2008
DOI: 10.1590/s0044-59672008000400002
|View full text |Cite
|
Sign up to set email alerts
|

Abstract: 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 … Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
2
1
1
1

Citation Types

0
11
0
3

Year Published

2011
2011
2023
2023

Publication Types

Select...
9

Relationship

0
9

Authors

Journals

citations
Cited by 30 publications
(14 citation statements)
references
References 33 publications
(43 reference statements)
0
11
0
3
Order By: Relevance
“…In fact, a lack of response would evidence the inability to adapt to cold, which could eventually lead to fish death. Indeed, mass mortality of matrinxã due to a sudden decrease of water temperature has been previously reported in aquaculture facilities close to subtropical areas (Inoue et al 2008). In contrast, the partial mortality observed in the control group indicated that fish were indeed stressed despite the lack of an endocrine response.…”
Section: Discussionmentioning
confidence: 73%
“…In fact, a lack of response would evidence the inability to adapt to cold, which could eventually lead to fish death. Indeed, mass mortality of matrinxã due to a sudden decrease of water temperature has been previously reported in aquaculture facilities close to subtropical areas (Inoue et al 2008). In contrast, the partial mortality observed in the control group indicated that fish were indeed stressed despite the lack of an endocrine response.…”
Section: Discussionmentioning
confidence: 73%
“…Earlier investigations have shown that the increased expression of HSP70 in brain tissue was previously linked to cold stress in channel catfish (Ju, Dunham & Liu ) and found the abundance of HSP70 mRNA in muscle of channel catfish reared at low temperature on day 14 and 28 of the study (Weber & Bosworth ). No increase in HSP70 mRNA levels were found in Atlantic salmon exposed to a 2 h, 12°C cold shock (from 16°C to 4°C) (Zarate & Bradley ), and changes of water temperature did not affect HSP70 levels in the Amazonian warm‐water fish matrinxã ( Brycon amazonicus ), while exposed to cold shock (18°C) and returning to the warm water (28°C) (Inoue, Moraes, Iwama & Afonso ). In addition, the expression of HSP70 mRNA in liver of fish showed more volatility during cold stress, compared with that in muscle.…”
Section: Discussionmentioning
confidence: 99%
“…Fish exposed to probiotics showed lower blood glucose levels because the probiotics enhanced ingestion and digestion capability [27]. Total hemoglobin concentration and blood hematocrit levels were not ostentatious during the cold shock [28] but in stressful conditions like hypoxia, the stored RBC's come into circulation due to Splenic contractions [29,30]. Nile tilapia is found tolerant to lower concentrations of DO as low as 1 mg L −1 [21] as well as other water quality factors like temperature, salinity, electrical conductivity, carbonates etc.…”
Section: Introductionmentioning
confidence: 99%