Abstract: The objective of this experiment was to understand the pollution status of livestock and poultry breeding in Hunan province, to provide theoretical basis for its prevention and control. According to the excretion parameter of animal and Hunan rural statistical yearbook of 2011, to estimate the production amount of livestock and poultry manure in the year 2011 in Hunan province. The results showed that the amount of livestock and poultry manure in the year 2011 in Hunan province was 6680.29 million tons, the amount of COD, BOD, NH₃-N, TP, TN were 327.49 million tons, 302.39 million tons, 26.04 million tons, 30.78 million tons, 64.45 million tons, respectively. The amount of zinc, copper, chromium, lead, cadmium, nickel, arsenic, mercury were 3802.54 tons, 2772.43 tons, 335.67 tons, 265.06 tons, 51.11 tons, 240.60 tons, 47.63 tons, 2.16 tons, respectively. The amount of marsh gas was about 572088 million cubic meters from the animal manure of 2011. The amount of livestock and poultry manure was huge quantity, the pollution was serious, the reduction, harmlessness, resources were the measures and methods of animal manure.

Key words: Hunan province; animal manure; excretion parameter; estimate