| Aequidens rivulatus has a good ornamental value, since the twentieth century came to China, by the majority of tropical ornamental fish lovers favorite. In addition, it also has high food value, and therefore has a high breeding future.But now in the study of Chinese mainland Aequidens rivulatus is relatively small. especially in terms of breeding and breeding patterns, Aequidens rivulatus breeding rocess, lack of guidance theory of optimal ecological conditions needed. And in exploring he model of constructive new results are not yet been reported.The study was chosen to Aequidens rivulatus for the study, mainly studied the cological factors (culture water temperature, hardness, pH, light conditions) on the Aequidens sivuatus fertilized embryos. We also explores the screening juvenile weaning food, the impact of stocking density on the growth of juvenile fish, as well as hot water ntensive farming model exploratory experiments.At the beginning of this study, the researchers did 4 times experiments for the /ariable of the temperature, water’s hardness, pH and light conditions. In each set of xperiments, the researchers set up a group of variables gradient, and keep the other cological factors for consistent. Researchers placed 50 fertilized eggs in each dish, and hen placed 3 dishes in each aquarium, wherein two culture dishes used to calculate the hatchability,embryonic development time and survival rateof Aequidens rivulatus fertilized eggs, and using a microscope to observe the process of another dish of Aequidens rivulatus embryos. Experimenter repeated for each set of experiments done hree times, and then to the dimensions of the data analysis and processing, has been the mpact of specific ecological factors on Aequidens rivulatus embryonic development md appropriate environment for the fish embryos. Specific test results as follows:The results of the ecological factors affecting Aequidens rivulatus embryo levelopment are:optimum temperature Aequidens rivulatus embryos was 28℃ hardness range for optimum water quality 8°HG～11°HG, the optimum pH range of 6.5～7.5. Finally, there was no significant difference in the influence of illumination conditions on embryonic development time (P>0.05)After obtaining results suitable breeding Aequidens rivulatus’s ecological factors the researchers continue to Aequidens rivulatus’s fries cultivation condition to do the experiment.The experiment respectively explored initially the bait and free range of influence on the density of fish breeding. It is concluded that the appropriate in itial bait combination scheme and the density of livestock. Detailed experimental results are as follows:The impaction of Aequidens rivulatus bait filtering scheme is:the rotifers, egg yolk, feed particles, rotifers + feed particles.The researchers concluded that the result is that, the group of rotifers + particles had the highest survival rate and the average length effect is best. In the larval stage,the suitable density of fish farming is from 120 to 240 tail per square meter.Finally the researchers did a exploratory experiment on Aequidens rivulatus breeding mode. Experimenters made 8 months of intensive farming. The result is:the experimenter started dropping seedling 6300 tail, to the final harvest time and 5535 tail, the survival rate reached 87.86%, and salvage out of the rain the rain in the average length of 17.12cm, the average weight of 227.3g. At last, the author do some analysis and processing about the data,and got the model’s advantage and disadvantage. |
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