Dairy goat mastitis is an important disease that seriously endangers the dairy industry and human health. The incidence rate is high. With the rise of the sheep farming industry, dairy goat mastitis has become a common disease. The invasion of pathogenic microorganisms is the main cause. There are many causes of dairy goat udder infection, such as trauma, poor stable hygiene, irregular milking, uncoordinated hormone secretion in dairy goats, and other postpartum diseases. Pathogenic microorganisms include more than 100 species such as bacteria and viruses. Common clinical streptococci, Staphylococcus aureus, Escherichia coli, etc., followed by infections of mycoplasma, pyogenic bacteria, and Brucella.

Acute mastitis develops rapidly, and the affected milk area is obviously red, swollen, hot and painful. Only a small amount of yellow or thin liquid can be squeezed out of the affected milk area. The body temperature of dairy goats rises, the spirit is depressed, and the appetite is reduced. On the goat B-ultrasound, different degrees of breast enlargement will be found.

Chronic mastitis is mostly caused by acute transformation, and the clinical symptoms are not obvious. There are milk lumps in the breast, which are thin and flocculent. The milk volume is reduced, the response to drugs is poor, and the efficacy is low. The uneven distribution of mammary glands can be seen on goat B-ultrasound.

In latent mastitis, there are no clinical manifestations. There are no visible abnormal changes in the breasts and milk, but the physical and chemical properties and bacteriology of goat milk change, such as an increase in self-cells in milk, a change from weakly acidic to alkaline milk, and a decrease in lactation. Subtle differences can also be found on goat B-ultrasound, but they need to be combined with other examinations to confirm the diagnosis.

Diagnosis: The breasts of the affected goats are congested and swollen to varying degrees, painful to touch and refusing to press, and lactation is reduced or stopped. There is no obvious change in the initial milk, but as the inflammation develops, the milk becomes thinner and yellow, and there are flocs and curds, and even pus and blood can be seen. The body temperature of the sick sheep rises, and the appetite is reduced or ablated. Ultrasound diagnosis, use goat B-ultrasound to diagnose its breasts. If uneven mammary imaging or mammary hyperplasia appears on goat B-ultrasound, mastitis should be considered.