Document Type : Al-Qadisiyah Conference 2025
Authors
Department of Public Health, College of Veterinary Medicine, University of Al-Qadisiyah, Al-Diwaniyah City, Iraq.
Abstract
Zinc is important for poultry metabolism, immunity, and growth at trace levels. The purpose of this study was to assess the effect of organic and inorganic zinc supplementation in poultry’s diet on biochemical and hematological parameters. Thus, 300 one-day Ross 308 chicks were used in the experiment. The chicks were assigned in groups of one hundred for each treatment. The control treatment received no zinc supplementation and the first treatment (T1) received 250 mg with organic zinc acetate and the second treatment (T2) received 250 mg of inorganic zinc oxide. The experiment lasted 6 weeks with controlled conditions with food and water provided ad libitum. On the 42nd day of the experiment, blood samples were taken and analyzed for glucose (G), total proteins (Tp), triglycerides (Tg), cholesterol (C), uric acid (UA), creatinine (C), liver enzymes (ALT, AST, ALP), and hematological parameters (RBC, WBC, Hb, PCV). With the help of one-way and two-way ANOVA and Duncan’s test, it was established that organic zinc supplementation improved the total proteins, ALP, RBC, and Hb count while also effectively controlling blood glucose, cholesterol, triglycerides, and uric acid levels relative to control. Inorganic zinc produced moderate improvement in these indices. The biochemical stability and organic zinc group's clear and controlled results showed a 12–15% enhancement and a 10–14% improvement in the organic zinc group compared to the control group. Results further confirm the excellent physiological effectiveness and bioavailability of organic zinc, justifying its addition to commercial broiler diets to improve health and productivity.
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