Effect of somatotropin on nonesterified fatty acid and glycerol metabolism in growing pigs
Article Abstract:
Nonesterified fatty acid (NEFA) and glycerol kinetics in pigs administered with porcine somatotropin (pST) were evaluated to find out the effect of the hormone on fatty acid metabolism. Analysis of the uptake of infused tritium-marked glycerol and oleic acid revealed that a growing pig's lipid catabolism is very low indicating that the pig is in a lipogenic stage. Lipolysis and NEFA kinetics increased with the administration of pST, but not by a considerble amount. Other mechanisms beside lipolysis and NEFA kinetics may be responsible for the reduction of fat accumulation during pST treatment.
Publication Name: Journal of Animal Science
Subject: Zoology and wildlife conservation
ISSN: 0021-8812
Year: 1992
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Temporal response of circulating metabolites and hormones during somatotropin treatment of growing pigs
Article Abstract:
The effect of porcine somatotropin (pST) on plasma glucose, insulin, glycerol, nonesterified fatty acids (NEFA) and plasma urea nitrogen (PUN) concentrations was examined. Analysis of blood from pigs receiving intramuscular pST injections revealed that transient hyperglycemia and hyperinsulinemia occurs after injection. Glycerol and NEFA exhibited temporary elevation of concentration, but PUN showed reduced levels. This pattern in the blood metabolite concentrations could be explained by the reduced metabolic activities illicited by pST, which also resulted in the reduction of food intake.
Publication Name: Journal of Animal Science
Subject: Zoology and wildlife conservation
ISSN: 0021-8812
Year: 1992
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Effect of porcine somatotropin on in vivo glucose kinetics and lipogenesis in growing pigs
Article Abstract:
The influence of porcine somatotropin (pST) on the rate of in vivo lipogenesis and glucose kinetics in growing pigs was evaluated by testing for these physiological processes in animals injected with the hormone. Treatment with pST decreases both the inclusion of glucose in fat tissues and the accumulation of fat. This is due to the reduction of lipogenesis, particularly the production of new triglycerides. On the other hand, exogenous insulin heightened the lipogenesis rate by around 50%.
Publication Name: Journal of Animal Science
Subject: Zoology and wildlife conservation
ISSN: 0021-8812
Year: 1992
User Contributions:
Comment about this article or add new information about this topic:
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