Infertility of male dogs is actually the same as infertility of female dogs. It means that male dogs cannot inseminate or their sperm cannot fertilize the egg. There are many types of male dogs infertility, including primary infertility, low fertility and acquired infertility.

1. Causes of male dog infertility:

Compared with female dog infertility, the causes of male dog infertility are more complicated.

1. High temperature stress. When the temperature of the testicles rises to the same temperature as the body temperature, the sperm in it will lose its vitality. For a while, the testicles will lose their ability to produce sperm.

2. Local anemia. When the testicles are torsional, the amount of blood supplied to the testicles will be greatly reduced, causing severe anemia, which will affect the sperm-generating ability of the testicles. In addition, the arterial flow of the Huwan pill is reduced, and even if the time is short, more than half of the cells that produce testosterone can be damaged.

3. Autoimmunity. When the testicles are damaged, sperm overflows, causing the autoimmune system to produce antibodies, which sensitizes white blood cells and causes local immune response. The binding of antigen antibodies greatly reduces the fertilization ability.

4. Chemical substance poisoning. For example, zinc can cause severe necrosis of testicular interstitial cells and triflephrine; drugs such as chloroglycerol and alkyl compounds (chlorobenzene, amine phosphate) can cause pathological changes in the testicles and epididymis; divophilin B, estrogen, and antiestrogen can cause testicular atrophy; anti-tumor mitotic agents such as phosphothymidine and vincrisine can inhibit testicular cell division.

2. Treatment of male dogs infertility:

1. For male dogs with reproductive organ diseases or systemic diseases, corresponding treatment should be carried out for the primary disease: congenital infertility and aging infertility generally have no therapeutic value, and except for precious breeds, they are generally eliminated.

2. For infertility caused by feeding management, it can improve feeding management, strengthen exercise, and provide adequate and balanced food; for infertility caused by poor semen quality and impotence, in addition to strengthening feeding management and taking corresponding measures for the cause, testosterone, serum gonadotropin or human chorionic gonadotropin can also be tried according to the condition.

3. For male dogs with sexual desire, they can take 10 mg of methyl testosterone (methylgaowanketone) or intramuscular injection of testosterone propionate (testosterone propionate) 20~50 mg/time.