Animal Husbandry and Veterinary Department (AHV) officials said pig deaths in the last two days were mainly reported from Saitual, Aizawl, Serchhip and Khawzawl districts.

At least 300 pigs were culled on Monday and Tuesday to prevent further spread of the contagious disease, bringing the total number of pigs culled in the state this year to 6,504.

Officials said there are pigs in at least 120 villages in six districts: Aizawl, Champhai, Lunglei, Saitual, Khawzawl and Serchhip.

AHV officials said 33,420 pigs and piglets died due to ASF in 2021, 12,800 in 2022 and 1,040 in 2023.

The first ASF case in Mizoram was reported in mid-March 2021, in Lungsen village in Lunglei district along the Bangladesh border, and since then, the disease has re-emerged every year.

An official said that under the Prevention and Control of Infectious and Contagious Diseases in Animals Act, 2009, the department has declared several villages and localities in the six districts as infected areas following the ASF outbreak.

With the rapid spread of the infection, the department has banned the supply of pigs, piglets and pork from infected areas.

The state government also banned the import of pigs and piglets from neighboring states and countries where perpetual infestations of African swine fever are reported.

According to officials, the ASF outbreak mainly occurs when the weather starts warming and pre-monsoon rains begin in the state.

So far, the government has compensated more than 3,000 families for the loss of pigs due to the disease.

According to experts, the ASF outbreak may have been caused by pigs or pork brought from neighboring Myanmar, Bangladesh and neighboring northeastern states.

Pork is one of the most common and popular meats consumed by both tribals and non-tribals in the northeastern region.

With huge demand for pork in the region, its annual business is worth Rs 8,000-10,000 crore in the northeast, with Assam being the largest supplier.