The technical personnel of the Heyuan Rural Animal Husbandry and Veterinary Station combined the project implementation requirements and the situation of live pig production in the area. The actual situation of slow growth of piglets in the aquaculture production was as follows:
I. Weaning is irrational: Farmers raise more pigs and adopt a weaning method. They are marketed immediately after weaning. The piglets were originally centered on their mothers, cohabiting with their countrymen, and their stable and comfortable living conditions suddenly changed, making it difficult to adapt and affecting weight gain. . The number of times the piglets are fed should be gradually reduced from 5 to 6 days before weaning until they are fully weaned.
Second, feed is not timely: piglets in the lactation stage did not feed in time, after weaning can not eat well, resulting in slow growth, development stopped. In general, piglets should start feeding and feeding at 10 days of age, and begin to use fragrant, sweet, brittle, and easily digestible feeds, and gradually feed normal feed later.
Third, feed and feeding methods are irrational: after weaning, piglets can not only eat breast milk, and the feed quality is also worse than the lactation period, the number of daily feeding from the pre-weaning 6 to 8 times, drastically reduced to the day 3 times, these drastic changes Impairs normal growth of piglets. Therefore, when buying pigs, it is necessary to ask the seller in detail about the feeding and management of pigs, so that the quality of feeds gradually transitions, and the number of feedings gradually changes from more to fewer.
Fourth, the environmental conditions change too much: the piglets are mother-centered and co-habitants before weaning. After weaning, it is usually a lap of a pig. The piglet cannot adapt to it in a short period of time, especially in the winter due to a large temperature difference and eating well or sleeping, which easily leads to disease or even death. Therefore, after the piglets wean, we must strengthen the feeding and management, so that they gradually adapt.
V. Extensive management: At present, farmer raising pigs is generally a round of pigs. Some pigs eat, sleep, pull the same points, and the cleaning does not work, resulting in environmental pollution, poor sanitation, especially in winter, it is easy to cause swine cold A series of diseases, such as diarrhea, are extremely detrimental to their growth and development. In the actual pig production, pigs can eat in accordance with the speed, good or bad grouping, with 3 to 6 heads in a circle, so that pigs only eat, grow fast. In addition, we must strengthen management, make it a fixed point of eating, defecation, sleep at a certain point, and maintain environmental hygiene.
6. The epidemic prevention and the delisting time are incorrect: Farmers buy more piglets to the bazaar and carry out epidemic prevention and castration at the time of purchase. The three unfavorable factors such as weaning, epidemic prevention, and castration were all added to the piglets, so that the piglets could not recover in a long time, seriously affecting the normal growth and development of pigs, making them grow slowly and forming stiff pigs. Generally, boars not reserved for breeding can be castrated at 20 days of age and gilts can be aged from 30 to 40 days. For the prevention of certain infectious diseases, swine fever can be injected before 30 days of age. The erysipelas vaccine can be inoculated at 90 days of age in pigs.
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