Around 130,000 pigs have killed on large commercial farms in Bulgaria over the past few weeks, amid a “worrying escalation of African swine fever (ASF) cases in domestic pigs in eastern Europe”, according to the National Pig Association (NPA) in the UK.

Bulgaria has reported more than 30 outbreaks across 10 regions since early July, including six on large commercial farms in the north of the country, close to the Romanian border, the UK association noted.

These included a farm with 36,000 pigs, alongside others with 28,000 and 17,000 pigs and, most recently, an outbreak on a farm with just over 8,000 pigs confirmed on Friday.

20km sanitary zones have been set up around all registered commercial pig farms, with officials ordering the culling of home-raised pigs in these zones, according to reports, the NPA added.

Quoting Reuters coverage, the pig association noted that there are reports that the move is causing unrest, with protest rallies held in several parts of southern Bulgaria on Friday, as hundreds of pig keepers resist the orders, arguing that there have been no outbreaks in their regions.

After 31 mayors in the southern Pazardzhik district issued a joint statement saying they would not allow the culling to proceed, Agriculture Minister Desislava Taneva extended the deadline for culling in the area from August 2 to August 11.

However, representatives of Bulgaria’s commercial pig industry, backed by meat industry representatives, have called for a nationwide state of emergency to be declared, with even stricter measures to be introduced to curb disease spread.

There have been reports the authorities are considering the possibility of a mass cull of all home-reared pigs, if pig keepers do not abide by the veterinary rules set down, according to the NPA.

Contaminated vehicles are thought to be responsible for the first two outbreaks in Bulgaria on non-commercial farms, the UK Animal and Plant Health Agency said.

“But it remains to be seen if the same is true for the large commercial premises which would have higher biosecurity protocols,” the agency said in its latest assessment of ASF spread in Eastern Europe.

Eastern Europe

There has been a significant increase in the number of outbreaks in domestic pigs reported by Romania, with around 300 cases, mostly in backyard holdings, but including a 20,000-pig commercial farm.

This compared with 76 cases in June, the NPA said.

Meanwhile, Slovakia reported its first case was found in late July in a pig on a backyard holding in a village a few kilometres from the border with Hungary, where ASF has been found in wild boar.

Four other susceptible pigs on the holding were slaughtered. A second case was identified in a single case on a holding 5km away a few days later.