Recently, novice pig farmers are asking: How should the sows in lactation be managed? What if the lactating sow does not produce milk very much? The following is a brief introduction to the key management technical points of lactating sows. First, the daily management of lactating sows Lactating sows should be kept in a single column. When the weather is fine, the sows can take piglets to the vicinity of the pig house for free for 20 to 30 minutes after 4 to 5 days of postpartum. The lactating sow house should be hygienic, dry, quiet, fresh air and suitable temperature and humidity. The minimum temperature in the winter delivery room should be above 10 °C. The lactating sow house should be cleaned once a day or every other day, and disinfected once every 5 to 6 days with no disinfection. A few days after delivery, the piglets should be manually assisted to fix the nipples. Some primiparous sows may have breast-feeding stress and refuse to breastfeed. At this time, artificial induction is required. Gently stroke the sow's belly or massage the breasts while breastfeeding, so that it can be breast-feeding comfortably. After a few days, it will not refuse breastfeeding. The lactating sows are fed with wet materials, and the ratio of feed water to water is 1: (0.6-0.7), which is fed 3 to 4 times a day, and the total daily intake should not be less than 1 hour. The sows should not be fed too much after delivery. The feeding amount should be gradually increased after 3 to 5 days, and the feeding amount can be increased to the normal amount one week after the birth. Large pig farms with good conditions are mostly weaned at around 30 days old. The sows can feed 5 kg of concentrate per day for 10 to 20 days after delivery, and 5.5 to 6.0 kg of concentrate for 20-30 days after delivery. 30 to 35 days, the daily feeding amount will gradually drop to 4.5 to 5.0 kg. In small and medium-sized pig farms, piglets are weaned at 50 days of age. The sows should increase the amount of daily concentrate feed 40 days before delivery, and gradually reduce the amount of daily concentrate after 40 days. For sows with less than 8 piglets, the amount of feed should be properly controlled. For sows 2 to 3 days before weaning, the amount of feeding should be gradually reduced to prevent mastitis. The feeding time of lactating sows should be fixed, not early and late. Several feed formulas for lactating sows are now available for reference. 1. Corn 30%, barley 25%, cottonseed cake 18%, secondary powder 10%, bran 8%, rice bran 2.5%, wheat 2.5%, blood meal 2%, bone meal 1%, salt 0.5%, calcium powder 0.5%; 2. Barley 25%, wheat 15%, rice flour 10%, secondary powder 10%, bran 10%, cottonseed cake 10%, rice bran 10%, corn 9%, calcium powder 0.5%, salt 0.5%; 3. Corn 40%, bran 17%, grass powder 14.5%, barley 10%, bean cake 10%, fish meal 7%, bone meal 0.5%, shell powder 0.5%, salt 0.5%; 4. Corn 38%, bran 20%, barley 15%, sunflower cake 10%, fish meal 8%, soybean powder 5%, grass powder 2%, bone meal 1.5%, salt 0.5%. Third, the method of increasing the amount of milk Lactating sows are best fed with special full-price ingredients, or they can feed a comprehensive, balanced, and palatable mixture. When the protein content of the feed is insufficient, the fish meal may be appropriately supplemented. It is necessary to pay attention to the feeding of green fodder, and it is better to feed the concentrate and the green fodder every day at a ratio of 1:1. If the green fodder can be broken or beaten and mixed with the concentrate, it is best to feed. The type of feed that the sows are fed during lactation should be stable and should not be changed at will. Sows with good breast development and good sensation should gradually reduce the amount of feeding (from 1/3 to 1/2 of the late pregnancy) 3 to 5 days before delivery, and suspend the feeding of green fodder to prevent postpartum causes of sows. Mastitis is caused by excessive or excessive lactation. Over-fertilized sows should gradually reduce the amount of feed they feed 10 days before delivery. Sows with poor breast development and poor sensation should be fed prenatally. The sows should return the feed to a constant 5 to 7 days after delivery. When the sow has anorexia, the sow should be rushed to the outside of the house for 40 minutes to an hour each day. The number of days can be