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Feeding management details of pregnant sows
First, three indicators of feeding and management of pregnant sows: [1], to produce a large, robust, a large number of live piglets. [2] Postpartum sows have normal breast development and more milk production. [3] Save feed as much as possible and reduce the cost of new born piglets. Several key periods during pregnancy 1) Do not increase the amount of feed 3 days after breeding because high energy feeds increase the death of fertilized eggs. 2) Before and after mating (12-21 days), because of the large number of hyperplasia of mammary cells, high energy diet at this stage will affect the development of mammary glands. 3) More than 100 days after mating: if nutrition is insufficient before 100 days, there will be few deaths but after 100 days, if there is insufficient nutrition, it will cause fetal death. The poor growth of sows will result in calving and death. Therefore, high energy and high protein feeds are not allowed at this stage. Second, sows are prone to constipation, anorexia, postpartum fever, reduced milk production or no milk incidence during pregnancy and before and after birth. The author believes that the greatest harm is --- constipation occurs in about 5% - 25%, some up to 40%. Especially in late pregnancy sows and prenatal and postpartum sows up to 50%. By the author of this Several years of follow-up on large-scale pig farms have found that sow pregnancy syndrome has become the mainstream of pig farms. Many farm technicians have also adopted many methods such as adding crude fiber to feed, adding baking soda or magnesium sulfate to drinking water, and seriously adopting an enema approach. The above solution only solves the problem of table-breaking and does not really solve the problem. Protecting the integrity of intestinal epithelial cells can really solve the problem. The measures are as follows: A: Pregnant sows throughout the whole Pride 1kg + mildew 500g / tons of lactating sows 15 days before and after each production Plurizo 1-2kg / + good sense (continuous use 7 days) 300-500g /Ton. B: Add Sintravit® to drinking water/1000kg C: Strengthen the movement of pregnant sows, and note that the ratio of calcium to phosphorus in the sow's feed is generally not lower than 0.75% and 0.6%, respectively. D: Postpartum injection of pregnant sows Candid Postharvest or Fulaixin III. The pregnant sows should not be allowed to change their feeds, and must strictly stop the feeding of musty and deteriorating feeds. At the same time, they should pay attention to the feed tanks to be washed frequently and not feed directly into the water to prevent fermentation deterioration. . Drinking water should be sufficient during pregnancy, the temperature should be controlled between 16°C and -20°C, and it should be absolutely cool during the summer, especially after 3 weeks of pregnancy. IV: Prenatal immunization is one of the important aspects of sow management in pregnancy. The purpose is to ensure that piglets receive passive maternal immunity by sucking sow's colostrum. The most important for the prevention of most vaccines before general mating is swine fever and pseudorabies gene deletion vaccines. Prenatal 3-4 weeks are suitable for injection of pseudorabies gene deletion vaccines and multivalent E. coli vaccines. In short, the author believes that the feeding and management of pregnant sows is one of the most important aspects of the entire pig feeding and management.