The article presents data on the impact of the use of fodder yeast on the average daily live weight gain, slaughter yield, the ratio of edible and inedible parts, survival and biochemical status of Musck ducks. For the experiment, analog groups were formed, each receiving feed yeast in addition to their main diet. Muscovy ducks in the experimental and control groups were housed in cages of identical size, feeding and watering areas, and identical microclimate parameters. Feed yeast was added to the diet of Experimental Group 1 at a rate of 2%; feed yeast was added to the diet of Experimental Group 2 at a rate of 11%; and the third group received only the main diet, consisting of complete compound feed. Birds in the experimental groups demonstrated higher rates of average daily live weight gain throughout the experiment. The slaughter yield and edible parts ratio of Muscovy duck carcasses were also higher in the experimental groups. Blood biochemistry analysis revealed that ALT levels were above the reference range in all study groups, while blood urea levels were reduced. A decrease in alkaline phosphatase levels was observed in birds in the second experimental group. Total protein levels were significantly higher in the experimental group of Muscovy ducks that received 11%feed yeast in addition to their basic diet. Veterinary and sanitary assessments revealed no negative impact of feed yeast on meat quality.
veterinary and sanitary assessment, musk ducks, organoleptic studies, physicochemical studies
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