VITAMIN C SUPPLEMENTATION TO RAINBOW TROUT (ONCORHYNCHUS MYKISS) DIET AND ANALYSIS OF GROWTH INDICES, SURVIVAL AND CARCASS COMPOSITION AT TWO DIFFERENT STOCKING DENSITIES

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FAZAEI Z.; SAJJADI M.M.; SOURINEJAD I.; ASADI R.

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Journal: Journal of Veterinary Research Year:2015 | Volume:70 | Issue:1 Page(s): 55-62

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Title

VITAMIN C SUPPLEMENTATION TO RAINBOW TROUT (ONCORHYNCHUS MYKISS) DIET AND ANALYSIS OF GROWTH INDICES, SURVIVAL AND CARCASS COMPOSITION AT TWO DIFFERENT STOCKING DENSITIES

Author(s)

FAZAEI Z. | SAJJADI M.M. | SOURINEJAD I. | ASADI R. | Issue Writer Certificate

Keywords

DIETQ2

GROWTH INDICESQ1

INTENSIVE CULTUREQ2

RAINBOW TROUT (ONCORHYNCHUS MYKISS)Q2

VITAMIN CQ2

Abstract

BACKGROUND: VITAMIN C is one of the important nutrients in fish culture and as a potent anti-oxidant, is of great importance in preserving cells against oxidation and boosting resistance in stress conditions and against pathogens.OBJECTIVES: The purpose of the present study is to add high level of VITAMIN C supplementation to rainbow trout (Oncorhynchus mykiss) DIET reared at high density and analysis of GROWTH INDICES, survival and carcass composition at two different stocking densities.METHODS: Rainbow trout juveniles with initial body weight of 9.6±0.69 g at two densities of 50 and 100 pieces in 50 liters of water were fed two DIETs containing the same level of protein and fat. Experimental DIETs were DIET 1 without adding vitamin and DIET 2 with adding 1500 mg/kg of VITAMIN C. A total number of 900 rainbow trout juveniles in four treatments each with three replicates as T50 (0) (with the density of 50 and fed with DIET 1), T100 (0) (with the density of 100 and fed with DIET 1), T50 (C) (with the density of 50 and fed with DIET 2) and T100 (C) (with the density of 100 and fed with DIET 2) were randomly distributed in incubators.RESULTS: After 6 weeks of feeding, GROWTH INDICES, feed conversion ratio and viability were significantly different between treatments (p<0.05). T50 (0) and T50 (C) treatments had higher weight gain, specific growth rate and viability than T100 (0) and T100 (C) (p<0.05). In the case of feed conversion ratio, it was higher in T100 (0) and T100 (C) treatments compared to T50 (0) and T50 (C) ones (p<0.05). Carcass composition was not significantly different between treatments (p>0.05).CONCLUSIONS: The results showed that VITAMIN C supplementation in the DIET of rainbow trout juveniles did not have significant effects on GROWTH INDICES, feed conversion ratio, survival and carcass composition but density was a key factor in growth, feed conversion ratio and survival in this species.

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APA: Copy

FAZAEI, Z., SAJJADI, M.M., SOURINEJAD, I., & ASADI, R.. (2015). VITAMIN C SUPPLEMENTATION TO RAINBOW TROUT (ONCORHYNCHUS MYKISS) DIET AND ANALYSIS OF GROWTH INDICES, SURVIVAL AND CARCASS COMPOSITION AT TWO DIFFERENT STOCKING DENSITIES. JOURNAL OF VETERINARY RESEARCH, 70(1), 55-62. SID. https://sid.ir/paper/35184/en

Vancouver: Copy

FAZAEI Z., SAJJADI M.M., SOURINEJAD I., ASADI R.. VITAMIN C SUPPLEMENTATION TO RAINBOW TROUT (ONCORHYNCHUS MYKISS) DIET AND ANALYSIS OF GROWTH INDICES, SURVIVAL AND CARCASS COMPOSITION AT TWO DIFFERENT STOCKING DENSITIES. JOURNAL OF VETERINARY RESEARCH[Internet]. 2015;70(1):55-62. Available from: https://sid.ir/paper/35184/en

IEEE: Copy

Z. FAZAEI, M.M. SAJJADI, I. SOURINEJAD, and R. ASADI, “VITAMIN C SUPPLEMENTATION TO RAINBOW TROUT (ONCORHYNCHUS MYKISS) DIET AND ANALYSIS OF GROWTH INDICES, SURVIVAL AND CARCASS COMPOSITION AT TWO DIFFERENT STOCKING DENSITIES,” JOURNAL OF VETERINARY RESEARCH, vol. 70, no. 1, pp. 55–62, 2015, [Online]. Available: https://sid.ir/paper/35184/en

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