigor at birth in pigs farrowed by second and third generation females.

A high incidence of late prenatal death loss was observed in one group of second generation gilts fed all-plant rations. Second farrowing performance of the same females appeared normal in all respects.

From observations during the three-year period there apparently was no decline in performance either from ration treatment or as a result of continual confinement on concrete.

Footnotes

2 Present address: International Milling Co., Box 98 H.P. Station, Des Moines, Iowa.

3 Department of Animal Science.






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Copyright © 1960 by the American Society of Animal Science.