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Method for feeding high-survival-rate and high-growth-rate Hulong hybridized groupers in pond

A survival rate and growth rate technology, applied in botany equipment and methods, climate change adaptation, horticulture, etc., can solve the problems of survival rate, growth speed difference, and uneven seedling results, etc., to achieve favorable growth and crude protein content The effect of improving and promoting the growth of fry and rotifers

Active Publication Date: 2018-11-09
HAINAN CHENHAI AQUATIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as far as the prior art is concerned, different seedling raising methods often have large differences in survival rate and growth rate. At present, there is no generally accepted optimal seedling raising scheme, and the seedling raising results are uneven.

Method used

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  • Method for feeding high-survival-rate and high-growth-rate Hulong hybridized groupers in pond

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A method for raising tiger-long hybrid spotted pond seedlings with high survival rate and growth rate includes the following steps:

[0033] 1) Selection of nursery ponds: A pond with an area of ​​3 mu and a water depth of 2.0m is selected as the nursery pond, and a circle of aerated stones is set at a distance of 2m from the edge of the nursery pond, and the distance between adjacent aerated stones is 2m.

[0034] 2) Water quality control: Before the newly hatched larvae are placed, add 0.02mg / L of complex bacteria (photosynthetic bacteria: yeast: nitrifying bacteria = 3:1:1) to the pool, every other day between 5-15 days Add 0.02mg / L of complex bacteria + 0.03mg / L of Schizochytrium, 16-24 days later, add 0.02mg / L of complex bacteria + 0.015mg / L of Pseudochlorococcum + 2μg / L taurine+ 1μg / L citric acid, add 0.02mg / L of compound bacteria+0.05mg / L of Chlorella+2μg / L salicylic acid every day for 25-30d, add 0.3μg / L of aluminum iron chloride on the 25th day; 0-5 days, the pH is...

Embodiment 2

[0046] A method for raising tiger-long hybrid spotted pond seedlings with high survival rate and growth rate includes the following steps:

[0047] 1) Selection of nursery ponds: A pond with an area of ​​2 mu and a water depth of 1.5m is selected as the nursery pond. A circle of aerated rocks is set 1.5m away from the edge of the seedling pond, and the distance between adjacent aerated rocks is 2m.

[0048] 2) Water quality control: Before the newly hatched larvae are placed, add 0.01mg / L of complex bacteria (photosynthetic bacteria: yeast: nitrifying bacteria = 3:1:1) to the pool, every other day between 5-15 days Add 0.01mg / L of compound bacteria + 0.02mg / L of Schizochytrium, and add 0.01mg / L of compound bacteria + 0.01mg / L of Pseudochlorococcum + 0.01mg / L of Pseudochloropsis +1μg / L taurine+ every day after 16-24 days 1μg / L citric acid, add 0.01mg / L of complex bacteria+0.05mg / L of chlorella + 1μg / L salicylic acid every day after 25-30d, add 0.1μg / L of aluminum iron chloride on th...

Embodiment 3

[0061] A method for raising tiger-long hybrid spotted pond seedlings with high survival rate and growth rate includes the following steps:

[0062] 1) Selection of nursery ponds: A pond with an area of ​​2 mu and a water depth of 2.5m is selected as the nursery pond, and a circle of aerated rocks is set 2m away from the edge of the seedling pond, and the distance between adjacent aerated rocks is 3m.

[0063] 2) Water quality control: Before the newly hatched larvae are placed, add 0.02mg / L of complex bacteria (photosynthetic bacteria: yeast: nitrifying bacteria = 2:1:1) to the pool, every other day between 5-15 days Add 0.03mg / L of complex bacteria+0.05mg / L of Schizochytrium, add 0.03mg / L of complex bacteria+0.015mg / L of Pseudochlorococcum+0.015mg / L of Taurine every day after 16-24 days 2μg / L citric acid, add 0.03mg / L of complex bacteria + 0.1mg / L of Chlorella + 2μg / L salicylic acid every day after 25-30d, add 0.3μg / L of aluminum iron chloride on the 25th day; Stop after 30 days;...

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Abstract

The invention provides a method for feeding high-survival-rate and high-growth-rate Hulong hybridized groupers in a pond. The method includes fry breeding pond selection, water quality control, fry distribution, light adjustment, bait feeding and other steps. The unique comprehensive water quality control technology is adopted, and by adopting suitable biological bait, suitable ratios and precisefeeding time sequences, high survival rate and high growth rate of bred fry are achieved. By adopting the method, 30 days after fry breeding, the survival rate of the Hulong hybridized groupers is upto 99.93%, the fatness is up to 5.45 g / cm3, the crude protein content is up to 50.13%, and the crude fat content is up to 50.13%; the survival rate of normal groupers is 75.82-81.88%, the fatness is2.90-3.52g / cm3, the crude protein content is 42.49%-45.90% and the crude fat content is 6.52%-7.63%. Compared with the normal groupers, the survival rate, fatness, crude protein content and crude fatcontent of the Hulong hybridized groupers are obviously improved.

Description

Technical field [0001] The invention relates to the technical field of aquaculture, in particular to a method for raising seedlings in a pond of a new species of tiger-long hybrid spot. Background technique [0002] Hulong hybrids are F1 generations obtained by crossing the females of the brown-spotted grouper as the female parent and the males of the saddle-strap grouper as the male parent, which were bred in two populations. As the female parent, brown-spotted grouper is less difficult to artificially propagate, and its survival rate is high, but its growth rate is slow and the breeding cycle is long, which leads to unsatisfactory breeding benefits. As the male parent, grouper grouper is the largest and fastest growing species in the grouper family, but it is difficult to breed broodstock and seedlings, and the survival rate of seedlings is very low. The dragon-tiger hybrid spot combines the advantages of the male parent and the female parent. Its main characteristics are: fir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01K61/10A01K63/04A23K50/80A23K10/20A01G33/00
CPCA01G33/00A01K61/10A01K63/04A23K10/20A23K50/80Y02A40/81
Inventor 蔡春有刘晓春蔡有森蔡四川蔡建顺蔡惠明蔡金泉
Owner HAINAN CHENHAI AQUATIC CO LTD
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