Reasons for boar infertility

1.1 Malnutrition Long-term malnutrition, especially protein (such as: beans, fish meal, silkworm meal, blood meal, etc.), amino acids, vitamins (vitamin A, E, C, B, etc.), minerals (calcium, phosphorus, manganese) , iodine, selenium, etc.) Lack or deficiency, boars can cause infertility if they are too fat or too thin. 1.2 Diseased infertility such as viral infections (JE), bacterial infections (erysipelas, brucellosis), parasites in vivo and in vitro, toxoplasmosis, sunradigy, heat stroke, etc. may cause boar No sexual desire or lack of sexual desire. In addition, orchitis, epididymitis, seminal vesiculitis, dermatitis, dystrophy, arthritis, muscle pain, infertility, etc. can all cause mating difficulties or mating failure. 1.3 Poor semen quality Semen quality is poor, including azoospermia, low sperm density, poor sperm motility, or abnormal sperm. In addition to nutritional factors, the poor quality of semen is mostly the sequela of hot diseases, especially the pneumonia caused by pathogens such as erysipelas and toxoplasmosis, sunradiopathy, and testicular inflammation all can lead to decreased spermatogenesis. Decreased sperm motility. 1.4 functional infertility 1.4.1 The main cause of congenital genital hypoplasia or malformation (such as: cryptorchidism, testicular or epididymis is not developed, acute or chronic diseases caused by reproductive organ development). 1.4.2 Infertility due to sexual activity. The penis is severely injured or frightened when mated or harvested. The limbs have disorders, hindquarters or spinal arthritis. 1.4.3 When the boar is breeding, the libido does not thrive and the penis cannot be erect, which is also a cause of boar infertility. Such as excessive use or long-term no mating tasks, mixed polygamy, lack of exercise, body condition too fat, too thin, old and weak, mature body and immature or sexual maturity and the weight is not up to standard, the weather is too cold, overheating, etc. , can lead to no ejaculation or penis can not erect. 2 Prevention 2.1 Scientific feeding and management, reasonable exercise, reasonable use, proper adjustment and breeding, keeping the environment quiet and reducing outside interference. 2.2 Do a good job in disease prevention and control, lay a good shot for prevention, regularly drive internal and external parasites, strengthen pens and disinfect the environment. 2.3 Check the quality of semen regularly, find problems and analyze and treat them in time. 2.4 Congenital hypoplasia, malformation, or other injuries should be selected or eliminated as the case may be. 3 Treatment 3.1 Find out the cause and treat or treat it in a targeted manner. 3.2 intramuscular injection of testosterone phenylacetate 10 ~ 25mg, every 1d1 times, continuous 2 or 3 times. 3.3 intramuscular injection of 10-15ml of pregnant horse serum (allergic reactions are prone to repeated injections). 3.4 Injection of anterior pituitary gonadotropin or vitamin E. 3.5 Herbal prescription treatment: Epimedium 52g, psoralen 9g, cooked aconite 9g, stalactites 30g, schisandra 15g, dodder 30g juice plus rice wine 90g and brown sugar 60g, seasoning feed, every 1d1 agent, used 7d; Epimedium 25g, Yang Qishi 25g, Cistanche 20g, Cuscuta 20g, Dipsacus 20g, Eucommia 20g, Codonopsis pilosula 20g, Liquorice 20g, Radix Astragali 15g, Honeysuckle 15g, Plantain 15g, Jianshui Spices, 1d1, 1 Agent.