沈阳地区集约化猪场和鸡场环境现状调查

调查测试表明：沈阳地区集约化猪鸡场的畜舍保温隔热性能较差，畜舍外围护结构总热阻，远远小于沈阳地区冬季低限热阻值；舍内水汽、ＣＯ２、ＮＨ３、灰尘、下落细菌数等超标；冬季影响产蛋率达９％～１５７％，增加耗料３６７％～４０％；父母代蛋种鸡场全年减产２１％～２７％。集约化猪鸡场无专用排污净化设施，污水中的氨态氮（ＨＮ３－Ｎ）、悬浮物（ＳＳ）、化学耗氧量（ＣＯＤｃｒ）、５日生化需氧量（ＢＯＤ５）都严重超标，舍外大气、饮水受到一定污染。揭示我国集约化猪鸡场环境改造的必要性

Investigation on the Environmental Condition of Intensive Pig and Chichen Farms in Shenyang

Investigation and testing have showed that the thermal insulating layers of intensive pig and chicken houses in Shenyang are not standard. The heat protection ability of outer insulating layers of the animal houses were lower than that of the local value in winter in Shenyang. In addition, the vapor, CO 2, NH 3, dust and fallen bacteria et al in the animal houses were over the standard, which decreased the laying rate by 9%-15.7% and feed consumption by 36.7%-40.0%. And the parent stock chicken farm had reduced laying rate by 21%-27% a year. Due to there is no special sewage treatment plant for these animal houses, the ammonia, suspended substance and COD and BOD 5 were more than safe level of criteria. Meanwhile the atmosphere and drinking water outside the animal house has been polluted in some degree. These indicated that it was necessary to improve the environmental situation of intensive pig and chicken farm in the northeast of China.