Transporting live silver catfish (<i>Rhamdia quelen)</i> with salt addition does not mitigate fish stress and negatively affects meat quality

ROSA, Sheron Scholze; BALDAN, Ana Paula; BENDHACK, Fabiano; PASCHOAL, Aline Fernanda Lopes; CORDEIRO, Ananda Leticia Almeida; KIRSCHNIK, Peter Gaberz; BORGES, Tâmara Duarte; MACEDO, Renata Ernlund Freitas

doi:10.1590/fst.23318

Sheron Scholze ROSA

Escola de Ciências da Vida, Pontifícia Universidade Católica do Paraná – PUCPR, Curitiba, PR, Brasil

Ana Paula BALDAN

Escola de Ciências da Vida, Pontifícia Universidade Católica do Paraná – PUCPR, Curitiba, PR, Brasil

Fabiano BENDHACK

Centro de Estudos Marinhos, Universidade Federal do Paraná – UFPR, Pontal do Paraná, PR, Brasil

Aline Fernanda Lopes PASCHOAL

Escola de Ciências da Vida, Pontifícia Universidade Católica do Paraná – PUCPR, Curitiba, PR, Brasil

Ananda Leticia Almeida CORDEIRO

Centro de Estudos Marinhos, Universidade Federal do Paraná – UFPR, Pontal do Paraná, PR, Brasil

Peter Gaberz KIRSCHNIK

Programa de Graduação em Ciência Animal, Faculdade Católica do Tocantins, Palmas, TO, Brasil

Tâmara Duarte BORGES

Escola de Ciências da Vida, Pontifícia Universidade Católica do Paraná – PUCPR, Curitiba, PR, Brasil

https://orcid.org/0000-0003-4076-4147

Renata Ernlund Freitas MACEDO ^**Corresponding author: renata.macedo@pucpr.br

Escola de Ciências da Vida, Pontifícia Universidade Católica do Paraná – PUCPR, Curitiba, PR, Brasil

*Corresponding author: renata.macedo@pucpr.br

Figures (3)
Tables (4)

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Figure 1
Mean serum cortisol, plasma glucose, and liver glycogen levels in non-transported silver catfish, fish transported without the addition of sodium chloride (NaCl) to the water, and fish transported in water with the addition of NaCl at concentrations of 8.0 and 12.0 g·L^–1. Vertical bars represent the standard error of the mean. Different letters indicate significant differences among treatments (P < 0.05).

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Figure 2
Mean serum concentrations of sodium, chloride, potassium, and calcium in non-transported silver catfish (post-net-casting), fish transported without the addition of sodium chloride (NaCl) to the water (0), fish transported in water with the addition of NaCl at concentrations of 8.0 (8) and 12.0 g·L^–1 (12). Vertical bars represent the standard error of the mean. Different letters indicate significant differences among treatments (P < 0.05).

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Figure 3
Evolution of the mean rigor mortis index (R.M.I) in non-transported silver catfish, fish transported without the addition of sodium chloride (NaCl) to the water, and fish transported in water with the addition of NaCl at concentrations of 8.0 and 12.0 g·L^–1 at 0, 15, 240, 480, 720, 960, 1080, 1200 and 1440 min. postmortem in storage on ice. Vertical bars represent the standard deviation of the mean. *indicates significant differences among non-transported fish and 0, 8 and 12 g L^-1 NaCl water transported fish (P < 0.05).

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Table 1
Water parameters at earth pond, before and after transport (3 h).

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Table 2
Mean values for redness (a*) and (C*) in silver catfish fillet immediately after net casting (non-transported) and silver catfish transported without NaCl, with the addition of 8-g NaCl L^–1, and with the addition of 12-g NaCl L^–1 dissolved in water at 0, 48, 96, 144, 192, and 240 h postmortem in storage on ice. (Mean ± Standard Deviation).

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Table 3
Mean counts of psychrotrophic aerobic bacteria (log CFU·g^-1) in silver catfish immediately after net casting (non-transported) and silver catfish transported without NaCl, with the addition of 8-g NaCl L^–1, and with the addition of 12-g NaCl L^–1 dissolved in water at 0, 48, 96, 144, 192, and 240 h postmortem in storage on ice. (Mean ± Standard Deviation).

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Table 4
Mean sensory evaluation values obtained during the storage of silver catfish immediately after net casting (non-transported) and silver catfish transported without NaCl, with 8-g NaCl L^–1, and with 12-g NaCl L^–1 dissolved in the water. (Mean ± Standard Deviation).

