Cold-Stress Induced the Modulation of Catecholamines, Cortisol, Immunoglobulin M, and Leukocyte Phagocytosis in Tilapia

Chen, Wen‐Hsiung; Sun, Lian-Tien; Tsai, Ching-Lin; Song, Yen-Ling; Chang, Ching‐Fong

doi:10.1006/gcen.2001.7772

Cited by 119 publications

(58 citation statements)

References 55 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Hypoxia, viruses and salinity stress change the phenoloxidase (PO) activity of shrimps (Le Moullac et al, 1998;Cheng and Chen, 2002;Li et al, 2010;Salas-Leiton et al, 2010). Serum concentration of thyroxine (T4) and PO can be altered by cold-stress (Chen and Sun, 2002). Superoxide dismutase (SOD) has also been used to evaluate the immunological response of fish exposed to oxidative stress.…”

Section: Introductionmentioning

confidence: 99%

Untitled

He¹,

Qiang²,

Gabriel³

et al. 2015

Turk. J. Fish. Aquat. Sci.

View full text Add to dashboard Cite

The effects of feeding-intensity stress on biochemical indices of the GIFT strain of Nile tilapia were investigated in a recirculating freshwater system. Differences in serum and liver biochemistry, routine blood measurements, and growth were examined in fish fed three experimental rations (2%, 4% and 6% of fish biomass daily). Larger rations led to higher SGR but lower FCR, PER and SR. Smaller rations caused higher levels of HSI and cortisol. Fish on the 2% and 6% diets had lower liver levels of C3, LZM, SOD, Glu-GOD, HDL-C, TG, ALP, CAT and higher T4, AST, MDA than those on 4% diets. The 6% group had the lowest levels of LDH, TP, GSH, and GSH-PX. The 2% and 6% groups had lower blood levels of HGB, MCHC, RBC, and WBC than the 4% group; 2% fish had the highest RDW-CV and RDW-SD levels. Therefore, the optimal feeding rate for GIFT tilapia at about 29°C is 4% biomass/day; 6%/day could increase productivity but would be uneconomical; 2%/day would be unsuitable in the absence of natural food. We conclude that high and low feeding intensities would adversely influence the physiological health of tilapia and their resistance to disease, and reduce FCR.

show abstract

Section: Introductionmentioning

confidence: 99%

Untitled

He¹,

Qiang²,

Gabriel³

et al. 2015

Turk. J. Fish. Aquat. Sci.

View full text Add to dashboard Cite

show abstract

“…Regardless of the experimental trial, the perfusate contained 5nmoll -1 of adrenaline, which was replenished every 20min to offset rapid degradation. This level of adrenaline is within the range measured in vivo in tilapia plasma under routine conditions (Vianen et al, 2001;Chen et al, 2002), and was chosen based on the results of preliminary experiments, which were performed because of the variable results for the effect of adrenergic stimulation of the teleost heart. For example, while in situ perfused hearts of sea raven (Hemitripterus americanus), ocean pout (Zoarces americanus) and rainbow trout required elevated catecholamine levels (i.e.…”

Section: Perfusion Compositionmentioning

confidence: 99%

Exceptional cardiac anoxia tolerance in tilapia (Oreochromis hybrid)

Lague¹,

Speers‐Roesch

Richards

et al. 2012

Journal of Experimental Biology

View full text Add to dashboard Cite

SUMMARYAnoxic survival requires the matching of cardiac ATP supply (i.e. maximum glycolytic potential, MGP) and demand (i.e. cardiac power output, PO). We examined the idea that the previously observed in vivo downregulation of cardiac function during exposure to severe hypoxia in tilapia (Oreochromis hybrid) represents a physiological strategy to reduce routine PO to within the heartʼs MGP. The MGP of the ectothermic vertebrate heart has previously been suggested to be ~70nmol ATPs -1 NaCN) on cardiac performance in severe hypoxia were also examined. Under normoxic conditions, cardiac performance and myocardial oxygen consumption rate were comparable to those of other teleosts. The tilapia heart maintained a routine normoxic cardiac output (Q) and PO under all hypoxic conditions, a result that contrasts with the hypoxic cardiac downregulation previously observed in vivo under less severe conditions. Thus, we conclude that the in vivo downregulation of routine cardiac performance in hypoxia is not needed in tilapia to balance cardiac energy supply and demand. Indeed, the MGP of the tilapia heart proved to be quite exceptional. Measurements of myocardial lactate efflux during severe hypoxia were used to calculate the MGP of the tilapia heart. The MGP was estimated to be 172nmol ATPs , which is only 30% lower than the PO max observed with normoxia. Even with this MGP, the additional challenge of acidosis during severe hypoxia decreased maximum ATP turnover rate and PO max by 30% compared with severe hypoxia alone, suggesting that there are probably direct effects of acidosis on cardiac contractility. We conclude that the high maximum glycolytic ATP turnover rate and levels of PO, which exceed those measured in other ectothermic vertebrate hearts, probably convey a previously unreported anoxia tolerance of the tilapia heart, but a tolerance that may be tempered in vivo by the accumulation of acidotic waste during anoxia.

