J. Anim Sci.
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J. Anim Sci. 1983. 57:413-417.
© 1983 American Society of Animal Science
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The Effect of Gastric Loads of Sugars and Amino Acids on Milk Intake of Suckling Pigs1

Katherine A. Houpt2, T. Richard Houpt2 and Wilson G. Pond3

Cornell University, Ithaca, NY 14853 and and US Department of Agriculture, Clay Center, NE 68933

Abstract

A 3 h fast of suckling pigs less than a week of age decreased plasma glucose (P<.005), but did not affect plasma protein, osmolality or hematocrit. After fasting, solutions (40 ml/kg body weight) of 5% glucose, 5% fructose, 5% xylose, 5% mannitol, 5% sorbitol, 2.5% leucine, 2.5% phenylalanine (50 ml/kg), .9% NaCl, 5% lactose, 5% sucrose and a 50% egg yolk-distilled water mixture were administered by stomach tube and the piglet then returned to the sow. Weight gain was used as a measure of sow's milk intake. Milk consumption during the first 3 h after fasting was lower (P<.05) for pigs given glucose than for sham-loaded controls, but no differences were observed between glucose and mannitol or sorbitol for the same period. Mannitol and sorbitol were more effective than NaCl (P<.01) in lowering consumption for the 3 h after loading. Also during the first hour after loading, xylose caused lower (P<.001) food intake than glucose. Egg yolk suppressed intake in comparison to sham-loaded controls (P<.05). D-phenylalanine suppressed intake more than L-phenylalanine (P<.05), but no differences were observed between the D and L isomers of leucine.

Footnotes

1 The authors gratefully acknowledge the statistical assistance of Michael MacNeil.

2 New York State College of Vet. Med.

3 Roman L. Hruska U.S. Meat Animal Research Center.






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Copyright © 1983 by the American Society of Animal Science.