The body is usually divided into cephalothorax and abdomen. 體軀通常分為頭胸部和腹部?jì)刹糠帧?/li>
They have sturdy structure and well-developed body, higher reproductivity, better adaptability, heat tolerance and easy feeding and management. 體質(zhì)結實(shí)，體軀發(fā)達，繁殖率高，適應性強，耐熱，耐粗飼。
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