Infertility of ewes refers to various diseases caused by various reasons that result in the inability to breed ewes or temporarily prevent pregnancy. The causes of infertility in Liaoning cashmere goats and ewes are complex, and specific problems should be analyzed and treated accordingly during production. In summary, there are several main aspects to consider. And B-ultrasound can help analyze the condition of ewes.

Genital malformations, such as cervical atresia, vaginal stenosis, and intersex in ewes, are often caused by genetic factors or inbreeding and have no therapeutic value. They can be easily detected by sheep ultrasound and should be eliminated after detection.

Sheep B-ultrasound

The physical condition of ewes can be examined by ultrasound, and obesity or thinness can cause infertility in ewes. Some breeders will strengthen feeding and improve the nutritional level of their diet in order to increase the wool production of ewes. Sheep that are housed lack exercise and their consumption decreases. This practice often leads to excessive fat in the ewe, resulting in fat blocking the fallopian tubes and preventing the normal release and movement of eggs. The obstruction of uterine artery blood supply also affects fetal development. Once this phenomenon occurs, it is almost impossible to adjust to a normal state in the short term. Due to aging, diseases, and other factors, ewes may become excessively thin, resulting in abnormal secretion of hormones in their bodies or secretion levels that cannot meet the level of reproduction. The main manifestations are that ewes do not estrus or have short estrus duration, late estrus, intermittent estrus, sperm cannot function normally in the ewe's reproductive tract, egg development is poor, early embryo death, etc., which can be observed clearly on sheep ultrasound. Therefore, it is necessary to maintain good physical condition for breeding ewes. Sheep should be examined by B-ultrasound to maintain a medium to high fat condition. At the same time, they should exercise moderately and strengthen feeding management to reduce the proportion of infertility.

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