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Impact of Echinococcosis on Quality of Sheep Meat in the South Eastern Kazakhstan

  • Valieva, Z. ;
  • Sarsembaeva, N. ;
  • Valdovska, A. ;
  • Ussenbayev, A.E.
  • Received : 2013.07.02
  • Accepted : 2013.09.29
  • Published : 2014.03.01

Abstract

A survey of 2,123 slaughtered adult sheep in markets of the south-east Kazakhstan established that the average contamination of animals by Echinococcus granulosus is 9.1% with primary localization of cysts in livers and lungs. The histologic structure of the muscle tissue of infected sheep displayed destructive changes with a prevalence of granular dystrophy. The amount of protein, fat, calcium and energetical value of such meat considerably decreased. Besides in the muscle tissue of the animals infected with echinococcosis there was a substantial increase of humidity and amount of ash as well as qualitative and quantitative changes of the amino acids profile. Along with damage to the synthesis of proteins and sharp insufficiency of vitamins A, E, $B_1$, and $B_2$ there was a shift in a lipidic exchange that was expressed as a noticeable reduction in the level of monounsaturated and polyunsaturated fatty acids. The data support the conclusion that the meat from the sheep infected with echinococcosis is of inferior quality and quantity compared to that of healthy animals.

Keywords

Echinococcus;Sheep;Mutton;Kazakhstan

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