In order to reveal the immune antibody levels and immune effect of livestock and poultry in the locality,we performed antibody surveillance on severe animal diseases in 17 livestock and poultry fields in six administr...In order to reveal the immune antibody levels and immune effect of livestock and poultry in the locality,we performed antibody surveillance on severe animal diseases in 17 livestock and poultry fields in six administrative districts of Wuhan City. The results showed that the vaccines had a good protective efficacy on highly pathogenic avian influenza( HPAI) and Newcastle disease( ND) in Wuhan City. The whole antibody levels kept above the ministerial standard( 】 70%).However,the vaccine immunity of porcine reproductive and respiratory syndrome( PRRS),swine fever( SF) and foot and mouth disease( FMD) was still poorly protective. The data indicated that the vaccines are protecting the severe animal diseases well,but there are still some potential security holes in some administrative districts.展开更多
This study was conducted to understand the effect of the livestock liquid fertilizer treatment at field-scale up to catchment-scale on the water quality properties. Cultivated paddy rice and upland plots located in Gy...This study was conducted to understand the effect of the livestock liquid fertilizer treatment at field-scale up to catchment-scale on the water quality properties. Cultivated paddy rice and upland plots located in Gyeonggi province, Korea were treated with two different liquid fertilizers, SP (Liquid fertilizer with storage process) and SCB (Liquid fertilizer with slurry composting and bio-filtration process). Plots with no fertilizer (control A) and chemical fertilizer (control B) were also prepared for comparison. Water quantity and quality were monitored at the catchment outlet for assessing the effect on water quality of stream water. As a result, the losses of N and P and the values of EC (Electronic Conductivity) in the surface drainage water from paddy rice plots treated with SP and SCB were higher than those from the control plots (A and B). In addition, the losses of N and P by the runoff water from upland plots with SP and SCB treatment were higher than those from control plots (A and B). The nutrient outflow from paddy rice fields and uplands with application of liquid pig manure was higher than those from the control plots (A and B). Particularly, the outflow from uplands may directly affect the water quality in neighboring streams. This caused the major eutrophication problem in stream water. In conclusion, it is necessary to establish the proper management practices to prevent the nutrient losses from agricultural fields and the pollutants against water environments.展开更多
基金Supported by High Tech Industry Development Plan of Wuhan City(201220812240-6)
文摘In order to reveal the immune antibody levels and immune effect of livestock and poultry in the locality,we performed antibody surveillance on severe animal diseases in 17 livestock and poultry fields in six administrative districts of Wuhan City. The results showed that the vaccines had a good protective efficacy on highly pathogenic avian influenza( HPAI) and Newcastle disease( ND) in Wuhan City. The whole antibody levels kept above the ministerial standard( 】 70%).However,the vaccine immunity of porcine reproductive and respiratory syndrome( PRRS),swine fever( SF) and foot and mouth disease( FMD) was still poorly protective. The data indicated that the vaccines are protecting the severe animal diseases well,but there are still some potential security holes in some administrative districts.
文摘This study was conducted to understand the effect of the livestock liquid fertilizer treatment at field-scale up to catchment-scale on the water quality properties. Cultivated paddy rice and upland plots located in Gyeonggi province, Korea were treated with two different liquid fertilizers, SP (Liquid fertilizer with storage process) and SCB (Liquid fertilizer with slurry composting and bio-filtration process). Plots with no fertilizer (control A) and chemical fertilizer (control B) were also prepared for comparison. Water quantity and quality were monitored at the catchment outlet for assessing the effect on water quality of stream water. As a result, the losses of N and P and the values of EC (Electronic Conductivity) in the surface drainage water from paddy rice plots treated with SP and SCB were higher than those from the control plots (A and B). In addition, the losses of N and P by the runoff water from upland plots with SP and SCB treatment were higher than those from control plots (A and B). The nutrient outflow from paddy rice fields and uplands with application of liquid pig manure was higher than those from the control plots (A and B). Particularly, the outflow from uplands may directly affect the water quality in neighboring streams. This caused the major eutrophication problem in stream water. In conclusion, it is necessary to establish the proper management practices to prevent the nutrient losses from agricultural fields and the pollutants against water environments.
