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Vhon Ni Zhang

Environment And Economic Damage Combine To Hit The Poor Hardest - 1 views

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    Environmental damage caused by economic activities like coal plant electrical generation and mining is costing the global economy as much as US$4.7 trillion a year. That is what is revealed in a report released on 15 April and commissioned by the Group of Eight economic powers and the United Nation's Environmental Programme.
Pao Daiki

Better Feed Efficiency Also Means Fewer Environmental Concerns From Chicken Litter - 1 views

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    Phytase can be relatively cheaply and easily produced and added to poultry feed, but that solves only one aspect of the problem. "Another anti-nutritive factor found in cereal grains used in broiler diets include the presence of non-starch polysaccharides - NSP, which are fibrous material found in plant cell walls," Lee said. "Chickens lack the digestive capacity of ruminant animals and the presence of NSP in the diet increases intestinal viscosity resulting in decreased digestibility of the diet." Fortunately, according to Lee, another enzyme, carbohydrase, can help increase Digestibility of high fiber broiler diets. Both enzymes need be added at low rates, typically from 0.25 to 1 pound per ton of feed. But a question remained: Which strains of the two enzymes were best combinations for chicken health and feed conversion efficiency? To determine this, Lee has been conducting studies comparing how multiple levels of phytase affects the bio-availability of phytate with and without non-starch polysaccharides. The feed tested was a combination of corn and soybean meal with added vitamins and micronutrients - a standard poultry ration. The relationship between the effects of the two enzymes turned out to be more complicated than expected. Non-starch polysaccharides increased the bioavailability of phosphorus but at only one of the three levels of phytase concentrations tested. The results of his study will give commercial poultry producer's information they need to fine-tune feed mixture to reduce phosphorus runoff from chicken litter without endangering flock health, Lee said. Related Article: http://www.quora.com/Kazmier-Lokkines/crown-eco/Crown-capital-eco-management-environment-blog-Biomass-Boiler-Addresses-Alaskans-Environmental-Economic-Concerns-1
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