INDICIES OF QUALITY AND SAFETY OF MEAT AND EGGS OF LAYING HENS AT CHRONIC POISONING BY LEAD ACETATE
К. A. Lapteva
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National Scientific Center «Institute of Experimental and Clinical Veterinary Medicine» 83, Pushkinskaya Str., Kharkiv, 61023, Ukraine
Results of theestimation of quality and safety indicies of meat and eggs of laying hens at chronic poisoning by lead acetate are presented in the article.By the results of veterinary and sanitary estimation it has been determined that lead acetate in the doses of 75, 150 and 300 ppm per kg of feed under the chronic experiment conditions do not effect on organoleptic indices of meat, but results in a rejection of concentration of hydrogen ions (pH) from 5,48±0,13 to 6,19±0,05 for white muscles and 5,97±0,03–6,39±0,08 for red muscles of hens. By the indicies of safety of eggs it has been determined excess to content of toxic elements, namely, lead. It has been determined that lead acetate in the doses of 75, 150 and 300 ppm per kg of feed results in maximum content of lead in egg shell of hens of I, II and III experiment groups: on the 30th in 3,0; 4,33 and 5,93 times; on 60th and 90th days in 7,25; 13,06 and 17,81 times and 25,18; 37,64 and 43,55 times respectively. At 14 days after stoppage injection of toxicant it has been determined maximum accumulation of lead in hen's egg shell of I, II and III experiment groups in 24,06; 24,75 and 27,19 times respectively.
Key words: QUALITY, SAFETY, LAYING HENS, MEAT, EGGS, ALBUMEN, YOLK, SHELL, POISONING, LEAD
