Bullfrogs generally need to be cultured for about 8-9 months before they can be released. However, due to different factors such as breedi
Bullfrogs generally need to be cultured for about 8-9 months before they can be released. However, due to different factors such as breeding technology, the specific release time needs to be determined according to the actual situation. In order to promote the release of bullfrogs as soon as possible, it is necessary to provide them with adequate feed. The feed formula is as follows: soybean meal 40%, rapeseed cake 5%, fish meal 10%, blood meal 5%, wheat bran 29.7%, alfalfa meal 10%, wine and aquatic multivitamin 0. 1%, wine mold and various minerals 0. 1%.
First, the bullfrog will be released in a few months.
1, slaughter time
Generally, it takes about 8-9 months for bullfrogs to be released, but the specific time for bullfrogs to be released depends on the actual situation because of different breeding techniques and other factors.
2. How to kill bullfrogs as soon as possible?
(1) feed formula
① bean cake 40%, rapeseed cake 5%, fish meal 10%, blood meal 5%, wheat bran 29.7%, alfalfa meal 10%, vino aquatic product multidimensional 0. 1%, vino mycorrhizal mine 0. 1%, vino compound.
② Miscellaneous fish 45%, peanut cake 15%, wheat bran 7.7%, bean cake 9%, meat and bone meal 7%, wheat flour 5%, shrimp meal 9%, inorganic salt 2%, vino aquatic product multidimensional 0. 1%, vino mycorrhizal mine 0. 1%, vino mycorrhizal mine 0.
(2) Cultural environment
① The aquaculture water should be clean and pollution-free, and the surrounding environment should be quiet to provide a good living environment for bullfrogs.
(2) Patrol the frog pond frequently, and remove and disinfect the diseased and dead frogs in time to prevent the bullfrog from being infected and hindering its growth.
Second, the bullfrog wastewater treatment scheme
1, processing method
(1) Generally, the scheme of pretreatment+anaerobic+aerobic can be used to treat bullfrog breeding wastewater.
(2) Firstly, the aquaculture wastewater is put into the grid pond, so as to intercept macromolecular pollutants, scum and other substances by using the grid, reduce the running load of the subsequent process and reduce the probability of various blockage problems.
(3) After the treatment is completed, it can be put into an adjustment tank to adjust the information of water quality, water quantity, PH and other substances.
2. Harm of aquaculture wastewater
(1) There may be pollutants such as dead frogs in aquaculture wastewater, which will cause serious water pollution if discharged directly into public waters without treatment.
(2) If there is no reasonable bullfrog breeding, it may generally pollute the surrounding water environment and ecological environment, and at the same time, it will also destroy soil, water body, woodland and other places, which is more likely to cause food safety hazards. Therefore, when breeding bullfrogs, it is necessary to treat the breeding wastewater reasonably to avoid various problems.