Effect of different stocking densities on growth and survival of Patin (Pangasius hypophthalmus) larvae

Laura Mainin (2007) Effect of different stocking densities on growth and survival of Patin (Pangasius hypophthalmus) larvae. Universiti Malaysia Sabah. (Unpublished)


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An experiment was conducted to study the effects of different stocking densities on larvae growth and survival in Patin, Pangasius hypophthalmus. In this study, five treatments in triplicate were used namely; 10 tails/L, as control, and 20 tails/L, 30 tails/L 40 tails/L and also 50 tails/L. All the larvae were cultured in small aquariums. In each aquarium, larvae of zero days after hatching were cultured accordingly to the five treatments with triplicate. The water volume of each treatment was 7000 milliliter or 7 liter. The water quality parameters were monitored, such as dissolved oxygen (DO), pH, and water temperature (DC). In addition, the growth of larvae was also recorded in each treatment. Observation of larvae behaviour (cannibalism) indicated before the larvae became juvenile. The results showed that there were significant different (p<0.05) on the survival rate of Pangasius hypophthalmus larvae when analyses with one-way ANOV A but there were no significant different (p>0.05) on the larvae growth rate. The treatment of 10 tails/L larvae showed the highest in mean of survival rate, whereas, the treatment in 20 tails/L larvae showed the highest mean in growth rate. Cannibalism occurs during the early larvae stage. Therefore, this study suggested the best stocking density in maintaining the growth and survival of Pangasius hypophthalmus larvae is to be reared in the range of 10 tails/L larvae to 20 tails/L larvae with sufficient feeding and good quality management.

Item Type: Academic Exercise
Uncontrolled Keywords: stocking density, Patin, larvae growth, temperature, cannibalism, good quality management, water quality parameter
Subjects: S Agriculture > SH Aquaculture. Fisheries. Angling
Divisions: SCHOOL > School of Science and Technology
Date Deposited: 03 Dec 2013 04:45
Last Modified: 11 Oct 2017 03:13
URI: http://eprints.ums.edu.my/id/eprint/7706

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