Strengthen Feeding Management Strengthen feeding management is the basic method to enhance the health of cattle and reduce nutritional deficiencies. Because the cows are fed with too much concentrated feed, their movements are not enough, which makes it easy for the cows to become over-fat, and the estrus is abnormal and hinders fertility. In particular, high-producing dairy cows concentrate too much, more likely to cause metabolic diseases, resulting in infertility and malnutrition during the growth of calves, development blocked, affecting the development of genitals, easily lead to delay of the puberty, dystocia or stillbirth in the first maternal period, both affecting Reproductive performance also affects production performance. Followed by some cattle feed straw feed in recent years is used herbicide, resulting in cattle abortion and long-term infertility, what is the reason for further study. In addition, exercise and sun bathing also play an important role in preventing cow infertility. If the cowshed is not well ventilated, air is dirty, excessive humidity, hot summer, winter cold and other harsh environment, not only endanger cow health, but also cause the cow to stop estrus. Therefore, in feeding and management, the first is to ensure that the full price of protein, adequate vitamins and calcium, phosphorus and other mineral feed, but also to ensure diversification of feed, green and juicy feed and quality hay to meet the supply, forbidden to use weeding Agent straw or moldy hay; Second, to allow the cows to exercise every day, to ensure that every day around the afternoon and night calf out of home exercise for about 1 hour; third is to ensure daily sunbathing cows (furnishing fluorescent lamps) 16 hours, while brushing the body of cattle 1 or 2 times a day, both to promote blood circulation, but also to keep the cattle body clean and sanitary; Fourth, the shed, room cleaning, cattle kept clean and dry, replace the mat grass every day, while maintaining Cowshed ventilated and dry. Paying attention to delivery room care Paying attention to delivery room care is the primary measure to ensure the development of the next fetus. Because the care of the cow during the delivery room directly affects the lactation, recovery of the uterus, and mating of the next child. Therefore, in order to promote the recovery of the cow's postpartum constitution, it will not affect the occurrence of endometritis due to childbirth or delivery in the delivery room and affect normal estrus breeding. Natural labor should be carried out on the cows that are born, and artificial artificial midwives should be avoided. If necessary, the veterinarian must be in operation. First of all, it is necessary to do a good job of sanitization, that is, the operator's arm cleaning, the disinfection of the midwifery equipment, and the cleaning of the cow's hindquarters with disinfectant. Secondly, the veterinarian must make a diagnosis of the fetal position. The assistant must be careful and not rude in operation to prevent birth canal injury and reduce microbial infection of the birth canal. According to the survey, self-employed households in Anda City did not seek veterinarians to implement inappropriate midwifery, causing cows with various genital diseases to become infertile or have long-term infertility, accounting for more than 60% of the city's cow infertility. 2. Cows with no placenta should be treated promptly. If the placenta is no more than cows, it is recommended that they be perfused with antibiotics after stripping. If the adherence of the placenta is too tight and not easy to exfoliate, it should be poured into the uterus with antibiotics (chlortetracycline 1-2g or oxytetracycline 2-4g) once every other day until the vaginal secretions are clear. 3. To do a good job in the health examination of the cows in the delivery room. 10 days after childbirth began vaginal examination, the general situation of fetal clothing off the cows on their own, 15 days after delivery can produce the room; where endometritis or placental retention are not in the delivery room after treatment before the delivery room. However, the cows in the production room must adhere to three criteria: First, normal appetite, lactation, and general health; Second, the uterus returns to normal; Third, vaginal secretions are clear or dark brown, jelly-like, odorless . Accurately understanding the occurrence of oestrus, judging the estrus of cows correctly, not losing oestrus, and not missing the cow's love period is a prerequisite for preventing cows from infertility because cows have estrus after more than 20 days of calving, and cows are generally postpartum. 1-3 sentimental estrus, ovulation law is relatively normal. The normal phenomenon of estrus in cows is: the cows are excited and uneasy, their appetite is diminished, they often buzz, they churn and they chase other cows or allow other cows to climb. The two hind legs are stretched, and the waist is arched. Frequent urination but less, tail Lift or shake, while the vulva loose, swelling, mucosal hyperemia, flushing, cervical opening, congestion, swelling, uterine endocrine mucus often drained outside the vulva, mucus transparent, linear. Therefore, estrus should be carefully observed in the early morning and late. For cows that are not estrus or estrus, the methods that should be taken are: 1. A vaginal examination can be performed to see how the vaginal mucosa, mucus, and cervix are opened. 2. You can also do a rectal examination to see how the uterus, ovaries, and follicles change. 3. Can also choose to use appropriate hormones for aphrodisiac, promote their ovulation, that is, with a 10-20 ml of pregnant horse serum injection, 40-48 hours later, can stimulate sexual activity of cows, causing estrus or strengthening the process of heat. Doing a good job in timely breeding In the context of correct estrus identification, accurate and timely breeding is the key to improving the conception rate of pregnant cows and preventing infertility. Therefore, it is required that the breeder should have a high degree of responsibility in the breeding process and that: 1. The breeding condition and breeding status of the cow should be mastered, and detailed breeding records should be kept. 2. Strictly abide by the aseptic procedures for artificial insemination, strict inspection of semen quality, good thawing of frozen essence, accurate mastery of insemination time for insemination, fine operation, strict disinfection, and precise insemination site. 3. For some cattle that have not been conceived two to three times, the addition of penicillin by 200,000 to 400,000 units during insemination can effectively increase the rate of conception. Soybean Planter,Sorghum Planter,No-Tillage Planter,No-tillage Rotary Planter Shandong Dahua Machinery Co.,Ltd , https://www.agrodahua.com
Technical points for preventing and treating infertility in cows
Cow infertility refers to the time after the cow has reached the breeding age or after delivery, and cannot be affected after multiple breedings. It is also a common disease in the dairy industry. Due to the delay in the delivery period, the cows cannot reproduce normally and the calving interval is prolonged. Some cows lose their feeding value due to loss of productivity due to long-term infertility and are forced to retire, resulting in significant economic losses to dairy cows. Due to improper management, individual cattle farmers have been unable to estrus, breed, feed, and milk in a timely manner, which has greatly reduced the economic benefits of raising cattle, thus dampening the enthusiasm of farmers to raise cattle. Therefore, in order to help cattle farmers to prevent and control infertility of cows as soon as possible, the following technical points are discussed.