COMPARISON OF THE EFFECTS OF PHOTOPERIOD ON THE GROWTH PERFORMANCES IN THE RAINBOW TROUT (ONCHORHYNCHUS MYKISS) LARVAE AND JUVENILES

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HOSSEIN NAJDEGERAMI EBRAHIM; JAVAHERI MEHRAN

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Journal: JOURNAL OF SCIENCE (KHARAZMI UNIVERSITY) Year:2012 | Volume:12 | Issue:3 Page(s): 533-540

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Title

COMPARISON OF THE EFFECTS OF PHOTOPERIOD ON THE GROWTH PERFORMANCES IN THE RAINBOW TROUT (ONCHORHYNCHUS MYKISS) LARVAE AND JUVENILES

Author(s)

HOSSEIN NAJDEGERAMI EBRAHIM | JAVAHERI MEHRAN | Issue Writer Certificate

Keywords

PHOTOPERIODQ2

RAINBOW TROUTQ2

LARVAEQ2

JUVENILEQ3

Abstract

Light is one of the most important environmental factors in fish life. The effect of PHOTOPERIOD on the growth performances and survival of RAINBOW TROUT (Oncorhynchus mykiss) LARVAE and fingerlings was investigated in two consecutive experiments. In both experiments fish were exposed to four treatments (light: dark, L: D) (24L/0D, 16L/8D, 8L/16D, 0L/24D) in three replicates. The results of the first experiment indicated that PHOTOPERIOD affected the growth performances in larval stage of RAINBOW TROUT. The best weight gain and specific growth rate was observed in 24L: 0D and 16L: 8D without significant differences between them and the lowest rates was achieved in 0L: 24D. Also in second experiment, the effect of PHOTOPERIOD on the growth performances had significant difference and the highest growth rate and specific growth rate was observed in 8L: 16D and the lowest in 24L: 0D and 0L: 24D. Results showed that the effect of PHOTOPERIOD on RAINBOW TROUT, depends on developmental stage and LARVAE unlike fingerlings have better growth in longer light phases.

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APA: Copy

HOSSEIN NAJDEGERAMI, EBRAHIM, & JAVAHERI, MEHRAN. (2012). COMPARISON OF THE EFFECTS OF PHOTOPERIOD ON THE GROWTH PERFORMANCES IN THE RAINBOW TROUT (ONCHORHYNCHUS MYKISS) LARVAE AND JUVENILES. JOURNAL OF SCIENCE (KHARAZMI UNIVERSITY), 12(3), 533-540. SID. https://sid.ir/paper/44130/en

Vancouver: Copy

HOSSEIN NAJDEGERAMI EBRAHIM, JAVAHERI MEHRAN. COMPARISON OF THE EFFECTS OF PHOTOPERIOD ON THE GROWTH PERFORMANCES IN THE RAINBOW TROUT (ONCHORHYNCHUS MYKISS) LARVAE AND JUVENILES. JOURNAL OF SCIENCE (KHARAZMI UNIVERSITY)[Internet]. 2012;12(3):533-540. Available from: https://sid.ir/paper/44130/en

IEEE: Copy

EBRAHIM HOSSEIN NAJDEGERAMI, and MEHRAN JAVAHERI, “COMPARISON OF THE EFFECTS OF PHOTOPERIOD ON THE GROWTH PERFORMANCES IN THE RAINBOW TROUT (ONCHORHYNCHUS MYKISS) LARVAE AND JUVENILES,” JOURNAL OF SCIENCE (KHARAZMI UNIVERSITY), vol. 12, no. 3, pp. 533–540, 2012, [Online]. Available: https://sid.ir/paper/44130/en

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