EFFECTS OF DIFFERENT LEVELS OF CANOLA MEAL ON GROWTH, BODY COMPOSITION AND BIOCHEMICAL PARAMETERS IN RAINBOW TROUT (ONCORHYNCHUS MYKISS)

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SHAFAIEIPOUR A.; YAVARI V.; GHOFLEH MARAMAZI J.; FALAHATKAR B.; GORJIPOUR E.A.

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Journal: Iranian Scientific Fisheries Journal Year:2009 | Volume:18 | Issue:1 Page(s): 81-100

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Title

EFFECTS OF DIFFERENT LEVELS OF CANOLA MEAL ON GROWTH, BODY COMPOSITION AND BIOCHEMICAL PARAMETERS IN RAINBOW TROUT (ONCORHYNCHUS MYKISS)

Author(s)

Keywords

CANOLA MEALQ3

THYROIDAL HORMONESQ3

CHOLESTEROLQ3

RAINBOW TROUTQ2

FEEDINGQ3

Abstract

Rainbow trout with initial body weight 4.16±0.25g were fed diets that contained crude protein 42%; gross energy 4400Kcal/kg DM; crude fat 10% including graded levels of CANOLA MEAL (CP 35% DM). A growth trial was conducted over 16 weeks at a water temperature of 12±1°C. At the end of the growth trial, in addition to body composition analyses, plasma triiodothyronine (T3) and thyroxin (T4), CHOLESTEROL and liver fatty acid composition were measured. Replacement of fish meal with CANOLA MEAL (10 to 57% replacement) did not significantly affect the growth performance (P>0.05). At 16th week, plasma CHOLESTEROL levels were reduced in fish fed with all diets in comparison to 8th week. Plasma T4 levels were significantly higher in the CANOLA MEAL-fed fish sampled after 16 weeks, but no significant differences in T3 levels were obtained (P>0.05). Proximate composition was affected by dietary treatments. The liver fatty acid composition reflected that of the fish fed with CANOLA MEAL diet has a higher level of polyunsaturated (n-6) fatty acids compared to the control group in which a higher content of n-3:n-6 ratio was seen as opposed to the treatment. With increasing CANOLA MEAL in diets, the cost of final food was reduced. This study showed that CANOLA MEAL has potential to replace substantial levels of fish meal in diets for carnivorous fish without compromising performance.

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APA: Copy

SHAFAIEIPOUR, A., YAVARI, V., GHOFLEH MARAMAZI, J., FALAHATKAR, B., & GORJIPOUR, E.A.. (2009). EFFECTS OF DIFFERENT LEVELS OF CANOLA MEAL ON GROWTH, BODY COMPOSITION AND BIOCHEMICAL PARAMETERS IN RAINBOW TROUT (ONCORHYNCHUS MYKISS). IRANIAN SCIENTIFIC FISHERIES JOURNAL, 18(1), 81-100. SID. https://sid.ir/paper/4302/en

Vancouver: Copy

SHAFAIEIPOUR A., YAVARI V., GHOFLEH MARAMAZI J., FALAHATKAR B., GORJIPOUR E.A.. EFFECTS OF DIFFERENT LEVELS OF CANOLA MEAL ON GROWTH, BODY COMPOSITION AND BIOCHEMICAL PARAMETERS IN RAINBOW TROUT (ONCORHYNCHUS MYKISS). IRANIAN SCIENTIFIC FISHERIES JOURNAL[Internet]. 2009;18(1):81-100. Available from: https://sid.ir/paper/4302/en

IEEE: Copy

A. SHAFAIEIPOUR, V. YAVARI, J. GHOFLEH MARAMAZI, B. FALAHATKAR, and E.A. GORJIPOUR, “EFFECTS OF DIFFERENT LEVELS OF CANOLA MEAL ON GROWTH, BODY COMPOSITION AND BIOCHEMICAL PARAMETERS IN RAINBOW TROUT (ONCORHYNCHUS MYKISS),” IRANIAN SCIENTIFIC FISHERIES JOURNAL, vol. 18, no. 1, pp. 81–100, 2009, [Online]. Available: https://sid.ir/paper/4302/en

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