tailieunhanh - Putting Meat on the Table: Industrial Farm Animal Production in America

Some water moves through the skin of mammals by insensitive diffusion. Most of the water, which passes through the skin, however, does so in the form of active sweating. Larger mammals usually sweat to dissipate heat. Among the domestic species, both camels and cattle have adopted this mechanism. A characteristic of the camel is that there is no copious flow of sweat or obvious wetting of the hair. The evaporation takes place at the surface of the skin and not at the extremities of the hair. The latent heat of evaporation is therefore drawn from the skin rather than from. | A Project of The Pew Charitable Trusts and Johns Hopkins Bloomberg School of Public Health Putting Meat on the Table Industrial Farm Animal Production in America LUJQ A Report of the Pew Commission on Industrial Farm Animal Production Putting Meat on the Table Industrial Farm Animal Production in America CONTENTS Foreword by John Carlin ii Preface by Robert P. Martin vi How the Current System Developed x Public Health 10 Environmental Risks 22 Animal Welfare 30 Rural America 40 Conclusion Toward Sustainable Animal Agriculture 50 The Recommendations of the Commission 56 References 96 Endnotes 104 Final Report Acknowledgments 106 .

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