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Optimization feeding method for culturing shrimp

A technology for shrimp and growing period, applied in fish farming, climate change adaptation, animal feed, etc., can solve the problems of unreasonable utilization rate of ingested feed, surplus nutrients, and waste of feed, so as to avoid waste of feed resources. , the effect of promoting growth and improving feed conversion efficiency

Inactive Publication Date: 2007-10-17
OCEAN UNIV OF CHINA
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AI Technical Summary

Problems solved by technology

In the case of overproviding a variety of feed (bait) materials to prawns at the same time, some or some nutrients will appear surplus, and the utilization rate of the ingested feed is not very reasonable, especially in the practice of culturing prawns in ponds. Therefore, if you feed a variety of feed (bait) materials, the advantages of more balanced nutrition will be brought into play, and the growth of prawns will also be faster, but the waste of feed (bait) is inevitable

Method used

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Embodiment

[0008] From August 2nd to September 15th, 2005, the experiment lasted for 45 days. The experiment site is the Aquaculture Ecology Laboratory of Ocean University of China. Litopenaeus vannamei used in the experiment was purchased from Jiaozhou Shrimp Factory in Qingdao. Before the start of the experiment, the prawns were domesticated for 10 days under the condition of indoor salinity of 30ppt. During the domestication period, twice a day (at 6:00 and 18:00) a sufficient amount of commercial artificial compound feed (which contained 43.39 ± 0.22% (weight percent, the same below) crude protein, 9.74±0.30% fat, 9.91±0.01% ash, 8.41±0.06% moisture, and others are carbohydrates).

[0009] The prawns are cultured in glass tanks (45×30×30 cm, the water volume is 35 L), and 4 prawns are cultured in each glass tank, and the tank is covered with a nylon mesh cover to prevent the shrimp from jumping out. The experimental seawater comes from the sea area near Qingdao. After sand filtrati...

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Abstract

An optimization feeding method for shrimp culture includes feeding according to the current feeding time and mode, its characteristcs are during the maturation period of shrimp to adopt natural animal baits and compound feeds by 2-4 :1 frequency or weight ratio to feed in turn; the said natural animal baits are sleeve-fishs, clamworms, minitype shrimps and crabs or bivalve mollusks which can be fed naturally by shrimp; the said compound feeds are juvenile shrimp or adult shrimp containing protein over 40 percent. To adopt this feeding mode of the present invention can promote shrimp growth, improve feed conversion efficiency and avoid feed resource waste caused by selectivity.

Description

technical field [0001] The invention relates to a feeding technology for prawn cultivation, in particular to an optimized feeding method in prawn cultivation. Background technique [0002] In the long-term evolution process, due to the variability of the natural environment, the diversity of available bait species and the adaptation to starvation pressure, the penaeid shrimp has formed an omnivorous living habit. It is generally believed that the food of prawns is basically divided into three categories: microbial debris, plants and animals. However, many research results have shown that from the perspective of nutrient sources, the proportion of stomach contents and the activity of digestive enzymes, the feeding habits of prawns are all biased towards carnivorous. In the present prawn culture, basically all feed a single feeding (bait) material, which is very easy to cause the lack of certain nutrients. The aforementioned omnivorous behavior of prawns clearly has certain ...

Claims

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Application Information

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IPC IPC(8): A01K61/00A23K1/18A23K50/80
CPCY02A40/81
Inventor 董双林郑振华吴立新
Owner OCEAN UNIV OF CHINA
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