本书共12章，以讨论家畜生理功能为主，在相关章节中适当引入家畜生理作为对比。内容包括：细胞的基本功能、血液、血液循环、呼吸、消化与吸收、泌尿、能量代谢与体温调节、神经系统的功能、内分泌、生殖和泌乳。
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