Nitrogen and phosphorus consumption, utilisation and losses in pig production:: France
Nitrogen and phosphorus consumption, utilisation and losses in pig production:: France
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DOI：
10.1016/s0301-6226(99)00009-3
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发表时间：
1999-04-30
期刊：
影响因子：
--
通讯作者：
Sève, B
中科院分区：
文献类型：
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作者：
Dourmad, JY;Guingand, N;Sève, B
虽然法国的猪密度（80头/年/km（2））低于欧盟的平均水平（140头/年/km（2）），但一些集约化动物生产（720头/年/km（2））的地区不得不面临与动物粪便过剩有关的环境问题。根据立法，动物粪便中的氮含量不应超过170公斤/公顷。本文介绍了法国养猪生产中氮磷消耗、利用和损失的实际情况。据计算，平均67%的氮和66%的磷消耗的猪排泄在粪便和尿液。饲养技术的改进可以减少15%至30%的氮和磷排泄的动物，和氨的损失在大气中。这些改进的营养基础进行了说明。(C)1999 Elsevier Science B. V.保留所有权利。
Although pig density in France (80 pigs produced/year/km(2)) is lower than on average in the European Union (140 pigs/year/km(2)), some regions with intensive animal production (720 pigs/year/km(2)) have to face environmental problems related to a surplus of animal manure. According to the legislation, the amount of nitrogen from animal manure should not exceed 170 kg/ha. The actual situation for nitrogen and phosphorus consumption, utilisation and losses in pig production in France is described in this paper. It was calculated that on average 67% of the N and 66% of the P consumed by the pigs is excreted in faeces and urine. Improvements in feeding techniques could reduce by 15 to 30% N and P excretion by the animals, and ammonia losses in the atmosphere. The nutritional basis for these improvements is described. (C) 1999 Elsevier Science B.V. All rights reserved.