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Pond poly-culture method for tilapia mossambica and litopenaeus vannamei

A technology of tilapia and vannamei, which is applied in fish farming, climate change adaptation, animal feed, etc., can solve the problems such as the need to further improve the breeding efficiency, the lack of specialized fish and shrimp polyculture feed, and the inconsistent fishing time of fish and shrimp. , to achieve the effect of reducing the chance of shrimp infection, consistent fishing time, and long breeding time

Inactive Publication Date: 2014-03-12
GUANGXI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there is a fish and shrimp polyculture method for tilapia and Litopenaeus vannamei (Chinese patent CN200910041547.5), but the method still lacks special fish and shrimp polyculture feed, the prawn yield is low, and the fish and shrimp fishing time is inconsistent , management difficulty and high cost, breeding efficiency needs to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] From April to September 2012, four tilapia ponds with an area of ​​about 8 mu were selected in a seawater farm in Beihai, Guangxi for a five-month polyculture experiment of tilapia and Litopenaeus vannamei. Tilapia was only cultured in the pond as the control pond, and tilapia and Litopenaeus vannamei were mixed in the two ponds as the experimental pond. Put 100kg of quicklime into the test pond according to the dry pond per mu, inject water to a water depth of 30cm for water disinfection, and when the water temperature rises and stabilizes above 20°C, put 50kg of fermented chicken manure per mu evenly, and inject water to a water depth of 50cm. After 2 weeks of waiting, The water color of the pond is pea green, the transparency is 20cm, and Litopenaeus vannamei seedlings are stocked. 10,000 shrimp seedlings are put into the pond per mu. The daily feeding amount is 10% of the body weight of the shrimp seedlings, and the special tilapia is fed twice a day in the morning a...

Embodiment 2

[0021]From April to September 2013, a freshwater farm in Hepu, Guangxi selected 6 tilapia culture ponds with an area of ​​about 5-9 mu to carry out a five-month polyculture experiment of tilapia and Litopenaeus vannamei. 2 ponds cultured only tilapia as control ponds, and 4 ponds cultured mixed tilapia and Litopenaeus vannamei as experimental ponds. Put 80kg of quicklime into the test pond according to the dry pond per mu, inject water to a water depth of 20cm for water disinfection, and when the water temperature rises and stabilize above 20°C, evenly throw 85kg of fermented chicken manure per mu, inject water to a water depth of 50cm, and after 10 days, the pond The water color is green and the transparency is 25cm. Litopenaeus vannamei seedlings are stocked. 9,000 shrimp seedlings are put into the pond per mu. The daily feeding amount is 20% of the body weight of the shrimp seedlings. Litopenaeus vannamei polyculture feed; after 18 days, the pond was filled with water to a ...

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Abstract

The invention discloses a pond poly-culture method for tilapia mossambica and litopenaeus vannamei. The pond poly-culture method comprises the following steps of: adding quick lime into a dry pond in spring every year, injecting water to carry out water sterilization, adding 50 kg-100 kg of fermented chicken manure into each mu of the pond when the water temperature is stabilized to over 20 DEG C, injecting water until water depth is 40cm-60cm, waiting for 1-2 weeks, adding 8000-12000 litopenaeus vannamei shrimp seeds into each mu of the pond, and feeding special poly-culture feed; injecting water after 15-20 days until water depth is 100cm-120cm, adding 1500-2500 tilapia mossambica fries into each mu of the pond, feeding the poly-culture feed, injecting water after 15-20 days until water depth is 200cm-250cm, oxygenating for 3-7 hours every day, and mixing 20kg-30kg of the quick lime with water to spray for each mu of the pond once to twice every month; catching the tilapia mossambica and litopenaeus vannamei after 120-150 days. According to the pond poly-culture method disclosed by the invention, the special poly-culture feed is fed, prawn quality is high, water pollution is less, management is easy, cost is low and benefits are high.

Description

technical field [0001] The invention belongs to the field of aquaculture, in particular to a method for polyculture of tilapia and Litopenaeus vannamei in ponds. Background technique [0002] Tilapia (Tilapia) ranks third in the international trade of aquatic products and is one of the main farmed fish in my country. The current output has reached more than 1.2 million tons, accounting for about 30% of the world's total, and has become the largest in my country. Litopenaeus vannamei is the main species of prawns cultured in my country, and its output ranks first in the world, and it is also one of the main aquatic product species exported by my country. Both of them are important to my country's aquaculture. significance. The cultivation of tilapia and Litopenaeus vannamei in my country is basically done in ponds, but at present, there are many diseases of Litopenaeus vannamei, the risk of breeding is high, the adult shrimp is small, and the quality is low; the price of cultu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/00A23K1/18A23K1/16
CPCY02A40/81
Inventor 冯健彭淇吴斌王斐陈斌
Owner GUANGXI UNIV
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