Study on Technology of Tunnel Incubation

Tunnel incubation has a unique way of air flow, which is different from that of traditional incubation. The air flow in the tunnel incubator takes fresh air having sufficient oxygen to old embryos of each stage. The flow also carries heat released from old embryos into developing embryos of early stage. The tunnel incubator always maintains ideal temperature designed, needs less power and has larger capacity. Therefore, it's very efficient and economical. The layout of incubation hall and operation technologies were discussed. 3.2 millions hatchedeggs of 7 flocks of AVIAN broiler breeders were incubated. Excellent hatching results have been achieved. The mean hatchabilities of all eggs and fertilizedeggs were 85.67% and 94.75%, respectively.