What are advantages of factory farming​

Factory’ Farming or ‘Intensive’ Farming refers to the globally adopted farming system that involves crowding large groups of livestock into confined indoor spaces, such as stalls or cages. The USDA defines any farm with more than 1,000 cattle, 2,500 pigs or 125,000 chickens as a Concentrated Animal Feeding Operation (CAFO) or intensive farming system. In the EU, officials have defined intensive farms as those carrying more than 40,000 chickens or 2,000 pigs.

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a tetrad is the foursome during meiosis made by two homologous chromosomes that have each already replicated into a pair of sister chromatids.

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