The connective tissues of fish.

Lavéty, J.; Afolabi, Olajide Joseph; Love, R. M.

doi:10.1111/j.1365-2621.1988.tb00546.x

Cited by 87 publications

(12 citation statements)

References 11 publications

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“…Although growth rate appears to have little influence on gaping and shear forces , seasonal changes in flesh quality are possibly related to changes in muscle pH (Lavety et al 1988), collagen content Hagen et al 2007) and size (Love 1975;Veland and Torrissen 1999). For turbot it has been shown that both pre mortem stress or anaerobic muscle activity caused by electrical stimulation has very little impact on the flesh quality (Ruff et al 2002a;Morzel et al 2003;Roth et al 2007a).…”

Section: Introductionmentioning

confidence: 99%

“…It is generally accepted that the flesh quality of fish is influenced by many factors such as stress (Boggess et al 1973;Kiessling et al 2004;Azam et al 1989), feeding regime and season (Lavety et al 1988;Morkore and Rorvik 2001;Love 1975;Espe et al 2004;Hagen et al 2007). Electric trial stimulation is becoming more widely used to fatigue the muscles in fish in order to gain more understanding how anaerobic muscle activity affects the flesh quality for species like Chinook salmon (Oncorhynchus tshawytscha) (Fletcher et al 1997;Jerrett et al 1996, rainbow trout (Oncorhynchus mykiss) (Robb et al 2000) and Atlantic salmon (Salmo salar) (Roth et al 2006(Roth et al , 2008.…”

Section: Introductionmentioning

confidence: 99%

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The influence of anaerobic muscle activity, maturation and season on the flesh quality of farmed turbot

et al. 2009

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In order to test seasonal, rearing, maturing and anaerobic muscle activity effect on the flesh quality of turbot (Scophthalmus maximus) a total of 80 farmed turbot from three different strains from reared under natural or continuous light were killed by a percussive blow to the head in November (winter, Icelandic strain), March (spring, Portuguese strain) and June (summer, domesticated strain (France turbot)). To test the effect of anaerobic muscle activity, 10 fish were on each occasion pre rigor filleted, where one fillet was used as a control, while the other fillet was electrically stimulated using a squared 5 Hz, 10 V pulsed DC for 3 min. All pre rigor fillets were measured for pH, weighed, wrapped in aluminum foil and stored in polystyrene boxes with ice. After 7 days of storage the fillets were measured instrumentally for pH, drip loss, colour (CIE L* a* b*) and texture properties such as hardness and shear force, while fillet shrinkage and colour (RBG) were evaluated with computer imaging on photographs from a standard lightbox. Results showed that softness of the flesh was mainly influenced by factors associated with growth, such as season, photoperiod and maturation. Anaerobic muscle activity simulated with electrical stimulation caused an increase in drip loss (\1%) and loss of shear force 123Aquacult Int (2010( ) 18:461-474 DOI 10.1007 (\4%), but had no effect on hardness or fillet shrinkage. Computer imaging revealed that muscle contractions related to the electrical stimulus forced out blood from the fillet causing less reddishness for the entire storage period. We conclude that a pH drop upon slaughter associated with anaerobic muscle activity has a minor effect on the flesh quality in the short run, while seasonal/alternatively genetic effects are predominant.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The influence of anaerobic muscle activity, maturation and season on the flesh quality of farmed turbot

et al. 2009

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“…This may be due to the same reasons as described in fillet contraction. Moreover, similar to changes in texture (described below), gaping can be related to growth rate, state of maturity of the fish and rearing season (Espe et al, ; Lavety, Afolabi, & Love, ; Roth et al, ; Roth, Jenssen, Jonassen, Foss, & Imsland, ).…”

Section: Resultsmentioning

confidence: 97%

Impact of photostimulation for delayed maturity on flesh quality of brook trout (Salvelinus fontinalis) stored under refrigerated conditions

et al. 2018

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The artificial prolongation of daylight is generally used to delay sexual maturation in many cultured species, mainly in salmonids. This may have a negative impact on flesh quality. Therefore, we aimed to investigate the impact of photostimulation on post‐mortem changes; sensory, textural and nutritional characteristics of flesh of brook trout, Salvelinus fontinalis. Farmed brook trout were randomly divided into four experimental groups, according to photoperiod and sex for 112 days. Fish body traits and flesh quality of experimental fish were examined by body weight (g), gonadosomatic, hepatosomatic and perivisceral fat indices (%), rigor index (%), pH changes, fillet contraction (%), gaping, flesh water losses, textural, colour and sensory analyses and finally fat content and fatty acid (FA) composition. The results of pH measurement and rigor mortis showed that lower values of pH were measured in fish under artificial photoperiod (AP) during the entire measurement with faster progress of rigor mortis in comparison to fish under natural photoperiod (NP, control). In colour measurement, significant differences were detected in lightness L*, where NP fish (mature) were lighter than AP fish (immature). Significantly higher fillet contraction (p < 0.05) more than 7% were observed among AP females compared to the control groups. Finally, we documented that extension of light period has a positive effect on the sensory evaluation, the fat content and FA composition of brook trout flesh, but the effect is only minimal.

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“…(Lavety, Afolabi, & Love, 1988;Ofstad, Olsen, Taylor, & Hannesson, 2006). A number of biochemical deteriorative processes causes the ruptures, but also physical strain and handling may lead to gaping (Rosnes et al, 2003).…”

Section: Treatmentmentioning

confidence: 98%

Low salt brining of pre-rigor filleted farmed cod (Gadus morhua L.) and the effects on different quality parameters

Larsen

Olsen

Kristoffersen

et al. 2008

LWT - Food Science and Technology

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The connective tissues of fish.

Cited by 87 publications

References 11 publications

The influence of anaerobic muscle activity, maturation and season on the flesh quality of farmed turbot

The influence of anaerobic muscle activity, maturation and season on the flesh quality of farmed turbot

Impact of photostimulation for delayed maturity on flesh quality of brook trout (Salvelinus fontinalis) stored under refrigerated conditions

Low salt brining of pre-rigor filleted farmed cod (Gadus morhua L.) and the effects on different quality parameters

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