| Recently the survival condition of giant spiny-frogs was deteriorated and the phenomenon of indiscriminate hunting was serious. It is very important to develop resource conservation and breeding of giant spiny-frogs for the wise use of resources. The abundant Forest resources and favorable water quality in North of Fujian were suitable for the survival and growth of Giant spiny-frogs. The variety of this species suitable for artificial breeding should be selected to help enlarging the frog breeding in North of Fujian and protecting local frog resources. Local farmers can take advantage of environment resources and develop ecological construction to increase the income level.This research compared and analyzed the rate of laying eggs, incubation rate, metamorphism rate and the growth of tadpole and young frog of giant spiny-frogs in nature condition in North of Fujian between local frogs and introduction frogs, to enlarge the frog breeding and protected local frog resources.The results indicated that the introduction frog had been adaptive to the breeding environmental condition which was artificial simulated to nature condition of North of Fujian after domestication of several generations. The times of laying eggs and the total amount of eggs of introduction frogs were higher that local wild giant spiny-frogs by difference analysis from T-test. (the difference is Significant, P<0.05)At the year of introduction, the incubation rate of introduction frog ovum after domestication of several generations was higher than local wild giant spiny-frogs, and the highest incubation rate was 98% and the average rate was 95.3%.At the second year of introduction, the incubation rate of introduction frog ovum after domestication of several generations was higher than local wild giant spiny-frogs significantly, and the highest incubation rate was 99.21% and the average rate was 96.54%. This showed that the introduction frogs were adaptive the environment at second year with higher ovum incubation rate than the first year.The results from difference analysis of tadpoles survival rate between introduction frogs and local frogs indicated that the survival rate of introduction tadpoles were higher than local tadpoles. The growth of introduction young frogs was advantage to local young frogs and well development.The times of laying eggs and the total eggs of first subgeneration of introduction frogs were higher than subgeneration of local frogs. The fertilized rate and incubation rate of eggs laid by introduction subgeneration were also higher that local subgeneration. The total times of laying eggs, and egg amount of one-year subgeneration frogs were small, and the highest incubation rate was 48.26%, so one-year individuals were not suitable to be selected as breeding frogs.The results indicated that the tadpole survival rate of second subgeneration of introduction was higher than local second subgeneration. The amount of laying eggs and fertilized rate of one-year frogs were lower that second-year frog, and the adaptive ability of tadpoles was bad. The young of local second subgeneration had the kind of growth quilibrium, and 5 frogs were dyed in total 20 individuals, and the biggest one is 178g weight, and the smallest one is 45g. The appearance of climbing and fleeing may be serious, and it is easy to be detested. The growth of young introduction second subgeneration is quilibrium, and had no appearance of climbing and fleeing, one of 20 frogs died, and the biggest one is 169g weight, and the smallest one is 92g.From above discussion, by comparing the rate of laying eggs, incubation rate, metamorphism rate and the growth of tadpole and young frog of giant spiny-frogs in nature condition in North of Fujian between local frogs and introduction frogs, this research found the frogs suitable for breeding in large scope. The giant spiny-frogs from other places were introduced and breed to achieve the purpose of resource conservation by the use and optimization of outside breeding methods...
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