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Effect of hyperalimentation on body composition in swine
M D Newcomb1, R S Ott, T van Kempen
1Department of Animal Sciences, University of Illinois, Urbana 61801.
Journal of Animal Science
|January 1, 1993
Summary
Surgical cannulation did not impact pig growth or feed intake, but hyperalimentation (increased feeding) boosted daily gain while reducing protein deposition and increasing fat deposition in growing pigs.
Area of Science:
- Animal Science
- Nutritional Physiology
- Swine Production
Background:
- Cannulation techniques are crucial for studying nutrient utilization in livestock.
- Understanding the impact of altered feeding strategies on swine performance is vital for optimizing production.
Purpose of the Study:
- To investigate the effects of gastric cannulation and hyperalimentation on the performance and body composition of growing pigs.
- To determine if surgical cannulation affects feed intake, growth, or carcass characteristics.
- To assess the impact of increased nutrient intake on pig growth and body composition.
Main Methods:
- Fifty growing pigs were utilized across two experiments.
- Surgical implantation of a cannula into the greater curvature of the stomach was performed.
- Hyperalimentation involved feeding pigs approximately 120% of the control intake.
Main Results:
- Cannulation did not significantly reduce voluntary feed intake, daily gain, feed efficiency, or carcass protein and fat deposition.
- Hyperalimentation led to a significant increase in daily gain.
- Hyperalimentation resulted in decreased protein deposition and a tendency towards increased fat deposition.
Conclusions:
- Gastric cannulation is a viable method for studying swine nutrition without negatively impacting performance or body composition.
- Hyperalimentation enhances growth performance in pigs but alters body composition by reducing protein and increasing fat deposition.