Morpho-biochemical screening for acute serous mastitis in sheep

Despite significant achievements in the agricultural sector, the problem of mastitis in sheep continues to be one of the most relevant for veterinary science and practice. Therefore, in current conditions, the solution of diagnosis, therapy, and prevention of this disease is urgently needed. The article presents morphological and biochemical parameters of sheep blood in acute serous mastitis. The research was at “Belozernoe” of the Salsk district of the Rostov region, with a total number of sheep of 956 heads. The complex of clinical and laboratory studies was performed on 12 sheep of the Sokolskaya breed (at the age of 2-3 years), with signs of acute serous mastitis. The control group consisted of clinically healthy sheep aged 2-3 years. In a clinical study of sheep, the researchers focused on the general condition, body temperature, heart rate, respiration, and scar movement in two minutes. The study has shown that in serous mastitis, there is an increase in body temperature to 40.5-40.9°C, pulse rate to 95 beats per minute, and respiration - up to 40 respiratory movements per minute. The frequency of scar contractions was 3-6 times in two minutes. During the clinical examination, the affected half of the sheep’s udder was enlarged 3-4 times in volume, compacted, the skin is tense, and the breast nipple is slightly enlarged and flaccid. The supravyminal lymph node enlarged in volume by 1.5-2 times, and the sick sheep reacted painfully to palpation. At the beginning of the inflammation, milk from the affected lobe had a white color. When the disease passed into a more severe form, it became watery with an admixture of blood. As a rule, severe mastitis was acute. There was a partial loss of appetite. The researchers established that acute serous mastitis in sheep is clinically manifested by depression, subfebrile or febrile increase in body temperature, moderate tachypnea, and tachycardia. In the blood of sheep with acute serous mastitis, there is a significant decrease in the number of red blood cells and hemoglobin. A pronounced neutrophilic leukocytosis develops with a simple shift of the regenerative nucleus to the left against the background of moderate eosinophilia. In the blood serum of sheep with acute mastitis, dysproteinemia is detected, characterized by a moderate decrease in albumin concentration and a significant increase in the content of alpha-globulins. In the blood serum of sick sheep, the concentration of iron also significantly decreases, and the content of copper increases.

inflammation, mastitis, biochemical analytes, lipid peroxidation, antioxidant system, sheep

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