Through application of improved BP algorithm,a three-layer feedforward network is built in order to solve the missed data problem of harmful gas concentration caused by sensor fault in livestock breeding farms.

With the development of production scale and intension of animal husbandry industry,more and more people are concerning the damage of malodor contamination from livestock and poultry farms.

This article elaborates the impact of droppings in livestock and poultry farms on rural ecological environment and analyzes the integrated measures of droppings treatment.

Pollution of poultry and livestock farming in Nanhai District was analyzed.

The present situation of animal husbandry and the pollution it brings about in Shanghai are being investigated by the authors.

Design of A control and information collecting system for livestock breeding farms;

In order to understand the pollution of livestock and poultry breeding,the concentrated livestock breeding farms in Chaoyang, Fuxin,Panjin,Fushun in Liaoning province were investigated.

The article expatiates comprehensive utilization approach of livestock's dejecta and analyses ponderance of rural environmental pollution resulted from livestock breeding trade.

Pollution becomes very serious with the enlarge of livestock and poultry breeding.

The livestock and poultry breeding has become one of backbone industries for agricultural economy.

This situation promoted the development of livestock and poultry breeding in Baotou city, especially the rapid development of the scale livestock and poultry breeding.