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  • Title: [Lactate dehydrogenase (LDH) and its isoenzymatic activity in the blood serum and in the meat of pigs with bronchopenumonia].
    Author: Georgiev P, Monov G.
    Journal: Vet Med Nauki; 1976; 13(9):74-80. PubMed ID: 1025850.
    Abstract:
    Studied was the activity of lactodehydrogenase (LDH) and its isoenzymes in pigs suffering from bronchopneumonia and its relation to the water absorption capacity of the meat obtained from them. The total activity of LDH is expressed in International Units (IU), it being converted into 1000.0 mg total protein in the case of meat. It has been found that in diseased pigs the activity of the serum DH rises up to 1380.45 IU from the normal level of 691.25 IU. The activity of this enzyme in musculus longissimus dorsi in diseased animals has proved to be more than twice as higher (256.35 IU) than that in the control group pigs (117.87 IU). Considerable rise in the activity of the LDH isoenzymes is found in the meat and blood serum samples from the affected pigs. Lower values of the water absorption capacity (23.73 per cent) of m. longissimus dorsi have been established in the diseased pigs as compared to the normalones (28.88 per cent) The results obtained show that the changes in the activity of LDH and its isoenzymes in the blood serum and musculature are characteristic of pigs affected with bronchopneumonia. These changes are valuable both for diagnostic purpose and for the evaluation of meat obtained from such animals.
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