What are the symptoms of pigs in spring? Must pay attention to prevention and control

Spring temperature rises slowly, sometimes abnormal weather, suddenly hot and cold, easy to catch a cold. When spring comes, all things are more alive, bacteria and viruses are easy to reproduce, while livestock and poultry that survive the cold winter tend to be thinner, and their immunity and disease resistance decline, so every year at the turn of winter and spring, animals are prone to disease and death (the so-called "spring pan"). As far as pigs are concerned, the common diseases are classical swine fever, paratyphoid, piglet edema disease, yellow dysentery, white dysentery, transmissible gastroenteritis, asthma, cold, piglet hypoglycemia and scabies. These more than a dozen diseases are common in spring, so we must pay attention to prevention and treatment.

1. Classical swine fever:

According to the reasonable immunization procedure, in the frequent area (non-safe area), the piglets can be immunized in advance (1-2 portions per piglet after birth, and then fed with colostrum 1-2 hours later), and then immunized again at the age of two months (2 doses per head). The safe zone can be immunized once at the age of two months. If some pig farms are exempted for the first time at the age of three weeks, they should be immunized again at the age of two months. Breeding sows were immunized once in spring and autumn, reserve sows were immunized 20 days before breeding, and boars were immunized once in spring and autumn every year after piglets were immunized.

2. Colibacillosis of piglets:

Early-onset colibacillosis (yellow dysentery of piglets) is more common at the age of 1-3 days. Delayed colibacillosis (piglet white dysentery) occurs frequently at the age of 2-3 weeks. Piglet edema disease (pinkeye disease) often occurs in fat piglets before and after weaning. The above three diseases are all caused by pathogenic Escherichia coli. The feeding management, cleaning and drying of pregnant sows and lactating pigs should be strengthened. To prevent cold and heat preservation, sows were injected with colibacillosis prevention vaccine 15-30 days before delivery (see instructions for specific usage). Piglets were fed for seven days and passed the "three passes" (colostrum pass, feed pass, weaning pass). The treatment of sick piglets should be carried out anti-inflammatory and antibacterial, antidiarrheal, cardiotonic, fluid replacement and other comprehensive therapy.

3. Piglet paratyphoid (salmonellosis)

Most piglets over 20 kg at the age of 1 month occur frequently in winter and spring, which is closely related to extensive feeding and management. Piglets should be vaccinated against paratyphoid fever after weaning (1 month old). Piglets should be protected against cold and moisture, raised in batches (appropriate density), eat less and eat more, feed well, do not suddenly change feed, and pay attention to mineral and vitamin supplements.

IV. Transmissible gastroenteritis (TGE) and epidemic diarrhea (PED)

Commonly known as winter dysentery, are viral infections, showing a transient epidemic, often occur in early spring. Mainly gray cement dysentery, vomiting and dehydration, pigs rarely die, and the mortality rate of piglets under 10 days old is 50% 100%. There is no ideal vaccine. After the occurrence of the disease, pay attention to replenish water (10 kg, 1 two salt, half a jin of glucose) and disinfect the pig house. Usually pay attention to heat preservation, clean drinking water, eat less and eat more.

5. Asthma (mycoplasma pneumonia)

It is a chronic respiratory infectious disease caused by mycoplasma (mycoplasma), wheezing, coughing, breathing faster, no fever but normal appetite, piglets occasionally die, and the lesions are limited to the pulmonary heart lobe, sharp lobe, middle lobe and the anterior upper edge of the diaphragmatic lobe. showed "meat degeneration" or "pancreatic degeneration" (shrimp meat degeneration), fusion bronchopneumonia changes. The preventive vaccine is still in the trial stage. Disease farms should isolate, purify and establish rehabilitation pig herds, and non-diseased pig farms should pay attention to self-breeding and strengthen feeding and management. Drug prophylaxis can be added to feed with Zhiyuanjing, oxytetracycline or kanamycin.

6. Catch a cold:

Most of the common diseases in spring are exogenous cold, fever and sometimes diarrhea. Compound aminopyrine can be used to dilute penicillin injection. Usually pay attention to cold, cold wind, moisture, can take ephedra, cinnamon twig soup (ephedra, cinnamon twig, Fangfeng, Schizonepeta, licorice, ginger boiled water).

7. Hypoglycemia in piglets

Most of them occur in newborn piglets in winter and spring, because pregnant sows are undernourished or have no milk after delivery, which leads to energy deficiency and decrease of blood sugar in piglets. Prevention should pay attention to the feeding of sows and piglets and keep warm. The above seven common diseases in spring often cause a large number of deaths or affect the weight gain of pigs, which should not be taken lightly. The policy of giving priority to prevention must be carried out to prevent problems before they occur, so as to ensure the smooth development of the pig industry.