Rabbit villus density, high yield, good sales, price stability, rabbit resistance and strong, easy keepers.

兔绒毛密度大、产量高、销路好、价格稳、兔的抗病能力强，易饲养。

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Their metabolism, engineered to subsist on meager amounts of food, has continued for centuries, making them easy keepers with low maintenance needs.

其新陈代谢，工程食品微薄的生活费，已经持续了几百年，使它们容易饲养与低维护需求。

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"The elephants are very domesticated, so I think most are easy to treat because they have been trained by the mahouts, the keepers, " says Lindsjo.

CNN: Volunteer vets keep Thailand's elephants on their feet