Analysis of somatic cell count in milk of cows chronically infected with Coxiella burnetii
2011
Radinović, M., Faculty of Agriculture, Novi Sad (Serbia) | Boboš, S., Faculty of Agriculture, Novi Sad (Serbia) | Pajić, M., Faculty of Agriculture, Novi Sad (Serbia) | Davidov, I., Faculty of Agriculture, Novi Sad (Serbia)
Various infectious agents who are present in the animals can directly- existence of changes in the mammary gland, or indirectly-increased number of leukocytes in the systemic circulation, leading to an increase in the number of somatic cells in milk. Q fever is a rickettsial disease that is most common in home and abroad. Infected cows usually suffer asymptomatic, and clinically observable changes can be abortions, reduced fertility, low vital offspring, mastitis, ceratoconuctivitis, bronchopneumonia. The influence of infection with Coxiella burnetii on the movement of somatic cells in the infected cow was tested on a group of Holstein-Friesian cows. For most cows we observed an increase in the number of somatic cells. Somatic cells in milk samples ranged from 103 000 to 2 000 000 per ml of milk. Average somatic cell count in all milk samples was 853 000.
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