Chicken stomach erosion
The disease is mostly caused by feeding inferior fish meal.
[main symptoms]
The diseased chicken has stunted growth, pale crown, loss of appetite, dehydration, dishevelled feathers and sleepiness. Occasionally diseased chickens shed dark liquid from their mouths. The autopsy was characterized by myogastric mucosal erosion, ulcer and bleeding. It occurs mainly in 3-to 6-week-old chicks, which are sporadic and sometimes have a mortality rate as high as 20%.
[prevention]
The amount of fishmeal should be controlled or inferior fishmeal should not be used. Drinking water with 0.1% potassium permanganate at the initial stage after onset. Vitamin K (5 mg / kg) or vitamin C (50 mg / kg) or vitamin B6 (5 mg / kg) can be added to the feed. If 0.15% sulfamethazine is added to the feed, it has a good curative effect on the disease.
- Prev
Different types of pigs have different immunity.
Immunity of backup pigs. The reserve pigs should be vaccinated with the following vaccine one month before breeding and after weaning sows: ⑴ classical swine fever vaccine, 4 doses each. ⑵ combined vaccine of porcine erysipelas and porcine pneumoconiosis, 1 copy per head. ⑶ porcine Japanese encephalitis vaccine, 1 dose per head. ⑷ porcine parvovirus vaccine, 1 dose each (inactivated vaccine can be vaccinated twice at an interval of 15 days). ⑸ porcine pseudorabies vaccine should be used according to the instructions. Immunity of parturient pigs. Parturient sows should be vaccinated with the following vaccines 15-40 days before delivery: ⑴ piglet Escherichia coli quadruple vaccine (K88, K99, 9)
- Next
Occurrence and control of epidemic diseases in different feeding stages of pigs
The incidence of swine fever, swine erysipelas and porcine lung disease are collectively referred to as the three major infectious diseases of pigs. In China, the total mortality rate of infected pigs accounts for about 8% of the total, and the mortality rate of pigs in areas with better prevention and control is also 5%. Therefore, the level of prevention and control of pig disease should be improved. If the total mortality rate of pigs can be reduced by one percentage point every year, which is equivalent to an increase of 5 million pigs, what a great wealth it is. According to the relevant statistics,
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