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This study evaluated duck growth, health, and welfare in response to water supplementation with organic acid (OA) and oregano oils (OOs) in Pekin duck. The treatments used in this study included a control (CON) treatment with no water additives given, an OA treatment (ProPhorce Exclusive NC®), and an OO treatment (Nubiotic 4X Concentrate®). The OA and OO improved the feed conversion ratio (FCR) and body weight (BW) (p 0.05). In conclusion, these experiments indicate that OA and OO can be used to improve duck growth, feed efficiency, stress susceptibility, and bird welfare.
Rocha et al. (2024) studied this question.