HOME HELP FEEDBACK SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Trenkle, A. Search for Related Content PubMed PubMed Citation Articles by Trenkle, A.

Effect of Diet upon Levels of Plasma Growth Hormone in Sheep¹

Iowa State University of Science and Technology, Ames 50010²

Abstract

Two experiments were conducted with sheep fed diets containing hay or hay with grain to study the effect of feeding, fasting and plane of nutrition on concentrations of plasma growth hormone. Feeding or fasting for up to 72 hr. had no significant influence on plasma growth hormone, even though concentrations of blood glucose were depressed and plasma free fatty acids were elevated in the fasting animals. In one experiment, the sheep fed grain had slightly lower levels of plasma growth hormone; while in a second experiment, no significant differences in plasma growth hormone were found in sheep fed diets containing three levels of energy at two levels of intake. These results indicate that diet had no marked effect on the concentration of plasma growth hormone in sheep.

¹ Journal Paper No. J-6529 of the Iowa Agriculture and Home Economics Experiment Station, Ames. Project No. 1208. This work was supported in part by U.S.P.H.S. Grant AM-9227 and by the Iowa State University Research Foundation.

² Department of Animal Science.