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11 Summary: Meeting the Challenges of the New Century
Pages 72-77

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From page 72...
... Only a few vitamins and minerals were identified, and essential amino acids and essential fatty acids were not understood. Progress during this period in developing an understanding of nutrition came about predominately through trial and error.
From page 73...
... The CAN reports provide the latest nutritional information so that various feedstuffs and byproducts can be considered on an individual farm basis and utilized in formulating balanced diets for livestock. For example, even now, 25 percent of poultry and swine diets and 50 percent of Florida dairy cattle diets are byproducts from human food and fiber industries.
From page 74...
... in milk and meat are increased. CLAs are potent naturally occurring anticarcinogen and the National Research Council has pointed out that they are the only fatty acids known to unequivocally inhibit cancer in animal models.
From page 75...
... Feeding animals adequate amounts of a well-balanced diet will allow the animal to maintain productive efficiency while reducing the excretion of excess, unutilized nutrients that may have adverse environmental impacts. For example, reducing animal waste content of nutrients such as nitrogen, phosphorus, copper, and selenium is beneficial in protecting soil and water quality and enhancing the sustainability of animal agriculture.
From page 76...
... Additional dietary additives that can be produced by recombinant DNA technology have the potential to enhance rumen microbial fermentation processes thereby increasing the animal's productive output per unit of resource input. CONCLUSIONS The Committee on Animal Nutrition of the National Research Council's Board on Agriculture and Natural Resources has overseen the preparation of reports relating to over two dozen animal species.
From page 77...
... Sustainable agriculture, food safety and quality, animal care and well-being, environmental quality, and international trade and development are all areas where the reports from the National Research Council's CAN have played a vital role. Clearly, CAN reports will continue to be a key element in the efficiency, health, and wellbeing of animals and humans throughout the world.


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