Discussion on the technology of using whole biological feed to cultivate shrimp
2018-06-18 22:01:51
The whole process of using biological bait to culture shrimp has the advantages of low investment, no pollution, fast growth of shrimp, no drug residue, etc. This article mainly discusses the use of good biological feed to implement a healthy shrimp farming mode.
1. In the basic bait shrimp culture pond, natural feed, artificial fertilization, transplanted food organisms and all the organic debris used by the shrimp form the basic bait of the shrimp and can be used directly by the shrimp, which is decisive for the development of the shrimp. They include algae, zooplankton and benthic animals. When prawns are in the prawns stage, their growth and aquaculture survival rates are relatively related to plankton and benthic organisms in the ponds. However, under normal circumstances, the prawns stage time is short, and almost all the aquaculture ponds can satisfy prawns. The demand for bait to transition to juvenile shrimp. With the growth of shrimp, its food intake for plankton is getting smaller and smaller, and the feed for benthic animals is increasing day by day. Therefore, whether the basic food of a culture pond is rich or not is mainly due to the abundance of benthic animals. degree.
1. Methods and procedures for cultivating basic food organisms Based on years of observation of culture ponds, the authors found that choosing an appropriate water intake time is an important task and should be prepared for entering the pool in early spring. Because this is a positive time for the silkworm laying season, a large number of eggs and larvae in the seawater enter the water and multiply in the pond, forming a peak in the number of individuals. After feeding the shrimps, the shrimps are affected by the feeding and environment of the shrimps. , Sandworm burrowing can not be used, therefore, to change the diversity of basic food organisms, amphipoda, quail prawn larvae become a good food. On the one hand, the basic food organisms are cultured by water, and on the other hand, single-cell algae are cultivated by fertilization, and the conditional nursery is better for inoculation of algae. In this way, the biomass in the pond reaches its highest peak, which is exactly Best time.
2. With the increase in the number of individual shrimps, the number of bait organisms in the pond gradually decreases. Therefore, some food organisms must be transplanted into the pond to meet the growing feeding needs of shrimp. Transplantation of amphetamines is a feasible measure. Amphipods have a high protein content and an essential amino acid content. They are benthic habits, have weak activity, shallow latent mud, strong adaptability, and high reproduction speed. They are very easy to feed, so they should be in April. The amphipoda was transplanted before transplanting, causing it to multiply in ponds.
In addition, some low-value shellfish are also good food organisms for shrimp, such as blue cockroaches, short cockroaches, and duck-billed cockroaches, and are easily captured. After years of practice, the use of low-value shellfish as shrimp bait has resulted in rapid growth of the shrimp without polluting the water (unfed apes can continue to grow in the water), but should be uniform when feeding the alfalfa. Accumulation of shrimp is difficult to feed, and the appropriate timing of feeding the aphids is generally available only after the shrimp reaches a body length of 6 cm.
Second, discuss
1. At present, shrimp farming is generally bred for only 2 months to 3 months due to virus infestation, and some can only grow for 1 month, resulting in low breeding efficiency. The entire process utilizes biological feed to raise shrimp. Because it is not fed and the pond is lightly polluted, excellent shrimp food organisms make the shrimp strong, and can also reduce the occurrence of diseases, even without disease. The cost of breeding is low, and generally there will be better returns.
2. Reasonably put seedlings. According to the conditions of the pond, the amount of food organisms and the amount of transplanted oysters, the amount of grazing is determined so that the food organisms in the pond that can be used directly by the prawn have a longer duration and can increase the yield. Otherwise, there are many shrimps and all the basic food organisms are ingested in a short period of time, and the basic amount of bait-feeding organisms is lost. As a result, the food organisms in the pond are wasted, and the yield is not harvested or there is a certain yield. However, the shrimp population is small and the efficiency is poor.
3. How to make shrimp culture ponds to maximize the production of food organisms that can be used directly by shrimps is a problem that must be solved in the use of ecosystems to cultivate shrimp. The shrimp culture period is generally only 3 months to 4 months, and the rest of the ponds are idle. And these times are fully available to multiply food creatures.
