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Production and rearing of hens on a larger scale is called poultry. 50 billion hens are reared world wide for eggs and chicken. Poultry has emerged as one of the major industries in last two decades. India achieved 4th position in the world by producing 41.06 million eggs per annum. It also achieved 5th position for production of meat about 1000 million kgs per annum. Generally poultry farms are of two types. One is for production of eggs and other for meat. Hope this helps you :))