relieved or basically relieved. Sows should maintain a clean, dry, quiet and fresh air during lactation. Drug prevention (1) A well-behaved sow is prone to mastitis a few days after delivery, and should take 2-3 mg of oxytetracycline per day for 3 days before and 3 days after delivery. (2) In order to prevent the occurrence of metritis and mastitis, sows should be injected with 1.5 mg of chlorpromazine hydrochloride per kilogram of body weight, or 1.6 million international units of penicillin per molecule, and 1 million international units of streptomycin. Or 300,000 to 400,000 international units of oxytocin per head. 2. Food lactation (1) Use 4 eggs, 500 grams of peanuts, add appropriate amount of water to cook, wait twice for the temperature, use 1 to 2 days, the next day can be milk. (2) Use 500 grams of shrimp skin or shrimp, appropriate amount of rice or noodles, add appropriate amount of water to cook porridge, wait for the temperature to feed twice, the next day can be milk. (3) Cucumber vines and roots 300 grams, washed and chopped, put into the tofu juice (soybean milk extracted from the juice after the tofu) boiled, wait for 1 time to feed, for 2 to 3 days. (4) 200 grams of white wine, 200 grams of brown sugar, 6 eggs, egg broken and stir, then add brown sugar and mix well, then add white wine and mix well, stir into the concentrate to feed, feed 1 time. (5) Use 500 grams of fresh oysters and 5 eggs, add appropriate amount of water to cook, feed the sows at a temperature, and feed once a day for 2 to 3 days. (6) Use 500 grams of squid, add appropriate amount of water to clear the stew, remove the fishbone, add 250 ml of rice wine or rice wine, feed at room temperature, feed once a day for 2 to 3 days. (7) Use kelp 250 ~ 300 grams, chopped after swelling, add 70 ~ 100 grams of lard, add water to the amount of soup, wait for warm feeding, feed once every 7 ~ 8 days. (8) Appropriate amount of green feed, such as green vegetables, sweet potatoes, radishes, carrots, beets and cabbages, also has a certain effect of increasing the amount of lactation. 3. Chinese herbal medicine lactation (1) 1000 grams of tofu, 45 grams of saponin thorns, 75 grams of fried king does not leave, add appropriate amount of water to cook, wait for warm feeding, once a day, for 3 to 5 days. (2) Wang does not leave 10 grams, 5 grams of Astragalus, 5 grams of saponin, 10 grams of Angelica, 5 grams of Codonopsis, 10 grams of Chuanxiong, 3 grams of leaking Lu, 2 grams of Lulutong, a total of research into the end, mixing Feed, feed once a day for 3 days. (3) Lactating sows with individual obesity: 40 grams of grass, 25 grams of glutinous rice, 25 grams of trichosanthin, 25 grams of astragalus, 20 grams of white peony, 20 grams of woody, 20 grams of loofah, 20 grams of Wang not staying 15 grams of licorice, add appropriate amount of water decoction, wait for the temperature to feed twice, once a day, for 2 to 3 days. (4) Slim or weak sows: 50 grams of Codonopsis pilosula, 30 grams of fried Atractylodes, 25 grams of Yunxiao, 25 grams of stagnation, 30 grams of Wang not staying, 15 grams of asarum, 15 grams of woody, purple 15 grams of grass, 15 grams of grass, add appropriate amount of water decoction, wait for the temperature to feed twice, feed once a day, once every 2 to 3 days. 4. Western medicine prolactin (1) Vitamin E 100 mg, oxytocin 200,000 IU, the two together mixed into 500 ml of 10% glucose solution, intravenous drip, after 10 minutes, massage the sow's breasts with hands more than 100 times, then let the piglets go early every morning In the evening, each sucks once, and 4 to 5 times in a row can induce continuous milk production. (2) Oral administration of prolactin, once a day, 10 tablets each time, for 4 to 5 days. 5. Western medicine treatment of mastitis sows. (1) Intramuscular injection of 15,000 international units per kilogram of body weight, 3 times a day for 2 to 3 days. (2) First squeeze out the milk in the diseased breast, then scrub the breast, then apply 10% fish fat ointment, or iodine ointment, or camphor oil. The sows with severe disease can be injected with 0.5% procaine hydrochloride 60-100 ml plus penicillin 800,000 international units for partial closure treatment.
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How to manage lactating sows? Key feeding techniques for lactating sows