chick rearing battery

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Chick culling — is the culling of newly hatched male chickens for which breeders have no use. In an industrial egg producing facility, about half of the newly hatched chicks will be male and would grow up to be roosters, which do not lay eggs and therefore… … Wikipedia
Debeaking — A White Leghorn pullet with a trimmed beak … Wikipedia
Life Sciences — ▪ 2009 Introduction Zoology In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… … Universalium

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