First, the dry milk period of about 60 days before the cows' production, according to the decision of the public opinion, the amount of fine feed should be no more than 4 kg per day. The concentrated feed is mainly based on high-quality hay, so as to enhance the digestive capacity of the gastrointestinal tract. Preventing cows from becoming over-fat helps cows produce their eggs smoothly. At this point should pay attention to the supply of calcium, phosphorus and other inorganic salts, reduced to the usual 1/3 ~ 1/2, the general supply of calcium accounted for 0.2% to 0.25% of dietary dry matter is appropriate, phosphorus 0.24% It is appropriate.
Second, to strengthen the initial production of cattle breast massage early cows in the late pregnancy, the breeder should be more exposed to it, at the latest two or three months before giving birth to accustomed to lactating cattle management, including milking operations. The initial production of cattle prenatal massage breasts, can promote the growth and development of the mammary gland, increase the milk production after delivery of 10% to 20% or so, to promote human and animal affinity, to prevent kicking. The specific approach is: starting around two or three months before delivery, massaging the breast 2 or 3 times a day (early, middle and late), each massage lasts 5 to 10 minutes until 7 days before delivery. Do not wipe the nipple during the massage process so as not to wipe off the waxy protection around the nipple.
Third, to prevent mastitis stop milk, medication for nipple closure, can effectively prevent postpartum mastitis. Specific approach: After the last squeezing milk, take the powder penicillin poison 3.2 million units, powder streptomycin 2 million units, mixed with 100 to 150 ml of vegetable oil after high temperature sterilization, fully mix well, use Tongmai needle Inject into the nipple hole separately. In addition, the finished product "dry milk needle" sold on the market also has a good effect in preventing mastitis.
Fourth, to prevent postpartum abortion can not squeeze all the milk after the net, or because the breast pressure is significantly reduced, can cause postpartum sputum of high-yield dairy cows, the general post-natal milking should be controlled at about 2 kg, the second day squeeze 1 / 3, squeeze 1/2 on the 3rd day, can squeezing completely after the 4th day, at the same time should adopt the method that adjusts calcium and phosphorus feed quantity, daily supply calcium and phosphorus 40 grams about 2 weeks before delivery, postpartum calcium phosphorus feed quantity Gradually return to normal levels. This "high before and after the low" method can stimulate the body's absorption of calcium, phosphorus, play a role in disease prevention. Prenatal and postpartum intravenous calcium delivery methods can also be used. Specific practice: 1,500 ml of 5% calcium chloride solution or 750 ml of 10% calcium gluconate is intravenously administered within 1 week after prepartum.
Fifth, prevent the placenta is not under normal circumstances, the cows can fall off within 12 hours after delivery. If the placenta has not fallen off after 12 hours (8 hours in the summer) after birth, measures should be taken. Otherwise, adverse consequences are likely to occur. Intramuscular injection of oxytocin or intravenous injection of 1000 ml of 10% glucose is generally effective. It can promote uterine contraction and discharge the tire coat as soon as possible. In addition, after the cows give birth, they should immediately drive up and drink warm Motherwort Soup as soon as possible (100 grams of motherwort, 50 grams of bran, 50 grams of calcium carbonate, and 10 to 15 kilograms of warm water), which is also conducive to recovery and discharge of the placenta.
Sixth, for healthy and normal delivery cows, should allow them to freely eat hay, try to avoid feeding too much corn silage starting from the fourth day after childbirth, with concentrated material by 0.5 kg per day, so that the cows in the postpartum Within 11 days, the daily feed intake amounted to about 10 kilograms. This will not only reduce the weight loss of the delivery cows within 15 days after delivery, but also can promote the increase of milk production.
Crab Stick,Crab Surimi,Half Cut Swimming Crab,Frozen Surimi Crab Stick
Zhejiang Zhoushan Jiaze Aquatic Co., Ltd. , https://www.tianjia-aquatics.com