J. Anim Sci.
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J. Anim Sci. 1963. 22:121-124.
© 1963 American Society of Animal Science
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Intestinal Lactase, Alkaline and Acid Phosphatase in the Swine Fetus and Newborn Pig1

J. I. Sprague2, D. E. Ullrey, D. G. Waddill3, E. R. Miller, C. L. Zutaut and J. A. Hoefer

Michigan State University, East Lansing4

Abstract

Fifty-seven fetuses or newborn pigs were obtained from 19 Yorkshire first-litter gilts for assay of the gastrointestinal concentration of lactase and alkaline and acid phosphatase. The fetuses were obtained by Caesarian section at 30, 51, 72 and 93 days post-breeding. The newborn pigs were taken immediately at birth and were not allowed to nurse.

None of the enzymes studied were found in the stomach or colon and rectum. In general, at 72 and 93 days post-breeding and at birth the cranial and middle sections of the jejunum-ileum exhibited greater enzyme activity, expressed per unit of dry tissue, than other portions of the small intestine.

Enzyme concentration per unit of dry tissue was significantly greater at birth than at any fetal age. Alkaline phosphatase concentration at 93 days post-breeding was significantly greater than at any earlier fetal period.

Footnotes

1 Published with the approval of the Director of the Michigan Agricultural Experiment Station as Journal Article No. 3010.

2 Present address: Department of Animal Science, Colorado State University, Fort Collins, Colorado.

3 Present address: Department of Agriculture, Chico State College, Chico, California.

4 Department of Animal Husbandry. Appreciation is expressed for the assistance of R. W. Van Pelt and G. H. Conner of the Department of Surgery and Medicine in performing the Caesarian sections.






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Copyright © 1963 by the American Society of Animal Science.