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首页> 外文会议>2000 National Poultry Waste Management Symposium, Oct 16-18, 2000, Ocean City, MD >FEEDING STRATEGIES TO REDUCE PHOSPHORUS OUTPUT
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FEEDING STRATEGIES TO REDUCE PHOSPHORUS OUTPUT

机译：降低磷产量的喂养策略

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Recent events in the US have brought the issue of phosphorus (P) content in poultry litter to the forefront among legislators, the public, poultry growers, and integrators. In Delmarva, new legislation will limit the use of litter application to soil (based, in part, on soil P content). Given limited land for litter application in certain areas of the U.S.A. where the greatest concentration of poultry production exists today, the poultry industry and poultry producers must find strategies that reduce P in litter with the least impact on income. The challenge of minimizing excreta P is one, that sooner or later, will have to be faced by the poultry industry nationwide. Different strategies exist to reduce excreta P but the most effective strategies will be those that are multi-facetted. Not one single strategy will solve the problem of excess P associated with poultry litter. Pre-and post-production strategies must be integrated if a comprehensive and economically feasible solution is to be found. Pre-production strategies refer to strategies that are implemented before the excreta is generated by the bird. These strategies include feed formulation changes (including use of feed additives, ingredient choices, levels of minerals in the diet), genetic improvements to increase the bird's efficiency of nutrient use, and bird management changes that improve feed efficiency. These pre-production strategies can greatly influence the nutrient content of poultry litter. Post-production strategies refer to strategies that are implemented after the excreta is produced. These strategies include litter treatments that change the solubility of P, composting, shipping litter out of areas with excess soil P, burning poultry litter for fuel, etc.
机译：美国最近发生的事件使家禽垫料中磷（P）含量的问题成为立法者，公众，家禽种植者和整合者中最重要的问题。在德尔马瓦（Delmarva），新法规将限制在土壤中使用垫料（部分基于土壤P含量）。鉴于当今美国某些地区的家禽生产最为集中，用于垫料的土地有限，因此，家禽业和家禽生产商必须找到减少垫料中磷含量对收入影响最小的策略。最小化排泄物P的挑战是全国家禽业迟早要面对的挑战。存在减少排泄物P的不同策略，但最有效的策略是多方面的。没有一个单一的策略可以解决与家禽垫料相关的过量磷的问题。如果要找到全面且经济可行的解决方案，则必须整合生产前和生产后的策略。生产前策略是指在禽类产生排泄物之前实施的策略。这些策略包括饲料配方的改变（包括饲料添加剂的使用，成分的选择，饮食中矿物质的含量），遗传改良以提高禽类的营养利用效率，以及禽舍管理的改变以提高饲料效率。这些预生产策略可以极大地影响家禽垫料的营养成分。生产后策略是指排泄物产生后实施的策略。这些策略包括改变P溶解度的垃圾处理，堆肥，将土壤中P过多的垃圾运出，燃烧家禽垃圾作为燃料等。

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