REPLACEMENT OF FISH MEAL BY CANOLA MEAL IN RAINBOW TROUT DIET FOR EVALUATION OF GROWTH AND AMMONIA EXCRETION

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YAZDANPANAH KOUROSH; EBRAHIMI EISA; MAHBOOBI SOOFIANI NASROLLAH; SHAFAEIPOUR ARIA

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Journal: JOURNAL OF MARINE SCIENCES AND TECHNOLOGY Year:2011 | Volume:9 | Issue:4 Page(s): 28-44

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Title

REPLACEMENT OF FISH MEAL BY CANOLA MEAL IN RAINBOW TROUT DIET FOR EVALUATION OF GROWTH AND AMMONIA EXCRETION

Author(s)

YAZDANPANAH KOUROSH | EBRAHIMI EISA | MAHBOOBI SOOFIANI NASROLLAH | SHAFAEIPOUR ARIA | Issue Writer Certificate

Keywords

GROWTH PARAMETERSQ2

AMMONIA EXCRETIONQ3

PROTEIN EFFICIENCY RATIOQ2

BODY COMPOSITIONQ2

Abstract

An 8-week feeding trial was conducted in order to investigate the effects of replacement of dietary fish meal by canola meal on growth performance, BODY COMPOSITION and AMMONIA EXCRETION rate (NH3) of the rainbow trout fingerlings. Experimental diets iso-protein (40%) and iso-caloric (3320 cal/g), were formulated with five levels of canola meal consisting of 0, 12, 24, 36 and 48 percent canola, which substituted 0, 25, 50, 75 and 100 percent of fish meal in the control diet, respectively. In each experimental treatment triplicate groups of rainbow trout fingerlings (15.2±2.3 g), were used in a completely randomized design. Fifty fish were assigned to each experimental diet treatment and held in 250 L tank. The results showed that replacement of fish meal by the canola meal up to 75 percent had no negative effects on growth performance. However, complete replacement showed a significance reduction (p>0.05) in all GROWTH PARAMETERS. Generally, BODY COMPOSITION was affected by level of fish meal replacement, so that 100% replacement of fish meal by canola meal significantly affected dry matter and moisture content of body (p>0.05). It was also revealed that replacement of fish meal by canola meal reduces AMMONIA EXCRETION by fish, hence reducing environmental impact of aquaculture effluents. Economic efficiency of the diets was also affected by levels of replacement, achieving a highest value at 75% of replacement. In general, results showed that the canola meal has a good replacement potential, and can substitute fish meal in rainbow trout diet up to 75 percent.

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APA: Copy

YAZDANPANAH, KOUROSH, EBRAHIMI, EISA, MAHBOOBI SOOFIANI, NASROLLAH, & SHAFAEIPOUR, ARIA. (2011). REPLACEMENT OF FISH MEAL BY CANOLA MEAL IN RAINBOW TROUT DIET FOR EVALUATION OF GROWTH AND AMMONIA EXCRETION. JOURNAL OF MARINE SCIENCES AND TECHNOLOGY, 9(4), 28-44. SID. https://sid.ir/paper/74554/en

Vancouver: Copy

YAZDANPANAH KOUROSH, EBRAHIMI EISA, MAHBOOBI SOOFIANI NASROLLAH, SHAFAEIPOUR ARIA. REPLACEMENT OF FISH MEAL BY CANOLA MEAL IN RAINBOW TROUT DIET FOR EVALUATION OF GROWTH AND AMMONIA EXCRETION. JOURNAL OF MARINE SCIENCES AND TECHNOLOGY[Internet]. 2011;9(4):28-44. Available from: https://sid.ir/paper/74554/en

IEEE: Copy

KOUROSH YAZDANPANAH, EISA EBRAHIMI, NASROLLAH MAHBOOBI SOOFIANI, and ARIA SHAFAEIPOUR, “REPLACEMENT OF FISH MEAL BY CANOLA MEAL IN RAINBOW TROUT DIET FOR EVALUATION OF GROWTH AND AMMONIA EXCRETION,” JOURNAL OF MARINE SCIENCES AND TECHNOLOGY, vol. 9, no. 4, pp. 28–44, 2011, [Online]. Available: https://sid.ir/paper/74554/en

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