What is the difference between protectionism and raising barriers to entry?

Don't import pig semen into Australia.

"Federal agriculture minister Bridget McKenzie said breaches of biosecurity laws would not be tolerated.

"“'his case shows a disturbing disregard for the laws that protect the livelihoods of Australia’s 2,700 pork producers, and the quality of the pork that millions of Australians enjoy each year,' McKenzie said.

"“GD Pork imported the semen illegally in an attempt to get an unfair advantage over its competitors, through new genetics.'

"Western Australian Farmers Federation spokeswoman Jessica Wallace said the offences was 'a selfish act' that could cripple an entire industry.