BOAR spokesperson Trevor Wilson said Daylesford Secondary College students should never have been involved in the slaughter of a pig and a cow to make bullboar sausages.

But the sausages were selling like hotcakes, with students struggling to keep up with demand.

Bullboar committee member Liam Thornycroft said they had proved popular.

"It's been going very well," he said.

The students, who are taking part in ABC Radio National's Young Gourmet competition, housed a 100kg pig and a three-year-old steer on the school grounds.

The animals were later butchered and made into traditional bullboar sausages and sold at the fair and on a website.

Mr Wilson said schools were for educating, not desensitising and debasing students.

"They have all suffered," he said.

He and other BOAR members were "horrified" when they learnt of the school's intentions.

"We would hope to get the message through so that it never happens again," he said.

He was concerned about the long-term effects the project could have on the children.

"When you desensitise people, who knows what they can turn into," he added.

However, Mr Thornycroft said the sausages were a hit.

"People really like the taste," he said.

"They've said they are salty, nice and strong and don't have too much garlic."

Mr Thornycroft said committee members realised they had made a mistake by bringing the pig and cow on to schoolgrounds.

"We understand and we did make the mistake of putting the pig in the school grounds for people to get attached to it," he said.

"We would do it all again, but would change some things."

Mr Thornycroft said when committee members heard about the outcry by some members of the community, they thought all their hard work was in vain.

"At the start we sort of panicked a bit and thought the whole thing was going to go down the drain," he added.

Mr Wilson has called on Education Minister Lynne Kosky to put an end to similar projects.

"We feel that Lynne Kosky should make a requirement that animals are not used this way in education."

Yesterday BOAR was also seeking support for its boycott cruelty campaign, which classes factory farming as industrialised cruelty.