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 Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via Google Scholar Google Scholar Articles by Marlowe, T. J. Search for Related Content PubMed Articles by Marlowe, T. J.

A Comparison of the Growth Hormone Content of the Pituitary Glands from Dwarf and Normal Beef Calves

Virginia Agricultural Experiment Station, Blacksburg

Abstract

Pituitary glands from 30 dwarf and 30 normal calves were assayed for growth hormone content. A series of four assays was conducted with hypophysectomized, immature, female rats as the assay animals. Increase in width of the epiphyseal cartilage of the tibia was the measure of response.

Three of the four trials indicated that there was significantly less growth hormone, per unit of glandular powder, in the glands from dwarf calves than in those from normal calves (P<.01).

¹ The author wishes to express his appreciation to the Armour Laboratories, Chicago for the purified growth hormone used; to C. Y. Kramer and R. J. Fruend of the Department of Statistics; to personnel of the Computing Center for their assistance in the analysis of the data; and to several students who helped in collecting the materials and caring for the assay animals.