Growth performance and blood parameters of juvenile Rainbow trout Onchorhynchus mykiss (Walbaum, 1792) fed with extracts of Sargassum cristaefolium and Gracilaria pygmaea

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SOTOUDEH E.; Eshaghnejad Z.; BAHADORI R.; Moradyan s.h.

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Journal: JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH Year:2020 | Volume:8 | Issue:1 Page(s): 80-88

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Title

Growth performance and blood parameters of juvenile Rainbow trout Onchorhynchus mykiss (Walbaum, 1792) fed with extracts of Sargassum cristaefolium and Gracilaria pygmaea

Author(s)

SOTOUDEH E. | Eshaghnejad Z. | BAHADORI R. | Moradyan s.h. | Issue Writer Certificate

Keywords

O.mykissQ1

Dietary supplementQ1

Brown algaeQ1

Red algaeQ1

Abstract

This study was carried out to investigate the effects of macroalgae Sargassum cristaefolium and Gracilaria pygmaea extracts on growth performance and blood parameters of juvenile rainbow trout (O. mykiss). Animals were randomly divided into four groups (initial weight; 0. 23 g); control group (basal diet without extracts), and three groups were fed with basal diet supplemented with 500 mg/kg S. cristaefolium (SA), 500 mg/kg G. pygmaea (GL), and 250 mg/kg S. cristaefolium + 250 mg/kg G. pygmaea (SA+GL) for 8 weeks. Fish were handfed to apparent satiation 4 times a day and fish were supplied water ad libitum, for 8 weeks. Results showed that growth factors such as final fish weight, specific growth rate (SGR), weight gain (WG), and condition factor (CF) were not significantly different among different groups. Hepatosomatic index (HSI) was significantly higher in the fish fed with control and SA diets. Hemoglobin level in fish fed with diet containing gracilaria was significantly higher than the control group. The control group had a higher level of triglycerides compared to the groups fed with diets containing sargassum or a mix of sargassum and gracilaria. Consequently, these results indicated that Dietary supplementation with sargassum and gracilaria extracts had no significant effects on growth performance and blood parameters of juvenile rainbow trout.

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APA: Copy

SOTOUDEH, E., Eshaghnejad, Z., BAHADORI, R., & Moradyan, s.h.. (2020). Growth performance and blood parameters of juvenile Rainbow trout Onchorhynchus mykiss (Walbaum, 1792) fed with extracts of Sargassum cristaefolium and Gracilaria pygmaea. JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH, 8(1 ), 80-88. SID. https://sid.ir/paper/385757/en

Vancouver: Copy

SOTOUDEH E., Eshaghnejad Z., BAHADORI R., Moradyan s.h.. Growth performance and blood parameters of juvenile Rainbow trout Onchorhynchus mykiss (Walbaum, 1792) fed with extracts of Sargassum cristaefolium and Gracilaria pygmaea. JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH[Internet]. 2020;8(1 ):80-88. Available from: https://sid.ir/paper/385757/en

IEEE: Copy

E. SOTOUDEH, Z. Eshaghnejad, R. BAHADORI, and s.h. Moradyan, “Growth performance and blood parameters of juvenile Rainbow trout Onchorhynchus mykiss (Walbaum, 1792) fed with extracts of Sargassum cristaefolium and Gracilaria pygmaea,” JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH, vol. 8, no. 1 , pp. 80–88, 2020, [Online]. Available: https://sid.ir/paper/385757/en

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