31/05/2010
While Dong Nai authorities have not confirmed the disease in local green ear, many pig farm owners say people are living with the epidemic.
"For years people here live pigs with blue ear disease. Now find a farm fresh green ear disease in new Dong Nai is strange," said C., owner of a pig farm in the province, said .
Vaccine-styled "poor children"
According to Mr. C., up to 90% of the total herd in Dong Nai blue ear disease. "For as I have herd of up to 100% of blue ear disease. When detecting blue ear disease in both camps, the mean green ear herd carrier and then, by infectious diseases, including inhalation," he said.
For years, for patients living with green ears, pig farms usually vaccinated or "vaccine" made from pig blood serum or illness. According to Mr. C., an injection "vaccine" is a method of restraint, "the poor", but slightly less loss of money, help reduce the loss of herd infection from 20-40% to 50-10% so few farms in Dong Nai are applied.
When the herd started blue ear disease, for farm owners to take blood or serum of the pig disease vaccine for the whole flock to help them create antibodies. "I picked out a number of children from 80 to 100kg to take blood. After that, blood will be mixed with anticoagulants and antibiotics and injections for children from 7 to 40 kg. Each 10cc of blood. In the period long-term stability, I also take blood contaminated injecting blue ear pig for the whole flock to actively create antibodies for now, "said C. said.
As a veterinary staff of Dong Nai province, the U.S. documents mentioned methods of creating "vaccines" self-made with less expensive to purchase vaccines. "Where performance is not clear but some farm owners are considering this application and the method of" fire fighting "to save money," the vets said.
Meanwhile, the majority of pig farms in Dong Nai selection method for vaccine herd. This way, loss of green ears infected herd down to 10 -15%. "A child must be vaccinated sows five nasal vaccines a year. Each nose copper price is now 45,000. With a 1000 sow farm all the money green ear vaccine each year to well over 200 million" , Mr. K., the owner of a farm in the province, said.
"Bomb" will explode?
Mr. K. worry, there are signs that this year will be a difficult year for the pig sector in Dong Nai: the weather is too hot, PRRS outbreaks in many localities ... "The pig must actively room service, cleaning cages, control and expand the herd density, increase resistance to pig, biosafety implementation, the program must have a specific vaccine. If done well without this step I think blue ear disease pressure will peak and will explode, "he said.
A staff of Agriculture Extension Center in Trang Bom district (local pig herd is the second largest with 180,000 children in Dong Nai Province), said that blue ear "explosion" in Dong Nai will be a disaster for the livestock industry provinces with more than a million pigs. In 2009, authorities detected an outbreak of blue ear in eight villages, Thanh Son commune, Dinh Quan district.
According to Dong Nai Department of Animal Health, the province has antiseptic, disinfection of the slaughter of cattle and intensify the inspection of cattle for sale, deployment vaccinated animals ... If PRRS occurs throughout the Nations, the province will arrange additional checkpoints: Mr. Don Bridge Gia Huynh, Tan Phu, Tan Gia ...[Ông Đồn, cầu Gia Huynh, Tân Phú, Gia Tân]
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