Salt as a stress response mitigator of matrinxã,<i>Brycon cephalus</i>(Günther), during transport

Carneiro, P.R.O.; Urbinati, Elisabeth Criscuolo

doi:10.1046/j.1365-2109.2001.00558.x

Cited by 110 publications

(104 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Plasma chloride levels were within the range normally found for this species under minimized stress conditions (118-132 mEq L -1 ); whereas hematocrit exhibited lower values (range for jundiá under minimum stress: 37-51%), according to Borges et al (2004). In contrast to what was observed by Gomes et al (2006) with pirarucu (Arapaima gigas), by Barton et al (2003) with walleye (Stizostedion vitreum) and by Carneiro & Urbinati (2001) and with matrinxã (Brycon cephalus), the plasma chloride and hematocrit analyses did not show results that permitted evaluation of the physiological state of jundiá under the acute stress caused by loading density or transport itself.…”

Section: Discussioncontrasting

confidence: 46%

Transport of jundiá Rhamdia quelen juveniles at different loading densities: water quality and blood parameters

et al. 2009

View full text Add to dashboard Cite

Fish transportation is a common practice on fish farms and is considered to be a stressor that could negatively affect fish health. The objective of this study was to evaluate several physiological responses of stress in jundiá caused by transport at different loading densities. Jundiá juveniles were placed in plastic bags on a mechanical transport simulator for four hours at four different loading densities (75, 150, 250 and 350 g L -1 ) and then transferred to sixteen 80-L plastic boxes for 96 hours after transport. Water samples were collected before and after transport to measure dissolved oxygen, temperature, pH and ammonia levels. Blood samples were taken at departure and arrival, as well as at 24 and 96 hours after transport to monitor cortisol, glucose, ammonia, chloride and hematocrit levels. Water ammonia levels were found to increase gradually as loading densities increased. Plasma ammonia was higher after transport in fish from all treatments. Compared to initial values, substantial increases in plasma cortisol and ammonia levels were detected mainly in those fish submitted to the highest loading density. Blood glucose appeared to be positively influenced by the increase of transport densities. No statistical differences were observed in any of the other blood parameters. The costs in fish culture, as in other animal production systems, must be minimized and fish producers depend on optimal techniques to ensure better profit. Therefore, based on fish survival and the physiological indicators determined in the present study, especially during recovery, the best density at which to transport jundiá in plastic bags for four hours is about 350 g/L.O transporte de peixes é uma prática comum em piscicultura e considerado como um agente estressor que causa efeitos negativos na saúde do peixe. O objetivo deste estudo foi avaliar algumas respostas fisiológicas de estresse no jundiá causadas pelo transporte em densidades diferentes. Juvenis de jundiá foram transportados em sacos plásticos num simulador de transporte por quatro horas em diferentes densidades (75, 150, 250 e 350 g L -1 ) e transferidos para 16 caixas plásticas de 80 L por 96 horas após o transporte. Amostras de água foram coletadas antes e após o transporte para determinações de oxigênio dissolvido, temperatura, pH e amônia. Além dos momentos da saída e da chegada, amostras de sangue foram retiradas 24 e 96 horas após o transporte para monitorar os níveis de cortisol, glicose, amônia, cloreto e hematócrito. A amônia na água aumentou gradualmente acompanhando o aumento das densidades. A amônia plasmática estava elevada após o transporte nos peixes de todos os tratamentos. Comparando com os valores iniciais, aumentos substanciais nos níveis plasmáticos de cortisol e amônia foram registrados principalmente nos peixes submetidos à densidade de transporte mais elevada. Os níveis glicêmicos parecem ter sido influenciados pelo aumento nas densidades de transporte. Não foram registradas diferenças significativas nos demais parâmetros sanguíneos. O cus...

