EFFECT OF DIETARY L- CARNITINE AND BETAINE COMBINATION ON GROWTH PERFORMANCE, DIGESTIVE ENZYME ACTIVITIES AND STRESS RESISTANCE IN RAINBOW TROUT ONCORHYNCHUS MYKISS [WALBAUM, 1792] FED WITH DIFFERENT OIL SOURCES

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HEYDARI REYHANEH; MESHKINI SAEID; HOSSEIN NAJDEGERAMI EBRAHIM

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Journal: JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH Year:2016 | Volume:3 | Issue:4 Page(s): 75-88

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Title

EFFECT OF DIETARY L- CARNITINE AND BETAINE COMBINATION ON GROWTH PERFORMANCE, DIGESTIVE ENZYME ACTIVITIES AND STRESS RESISTANCE IN RAINBOW TROUT ONCORHYNCHUS MYKISS [WALBAUM, 1792] FED WITH DIFFERENT OIL SOURCES

Author(s)

HEYDARI REYHANEH | MESHKINI SAEID | HOSSEIN NAJDEGERAMI EBRAHIM | Issue Writer Certificate

Keywords

O. MYKISSQ1

L-CARNITINEQ2

BETAINEQ2

DIGESTIVE ENZYMESQ1

ENVIRONMENTAL STRESS3Q2

Abstract

Betaine and L-CARNITINE are important supplements in aquaculture industry. The present study was conducted to evaluate the interaction effects of these supplements and oil type on the growth performance, DIGESTIVE ENZYMES activity and stress resistance of rainbow trout fingerlings. Four hundred and twenty healthy rainbow trout (initial weight: 9.9±0.1 g) were used. The sample was fed with four treatments (fish oil, fish oil+Betaine and L-CARNITINE, corn oil, corn oil+Betaine and L carnitine) and three replicates. The amount of BETAINE and L-CARNITINE used in the present study were 500 and 1000 mgr, respectively. Results of two- way ANOVA showed that experimental variables (the supplements and oils) did not affect fish weight gain independently while their interaction effects were significant (p<0.05). Also, the results did not show a significant independent effect of the supplements on the DIGESTIVE ENZYMES activity (p>0.05), but significant interaction effect of the supplements and oil was observed on amylase and alkaline phosphatase activity. In addition, the interaction and independent effect of variables on the resistance to environmental stress (salinity, oxygen and thermal) was investigated in fingerlings and the results revealed that oil variable did not affect stress resistance. However, the food supplements, both independently and in interaction with oil, increased fish resistance against thermal stress significantly.

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APA: Copy

HEYDARI, REYHANEH, MESHKINI, SAEID, & HOSSEIN NAJDEGERAMI, EBRAHIM. (2016). EFFECT OF DIETARY L- CARNITINE AND BETAINE COMBINATION ON GROWTH PERFORMANCE, DIGESTIVE ENZYME ACTIVITIES AND STRESS RESISTANCE IN RAINBOW TROUT ONCORHYNCHUS MYKISS [WALBAUM, 1792] FED WITH DIFFERENT OIL SOURCES. JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH, 3(4), 75-88. SID. https://sid.ir/paper/259535/en

Vancouver: Copy

HEYDARI REYHANEH, MESHKINI SAEID, HOSSEIN NAJDEGERAMI EBRAHIM. EFFECT OF DIETARY L- CARNITINE AND BETAINE COMBINATION ON GROWTH PERFORMANCE, DIGESTIVE ENZYME ACTIVITIES AND STRESS RESISTANCE IN RAINBOW TROUT ONCORHYNCHUS MYKISS [WALBAUM, 1792] FED WITH DIFFERENT OIL SOURCES. JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH[Internet]. 2016;3(4):75-88. Available from: https://sid.ir/paper/259535/en

IEEE: Copy

REYHANEH HEYDARI, SAEID MESHKINI, and EBRAHIM HOSSEIN NAJDEGERAMI, “EFFECT OF DIETARY L- CARNITINE AND BETAINE COMBINATION ON GROWTH PERFORMANCE, DIGESTIVE ENZYME ACTIVITIES AND STRESS RESISTANCE IN RAINBOW TROUT ONCORHYNCHUS MYKISS [WALBAUM, 1792] FED WITH DIFFERENT OIL SOURCES,” JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH, vol. 3, no. 4, pp. 75–88, 2016, [Online]. Available: https://sid.ir/paper/259535/en

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