<![CDATA[Background: Feed is the largest cost component in duck farming, so alternative feed ingredients that are highly nutritious, economical, and readily available are needed. One potential ingredient is catfish waste meal as an alternative protein source in rations. Furthermore, it can increase the utility value of waste, support feed efficiency, and support the application of economic principles in the livestock sector. Peking ducks have high meat production potential, requiring a ration with adequate nutritional quality to support growth and carcass formation. Purpose: to determine the effect of the use of catfish waste flour in rations on feed consumption, slaughter weight, carcass weight, carcass percentage, and abdominal fat percentage of Peking ducks. Methods: This study used Peking ducks (Anas platyrhynchos domesticus) that were intensively raised and fed rations containing catfish (Clarias sp.) waste meal at levels of 0%, 7.5%, 10%, 12.5%, and 15%. The study was conducted using a Completely Randomized Design (CRD) with five treatments and four replications. The parameters observed included feed consumption, slaughter weight, carcass weight, carcass percentage, and abdominal fat percentage. Results: The results showed that the provision of catfish waste flour had a very significant effect (P<0.05) on feed consumption, slaughter weight, carcass weight, and abdominal fat percentage, but had no significant effect (P>0.05) on carcass percentage. Conclusion: The results of the study showed that increasing the level of catfish waste flour use up to 15% was able to increase ration consumption, slaughter weight, and carcass weight, but also increased the percentage of abdominal fat, while the carcass percentage remained relatively constant in all treatments.]]>
