Effects of Stocking Density on the Individual Growth and Differentiation of the Oriental River Prawn Macrobrachium Nipponense (De Haan, 1849) (Caridea: Palaemonidae). Issue 6 (1st November 2016)
- Record Type:
- Journal Article
- Title:
- Effects of Stocking Density on the Individual Growth and Differentiation of the Oriental River Prawn Macrobrachium Nipponense (De Haan, 1849) (Caridea: Palaemonidae). Issue 6 (1st November 2016)
- Main Title:
- Effects of Stocking Density on the Individual Growth and Differentiation of the Oriental River Prawn Macrobrachium Nipponense (De Haan, 1849) (Caridea: Palaemonidae)
- Authors:
- Sun, Shengming
Fu, Hongtuo
Gu, Zhimin
Zhu, Jian - Abstract:
- Abstract: We evaluated the effect of stocking density on the concentrations of oxy-hemocyanin and lactate in hemolymph, the antioxidant ability of the hepatopancreas, and the biochemical composition in large and small individuals of the prawn Macrobrachium nipponense (de Haan, 1849 ) cultured in a cage system. Juveniles $(0.24\;{\rm{g}}\;{\rm{initial\;weight}})$ were stocked in 15 cages with stocking densities of 40, 80, 120, 160, and ${\rm{200}}\;{\rm{individuals/}}{{\rm{m}}^2}$ for 8 weeks. The results demonstrated that final mean weight, weight gain, gross feed conversion ratio, and survival rate were significantly lower in stocking densities of 160 and ${\rm{200}}\;{\rm{individuals/}}{{\rm{m}}^2}$ $(P \lt 0.05)$ than in other treatment groups, not through water quality deterioration or food competition, but through the role of density as an environmental stress factor. The coefficient of variation (CV) of body weight increased as the stocking density increased, and the CV in the 160 and ${\rm{200}}\;{\rm{individuals/}}{{\rm{m}}^2}$ groups were over $70\% $ . The values of hemolymph oxy-hemocyanin and lactate concentration, superoxide dismutase (SOD), catalase (CAT) activities, malondialdehyde (MDA) content, and heat-shock protein 70 (HSP70) mRNA expressions of hepatopancreas in small individuals were significantly higher than those of the large ones in high stocking densities of 160 and ${\rm{200}}\;{\rm{individuals/}}{{\rm{m}}^2}$ . This study provides evidence thatAbstract: We evaluated the effect of stocking density on the concentrations of oxy-hemocyanin and lactate in hemolymph, the antioxidant ability of the hepatopancreas, and the biochemical composition in large and small individuals of the prawn Macrobrachium nipponense (de Haan, 1849 ) cultured in a cage system. Juveniles $(0.24\;{\rm{g}}\;{\rm{initial\;weight}})$ were stocked in 15 cages with stocking densities of 40, 80, 120, 160, and ${\rm{200}}\;{\rm{individuals/}}{{\rm{m}}^2}$ for 8 weeks. The results demonstrated that final mean weight, weight gain, gross feed conversion ratio, and survival rate were significantly lower in stocking densities of 160 and ${\rm{200}}\;{\rm{individuals/}}{{\rm{m}}^2}$ $(P \lt 0.05)$ than in other treatment groups, not through water quality deterioration or food competition, but through the role of density as an environmental stress factor. The coefficient of variation (CV) of body weight increased as the stocking density increased, and the CV in the 160 and ${\rm{200}}\;{\rm{individuals/}}{{\rm{m}}^2}$ groups were over $70\% $ . The values of hemolymph oxy-hemocyanin and lactate concentration, superoxide dismutase (SOD), catalase (CAT) activities, malondialdehyde (MDA) content, and heat-shock protein 70 (HSP70) mRNA expressions of hepatopancreas in small individuals were significantly higher than those of the large ones in high stocking densities of 160 and ${\rm{200}}\;{\rm{individuals/}}{{\rm{m}}^2}$ . This study provides evidence that crowding stress can stimulate the physiological response of the small individuals raising their oxy-hemocyanin and lactate level in the hemolymph and decreasing antioxidant ability on hepatopancreas, which ultimately lead to suppress growth performance of the small individuals. … (more)
- Is Part Of:
- Journal of crustacean biology. Volume 36:Issue 6(2016)
- Journal:
- Journal of crustacean biology
- Issue:
- Volume 36:Issue 6(2016)
- Issue Display:
- Volume 36, Issue 6 (2016)
- Year:
- 2016
- Volume:
- 36
- Issue:
- 6
- Issue Sort Value:
- 2016-0036-0006-0000
- Page Start:
- 769
- Page End:
- 775
- Publication Date:
- 2016-11-01
- Subjects:
- antioxidant enzyme activities -- aquaculture -- China
Crustacea -- Periodicals
Crustacés -- Périodiques
Crustacea
Periodicals
595.305 - Journal URLs:
- http://www.jstor.org/journals/02780372.html ↗
http://www.bioone.org/bioone/?request=get-journals-list&issn=0278-0372 ↗
https://academic.oup.com/jcb ↗
http://www.oxfordjournals.org/ ↗
http://firstsearch.oclc.org ↗
http://firstsearch.oclc.org/journal=0278-0372;screen=info;ECOIP ↗ - DOI:
- 10.1163/1937240X-00002482 ↗
- Languages:
- English
- ISSNs:
- 0278-0372
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 4965.680000
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