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colony cages for layer breeders
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colony cages for layer breeders
Encyclopedia
农学
鸡饲养方式
释
colony cages for layer breeders
种鸡本交笼饲养
将种公鸡和种母鸡按照一定比例混养于同一特殊笼具内,用鸡只本能的自然交配代替人工授精获取种蛋的养殖模式。
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stable minimal submanifold
stable model
stable model semantics
stable node
stable nuclear region
stable nucleus
stable nuclide
stable nuclide tracer technique
stable operation
stable orbit
stable organization
stable pair
stable particle
stable period
stable phase
stable point
stable polyhedron
stable polynomial
stable population
stable process
stable programming
stable prominence
stable radical polymers
stable random sequence
stable range
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