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목록음식문화 (1)
rand(life)
수업자료공유2- 우수한 육류공급원인 돼지, 그리고 마빈 해리스의 책
Of all domesticated mammals, pigs possess the greatest potential for swiftly changing plants into flesh. Over its lifetime a pig can convert 35 percent of the energy in its feed to meat compared with 13 percent for sheep and a mere 6.5 percent for cattle. A piglet can gain a pound for every three to five pounds it eats while a calf needs to eat ten pounds to gain one. A cow needs nine months to ..
영어관련
2010. 11. 4. 16:04