EFFECT OF VARIOUS FORMS OF ZINC APPLIED IN CONCENTRATE MIXTURES FOR BROILER CHICKENS ON ITS BIOAVAILABILITY AS WELL AS MEAT COMPOSITION AND QUALITY
 
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Pol. J. Food Nutr. Sci. 2007;57(Special issue 4C):577–581
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ABSTRACT
This study focused on evaluation of bioavailability of zinc for broiler chickens from the inorganic (ZnO) and organic (Zn-glycine) forms of chemical bounds of this element. The Zn-glycine applied in mixtures contributed to the decrease of body weight and mortality of chickens, whereas feed conversion rate was similar in either group. On the other hand, in the chickens receiving Zn-glycine from feed, a higher proportion of breast and leg muscles as well as thick flanks in the carcass with their increased dressing percentage were observed. A higher fat content in the breast and leg muscles as well as a higher content of zinc in the breast and leg muscles, liver, kidneys, and the thigh bone were also found.
ISSN:1230-0322