publication . Article . 2016

Selection for stress responsiveness and slaughter stress affect flesh quality in pan-size rainbow trout, Oncorhynchus mykiss

Lefèvre, Florence; Cos, Isabelle; Pottinger, Tom G.; Bugeon, Jérôme;
Open Access
  • Published: 01 Nov 2016 Journal: Aquaculture, volume 464, pages 654-664 (issn: 0044-8486, Copyright policy)
  • Publisher: Elsevier BV
Abstract
Abstract The control of slaughter stress is of importance with regard to both fish welfare and flesh quality. Muscle characteristics and instrumentally measured quality parameters were determined in rainbow trout lines selected for high-responsiveness (HR) or low-responsiveness (LR) of plasma cortisol to an acute confinement stressor. Measurements were made in both unstressed and stressed fish (a 15 min period of confinement before slaughter) from both lines. Compared to LR fish, HR fish were smaller, had a slightly higher condition factor, lower fat-meter-values, and higher carcass yield. No difference between the lines was observed for muscle pH, either at sla...
Subjects
Medical Subject Headings: food and beveragesanimal diseasesanimal structures
free text keywords: Zoology, Biology and Microbiology, Aquatic Science, Flesh, Trout, biology.organism_classification, biology, Stress effects, Dry matter, Fishery, Fillet (mechanics), Mechanical resistance, Aquaculture, business.industry, business, Rainbow trout, flesh quality, stress, muscle fiber, texture, cortisol, [SDV]Life Sciences [q-bio]
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publication . Article . 2016

Selection for stress responsiveness and slaughter stress affect flesh quality in pan-size rainbow trout, Oncorhynchus mykiss

Lefèvre, Florence; Cos, Isabelle; Pottinger, Tom G.; Bugeon, Jérôme;