Use of dried ground golden apple snail replacement of fish meal in diet for hybrid Clarias catfish (Clarias macrocephalus x Clarias gariepinus)
2001
Thepparath Ungsethaphand | Buncha Thongmee | Krasindh Hangsapreurke | Surit Somboonchai
Replacement of fishmeal (FM) protein with fried ground golden apple snail (DGGAS) was investigated in diets for hybrid Clarias catfish. Four practical diets were formulated to contain 35 percent protein and similar energy levels. The first diet was fourmulated to contain 30 percent FM and 0 percent DGGAS served as control diet. Diets 2-4 were formulated to contain 20, 10 and 0 percent FM, DGGAS was added in order to increasing percentages 10, 20 and 30 to the respective diets. A fourth diet, otherwise identical to the diet containing o percent FM and 30 percent DGGAS, The fish (initial body weight 6.06+-0.04 g) were stocked in 1.0*1.5*1.0 cubic m concrete tank within 200 fish/tank and were fed twice daily (09.00 and 15.00 h) and to visual satiety, during 120 days. After 120 days of the feeding trial, there were no significant (p0.05) differences in weight gain and percentage survival between the control and diets containing the DGGAS. However, fish fed Diet 4 had significantly (p0.05) lower specific growth rate (SGR) and higher feed conversion ratio (FCR) compared to fish fed control diet, but no difference compared to those fish fed all other diets. These results suggest that protein from DGGAS can be incorporated up to a level of 30 percent and totally replace FM in hybrid catfish diet without adverse effects on weight gain and percentage survival.
Show more [+] Less [-]AGROVOC Keywords
Bibliographic information
This bibliographic record has been provided by Kasetsart University