Effects of transportation stress on quality and sensory profiles of Nile tilapia fillets

Goes, Elenice Souza dos Reis; Lara, J. A. F. de; Gasparino, Eliane; Goes, Márcio Douglas; Zuanazzi, Jovana Silva Garbelini; Lopera-Barrero, Nelson Maurício; Rodriguez, Maria Del Pilar Rodriguez; Castro, Pedro Luiz de; Ribeiro, Ricardo Pereira

doi:10.1590/1678-992x-2016-0387

Cited by 16 publications

(15 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the correlation analysis, the acceptability was more related to the juiciness of the fillets. A previous study has shown that less stressed tilapia produces meat with higher WHC, lower water loss by pressure and higher juiciness [43]. In the present study, the lower acceptance may be related to the changes observed in the instrumental quality (greater tenderness, greater lightness and lower redness).…”

Section: Discussionsupporting

confidence: 51%

Imbalance of the redox system and quality of tilapia fillets subjected to pre-slaughter stress

Goes

Goes²,

Castro

et al. 2019

PLoS ONE

Self Cite

View full text Add to dashboard Cite

The objective of this study was to evaluate the effect of oxidative stress on the instrumental and sensory quality of Nile tilapia fillets. The experiment was conducted in a 2x2 factorial arrangement, evaluating densities (60 and 300 kg m-3) and depuration times (1 and 24 hours) in a total of four treatments. The serum levels of cortisol and gene expression levels of catalase (CAT), glutathione peroxidase (GPx) and 70 kDa heat shock protein (HSP70) as well as the pH, color, tenderness, water-holding capacity and sensory analysis of the fillets were evaluated. High density (300 kg m-3) resulted in higher mean cortisol levels, lower expression of CAT and GPx enzymes as well as higher expression of HSP70. Fish under this treatment also exhibited fillets with greater tenderness, higher lightness, lower redness and lower sensory acceptance. The longer depuration time (24 hours) resulted in lower expression of the CAT and GPx enzymes and fillets with higher lightness. The water-holding capacity was not affected by the different treatments. Therefore, low density and longer depuration times are recommended for decreased stress and improved quality of fillets.

show abstract

Section: Discussionsupporting

confidence: 51%

Imbalance of the redox system and quality of tilapia fillets subjected to pre-slaughter stress

Goes

Goes²,

Castro

et al. 2019

PLoS ONE

Self Cite

View full text Add to dashboard Cite

show abstract

“…However, WHC evaluation at different times of the day indicated a higher WHC for animals slaughtered in the early evening, and the plasma glucose level of the fish was also lower in this period. Similarly, a previous study reported a direct relationship between a higher level of stress in fish (with higher plasma glucose levels) and lower WHC in fillets of Nile tilapia (Goes et al, 2018). The lower WHC of meat increases the release of exudate and produces drier meat with less nutritional value (Zeola et al, 2007).…”

Section: Discussionmentioning

confidence: 70%

Anoxia stress and effect on flesh quality and gene expression of tilapia

et al. 2019

Self Cite

View full text Add to dashboard Cite

We evaluated the effect of the length of stay out of water on stress, gene expression, pH variation, blood parameters, histological analysis and water holding capacity (WHC) in fillets of the Nile tilapia (Oreochromis niloticus) cultivated in net-tanks. For this purpose, the fishes were maintained out of water under different periods of anoxia. Three and 6 min of anoxia in the pre-slaughter period increased the blood levels and mRNA expression of heat shock protein 70 the Nile tilapia and produced fillets with a less firm texture (greater sarcomere length). The evaluated periods of anoxia did not markedly affect pH and WHC. These results demonstrate that a pre-slaughter period of acute stress of up to 6 min does not considerably affect the quality of meat. The fillets of fish slaughtered in the early evening had a higher WHC and lower plasma glucose level than those slaughtered at the other time periods (morning and afternoon).Practical Application: Fish slaughter in the early evening produced fillets with greater WHC and lower plasma glucose.

show abstract

“…Also, although not described for propofol, transport studies have shown a negative and delayed correlation between cortisol and glucose concentrations in blood plasma, with the cortisol peak being reached immediately after the stressful situation while glucose increased over time [ 83 ]. However, recent reports have also suggested a similar trend between cortisol and glucose plasmatic levels in the transport of Nile tilapia [ 84 ]. The increase of glucose at the end of transport could indicate stress caused by propofol.…”

Section: Discussionmentioning

confidence: 76%

MS-222 and Propofol Sedation during and after the Simulated Transport of Nile tilapia (Oreochromis niloticus)

Félix

Correia

Sequeira

et al. 2021

Biology

View full text Add to dashboard Cite

The use of anesthetics has been suggested as a strategy to hamper live fish transport-induced stress. Still, there is insufficient data available on the use of alternative anesthetics to MS-222. This study investigated the use of propofol to mitigate stress in Nile tilapia (Oreochromis niloticus, 143.8 ± 20.9 g and 20.4 ± 0.9 cm) during a 6 h simulated transport. Individuals (n = 7) were divided into three groups: control, 40 mg L−1 MS-222, and 0.8 mg L−1 propofol. A naïve group non-transported was also considered. During the 6 h transport and 24 h after, the response to external stimuli, opercular movements, water quality parameters, behavior, blood hematology and other physiological values, the histopathology of the gills, the quality of the fillet, and oxidative-stress changes in gills, muscle, brain, and liver were evaluated. Propofol increased swimming activity of fish but decreased opercular movements and responses to external stimuli, indicating oscillations of the sedation depth. Water pH and glucose levels increased, while hematocrit (HCT) and lactate decreased in propofol groups at 6 h. At this time-point, MS-222 also induced a decrease in the HCT and lactate levels while increasing cortisol levels. Despite these effects, the stress-related behaviors lessened with anesthetics compared to the control group. After the recovery period, physiological responses normalized in animals from both anesthetic groups, but the control still had high cortisol levels. Overall, propofol is a good alternative for the transportation of this species, showing efficient sedation without compromising health or fillet quality. However, further pharmacodynamics and pharmacokinetics knowledge is required to support its use in aquaculture settings.

show abstract

Effects of transportation stress on quality and sensory profiles of Nile tilapia fillets

Cited by 16 publications

References 37 publications

Imbalance of the redox system and quality of tilapia fillets subjected to pre-slaughter stress

Imbalance of the redox system and quality of tilapia fillets subjected to pre-slaughter stress

Anoxia stress and effect on flesh quality and gene expression of tilapia

MS-222 and Propofol Sedation during and after the Simulated Transport of Nile tilapia (Oreochromis niloticus)

Contact Info

Product

Resources

About