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A big-picture approach to manure management
时间:2009-12-18 11:54:43来源:作者:山峰
By Resource Magazine - Livestock production in many industrialized countries during past decades has gone through significant structural changes - from being a component of mixed farm activities to becoming a specialized industry. Now, livestock production can provide large quantities of high-quality meat and other animal products to increase the standard of living and meet the needs of a growing world population.
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