How to prevent and cure porcine high fever syndrome in large-scale pig farms

Pig farm

Porcine high fever syndrome is an acute and febrile infectious disease characterized by septicemia, which is caused by some immunosuppressive viruses or by a mixture of viruses and bacteria or secondary infection under the action of some immunosuppressive factors. In the process of guiding scientific and technological demonstration households to raise pigs, we found that the use of mildew wrapped grain is an important factor, and put forward the following prevention and control points for pig farmers' reference.

1. Clinical symptoms:

Due to the different pathogens of infection in different pig farms, the clinical symptoms of diseased pigs were different. In most pig farms, the body temperature rose to 41.5 ℃-42.5 ℃, with high fever, mental depression, lethargy and loss of appetite.

1. In some diseased pigs, it is difficult to breathe with clear nasal fluid in the early stage and concentrated nasal fluid in the later stage, resulting in severe abdominal breathing.

two。 Part of the diseased pig ear, eye and face edema, there are secretions, conjunctivitis symptoms, tear spots.

3. After abortion, the body temperature and feed intake of most pregnant sows gradually returned to normal, and the appetite of lactating sows was absolutely no milk.

4. the skin of the affected pig turned red in the early stage, and gradually changed to blue-purple in the later stage, with cyanosis in the skin of the ears, abdomen and extremities, and bleeding in the pores on the back of a few pigs and nosebleeds.

5. The constipation knot of pig stool is spherical; the urine is yellow and few, and a few pigs' urine is blood-colored.

6. dysentery and vomiting of suckling piglets, redness and swelling of the vagina of nursing sows.

II. Prevention and control measures

1. Try to satisfy the normal welfare of pigs as much as possible and raise pigs healthily. In order to adapt to the current epidemic trend of pig disease, we should strengthen the physique and immune function of pigs, and change the principle of "prevention first, prevention is more important than treatment" to "pay equal attention to breeding and prevention, and prevention is more important than treatment".

two。 When the hot season comes, we should try our best to reduce the heat and cool down, reduce the feeding density and reduce the stress of pigs.

3. Do a good job in biosafety measures, especially to strengthen disinfection at key points such as vehicles in and out, pig loading tables, personnel entry and exit, material entrances and exits, etc.

4. Seriously do a good job in the immunization of blue ear disease and circovirus disease vaccine, because the infection of these two viruses seriously damage the immune organs of pigs, cause immunosuppression, and lead to secondary infection of other infectious diseases. And at the same time do a good job of classical swine fever, swine foot-and-mouth disease, swine pseudorabies, porcine mycoplasma pneumoniae, porcine atrophic rhinitis vaccine immunity.

5. In the measures to prevent and control mycotoxin, we should grasp the quality of feed raw materials and try not to use them; at the same time, another effective and practical measure is to add mycotoxin absorbent with strong absorption capacity, wide range, low price and high efficiency in feed for a long time.