Abstracts - faqs.org

Abstracts

Zoology and wildlife conservation

Search abstracts:
Abstracts » Zoology and wildlife conservation

Hematological profiles in dairy cows treated with recombinant bovine somatotropin

Article Abstract:

Treatment of cows with recombinant bovine somatotropin (bST) decreased hematocrit and influenced leukocyte fractions. Eosinophil and lymphocyte fractions were significantly decreased, although the absolute leukocyte count was not affected. Milk yield was increased by BST treatment, with the largest increase coinciding with the periods when hematocrit was affected greatest. Blood levels of insulin-like growth factor-I were higher in bST-treated cows, and are thought to be partially responsible for the leukocyte effects. These bST effects were found to transient.

Author: Elsasser, T.H., Burton, J.L., McBride, B.W., Kennedy, B.W., Burton, J.H., Woodward, B.
Publisher: American Society of Animal Science
Publication Name: Journal of Animal Science
Subject: Zoology and wildlife conservation
ISSN: 0021-8812
Year: 1992
Physiological aspects, Hematology, Dairy cattle

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA


Effect of prepartum administration of growth hormone-releasing factor on somatotropin, insulin-like growth factory I, milk production and postpartum return to ovarian activity in primiparous beef heifers

Article Abstract:

The administration of growth hormone-releasing factor (GRF) or an analogue called GRF(1-29)-NH2 (GRFa) before parturition increased serum levels of somatotropin. Treated heifers lost more body weight during early lactation, and had a longer postpartum interval to ovarian activity. The serum level of insulin-like growth factor was inversely related to the length of postpartum anestrus. Milk production and calf weaning weights were not affected by GRF or GRFa administration.

Author: Armstrong, J.D., Simpson, R.B., Harvey, R.W.
Publisher: American Society of Animal Science
Publication Name: Journal of Animal Science
Subject: Zoology and wildlife conservation
ISSN: 0021-8812
Year: 1992
Cattle, Animal reproduction, Somatotropin releasing hormone, Somatotropin-releasing hormone, Heifers

User Contributions:

Comment about this article or add new information about this topic:

CAPTCHA



Subjects list: Research, Somatotropin, Insulin-like growth factor 1, Insulin-like growth factor I
Similar abstracts:
  • Abstracts: Methylation of histone H3 lysine 9 creates a binding site for HP1 proteins. Rb targets histone H3 methylation and HP1 to promoters
  • Abstracts: Biologists flock to 'evo-devo' in a quest to read the recipes of life. Biologists call for tracking as mammal numbers dive
  • Abstracts: Conformational variations in an infectious protein determine prion strain differences. Conformational diversity in a yeast prion dictates its seeding specificity
  • Abstracts: German professors appeal their dismissals in purge of thousands with ties to Stasi. Post-war ideals trip over modern reality: Pressures are mounting to bring in radical reforms to German universities to reduce bureaucracy and give a boost to scientific research
  • Abstracts: 800 actors in search of a strategy. British scientists in 'last chance' appeal. Britain cheers and jeers at a status quo White Paper
This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.
Some parts © 2025 Advameg, Inc.