Wild Atlantic salmon Salmo salar L. strains have greater growth potential than a domesticated strain selected for fast growth
作者： L. Neregrd , L. Sundt-Hansen , K. Hindar , S. Einum , J. I. Johnsson
DOI: 10.1111/J.1095-8649.2008.01907.X
关键词:
摘要: A study was undertaken to examine the responses of three Atlantic salmon Salmo salar strains growth hormone (GH) treatment. positive response sustained-release GH implants found in two wild (Namsen and Imsa) as well one domesticated strain (AquaGen). The data revealed that growth-selected AquaGen has further potential, however, a stronger observed which outgrew after These observations suggest some potential may have been lost during selection for rapid strain. In September, parr were implanted December sampled plasma insulin-like factor I (IGF-I) levels, liver, muscle gill receptor, IGF-I mRNA Na+,K+-ATPase activity, liver lipid content body silvering. Low temperature seasonal cessation probably explains relatively limited effects found. Body silvering all positively correlated size. increased levels Namsen inspite being lower GH-treated fish.
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