show abstract

Section: Discussioncontrasting

confidence: 46%

Transport of jundiá Rhamdia quelen juveniles at different loading densities: water quality and blood parameters

et al. 2009

View full text Add to dashboard Cite

show abstract

“…Decrease in plasma concentration of chloride and sodium were found in other stressed freshwater fish as in Brycon cephalus after transport (Carneiro and Urbinati, 2001;Urbinati et al, 2004). In our experiment, a partial and moderate disturbance of the ionic balance was found in both air exposed fish.…”

Section: Discussionmentioning

confidence: 53%

“…However, little research has been done on native South American fishes. Among the Brazilian farmed fish, research on stress has been carried out on matrinxã (Brycon cephalus) (Günther, 1869) (Carneiro and Urbinati, 2001;Ide et al, 2003;Rocha et al, 2004;Urbinati et al, 2004), tambaqui (Colossoma macropomum) (Cuvier, 1818) (Gomes et al, 2003a), pirarucu (Arapaimas gigas) (Schinz, 1822) (Gomes et al, 2003b) and jundiá (Randia quelen) (Quoy and Gaimard, 1824) (Barcellos et al, 2001). Despite pacu (Piaractus mesopotamicus) (Holmberg, 1887) being considered one of the most important native species (Queiroz et al, 2005) and studies on its reproduction (Romagosa et al, 1990), larviculture (Jomori et al, 2003), feeding and nutrition (Souza et al, 2000;Bechara et al, 2005;Abimorad et al, 2007) are available, there is sparse knowledge on the stress response of the species (Krieger et al, 1989;Martins et al, 2000;.…”

Section: Introductionmentioning

confidence: 99%

Biological indicators of stress in pacu (Piaractus mesopotamicus) after capture

et al. 2009

View full text Add to dashboard Cite

The effects of capture (chasing, netting and air exposure) on cortisol, glucose, chloride, sodium, potassium and calcium concentrations, osmolality, hematocrit, hemoglobin concentration, red blood cells count (RBC) and mean corpuscular volume (MCV) were investigated in pacu (Piaractus mesopotamicus). A total of 132 fish (49.7 ± 11.7 g) were subjected to capture and 3 minutes air exposure and capture and 5 minutes air exposure. Nine fish at each treatment were sampled at 5, 15, 30, 60 minutes and 24 hours after the procedure. Nine undisturbed fish were sacrificed before the handling and used as controls. Capture resulted in a rise in blood cortisol and glucose 30 and 5 minutes, respectively, after both air exposures. Both indicators returned to resting levels 24 hours after capture. In both fish groups, plasma chloride decreased 60 minutes after capture, not recovering the resting levels within 24 hours after, and serum sodium rose at 15 and 30 minutes and recovered the resting levels 24 hours later. There were no significant changes neither in potassium, calcium and osmolality nor in hematocrit, hemoglobin, RBC and MCV as a consequence of capture. The sequential stressors imposed to pacu during capture activated the brain-pituitary-interrenal axis (cortisol and glucose responses) but the activation of the brain-sympathetic-chromaffin cell axis was apparently moderate (ionic and hematological responses).Keywords: capture, air exposure, stress, Piaractus mesopotamicus. Indicadores biológicos de estresse em pacu (Piaractus mesopotamicus) após captura ResumoOs efeitos da captura (perseguição, contenção em puçá e exposição aérea) no perfil sanguíneo do cortisol, glicose, cloreto, sódio, potássio, cálcio e na osmolaridade, hematócrito, hemoglobina, número de células vermelhas (CV) e volume corpuscular médio (VCM) foram investigados no pacu (Piaractus mesopotamicus). Um total de 132 peixes (49,7 ± 11,7 g) foi submetido à captura com 3 ou 5 minutos de exposição aérea. Nove peixes de cada tratamento foram amostrados 5, 15, 30, 60 minutos e 24 horas depois e outros nove peixes foram amostrados antes da captura e considerados controle. A captura resultou em aumento do cortisol e glicose no sangue 30 e 5 minutos depois da captura, respectivamente, independente do tempo de exposição aérea. Ambos os indicadores recuperaram os valores controle em 24 horas. Nos dois grupos de peixes, o cloreto plasmático diminuiu 60 minutos após captura e não recuperou os valores controle, enquanto o sódio sérico aumentou entre 15 e 30 minutos recuperando a condição controle em 24 horas. Não houve alteração significativa nos valores de potássio, cálcio, osmolaridade ou no hematócrito, hemoglobina, CV e VCM como consequência da captura. Os estressores sequenciais aplicados no pacu durante a captura ativaram o eixo cérebro-pituitária-interrenal (respostas do cortisol e glicose), mas a ativação do eixo cérebro-sistema simpático-células cromafins foi aparentemente moderada (respostas iônicas e hematológicas).Palavras-chave: captura, exposiç...

