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首页> 外文期刊>Livestock Science >A survey of manure management on pig farms in Northern Vietnam.
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A survey of manure management on pig farms in Northern Vietnam.

机译：越南北部养猪场粪便管理调查。

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Animal manure can provide nutrients for crop and fish production and input for biogas production but, if managed inappropriately, can also have a negative impact on the environment. The objective of this survey was to provide information about pig production and manure management practices in the Northern part of Vietnam in order to identify and prioritize research needs for future improvements in pig manure management. A survey was conducted by in-depth interviews on 54 pig farms in two Northern Vietnamese provinces, Thai Binh and Bac Giang. In addition to the survey, also key informant responses were obtained in the two provinces to help identify problems with existing manure management. The survey showed that large-scale pig producers (>100 fatteners or 20 sows) had more pigs per hectare than medium-scale (19-99 fatteners, 5-19 sows) or small-scale (<19 fatteners, <5 sows) producers. Biogas was produced from 43% of the total manure produced on all surveyed farms, and was used for cooking. The proportion of total manure applied to crops was only 5% in Thai Binh and 35% in Bac Giang. Large-scale producers tended to operate smaller fishponds, and medium-scale farms operated larger ones. The farmers were of the opinion that fish in ponds fertilized with pig manure grew significantly faster than did fish in ponds supplied with other feed or types of fertilizer. Twenty percent of pig producers reported that they raised pigs just to provide manure to feed their pond fish. A large proportion (19%) of the total manure produced was discharged into public sewage systems, rivers and lakes. Of the 54 householders interviewed, 46 believed that animal manure caused serious damage to the environment. Farmers interviewed had little or no expertise in handling liquid manure, composting solid manure, or reducing contamination by means of microbial reduction of pollutants during manure management. In general, specialized pig production is seen as a commercial operation, while manure management remains non-commercial. The survey implied that more information to farmers, as well as stronger regulation of manure management, is needed in Vietnam.
机译：动物粪便可以为作物和鱼类的生产提供营养，并为沼气的生产提供投入，但如果管理不当，也会对环境产生负面影响。这项调查的目的是提供有关越南北部生猪生产和粪便管理实践的信息，以便确定研究需求并确定其优先级，以便将来改善猪粪管理。通过对越南北部两个省Thai Binh和Bac Giang的54个养猪场的深入访谈进行了一项调查。除调查外，这两个省还获得了重要的信息提供者回应，以帮助发现现有粪便管理中的问题。调查显示，与中等规模（19-99头肥猪，5-19头母猪）或小规模（<19头肥猪，<5头母猪）相比，大型猪生产者（> 100头肥猪或20头母猪）每公顷的猪多。生产者。在所有被调查的农场中，产生的沼气占粪便总量的43％，并用于做饭。泰平的全部肥料比例仅为5％，而北江的比例为35％。大型生产者倾向于经营较小的鱼塘，中型养殖场则经营较大的鱼塘。农民认为，用猪粪施肥的池塘中鱼类的生长速度明显快于其他饲料或肥料类型的池塘中鱼类的生长速度。 20％的养猪生产者报告说，他们养猪只是为了提供粪便来喂养池塘里的鱼。产生的粪便中有很大一部分（19％）被排放到公共污水系统，河流和湖泊中。在接受采访的54位家庭中，有46位相信动物粪便对环境造成了严重破坏。接受采访的农民在处理液体粪肥，堆肥固体粪肥或在粪肥管理过程中通过微生物减少污染物的方式减少污染方面几乎没有专门知识。通常，专业的生猪生产被视为商业操作，而粪便管理仍然是非商业性的。该调查表明，越南需要向农民提供更多信息，并加强对粪便管理的监管。

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