Development of techniques for improvement of disease resistance using transcript levels of gastrointestinal hormones as an indicator for health examination in chum salmon fry

2014 Fiscal Year Final Research Report

• Project/Area Number: 24580287
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: General fisheries
• Research Institution: Hokkaido Research Organization
• Principal Investigator: MIZUNO Shinya 地方独立行政法人北海道立総合研究機構, その他部局等, 研究員 (70442655)
• Co-Investigator(Renkei-kenkyūsha): HATAKEYAMA Makoto 北海道立総合研究機構さけます, 内水面水産試験場 (80442656)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: サケ / コレシストキニン / 細菌性鰓病 / 亜麻仁油 / 脳

Outline of Final Research Achievements

This study showed that transcript level of brain cholecystokinin L-type was an indicator to predict appearance of bacterial gill disease in chum salmon fry. The cholecystokinin analysis revealed that there were no signs for crisis of bacterial gill disease in the fry of 10 hatcheries which were selected at random in Hokkaido. It was suggested that outbreak of bacterial gill disease was suppressed by daily supply of formula feed supplemented with linseed oil for a week and over.

Free Research Field

水産増殖学