AKEEL ABD AL-MJBEL*, ARKAN BARAA MOHAMMED AND AMMAR SSLAH ABDUL WAHID
Department of Animal Production, College of Agriculture, Tikrit University, Tikrit, Salahaldeen, 34001, Iraq
*(e-mail: akeelabd78@tu.edu.iq; Mobile: +964 77030 50432)
(Received: January 20, 2023; Accepted: February 26, 2023)
ABSTRACT
Study objective was to evaluate effects of dietary different levels of zinc-amino acid complex (ZAA) on
growth performance, physiological parameters and gut histomorphology on broiler (ROSS308). A total 180 birds were randomly assigned to three treatments (60 birds per treatment) and three replicates per treatment with 20 birds in each replicate). Diets were prepared using a basal diet, 120 and 140 mg/kg Zn amino acid complex. Treatments showed significance in growth performance with reduced feed intake in all zinc-amino acid complex supplemented treatments in comparison to the control. Glucose, triglycerides, ALT and AST showed non-significant effects among different treatments, otherwise, cholesterol was significant in treatments 120 and 140 mg/kg compared to the basal control. In conclusion, the results showed the zinc-amino acid complex supplementation in the basal diet significantly improved and enhanced for increased growth performance and gut histomorphology. It also showed impact on cholesterol serum level.
Key words : Broiler, cholesterol, growth performance, zinc-amino acid