Kinh doanh - Marketing
Kinh tế quản lý
Biểu mẫu - Văn bản
Tài chính - Ngân hàng
Công nghệ thông tin
Tiếng anh ngoại ngữ
Kĩ thuật công nghệ
Khoa học tự nhiên
Khoa học xã hội
Văn hóa nghệ thuật
Sức khỏe - Y tế
Văn bản luật
Nông Lâm Ngư
Kỹ năng mềm
Luận văn - Báo cáo
Giải trí - Thư giãn
Tài liệu phổ thông
Văn mẫu
Giới thiệu
Đăng ký
Đăng nhập
Tìm
Danh mục
Kinh doanh - Marketing
Kinh tế quản lý
Biểu mẫu - Văn bản
Tài chính - Ngân hàng
Công nghệ thông tin
Tiếng anh ngoại ngữ
Kĩ thuật công nghệ
Khoa học tự nhiên
Khoa học xã hội
Văn hóa nghệ thuật
Y tế sức khỏe
Văn bản luật
Nông lâm ngư
Kĩ năng mềm
Luận văn - Báo cáo
Giải trí - Thư giãn
Tài liệu phổ thông
Văn mẫu
Thông tin
Điều khoản sử dụng
Quy định bảo mật
Quy chế hoạt động
Chính sách bản quyền
Giới thiệu
Đăng ký
Đăng nhập
0
Trang chủ
Nông - Lâm - Ngư
Nông nghiệp
Pollution and Industrial Poultry Production in America
Đang chuẩn bị liên kết để tải về tài liệu:
Pollution and Industrial Poultry Production in America
Công Sơn
59
36
pdf
Đang chuẩn bị nút TẢI XUỐNG, xin hãy chờ
Tải xuống
Research reports and experience of successful producers indicate that a high standard of bird care is a basic requirement if egg production is to achieve its full potential. High standards of bird care, however, have to encompass both the metabolic needs of a particular species and other factors that evidently contribute to the well-being of animals. The housing of laying hens in cages is currently the most widely accepted confinement system used by producers of table eggs in Canada. Although this system is receiving most of the criticism for failing to meet all the defined acceptable standards of animal welfare, it may provide more advantages. | PEW ENVIRONMENT GROUP CHICKEN Pollution and Industrial Poultry Production in America Cover photos from left David Harp Robert Bennett AGStock Images David Harp Chesapeake Bay Bridge Michael Lutzky The Washington Post Getty Images July 27 2011 Chicken once a distant third to beef and pork is now the most popular meat in the United States. The average American eats almost 84 pounds of chicken a year more than twice the amount eaten in 1970. The American poultry industry has matched this change in appetite with an exponential increase in production. In 2007 for instance 8.9 billion chickens were raised and sold as food in the United States a jump of more than 1 400 percent since 1950. At the same time chicken farms have mushroomed in size by 2006 a typical operation produced an average of 605 000 birds in vast buildings of 20 000 square feet or more. Meanwhile the number of individual farms raising chickens for food has plummeted by 98 percent in just over half a century. This transformation of the industry has been accompanied by an environmental challenge In many cases these large poultry farms pose major pollution problems for regional communities. The Pew Environment Group s new report Big Chicken Pollution and Industrial Poultry Production in America describes how the industrialization and consolidation of the poultry business have concentrated production in what is now known as the Broiler Belt. In this area which extends from eastern Texas through the southeastern United States and north to Maryland and Delaware chickens outnumber people by as much as 400 to 1. The waste produced by these concentrated poultry operations raises serious concerns about treatment and disposal particularly along the shores of the largest estuary system in the United States the Chesapeake Bay. The 523 million chickens produced each year in just Maryland and Delaware generate roughly 42 million cubic feet of chicken waste enough to fill the dome of the U.S. Capitol about 50 times or .
TÀI LIỆU LIÊN QUAN
Assessment of pollution load from industrial activities of Nghi Son economic zone (Thanh Hoa province)
A numerical model study of chemical pollution migration in groundwater near industrial waste storages located in river valleys
The influence of agro-industrial effluents on River Nile pollution
Quantification of pollutants mass and energy consumption as a tool for industrial wastewater pollution control in steel industry
Impacts of pollution discharges from Dinh Vu industrial zone on water quality in the Hai Phong coastal area
Environmental risk assessment of organic pollution on wastewater on industrial parks in Bien Hoa city
Chemical Degradation Methods for Wastes and Pollutants: Environmental and Industrial Applications
Assessment of the current status of waste sludge treatment of the industrial parks in Binh Duong province
Evaluating ecological risk for the occurrence of heavy metal in soil in industrial areas in An Giang province, Vietnam
Industrial gardening - A review
crossorigin="anonymous">
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.