ISSN:
1573-5168
Keywords:
salmonids
;
body weight
;
radioimmunoassays
;
insulin
;
glucagon
;
glucagon-like peptide
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Plasma levels of insulin in rainbow trout,Oncorhynchus mykiss, Atlantic salmon,Salmo salar, and Pacific coho salmon,Oncorhynchus kisutch and plasma circulating levels of glucagon and glucagon-like peptide, in rainbow trout and Atlantic salmon, were measured by homologous radioimmunoassays. Hormonal levels were compared against the average body weight of the same group of fish. Plasma insulin levels were significantly correlated (r=0.56, 0.46 and 0.42 respectively) with body weight in all three salmonid species. Moreover, rainbow trout from fast-growing families had significantly higher (p〈0.005) plasma insulin levels than did fish from slow-growing families. Plasma titres of glucagon and glucagon-like peptide were always lower than insulin titres and did not correlate with body weight.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02265143
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