Performance, carcass weight, total intestinal bacteria, and feed digestibility of broilers fed chicken foot-derived bioactive peptides

The aim of this study was to evaluate the supplementation of chicken claw-derived bioactive peptides on performance, carcass weight, total intestinal bacteria, and feed dry matter (DMD) and organic matter (OMD) digestibility of broilers. A completely randomized design and five repetitions were applied in this experiment. The research material consisted of 200 DOC strain CP-707 grown up to 35 days of age, and the biopeptide was produced by hydrolyzing chicken claws protein with a commercial papain enzyme. Bioactive peptides were added to feed treatments in amounts of 0, 2, 4, and 6%. The differences between treatments were tested using the honestly significant difference test. The addition of chicken claws biopeptides had a significant influence (P<0.01) on OMD and carcass weight, as well as a significant effect (P<0.05) on body weight gain, feed efficiency, DMD and total bacteria. Addition of chicken claws-derived peptides in rations up to 6% enhanced body weight gain, feed efficiency, carcass weight, DMD, OMD, and total intestinal bacteria in broiler chickens. Keywords: Biopeptides, Chicken, Claw, Digestibility, Carcass quality.