Author(s): N Prabhuraja, BU Umesh, HC Indresh and BG Veeranna Gowda

Abstract: The experimental study was conducted to evaluate phytase enzyme supplementation on mineral composition in blood and bone and economy in 120 Cobb broilers up to 42 days of age. The study includes four different types of dietary treatments, they are T₁ control group (0.45% available phosphorus) as per Bureau of Indian standards 2007, T₂ low phosphorous diet (0.35% available phosphorus + 0.01% Phytase 5,000 FTU), T₃ low phosphorus diet (0.30% available phosphorus + 0.02% Phytase 5,000 FTU) and T₄ low phosphorus diet (0.25% available phosphorus + 0.03% Phytase 5,000 FTU). The result showed there is no significant difference (p>0.05) in calcium and phosphorous mineral composition of both blood serum and tibia bone between control group and phytase supplemented low phosphorus groups. There is significant difference (p≤0.05) in economics in terms of cost of production between control group and phytase supplemented low phosphorus groups. In conclusion, the supplementation of phytase in low phosphorous diet may decrease the production cost and gives higher returns over investment but it could not effect on mineral composition of blood and bone.

DOI: 10.33545/26174693.2024.v8.i4Sg.1046