Chulalongkorn researchers create synthetic boar scent to help pig breeding and cut disease risk

Chulalongkorn University researchers have developed a synthetic boar scent that mimics natural pheromones and can help stimulate breeding behavior in gilts without direct contact with live boars. The work could reduce the risk of spreading diseases such as African swine fever on pig farms while offering farmers a safer, easier tool for reproductive management.

Why it matters: - Pig farms often rely on live boars to trigger estrus in gilts, but direct contact can spread disease. - The new synthetic scent offers a safer alternative for breeding management. - The approach matters especially for disease control because African swine fever has no vaccine or treatment. - Farmers also lose money when gilts fail to enter estrus at the right age and are diverted to meat production.

What happened: - Researchers from Chulalongkorn University’s Faculty of Veterinary Science developed a synthetic boar scent that mimics natural pheromones. - The team was led by Prof. Dr. Padet Tummaruk, D.V.M., with Dr. Isaya Thaveesangsakulthai, Ph.D., an expert in chemical communication. - The research was published in a Tier 1 international scientific journal in early 2026. - The work also led to a petty patent application. - Read the full article at the university’s announcement.

The details: - The team collected scent samples from mature boars and analyzed them with gas chromatography. - Researchers identified 23 key odor compounds and used them to formulate the synthetic scent. - In comparative trials, a live boar induced estrus behavior in about 75% of gilts. - The synthetic scent triggered estrus behavior in about 50% of gilts. - The unstimulated control group showed a response rate of only 18%. - The synthetic formulation is plant-based, non-irritating and safe for people to handle. - Farmers can spray the scent onto a pad attached to a rod and present it to the gilt to sniff. - Several large pig farms have already expressed interest in testing the prototype.

Between the lines: - The synthetic scent is less effective than a live boar, but it reduces handling risks and removes the need to bring large animals into close contact with gilts. - The project reflects a practical push to build lower-cost, locally made farm tools in Thailand. - The patented scent approach could also create a platform for future scent-based diagnostics in pig reproduction.

What's next: - The research team plans to study gilt scent profiles. - That work could support new diagnostic tools for reproductive management in pig farming. - The team is also looking to turn the product into an affordable Thai-made option for farmers.

The bottom line: - Chulalongkorn University’s synthetic boar scent could help farms improve breeding control while lowering the disease risks tied to live-boar contact.