Parameter	Earth Pond	Before ¹	After ¹
pH	8.10	7.48 ± 0.33	7.60 ± 0.50
Dissolved oxygen (mgL^-1)	5.40	5.00 ± 0.22	3.50 ± 0.31
Temperature (°C)	22.50	19.60 ± 0.00	19.80 ± 0.00
Total ammonia (mgL -1)	0.13	0.00 ± 0.01	3.06 ± 0.81

Time (h)	Non-transported	0 g NaCl L^-1	8 g NaCl L^-1	12 g NaCl L ^-1	Mean
Time (h)	a*				Mean
0	8.15 ± 1.82^aA	5.42 ± 2.32^aA	6.67 ± 4.9^aA	3.92 ± 1.2^aC	6.03±2.97^A
48	5.49 ± 0.98^aAB	3.65 ± 0.84^aAB	3.07 ± 2.56^aA	5.43 ± 1.8^aBC	4.40 1.82^A
96	3.73 ± 0.20^bB	4.95 ± 1.23^bAB	2.62 ± 0.6^bA	8.81 ± 2.33^aA	5.02 2.70^A
144	6.83 ± 1.43^aAB	2.43 ± 0.14^bB	4.31 ± 2.28^abA	5.65 ± 2.25^abABC	4.80 2.26^A
192	5.30 ± 3.16^aAB	3.03 ± 1.56^aAB	2.25 ± 0.9^aA	5.57 ± 2.44^aABC	4.03 2.38^A
240	4.04 ± 1.71^bB	2.84 ± 1.67^bAB	3.33 ± 1.6^bA	7.43 ± 0.71^aAB	4.41 2.26^A
Mean	5.58 ± 1.68^a	3.72 ± 1.21^b	3.70± 1.61^b	6.13 ± 1.72^a
Time (h)	C*
0	9.59 ± 2.27^aA	7.93 ± 1.99^aA	8.85 ± 4.37^aA	6.51 ± 2.64^aB
48	7.69 ± 1.13^abA	6.12 ± 0.41^abA	5.88 ± 1.96^bA	8.39 ± 1.31^aAB
96	7.75 ±1.8^abA	7.75 ± 2.68^abA	4.74 ± 0.54^bA	10.66 ± 2.54^aA
144	9.62 ± 1.75^aA	6.64 ± 0.49^aA	7.12 ± 2.7^aA	9.39 ± 0.91^aAB
192	9.32 ± 1.59^aA	7.04 ± 0.46^abA	5.39 ± 1.35^bA	8.19 ± 1.35^aAB
240	7.80 ± 0.99^bA	6.94 ± 1.58^bA	6.50 ± 0.82^bA	10.40 ± 1.35^aA

Time (h)	Non-transported	0 g NaCl L^–1	8 g NaCl L^–1	12 g NaCl L^–1	Mean
0	2.00 ± 0.00^aD	2.00 ± 0.00^aB	2.00 ± 0.00^aD	2.00 ± 0.00^aE	2.0± 0.00^D
48	2.98 ± 0.03^bC	2.35 ± 0.07^bB	2.35 ± 0.07^bCD	4.33 ± 0.30^aD	3.00±0.87^C
96	3.70 ± 0.07^aC	2.46 ± 0.65^aB	3.33 ± 0.38^aC	3.86 ± 0.16^aCD	3.33 ± 0.64^C
144	5.09 ± 0.43^aB	5.12 ± 0.98^aA	4.63 ± 0.45^aB	5.04 ± 0.43^aBC	4.97±0.51^B
192	6.25 ± 0.21^aA	4.89 ± 0.08^cA	4.94 ± 0.07^cB	5.56 ± 0.11^bAB	5.41±0.59^B
240	6.82 ± 0.00^aA	5.91 ± 0.06^cA	6.42 ± 0.07^bA	6.48 ± 0.03^bA	6.40±0.35^A
Mean	4.47 ± 1.81^a	3.78 ± 1.66 ^b	3.94 ± 1.62 ^b	4.54 ± 1.48 ^a

Time (h)	Non-transported	0 g NaCl L^–1	8 g NaCl L^–1	12 g NaCl L^–1
0	5.00 ± 0.00^aA	5.00 ± 0.00^aA	5.00 ± 0.00^aA	4.78 ± 0.44^aA
48	3.29 ± 0.68^aB	3.56 ± 0.88^aB	3.56 ± 0.52^aB	3.78 ± 0.66^aB
96	3.00 ± 0.00^aBC	2.91 ± 0.54^abB	2.09 ± 0.54^cC	2.14 ± 0.38^bcC
144	2.25 ± 0.86^aCD	2.75 ± 0.71^aB	2.38 ± 0.91^aCD	2.08 ± 0.79^aC
192	2.33 ± 0.51^aCD	1.80 ± 0.79^aC	2.00 ± 0.66^aCD	2.00 ± 0.63^aC
240	1.50 ± 0.53^aD	1.63 ± 0.52^aC	1.38 ± 0.52^aD	1.58 ± 0.67^aC

[1] *Corresponding author: renata.macedo@pucpr.br

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Transporting live silver catfish (Rhamdia quelen) with salt addition does not mitigate fish stress and negatively affects meat quality

Abstract