Fermented cassava bioethanol waste as substitute of protein in diet for growth performance and carcass evaluation on meat ducks
The effect of dietary supplementation with fermented cassava bioethanol waste (FCBW) on the growth performance and meat quality was evaluated in 80 15-day-old male Cherry Valley meat ducks with an initial body weight (BW) of 250.67 ± 7.50 g. The experiment has 5 replications and 4 treatments and 4 ducks per treatment. Four groups (groups I, II, III, IV) supplemented with 0%, 5%, 10%, and 15% FCBW substituted for part of maize, soybean meal, and bran in basal diet and were fed for 29 days; the metabolizable energy and content of lysine in the four groups were equal. The results indicated that there were no significant differences in average daily weight gain and average daily feed intake among the four groups (P > 0.05). The digestibility rate of dry matter, ash, and phosphorus in group IV was significantly lower than that in group I by 5.23%, 6.25%, and 6.40% respectively (P < 0.05), but the digestibility rate of crude fat was significantly higher than that in group I by 8.30% (P < 0.05). No significant differences were presented among different levels of FCBW supplementation in carcass yield, eviscerated carcass yield, and semi-eviscerated carcass yield (P > 0.05), but 5% FCBW can improve the carcass yield relatively. In conclusion, with dietary supplementation of 5% FCBW, a better growth performance in meat ducks could be achieved.
KeywordsDigestibility rate Fermented cassava bioethanol waste Growth performance Meat duck Meat quality
Compliance of ethical standards
Conflict of interest
The authors declare that they have no conflict of interest.
Animals involved in this study were cared for according to the guidelines of Animal Care and Use Committee of Wuhan Polytechnic University. All standard procedures concerning animal care and management were taken throughout the whole experiment.
Informed consent was obtained from all individual participants included in the study.
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