Study On The Appearance And Behavior Variation Of The F₁ Hybrids Between Wild Japanese Quails And Domestic Quails

Through Hybridization experiment between wild Japanese quails (Coturnix japonica) and domestic quails, the traits of F₁ hybrids (wild male quails×domestic female quails) including growth, reproduction, body size, morphology, caged adaptability and living habits were observed and studied. Its aim is to reveal the possibility of resuming the valid scales of wild Japanese quails through taming F₁ hybrids and provide new data for raising and breeding F₁ generation in laboratory. The results are as follows:1. There are no obvious differences between different sex of F₁ hybrids in the speed of growth. The relative growth rate is above 60%, which is the highest before the age of 14 days. And the growth rate is becoming reduced with the increase of age. But around 49 days, it is on the rising: male, 17.83%; female, 17.50%. The absolute growth intensity also rises simultaneity: male, 3.51g/d; female, 3.49g/d.2. F₁ generation can co-mate freely and produce F2 generation, which indicates that there are no post-zygotic reproduction isolation and no obstacle for gene communication between the two quail populations.3. F₁ generation and domestic quails share similarities in size, color of feather, season of feather changing and egg-laying. Still, they preserve some characteristics of wild Japanese quails, for instance, they are timid, sensitive to outer stimulus (light, sound,...