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Animal anatomy and physiology

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Sex and Age Characteristics of Poultry Poultry are domesticated birds that are bred specifically to provide meat and eggs for human consumption. They include fowl, ducks, geese, turkeys and guinea fowl. Fowl are the main source of meat and eggs for consumption. They all come from two generic flocks: (1) Chicken or broiler . Bred for poultry meat production. These birds are specifically bred from the Light Sussex cross for rapid weight gain, white flesh, long body and good breast-meat development. They can be recognised by their white feathers, some of which will remain on the dressed bird. They get the name broiler from the broiler houses in which they are bred. A broiler house can hold up to 20000 or more birds. They are only 6–8 weeks old at the time of slaughter. (2) Hen . Although sold for meat as hens or boiling fowl, they are specifically bred for their egg production capabilities. They are from a Rhode Island Red cross and can be recognised by their red-brown feathers. They are ...

water supply

LECTURE NOTES For Environmental Health Science Students Water Supply I Zeyede Kebede Tesfaye Gobena Alemaya University In collaboration with the Ethiopia Public Health Training Initiative, The Carter Center, the Ethiopia Ministry of Health, and the Ethiopia Ministry of Education 2004 Funded under USAID Cooperative Agreement No. 663-A-00-00-0358-00. Produced in collaboration with the Ethiopia Public Health Training Initiative, The Carter Center, the Ethiopia Ministry of Health, and the Ethiopia Ministry of Education. Important Guidelines for Printing and Photocopying Limited permission is granted free of charge to print or photocopy all pages of this publication for educational, not-for-profit use by health care workers, students or faculty. All copies must retain all author credits and copyright notices included in the original document. Under no circumstances is it permissible to sell or distribute on a commercial basis, or to claim authorship of, cop...