Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-27T20:43:03.787Z Has data issue: false hasContentIssue false

A note on the effect of bovine somatotrophic hormone on wool production in growing lambs

Published online by Cambridge University Press:  02 September 2010

Barbara Reklewska
Affiliation:
Institute of Animal Breeding and Technology of Animal Production, The Agricultural University, Warsaw, Poland
Get access

Summary

In two experiments carried out on 36 crossbred growing lambs the effect of purified bovine somatotrophic hormone (STH) on wool production and some qualitative fleece characters was studied. Food intake during and after the hormonal treatment was also examined. STH, injected in a dose of 1 mg/kg of body weight in 10- or 15-day intervals to growing lambs from 2 to 100 days of age, increased fleece weight significantly. This increase was accompanied by considerably higher daily food intake both during the hormonal treatment and 15 weeks after cessation of STH injections. No significant effect of STH on qualitative fleece characters was found.

Type
Research Article
Copyright
Copyright © British Society of Animal Science 1974

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Chapman, R. E. and Young, S. S. Y. 1957. Study of wool production per unit of skin in Australian Merino sheep. Aust. J. Agric. Res. 8: 723732.CrossRefGoogle Scholar
Downes, A. M. and Wallace, A. L. C. 1965. Local effects on wool growth of intradermal injections of hormones. In Biology of the Skin and Hair Growth (ed. Lyne, A. G. and Short, B. F.), pp. 679704. Angus and Robertson, Sydney.Google Scholar
Ferguson, K. A., Wallace, A. L. C. and Lindner, H. R. 1965. Hormonal regulation of wool growth. In Biology of the Skin and Hair Growth (ed. Lyne, A. G. and Short, B. F.), pp. 655677. Angus and Robertson, Sydney.Google Scholar
Kaciuba-Uscilko, H., Reklewska, B., Kochman, K. and Krasicka, B. 1969. [Determination of thyrotropic activity in native preparation STH (before and after its purification).] Endokr. Pol. XX: 4551.Google Scholar
Labban, F. M. 1957. The effect of growth hormone on wool follicles. J. agric. Set, Camb. 49: 1925.CrossRefGoogle Scholar
Reklewska, B. and Kaciuba-Uscilko, H. 1971. [The effect of thyroxine and somatotrophine on fleece weight, body weight and food consumption in growing lambs.] Roczn. Nauk Roln. B 93: 2735.Google Scholar
Skoczylas, A. 1961. Crossbred wool. Method of evaluation. Thesis, Agricultural University in Warsaw.Google Scholar
Wheatley, I. S., Wallace, A. L. C. and Bassett, J. M. 1966. Metabolic effects of ovine growth hormone in sheep. J. Endocr. 35: 341353.CrossRefGoogle ScholarPubMed