This article provides a brief review of digestion and absorption of nutrients. Comparisons of the digestive system among various farm animals are provided in ''GI tract: Anatomical and functional comparison.''1-4-1 A detailed description of the pig's digestive system has been published.[5] A monograph[6] has also discussed comparative anatomy and physiology of the digestive system in major groups of vertebrates. The two major challenges facing animal agriculture are manure disposal and odor control. These environmental concerns are created primarily by the inefficiency in digestion, absorption, and metabolism of dietary nutrients by the animal and oversupply of nutrients in the diet to maximize individual animal performance. To be environmentally friendly and socially responsible, animal research should be directed toward improving digestive and metabolic efficiency of dietary nutrient utilization by the animal, optimizing the accretion of wholesome, nutritious, and tasteful animal products, and minimizing nutrient excretion and odor emission.

101 Everyday Tips for Losing 10 Pounds

101 Everyday Tips for Losing 10 Pounds

Studies show obesity may soon overtake tobacco as the leading cause of death in world. Who Else Could Use 101 'Everyday' Ways to Lose 10 Pounds or more and Keep it Off! You've been putting it off too long. Hey, everyone needs to lose weight from time to time. You're no different!

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