Effects of animal origin feeds and frequency of feeding on growth survival and cannibalism in Wallago attu (Bloch Schneider) larvae during hatchery rearing

Sahoo S. K., . and Giri S. S., . and Gupta S. D., . and Sahu A. K., . Effects of animal origin feeds and frequency of feeding on growth survival and cannibalism in Wallago attu (Bloch Schneider) larvae during hatchery rearing. pp. 66-74. ISSN 0116-6514

The growth survival and cannibalism of Wallago attu larvae were assessed using different animal origin feeds and frequency of feeding during hatchery rearing. The weight (18911.85 mg) attained by the larvae fed on goat liver was significantly higher (P 0.05) than those fed on plankton (1204.36 mg) fish (1256.66 mg) and molluscs (1394.06mg). The specific growth rate percent weight gain and final weight were similar for the other feeds. The final length weight and specific growth rate were highest in larvae fed once per day followed by larvae fed 2-times 3-times and 4-times per day but overall biomass production was greatest at 3 or 4 feeds per day compared to feeding once a day. The percent survival increased significantly (P 0.05) with increase of feeding frequency. More than 50 survival was observed in larvae fed 3-4 times a day with goat liver compared to 27 in larvae fed once a day. An inverse relation was also observed between feeding frequency and percent cannibalism.Therefore goat liver is considered to be the best feed and resulted in lower cannibalism and increased survival during indoor rearing of W. attu larvae when fed 3-4 times aday.

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Abstract

The growth survival and cannibalism of Wallago attu larvae were assessed using different animal origin feeds and frequency of feeding during hatchery rearing. The weight (18911.85 mg) attained by the larvae fed on goat liver was significantly higher (P 0.05) than those fed on plankton (1204.36 mg) fish (1256.66 mg) and molluscs (1394.06mg). The specific growth rate percent weight gain and final weight were similar for the other feeds. The final length weight and specific growth rate were highest in larvae fed once per day followed by larvae fed 2-times 3-times and 4-times per day but overall biomass production was greatest at 3 or 4 feeds per day compared to feeding once a day. The percent survival increased significantly (P 0.05) with increase of feeding frequency. More than 50 survival was observed in larvae fed 3-4 times a day with goat liver compared to 27 in larvae fed once a day. An inverse relation was also observed between feeding frequency and percent cannibalism.Therefore goat liver is considered to be the best feed and resulted in lower cannibalism and increased survival during indoor rearing of W. attu larvae when fed 3-4 times aday.

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Item Type:	Article
AGROVOC Term:	Cannibalism
AGROVOC Term:	Hatcheries
AGROVOC Term:	Feeds
AGROVOC Term:	Feeding frequency
AGROVOC Term:	Survival
AGROVOC Term:	Wallago attu
AGROVOC Term:	Rearing techniques
AGROVOC Term:	Larvae
AGROVOC Term:	Growth rate
AGROVOC Term:	Liver as food
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:28
URI:	http://webagris.upm.edu.my/id/eprint/23718

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