Effect of threonine and zinc alone or in combination on growth performance of broiler chickens

Safaa Abd Kamel; Yasser Jamal Jameel

doi:10.53730/ijhs.v6nS3.8775

Authors

Safaa Abd Kamel Department of Public Health, College of Veterinary Medicine, University of Kerbala, Iraq
Yasser Jamal Jameel Department of Public Health, College of Veterinary Medicine, University of Kerbala, Iraq

Keywords:

broiler, performance, immune response, intestinal morphology

Abstract

Broiler chickens' growth performance may be affected by the body health and the level of challenges; Therefore, this Study was aimed to evaluated the was aimed to investigate the effect of threonine(Thr.) from the jefo Co.Canada and zinc (Zn.) from the Zinpro Co.USA as an important factor that regulates intestinal amino acid metabolism. The experiment period was five weeks started from 7/12/2021 to 11/1/2022 carried out in special felid. A total of 200 straight run one-day broiler chickens (Ross 308) were divided randomly to four groups (50/group) with 2 replicates (25 birds/pen). The control group (CON.) fed basal diet without any additives. The second group was fed the basal diets with high level calculated (%0.9) Threonine. The third group was fed the basal diets with level calculated (% 0.1) Zinc. The fourth group was fed the basal diets with (% 0.9) Threonine and was fed the basal diets with (% 0.1) Zinc. Feed and water provided add libitum to the end of the study. The growth performance of broilers were varies greatly (P≤0.05) among (Thr-Zn), (Threonine) and (Zinc) in the feed intake, body weight, feed conversion ratio and body weight gain (P≤0.05) groups compared with (Con.).

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