Identification and partial purification of serum growth hormone binding protein in domestic animal species

Article Abstract:

Sera from domestic animals were analyzed for the presence of growth hormone binding proteins (GHBP) to evaluate an assay testing for GHBP and to assess the activities of the various GHBPs in cattle, sheep, pigs, chickens, geese, humans and horses. GHBPs from chicken, sheep and pig sera were isolated, purified and partially characterized to compare their hormone affinities and biological activities. Results showed all the test organisms exhibited GHBP in their serum. Among the isolated and partially characterized GHBPs, binding proteins from pigs have the highest affinity for human growth hormone and those from sheep have the lowest affinity.

Carrier proteins, Transport proteins, Domestic animals

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Assessment of factors regulating serum growth hormone binding protein in pigs

Article Abstract:

Results of a series of experiments indicated that growth hormone binding proteins (GHBP) and GH receptor activity is regulated by similar factors. This is indicative of the common origin of GHBP and GH receptor. The influence of nutritional and physiological factors on GHBP activity in pigs' serum was also assessed. Long-term procine somatotrophin administration increased the GHBP levls. Fasting reduced liver GH receptor but had no significant influence on GHBP levels. Highest GHBP levels were reported by pregnant sows at the start of third trimester of pregnancy.

Research, Influence, Swine, Serum, Blood serum, Somatotropin, Fasting

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Symposium introduction: what should animal science departments be doing to address contemporary issues?

Article Abstract:

A symposium on the activities that Animal Science Departments have been doing to address contemporary issues in livestock and allied industries was sponsored by the ASAS Foundation and ELANCO. The symposium was inspired by the growing contentiousness of animal agriculture and the growing public perception that science cannot solve the problems. Specifically, the symposium was aimed at determining the efforts by animal scientists and Animal Science Departments in addressing contentious, contemporary issues in animal science.

Conferences, meetings and seminars, Livestock industry, Animal culture, Animal husbandry, Zoology

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