show abstract

“…Several studies in freshwater fish have demonstrated decreased plasma chloride levels in animals subjected to transport (Barton et al, 2002;Forsberg et al, 2001;Mazik et al, 1991). A study with matrinxã showed that addition of marine salt (NaCl) to the water can also minimize the loss of ions during transportation (Carneiro & Urbinati, 2001). This, however, may not be valid for all species, since in walleyes (Sander vitreus) addition of salt (0.5%) did not prevent the decrease in plasma chloride (Carmichael et al, 2001).…”

Section: Discussionmentioning

confidence: 99%

“…Matrinxã Brycon cephalus (Gunther, 1869) is a warm-water teleost fish from the Amazon basin that has been intensively reared in South America due to its favorable aquaculture characteristics, such as growth and feed conversion ratios (Carneiro & Urbinati, 2001). However, mortality in matrinxã has been reported in many fish farms, and it is usually associated with acute stimulus as handling and transport (Kubitza, 2003).…”

Section: Introductionmentioning

confidence: 99%

Effects of clove oil on the stress response of matrinxã (Brycon cephalus) subjected to transport

Inoue

Afonso

Iwama³

et al. 2005

Acta Amaz.

View full text Add to dashboard Cite

Fish transport is one of the most stressful procedures in aquaculture facilities. The present work evaluated the stress response of matrinxã to transportation procedures, and the use of clove oil as an alternative to reduce the stress response to transport in matrinxã (Brycon cephalus). Clove oil solutions were tested in concentrations of 0, 1, 5 and 10 mg/L during matrinxã transportation in plastic bags, supplied with water and oxygen as the usual field procedures in Brazil. Clove oil reduced some of the physiological stress responses (plasma cortisol, glucose and ions) that we measured. The high energetic cost to matrinxã cope with the transport stress was clear by the decrease of liver glycogen after transport. Our results suggest that clove oil (5 mg/l) can mitigate the stress response in matrinxã subjected to transport. KEY WORDSmatrinxã Brycon cephalus, transport, stress, clove oil.Efeito do óleo de cravo na resposta de estresse do matrinxã (Brycon cephalus) submetido ao transporte. RESUMO O transporte de peixes vivos é certamente um dos principais estímulos adversos à homeostase dos peixes nas condições de criação em cativeiro. O presente trabalho mensurou o estresse do matrinxã (Brycon PALAVRAS-CHAVEmatrinxã Brycon cephalus, transporte, estresse, óleo de cravo.

show abstract

Salt as a stress response mitigator of matrinxã,Brycon cephalus(Günther), during transport

Cited by 110 publications

References 23 publications

Transport of jundiá Rhamdia quelen juveniles at different loading densities: water quality and blood parameters

Transport of jundiá Rhamdia quelen juveniles at different loading densities: water quality and blood parameters

Biological indicators of stress in pacu (Piaractus mesopotamicus) after capture

Effects of clove oil on the stress response of matrinxã (Brycon cephalus) subjected to transport

Contact Info

Product

Resources

About