NDLI: Preliminary Studies on the Effect of Prey Length on Growth, Survival and Cannibalism of Larval Snakehead, Channa striatus (Bloch, 1793)

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Preliminary Studies on the Effect of Prey Length on Growth, Survival and Cannibalism of Larval Snakehead, Channa striatus (Bloch, 1793)

Content Provider	Semantic Scholar
Author	War, Mehrajuddin Altaff, Kareem
Copyright Year	2014
Abstract	Larval snakehead Channa striatus were fed with three cladocerans (Ceriodaphnia cornuta, Moina micrura and Daphnia carinata) and Artemia nauplii at the rate (500 Ind./Fish -day ) to record growth, survival and cannibalism. Experiments were carried out for 30 days in 40 L tanks each filled with 30 L water. Fish fed Artemia nauplii and C. cornuta showed better results during the first 10 days whereas less growth and more cannibalism was seen in the last 10 days of the experimental period. Fish fed D. carinata and M. micrura showed the highest weight gain (15.24±0.11mg) and (13.56±1.10 mg), respectively, in the last 10 days of the experimental period but showed significantly less growth and survival (71.66±1.54 %) and (74.66±2.02 %), respectively, during the first 10 days. No cannibalism was observed during the first 10 days of experiment, whereas more cannibalism was seen in the last ten 10 days when compared to the results of first 20 days of the experiment with significant differences between the 4 different live feed organisms used for feeding the fish. It was concluded that with the increase in size, fish prefers large sized prey than the smaller ones and must be provided with prey of larger size to get better results, otherwise it will lead to less growth and more cannibalism. Cannibalism can be reduced at different stages by providing prey of suitable size to the growing fish but cannot be avoided completely unless little size differences are obtained by regular sorting.
Starting Page	9
Ending Page	15
Page Count	7
File Format	PDF HTM / HTML
Volume Number	46
Alternate Webpage(s)	http://www.zsp.com.pk/pdf46/9-15%20(2)%20PJZ-1090-12%2015-1-14%20Revised%20Manuscript.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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