Fodder fish oil was applied in starter and grower mixes in the following quantities: 0 (Group I, control), 3 (Group II), and 5% (Group III), for 42-day period of experiment. The chickens were evaluated for production performance (gains, feed intake, mortality) and post-slaughter quality (carcass evaluation). Breast and thigh muscles were subjected to sensory analysis (colour, taste, smell, tenderness, juiciness) and physicochemical parameters (dry matter content, crude fat content, total cholesterol, and pH). As a result, we found that fish oil can be applied in broiler feeding, however in small quantities (max. 3%) and not later than until 7 days before slaughter.

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