Abstract

Abstract This study aimed to evaluate the impact of dietary Spirulina supplementation on the production performance of Joper chickens, with or without a Salmonella sp. challenge. A total of 120 two-week-old Joper chickens were randomly assigned to six dietary treatments in a completely randomized design with a 2 × 3 factorial arrangement. The treatments were as follows: P0So = 100% control diet without Salmonella infection; P1So = 97% control diet plus 3% Spirulina without Salmonella infection; P2So = 94% control diet plus 6% Spirulina without Salmonella infection; P0Si = 100% control diet with Salmonella infection; P1Si = 97% control diet with 3% Spirulina with Salmonella infection; and P2Si = 94% control diet with 6% Spirulina with Salmonella infection. Each treatment had four replicates, with five chickens per replicate. Feed was provided ad libitum for six weeks, and drinking water was always available. The results show that Salmonella infection, Spirulina supplementation levels, and their interaction had no significant effect (P > 0.05) on feed consumption, body weight gain, or feed conversion. However, the feed conversion of chickens fed on the diet containing 6% Spirulina tended to be better.

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