Affiliation:
1. Sichuan Animal Science Academy, Chengdu 610066, China
2. Animal Breeding and Genetics Key Laboratory of Sichuan Province, Chengdu 610066, China
3. College of Animal Science and Technology, Southwest University, Chongqin 400715, China
4. College of Architecture and Environment, Sichuan University, Chengdu 610017, China
Abstract
Air source heat pump (ASHP) is a good new energy heating system. To explore the effect of ASHP on the production of yellow-feather broiler chicks, 31,500 one-day-old yellow broiler chicks were divided into three chicken houses with the same building structure but different heating methods (ASHP, CCF, CB). During the experiment, the parameters of heating time, temperature uniformity, gas concentration, weight gain, survival rate and production benefit were analyzed and evaluated. Results showed that the difference in NH3, CO2, and H2S concentrations was not significant in all test groups (p > 0.05). Only group II detected the CO gas. In winter and spring, the weight of the chickens in group II were weighed the least at 35 days of age, and were significantly different from the ASHP and CB system (p < 0.05). There was no significant difference in body weight between ASHP and CB (p > 0.05). Group II had the lowest evenness and survival, the slowest warming, the worst uniformity of temperature distribution, and the highest cost. It is concluded that the ASHP was very environmentally friendly and has the highest economy, which is worth promoting and using.
Funder
Sichuan Province key research and development plan
Sichuan Provincial financial operation special project
China Agriculture Research System
Subject
Process Chemistry and Technology,Chemical Engineering (miscellaneous),Bioengineering