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Controlled-feeding/heavy-feeding alternate feeding aquatic product fish culture method

A technology of fish breeding and breeding method, which is applied in the field of aquaculture fish farming where food restriction/satisfaction is alternately fed, and can solve problems such as the weight of the fish cannot keep up with the continuous feeding, the growth rate is not as good as the normal level, and the growth finger fish cannot be compensated. , to achieve the effect of reducing the cost of breeding, reducing the amount of feed input, and reducing the waste of residual bait

Inactive Publication Date: 2016-05-11
INST OF AQUATIC LIFE ACAD SINICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 4) Unable to compensate for growth means that when the fish resumes growth, not only the weight cannot keep up with the fish that has been continuously fed, but even the growth rate is not as good as the normal level
[0011] Due to the large food intake of sturgeon, the bait feeding amount of juvenile fish is about 5% of the fish body weight, and it is fed 6 to 8 times a day (Feng Guangpeng et al., 2004). Such a large amount of bait feeding is a heavy burden for the breeding water In the actual breeding, a large amount of bait may be left, which not only causes the waste of feed and increases the cost of breeding, but also the aggravation of water pollution poses a threat to the survival of the sturgeon, which has higher requirements for water quality.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] A method of breeding sturgeon with restricted food / full food alternately fed:

[0042] Two groups were designed for the growth test, both of which used the above-mentioned test feed.

[0043] In the test group, food was restricted for 2 days (at the level of 2% of body weight), and fed alternately for 2 days with full food.

[0044] The control group was fed with full food (overfeeding, the residual bait was removed after 1 hour, dried at 60°C and weighed to calculate food intake).

[0045] Three experiments were performed in parallel for each experimental treatment group, and the experimental period was 60 days. Weigh every 20 days to adjust the feeding amount.

[0046] Growth test: The growth test was carried out in a circulating water system containing 6 glass fiber tanks (with a water volume of 120 L), and the water inlet flow rate of each tank was 5 L / min. During the test period, through aeration, the dissolved oxygen in the water was maintained at 6mg / L, the wa...

Embodiment 2

[0052] A method of breeding sturgeon with restricted food / full food alternately fed:

[0053] The growth test was designed into two groups, both of which used the above-mentioned test feed.

[0054] The experimental group adopted 5-day food restriction (at the level of 2% of body weight), and 5-day full food for alternate feeding.

[0055] The control group was fed with full food (overfeeding, the residual bait was removed after 1 hour, dried at 60°C and weighed to calculate food intake).

[0056] Three experiments were performed in parallel in each group, and the experiment period was 60 days. Weigh every 20 days to adjust the feeding amount.

[0057] Growth test: The growth test was carried out in a circulating water system containing 6 glass fiber tanks (with a water volume of 120 L), and the water inlet flow rate of each tank was 5 L / min. During the test period, through aeration, the dissolved oxygen in the water was maintained at 6mg / L, the water temperature was mainta...

Embodiment 3

[0064] A method of breeding sturgeon with restricted food / full food alternately fed:

[0065] Two groups were designed for the growth test, both of which used the above-mentioned test feed.

[0066] The test group adopts 10 days of food restriction (at the level of 2% of body weight), and 10 days of full food for alternate feeding,

[0067] The control group was fed with full food (overfeeding, the residual bait was removed after 1 hour, dried at 60°C and weighed to calculate food intake).

[0068] Three experiments in each group were performed in parallel, and the experiment period was 60 days, with 20 days as a stage of weighing to adjust the feeding amount.

[0069] Growth test: The growth test was carried out in a circulating water system containing 6 glass fiber tanks (with a water volume of 120 L), and the water inlet flow rate of each tank was 5 L / min. During the test period, through aeration, the dissolved oxygen in the water was maintained at 6mg / L, the water temper...

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Abstract

The invention relates to a controlled-feeding / heavy-feeding alternate feeding aquatic product fish culture method. According to the method, a controlled-feeding / heavy-feeding alternate feeding mode is provided by using the principle of compensatory growth, so that the feed utilization efficiency of fishes can be increased, the wasting of feedstuff and the emission of nitrogen and phosphorus caused by remnant feedstuff are reduced, the environmental pollution is lightened, and the culture cost is reduced. By a controlled-feeding / heavy-feeding alternate feeding strategy, the feed utilization efficiency of fish bodies of sturgeons or Leiocassis longirostris can be increased, and the emission of nitrogen is lowered; and the content of protein and fat in the fish bodies is not affected, the fat accumulation of internal organs can be lowered, and the quality is improved.

Description

technical field [0001] The invention relates to the technical field of aquaculture technology and aquatic product compound feed, and more specifically relates to a method for aquaculture fish breeding in which restricted food and full food are alternately fed. Background technique [0002] In nature, due to seasonal changes, drastic changes in the environment, or uneven distribution of organisms, wild fish generally suffer from periodic starvation or nutritional deficiencies. As a physiological and ecological adaptation, wild fish can develop the ability to tolerate food shortage or even starvation stress from the aspects of physiology, biochemistry and behavior by reducing the basic metabolic level and consuming the nutrients stored in their own tissues. If sufficient food is fed, normal physiological functions may recover, and growth may also appear to compensate, that is, by reducing the need to maintain a basic level of survival, increasing energy utilization efficiency,...

Claims

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Application Information

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IPC IPC(8): A01K61/00A23K1/18A23K1/175A01K61/10
CPCY02A40/81
Inventor 朱晓鸣黄莹解绶启韩冬杨云霞聂光汉金俊琰
Owner INST OF AQUATIC LIFE ACAD SINICA
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