1. What is PRRS harmful to breeding pigs?
Answer: 1 The semen quality of the boar is degraded and the semen contains virus. 2 The sow causes premature birth, miscarriage, heavy estrus, no arrhythmia, weak acrobatics, eight-legged legs and so on.
2. What is the risk of blue ear disease in China's pig industry?
A: The transition from acute to chronic, virus subtypes exist, different groups of immunity are different, the source of virus infection is also different, so that the antibody can not be produced at the same time and cause horizontal infection. Frequent morbidity is caused by new subtypes of sows and exotic pigs.
3. What is the danger of blue ear disease to piglets?
A: Blue ear disease causes piglet thymus atrophy, T lymphocyte decrease, immunity decrease, and at the same time destroy lung 1: 1: type I epithelial cells (having phagocytic ability), causing a variety of bacterial and viral infections, resulting in death.
4. Can blue ear disease make a dead pig dead?
A: Blue ear disease does not kill non-bacterial pigs. Only the second infection due to PRRS will cause the pig to die.
5. What is respiratory syndrome?
Answer: Diseases caused by respiratory diseases in weaned piglets and piglets in pig farms. Symptoms include: weight loss, coarse hair, wheezing, abdominal breathing, and respiratory syndrome.
6. What are the primary pathogens of respiratory syndrome?
A: Includes blue ear disease, swine influenza, pseudorabies, porcine respiratory coronavirus, circovirus, and swine fever.
7. What are the original symptoms of respiratory syndrome?
Answer: There are Salmonella, Mycoplasma pneumoniae, Pasteurella, Streptococcus, Escherichia coli, Erythrozoite, Borrelia, Actinobacillus, Paratuberculosis.
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