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| Barriers to prevention and management techniques breeding cows |
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Milk (mother) dairy cattle breeding barriers that can not be normal estrus, pregnancy or pregnancy, and so on. Cow reproductive failure caused by many reasons, a common disease with cow's uterus, ovarian dysfunction, inappropriate human action. In addition, nutritional imbalance, seasonal (especially in hot season) factors may also cause infertility.
Uterine disease is the most common breeding barriers. Cow uterine infection, prone to inflammation, inflammatory exudate, seriously when purulent secretions, not only damage the environment within the uterus, resulting in sperm and eggs can not conceive, but also may be due to long-term inflammatory stimuli, causing the mother bovine endocrine disorders, leading to ovarian dysfunction, and even systemic disease. Must take effective preventive and treatment methods:
A reasonable midwifery. Cow birth, to ask professionals in the midwifery, strict delivery room, Cow genital disinfection equipment and cattle, with particular attention to the cattle dystocia, postpartum retention of afterbirth of cows in the treatment, should be output in the calf or the afterbirth after discharge cleaning and after uterine infusion of drug treatment, prevention of secondary infection.
Second, observe the performance of cows in heat, in particular genital excretion of observation, note that mucus is normal, if unusual, please be prompt veterinary treatment.
Third, strict operational procedures of artificial insemination. Strict disinfection of the artificial insemination device, the external genital washing before insemination, sterilization, Inseminated operation to prevent injury to avoid rude and secondary infection of reproductive tract, sperm have to ensure that contamination.
Common ovarian functional diseases are ovarian static, persistent corpus luteum, etc.. Cow ovaries at rest showed no oestrus, no ovulation, the presentation of a quiet mild heat, that heat is not obvious symptoms, rectal examination revealed the ovarian surface is smooth, small and hard texture. For the rest of the cow such as the ovary is not innate, available follicle stimulating hormone (FSH) 100-200 units of intravenous injection, or by pregnant mare serum intramuscular or subcutaneous injection of 20-40 ml, to promote follicular development. Persistent corpus luteum, although the main characteristics of cattle not pregnant, but the presence of ovarian corpus luteum and do not have dissipated, the number, size range, most prominent in the ovary were mushroom-shaped surface, hard texture. Treatment of 100-200 units of FSH used intramuscular injection, such as invalid injection every 2-3 days and 1; or cloprostenol injection of 4 mg, intramuscular injection or infusion in utero; or rectal massage across the ovary, day 1 -2 times, each time for 3-5 minutes, 3-5 days in a row.
Barn and the playground of poor sanitation, excessive moisture, will lead to poor health conditions cattle, increasing the chance of reproductive tract infections. Therefore, to strengthen the barn and the playground of health management. At the same time make cattle disease prevention, quarantine, prevention of cow brucellosis and other infectious diseases. Source: Animal Net
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