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brooding cages
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brooding cages
Encyclopedia
农学
﹝农业生物环境与能源工程﹞
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brooding cages
育雏笼
专门用于6周龄前雏鸡养殖的笼具。蛋鸡生产0~6周龄称为育雏期,7~18周龄称为育成期,19周龄至淘汰称为产蛋期。在蛋鸡饲养两段制的地区,将鸡从1日龄一直饲养至产蛋前(100日龄左右)的笼具,称为育雏育成笼。
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preoperative preparation
preorder
preorderable group
preordered set
preordering
preorder traversal
preoscillation
preosseous tissue
preovulation
preoxidation
pre oxidizing agent
pre-oxidizing agent
pre packing dimension
pre-packing dimension
prepacking dimension
preparacompactness
preparating lemma
preparation
preparation and approval of recent construction plan
preparation design
preparation for a crime
preparation of aluminum by aluminum amalgam
preparation of amorphous silicon
preparation of cement raw meal
preparation of ceramic matrix composites by sol-gel processing
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