Abstract Two experiments were conducted to evaluate the effects of acidification of drinking water with citric acid (CA) on growth performance, cecal pH, and cecal microflora of meat ducks. Preparing… Click to show full abstract
Abstract Two experiments were conducted to evaluate the effects of acidification of drinking water with citric acid (CA) on growth performance, cecal pH, and cecal microflora of meat ducks. Preparing tap water containing 5 concentrations of CA (0%, 0.021%, 0.034%, 0.068%, and 0.449%) to lower pH of the solutions from 7.80 (tap water) to 5.45, 4.45, 3.50, and 2.56 was assessed, respectively. A total of 120 1-d-old ducks in Exp. 1, and another 120 15-d-old ducks in Exp. 2 were randomly allocated to 5 drinking water treatments with 6 replicate cages of 4 ducks, respectively. The experimental period was from 1 to 14 d of age in Exp. 1, and was from 15 to 35 d of age in Exp. 2. In both experiments, drinking water administration of incremental concentrations of CA linearly and quadratically reduced (P
               
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