Effect of phytase and zinc supplementation on growth performance, haemato-biochemical and carcass attributes in broiler chicken

Ahmad Fahim; Alok Pal; Nazim Ali; Amit Kumar; D.S. Sahu; Debashis Roy; Akhilesh Kumar Verma; Mohd Faiz; Yashesh Singh

doi:10.56093/ijans.v95i12.173867

Authors

Ahmad Fahim College of Veterinary & Animal Sciences Sardar Vallabhbhai Patel University of Agriculture & Technology Meerut (U.P.)- 250110 INDIA
Alok Pal
Nazim Ali
Amit Kumar
D.S. Sahu
Debashis Roy
Akhilesh Kumar Verma
Mohd Faiz
Yashesh Singh

https://doi.org/10.56093/ijans.v95i12.173867

Keywords:

Broiler chicken, Phytase, Zinc, Growth performance, Feed conversion ratio

Abstract

The present study evaluated the effect of phytase supplementation with or without dietary zinc (Zn) on growth performance, feed utilization, blood biochemical parameters, and carcass attributes of broiler chickens. A total of 180 day-old Cobb chicks were randomly allocated into five dietary treatments: control (basal diet without phytase and Zn), P₆₀₀ (phytase 600 U/kg feed), PZ₆₄₀ (phytase 600 U/kg + Zn 40 mg/kg), P₈₀₀ (phytase 800 U/kg), and PZ₈₄₀ (phytase 800 U/kg + Zn 40 mg/kg). Each treatment consisted of three replicates of 12 birds, reared for five weeks under uniform management. Results indicated that phytase supplementation significantly (p < 0.01) improved body weight gain and feed conversion ratio (FCR) compared to the control, with maximum improvement observed in the PZ840 group. Birds fed phytase with Zn exhibited superior growth and feed efficiency compared to phytase alone. Blood biochemical analysis revealed increased total protein, reduced uric acid, and elevated alkaline phosphatase (ALP) activity in phytase- and Zn-supplemented groups, indicating enhanced protein metabolism and mineral utilization. Although serum cholesterol and liver enzymes (SGPT and SGOT) were elevated at higher phytase levels, values remained within normal physiological ranges. The results suggest a synergistic effect of phytase and Zn in improving nutrient availability, growth performance, and metabolic efficiency in broilers, while potentially reducing environmental excretion of phosphorus and zinc.

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Author Biography

Ahmad Fahim, College of Veterinary & Animal Sciences Sardar Vallabhbhai Patel University of Agriculture & Technology Meerut (U.P.)- 250110 INDIA

Asst. Professor (Livestock Production Management)College of Veterinary & Animal SciencesSardar Vallabhbhai Patel University of Agriculture & TechnologyMeerut- 250110Mob No: 9368569568

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