Hou Hongjian Wang Shidan Su Haiyan Yan Jianyong Fishery Technology Extension Station, Wendeng City, Shandong Province 264400
1. In the basic bait shrimp culture pond, natural feed, artificial fertilization, transplanted food organisms and all the organic debris used by the shrimp form the basic bait of the shrimp and can be used directly by the shrimp, which is decisive for the development of the shrimp. They include algae, zooplankton and benthic animals. When prawns are in the prawns stage, their growth and aquaculture survival rates are relatively related to plankton and benthic organisms in the ponds. However, under normal circumstances, the prawns stage time is short, and almost all the aquaculture ponds can satisfy prawns. The demand for bait to transition to juvenile shrimp. With the growth of shrimp, its food intake for plankton is getting smaller and smaller, and the feed for benthic animals is increasing day by day. Therefore, whether the basic food of a culture pond is rich or not is mainly due to the abundance of benthic animals. degree.
1. Methods and procedures for cultivating basic food organisms Based on years of observation of culture ponds, the authors found that choosing an appropriate water intake time is an important task and should be prepared for entering the pool in early spring. Because this is a positive time for the silkworm laying season, a large number of eggs and larvae in the seawater enter the water and multiply in the pond, forming a peak in the number of individuals. After feeding the shrimps, the shrimps are affected by the feeding and environment of the shrimps. , Sandworm burrowing can not be used, therefore, to change the diversity of basic food organisms, amphipoda, quail prawn larvae become a good food. On the one hand, the basic food organisms are cultured by water, and on the other hand, single-cell algae are cultivated by fertilization, and the conditional nursery is better for inoculation of algae. In this way, the biomass in the pond reaches its highest peak, which is exactly Best time.
2. With the increase in the number of individual shrimps, the number of bait organisms in the pond gradually decreases. Therefore, some food organisms must be transplanted into the pond to meet the growing feeding needs of shrimp. Transplantation of amphetamines is a feasible measure. Amphipods have a high protein content and an essential amino acid content. They are benthic habits, have weak activity, shallow latent mud, strong adaptability, and high reproduction speed. They are very easy to feed, so they should be in April. The amphipoda was transplanted before transplanting, causing it to multiply in ponds.
In addition, some low-value shellfish are also good food organisms for shrimp, such as blue cockroaches, short cockroaches, and duck-billed cockroaches, and are easily captured. After years of practice, the use of low-value shellfish as shrimp bait has resulted in rapid growth of the shrimp without polluting the water (unfed apes can continue to grow in the water), but should be uniform when feeding the alfalfa. Accumulation of shrimp is difficult to feed, and the appropriate timing of feeding the aphids is generally available only after the shrimp reaches a body length of 6 cm.
Second, discuss
1. At present, shrimp farming is generally bred for only 2 months to 3 months due to virus infestation, and some can only grow for 1 month, resulting in low breeding efficiency. The entire process utilizes biological feed to raise shrimp. Because it is not fed and the pond is lightly polluted, excellent shrimp food organisms make the shrimp strong, and can also reduce the occurrence of diseases, even without disease. The cost of breeding is low, and generally there will be better returns.
2. Reasonably put seedlings. According to the conditions of the pond, the amount of food organisms and the amount of transplanted oysters, the amount of grazing is determined so that the food organisms in the pond that can be used directly by the prawn have a longer duration and can increase the yield. Otherwise, there are many shrimps and all the basic food organisms are ingested in a short period of time, and the basic amount of bait-feeding organisms is lost. As a result, the food organisms in the pond are wasted, and the yield is not harvested or there is a certain yield. However, the shrimp population is small and the efficiency is poor.
3. How to make shrimp culture ponds to maximize the production of food organisms that can be used directly by shrimps is a problem that must be solved in the use of ecosystems to cultivate shrimp. The shrimp culture period is generally only 3 months to 4 months, and the rest of the ponds are idle. And these times are fully available to multiply food creatures.
Hou Hongjian Wang Shidan Su Haiyan Yan Jianyong Fishery Technology Extension Station, Wendeng City, Shandong Province 264400
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