|
Abstract In the goose house with water curtain cooling system, nine measuring points of 0.6, 1.2 and 1.8 m off the ground at the fan end, the water curtain end and the central gate were selected to measure the effects on temperature, humidity, CO2, dust, number of total bacteria and Escherichia coli to study the influence of water curtain cooling system on the environmental parameters in goose house. The results showed that when the water curtain system opened, the overall temperature of the environment below 30 ℃, the humidity was between 85% and 90%, CO2 was significantly higher than that at closing (P<0.05) , the dust was obviously lower than that when it closed. In different areas, the variation trend of the number of total bacteria and E. Coli in the goose house was similar, both of which showed that when the water curtain was opened, the number of bacteria near the water curtain end was low and significantly lower than that at closing (P<0.05) . At 0.6 and 1.2 m, when the water curtain was closed, the total number of bacteria and E. Coli was higher than when it opened, and the total bacterial count was significantly different at 1.2 m (P<0.05) . The results showed that the water curtain cooling system could effectively control the environmental parameters in the goose house.
|
|
Received: 18 September 2020
|
|
|
|
2019, Vol. 32 
