Pre-lactation Saltwater bran soup cows should be fed 20-25 kg of warm brine bran soup within 2 hours of giving birth (1-1.5 kilograms of bran, 1 kilogram of brown sugar, 100 grams of salt plus boiling water, cooked, add cool water To 37 °C), this will increase the body mass and abdominal pressure of the cow, and effectively prevent postpartum paralysis. To promote milk balance from the second day after childbirth, to feed palatability, easy to digest energy feeds, free intake of high-quality hay, as appropriate, feed intensive feed, daily feed amount of 0.7-1 kg. When the milk output no longer rises after the feed is increased, the excess feed is reduced and the milk is balanced. During this period, the dry matter intake should reach 4% of the weight of the cattle, the crude protein level of the diet should be no less than 15%-17%, and the ratio of refined and roughage should be 1:3. To increase appetite, you can add baking soda every day to bring the milk production peak early. For nutritional supplements, carrots, beets, and vinegar can be added to the diet. Winter porridge, drink warm water, add cool well water in the porridge in the summer, can increase milk production. Increase the number of milking conditions of the cattle farm, for high-yield dairy cows, can change the original squeeze 3 times for the day 4 times, will help improve milk production throughout the milk period. After the production of good health, the rear trunk of the cow is cleaned and disinfected in time to prevent reproductive system diseases. The barn and sports grounds are cleaned and grounded, and kept clean and dry. At the same time, it should also be air and light to prevent thieves and drafts. Adhering to the “quasi-defining†milking principle means fixing the milker (its body should be healthy), fixing the milking time, fixing the milking area, fixing the milking sequence, and mastering the milking technology. Lactation period The “alternative breeding method†is used to alternate the coarse-grained type (mainly high-quality hay and succulent feed) and the continuum feeding method. Through this periodic stimulation, the appetite and feed conversion rate of cattle can be increased, milk production can be increased, and feed costs can be reduced. The period of alternating feeding is generally 2-7 days. During this period, milking and breast massage should be stepped up to prompt the cows to exercise more without restricting drinking water. The increase of crude protein must be fed to high-energy, high-protein diets, and the number of feedings should be appropriately increased. The crude protein level in the diet should reach 18%. Timely mating general cows 30-45 days after childbirth, the genitals have gradually recovered, and some have begun to show estrus. At this time, rectal examinations can be performed, and breeding starts at about 45 days. It is necessary to strictly match the intensive breeding practices and strive to inseminate and conceive during one estrus period and prevent breeding contamination. Cows that are swabbed with cows are given an exercise each morning and afternoon, one hour at a time, to enhance their fitness and milk production. Brushing can keep skin clean and prevent skin diseases. Every day should be brushed 1-2 times, best arranged in the stadium before milking. Cowsheds and playgrounds are warm in winter and cool in summer to prevent heat shots. Mid lactation During this period, the cows had the most appetite, and the dry matter intake of the diet reached the highest, and the milk yield gradually decreased from the peak. In order to maintain milk production at a relatively high level and not to drop too fast, and to gradually restore body weight without gaining too much weight, the following points should be made in the rearing of dairy cows: 1. According to the principle of “material follow milkâ€, that is, with the reduction of milk production, the amount of concentrate should be gradually reduced. 2. Feed a variety of full-fledged feeds with good palatability. While reducing concentrates, increase the amount of roughage as much as possible to meet the nutritional needs of dairy cows. 3. During this period, the feed intake of cattle has increased greatly. For the thin and weak cattle, the fine material should be slightly increased to facilitate recovery of the body condition; for cattle with medium body conditions, such as overfeeding of concentrated material, it is easy to Cows are over-fertilized and affect milk production and reproduction. Therefore, it is advisable to reduce the amount of concentrate. 4. The level of dietary nutrition was adjusted to: dry matter intake in the diet accounted for 3%-3.3% of body weight, 2.1-2.25 cow energy units (NND) per kg dry matter, calcium was 0.45%-0.7%, phosphorus It is 0.35%-0.6%, crude protein is 13%-14%, crude fiber is 16%-17.5%, and the crude material ratio is 40:50. 5. Feeding delays the decrease of lactation, ensures adequate exercise and drinking, correct milking methods, and strengthens breast massage and fine management. Late milk rearing Late lactation generally refers to 200 days to 305 days after delivery. Dairy cows' daily milk production dropped to the lowest level. Ingestion of nutrients was mainly used to maintain, produce milk, repair tissue, fetal growth, and pregnancy deposition. Therefore, this stage should be dominated by coarse materials, and forage and concentrates are generally based on 65:35. The breeding should be done without stacking, emptying the tank, not feeding moldy, frozen feed; insisting on brushing the body of cattle daily to keep it clean; regularly vaccinating and regularly disinfesting insects. The feed should be adjusted according to the cow's mood to prevent over-obesity. The dietary nutrient level was adjusted to: 2.8%-3.2% of dry matter intake in the diet, 2.1-2.2 cow energy units (NND) per kg dry matter, crude protein 13%-15%, and calcium 0.4% -0.65%, phosphorus 0.3%-0.5%, crude fiber 18%-21%. Medical Device means any instrument, apparatus, implement, machine, appliance, implant, reagent for in vitro use, software, material or other similar or related article, intended by the manufacturer to be used, alone or in combination, for human beings, for one or more of the specific medical purpose(s) of: Medical Device Ph Test,Medical Device,Acid Alkali Testing For Ph,Saliva Ph Test Kit Changchun Medicon Technology Development Co., Ltd , https://www.jlmdk.com
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