Relation of concentration of growth hormone in blood plasma to growth rate and carcass characteristics in the pig

Author:

Chappel R. J.,Dunkin A. C.

Abstract

SUMMARY1. Pig growth hormone (PGH) concentrations were measured in plasma samples from piglets of 3–4 to 7–8 weeks of age.2. Plasma PGH concentrations decreased significantly with age. No difference was observed between the hormone concentrations of gilts and barrows.3. Correlation coefficients were calculated between mean plasma growth hormone concentration over a 4-week period and several carcass characteristics and measures of growth rate. Plasma PGH over this period showed significant negative correlations with several measures of carcass backfat thickness at bacon weight. In barrows only, PGH concentrations showed a significant direct correlation with relative growth rate from 3 to 7 weeks.

Publisher

Cambridge University Press (CUP)

Subject

Animal Science and Zoology

Reference22 articles.

1. Effect of porcine growth hormone and antisera on swine weighing 72 kilograms initially. II. Carcass composition;Lind;J. Anim. Sci.,1968

2. The regulation of growth hormone secretion;Glick;Recent Prog. Horm. Res.,1965

3. The prediction of lean percentage of pigs of bacon weight from carcass measurements

4. Use of activated charcoal in the radioimmunoassay of human growth hormone in plasma

5. Serum Growth Hormone Levels of Pigs Fed Diethylstilbestrol Plus Methyltestosterone between 23 and 90 Kilograms

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