Blood parameters in dermatitis of various etiologies in cattle

The purpose of the research is to identify a general pattern in the change in hematological and biochemical parameters in any lesions of cattle skin.

Materials and methods. The work was carried out in October-November 2021 in the conditions of farms in the Ipatovsky district of the Stavropol Territory on cattle aged 9–12 months and 90–120 kg of body weight. During the veterinary clinical examination, four groups of fve heads each were formed, one of the groups was a control. Animals of the control group had no clinical signs of dermatitis. The experimental groups of animals were divided depending on the degree of intensity of skin lesions into mild, moderate and generalized forms of manifestation of dermatitis. The results obtained were processed statistically.

Results and discussion. A veterinary clinical examination of this livestock made it possible to establish the dependence in case of damage to the skin not only in changes in temperature, respiratory rate and pulse, but also in blood parameters. The body temperature of calves with a generalized form of dermatitis increased by an average of 0.5 degrees, breathing increased by six units per minute, the pulse rate increased by 15–18 beats per minute. In calves with mild and moderate manifestation of dermatitis, these parameters did not have signifcant changes and were within the normal range. From hematological indicators, hemoglobin had a general tendency to decrease with increasing intensity of the lesion or aggravation of the pathological process. Such indicators as ESR, leukocytes, neutrophils, eosinophils, on the contrary, tended to increase, especially in the generalized form. The slowdown of erythropoiesis and thrombocytopenia in the generalized form of dermatitis is presumably associated with intoxication of the body of calves. An increase in ESR, the number of eosinophils indicates an inflammatory process occurring in the animal's body. From biochemical indicators, an increase in the level of bilirubin, AST and ALT, creatinine, alkaline phosphatase indicates toxic liver damage due to intoxication of the body of calves due to inflammatory factors and decay products of affected skin cells.

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