Fine breeding and nursing of breeding pigs are the key and guarantee for raising the productivity of breeding pigs. Through careful feeding and nursing, the productivity of sows can be increased, the number of litters born and the ability of breeding sows to be raised, and the occurrence of reproductive disorders can be controlled.
The composition of the boar's diet is mainly concentrated, containing 12.55 MJ/kg of digestive energy, 13%~14% of crude protein, 0.8%~1.2% of calcium, 0.6% of total phosphorus, 0.3%~0.6% of salt, lysine Acid 0.75%. Vitamins play an important role in the development of the testes and semen quality of the breeding pigs, especially vitamin A, vitamin D and vitamin E. Over-fertilization of boars will result in a decline in breeding ability. The poor quality of boar semen will result in a lower conception rate of sows, so feed formulas should be adjusted in a timely manner. In a single lap, 6 to 7.5 square meters of pigs per head were placed in a place quiet, sunny and away from the sow pig house. Frequent cleaning of the pig house and brushing of the pig body keeps the ring body and pig body sanitary. Regularly check the quality of semen, adjust feed nutrient levels and frequency of breeding at any time, extend its lifespan and give full play to its reproductive ability.
Empty sow sows are bred and lactating, and the body weight is generally reduced by 20% to 30%. Fine breeding before sowing is to restore the sow's lyrical and physical strength in order to achieve the body condition. In addition, the rations should be properly adjusted according to the breed and the expected date of production of pigs, and they should be flexible and finely fed to meet the nutritional needs of the sows.
Pregnant sows generally maintain a low level of nutritional feed in the first trimester of pregnancy. They feed 1.8 kilograms of mixed material per head per day and increase the amount of feed to be fed later. They are fed 2.8 to 3.0 kilograms per day. On this basis, winter can increase feed by 10% to 15%, and reduce the amount of feed by 10% in summer to maintain the upper body condition of sows. One week before sow mating, control of feed intake, prevention of embryo implantation failure and death, affecting the number of litters. Maintaining a relatively quiet environment during sow pregnancy can reduce early embryonic death. Strengthen the sow's feeding and management, carry out appropriate and reasonable exercise, enhance the sow's constitution, stop the exercise before labor, and prevent mechanical abortion.
During the maternity period of the sow during pregnancy, 110 days after the pregnancy expires, some feeds for lactation may be properly fed, and the ratio of wheat bran may be increased in the diet and 1.5 to 2 kg per head may be fed. However, reducing sows' feed intake 2 to 3 days before sow's production, especially on the day of abortion, can reduce the incidence of mastitis and contaminate the birth bed with excreta. After the end of the sow giving birth, 20-40 units of oxytocin are intramuscularly injected to promote the discharge of the fetal clothing and uterine contents, accelerate the recovery of the uterus, and promote lactation.
Sows do not feed their feed within 10 hours of the day of their birth. They only supply enough drinking water and drink warm water in the winter. Feed the colostrum as early as possible within 2 to 5 days of birth and keep the breast clean and hygienic. Two to five days after sow, the daily feeding amount is 1.5 to 2.5 kg per head. Six days later, according to the number of sows per litter, feeding standards are adopted during lactation. From 10 days postpartum, the amount of feed is gradually increased until the peak of lactation (postpartum 25~30 days) Stop feeding.
Structure and composition: It is made of 100% pure cotton thread and woven into plain weave cotton cloth of various widths, then, degreasing, bleaching and drying.
Product performance: It is white and odorless, soft to the touch, does not contain cotton leaves, cotton seed shells or other impurities, and has good water absorption performance.
Model specifications: Non-sterile type, roll type. The specifications are 90CM / 100CM / 120CM * 1000M / 1500M / 2000M, etc.
Packing: White chicken skin paper naked package, and then set with PE plastic bag, packaged with external woven cloth.
Scope of application: It is mainly used for raw materials of medical accessories and clinical use of medical units.
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