The breeding pig could be the carrier of the pseudo-rabies virus, which infected piglets through sows during pregnancy or lactation.

种猪可能是伪狂犬病毒携带者，在妊娠期或哺乳期经母体感染。

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That's important because breeding could dilute the qualities that make a pig medically useful.

这极为重要，因为育种能冲淡猪的特性，这使猪能在医学上更有用。

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Based on the detailed data, China is the biggest pig breeding country, consumption country, while the small pork exporting country.

以详细的数据介绍了中国是世界第一养猪大国、第一猪肉生产大国和消费大国，又是世界猪肉出口小国的状况。

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At the start of the year, new and expensive rules on pig breeding came into force.

ECONOMIST: A pig of a problem

Jonathan French said friend Jeremy Barber spent about 40 years building up his pedigree pig breeding business at Seaborough Manor near Beaminster.

BBC: Jonathan French (chk sp)