Georgiev P, Monov G
Vet Med Nauki. 1976;13(9):74-80.
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.
研究了患支气管肺炎猪的乳酸脱氢酶（LDH）活性及其同工酶，以及它们与所获猪肉吸水能力的关系。LDH的总活性以国际单位（IU）表示，在肉类情况下换算为每1000.0毫克总蛋白中的活性。已发现，患病猪血清中LDH的活性从正常水平的691.25 IU升至1380.45 IU。患病动物背最长肌中该酶的活性已被证明比对照组猪（117.87 IU）高出两倍多（256.35 IU）。在患病猪的肉和血清样本中发现LDH同工酶的活性大幅升高。与正常猪（28.88%）相比，患病猪背最长肌的吸水能力较低（23.73%）。所得结果表明，血清和肌肉组织中LDH活性及其同工酶的变化是患支气管肺炎猪的特征。这些变化对于诊断目的以及评估从此类动物获得的肉都很有价值。
