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Bui Xuan Men et al., 1995. Livest. Res. Rural Dev., 7 (3)

Document reference 
Bui Xuan Men ; Ogle, B. ; Preston, T. R., 1995. Use of duckweed (Lemna spp) as replacement for soya bean meal in a basal diet of broken rice for fattening ducks. Livest. Res. Rural Dev., 7 (3)

An experiment was conducted at Cantho University to determine the effects of feeding duckweed (Lemna sp.) replacing the roasted soya beans in diets based on broken rice for crossbred meat ducks. The trial included five treatments, with four replicates and 10 ducks per replicate (pen). The five diets were based on broken rice ad libitum supplemented with 27 g/day roasted soya beans (control D0) or 19, 15, 12 or zero g/day soya beans with ad libitum fresh duckweed (D30, D45, D60 and D100). These diets were fed to growing crossbred ducks (Czechoslovak x Cherry Valley hybrids) from 28 to 63 days of age, when two birds (one male and one female) per pen were slaughtered for carcass evaluation.

Daily feed intakes were 95, 108, 108, 105 and 107g DM and daily live weight gains were 26.1, 29.1, 28.3, 27.1, 27.6g for control, D30, D45, D60 and D100, respectively. Corresponding feed conversion ratios were 3.7, 4.2, 4.2, 4.1, and 4.2.There were no significant differences in the carcass traits between treatments. The diet with 100% replacement of soya beans by duckweed was the most profitable for the farmer.

Citation key 
Bui Xuan Men et al., 1995