show abstract

“…In vivo studies have demonstrated that some indicators of the stress response (such as cortisol) can change when fish are exposed to acute cold shock (Barton & Peter, 1982;Tanck et al, 2000;Chen et al, 2002). However, to be able to make reliable comparisons it is important to consider the natural life history of the species being tested.…”

Section: Discussionmentioning

confidence: 99%

“…Rainbow trout, a cold-water fish, subjected to an abrupt cold temperature change (from 9 o C to 1 o C) showed increased plasma cortisol levels at 4h after, and the values remained elevated for up to 2 days (Barton & Peter, 1982). Tilapia aurea exposed to cold shock (from 25 °C to 13 °C during 30-120 min) also increased plasma cortisol levels not only during the cold stress, but also 1-2 days after (Chen et al, 2002). Under experimental conditions the lower lethal temperature is between 6-9 o C, demonstrating that this species is able to tolerate cold temperature (Chervinski & Lahav, 1976;Shafland & Pestrak, 1982).…”

Section: Discussionmentioning

confidence: 99%

“…Palmisano et al (2000) demonstrated that chinook salmon (Oncorhynchus tshawytscha) exposed to heat shock presented increased levels of HsP90 messenger rnA, but there was no concomitant increase in plasma cortisol levels. studies have also shown an endocrine stress response change in fish exposed to cold shock (Barton & Peter, 1982;Tanck et al, 2000;Chen et al, 2002). In these three studies, increased plasma cortisol levels were observed in rainbow trout, common carp (Cyprinus carpio) and tilapia aurea (Oreochromis aureus), respectively, exposed to cold shock (in different experimental conditions).…”

Section: Introductionmentioning

confidence: 88%

See 1 more Smart Citation

Physiological stress responses in the warm-water fish matrinxã (Brycon amazonicus ) subjected to a sudden cold shock

et al. 2008

View full text Add to dashboard Cite

The present work evaluated several aspects of the generalized stress response [endocrine (cortisol), metabolic (glucose), hematologic (hematocrit and hemoglobin) and cellular (HsP70)] in the Amazonian warm-water fish matrinxã (Brycon amazonicus) subjected to an acute cold shock. This species farming has been done in south America, and growth and feed conversion rates have been interesting. However, in subtropical areas of Brazil, where the water temperature can rapidly change, high rates of matrinxã mortality have been associated with abrupt decrease in the water temperature. Thus, we subjected matrinxã to a sudden cold shock by transferring the fish directly to tanks in which the water temperature was 10 o C below the initial conditions (cold shock from 28°C to 18 o C). After 1h the fish were returned to the original tanks (28ºC). The handling associated with tank transfer was also imposed on control groups (not exposed to cold shock). while exposure to cold shock did not alter the measured physiological conditions within 1h, fish returned to the ambient condition (water at 28º C) significantly increased plasma cortisol and glucose levels. exposure to cold shock and return to the warm water did not affect HsP70 levels. The increased plasma cortisol and glucose levels after returning the fish to warm water suggest that matrinxã requires cortisol and glucose for adaptation to increased temperature.Key words: matrinxã, cold shock, stress, HsP70.Respostas fisiológicas ao estresse do peixe de águas tépidas matrinxã (Brycon amazonicus) submetido à queda brusca de temperatura resumo o presente trabalho avaliou as principais respostas fisiológicas e celulares [endócrino (cortisol), metabólico (glicose), hematológico (hematócrito and hemoglobina) e celular (HsP70)] ao estresse de um peixe de águas tépidas, o matrinxã (Brycon amazonicus), quando submetido a um choque térmico frio abrupto. essa espécie vem sendo amplamente cultivada na América do sul por apresentar excelentes índices zootécnicos de crescimento e conversão alimentar. entretanto, os produtores rurais encontram limitações no manejo do matrinxã, quando criado em regiões mais frias que sua região de origem, a Bacia Amazônica. Assim, o matrinxã foi submetido a um choque frio através da transferência direta dos peixes para tanques com água fria a 18°C. Após 1h, esses peixes retornaram a suas caixas de origem a 28°C. o manuseio de peixes necessário para conduzir o choque térmico experimental foi também imposto aos grupos controle, sendo, entretanto, evitada a água fria. o matrinxã demonstrou claros sinais de estresse fisiológico durante os procedimentos experimentais. Porém, essas respostas não foram associadas ao choque frio, mas sim ao choque quente por ocasião da volta dos peixes para as caixas de origem. As respostas primárias e secundárias de estresse foram evidentes através das análises plasmáticas de cortisol e glicose. Já o hematócrito, a hemoglobina e as expressões da proteína de estresse, HsP70, não foram afetadas. nossos resultados sustentam qu...

show abstract

Cold-Stress Induced the Modulation of Catecholamines, Cortisol, Immunoglobulin M, and Leukocyte Phagocytosis in Tilapia

Cited by 119 publications

References 55 publications

Untitled

Untitled

Exceptional cardiac anoxia tolerance in tilapia (Oreochromis hybrid)

Physiological stress responses in the warm-water fish matrinxã (Brycon amazonicus ) subjected to a sudden cold shock

Contact Info

Product

Resources

About