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Starter feed for Odontobutis obscura prelarva

An open feed and sand pond snakehead technology, which is applied in the field of fish feed and sand pond larvae open feed, can solve problems such as affecting the survival and growth of sand pond larvae, restricting the development of sand pond snakehead, poor water resistance of feed, etc., so as to enhance the feed. Attractive effect, strong palatability, and the effect of meeting growth needs

Pending Publication Date: 2018-03-23
INST OF AQUATIC LIFE ACAD SINICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under artificial breeding conditions, there are disadvantages such as poor water resistance, poor palatability and unbalanced nutrition.
In addition, there is currently no open-mouthed feed specifically for larvae, which greatly affects the survival and growth of larvae, and limits the further development of artificial breeding and aquaculture of channa

Method used

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  • Starter feed for Odontobutis obscura prelarva
  • Starter feed for Odontobutis obscura prelarva

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0032] 2-1) Feed formula

[0033] % by weight

[0034] fish meal

49

soybean meal

15

Water silkworm powder

15

α-starch

13

Shrimp flavor

1

vitamins

0.5

minerals

0.5

fish oil

6

[0035] The sum of each component is 100%, and the crude protein content in this feed formula is: 45.17%

[0036] 2-2) Preparation method

[0037] The sinking microcapsule feed with a particle size of 150-320 μm is made by adopting a microencapsulation process, and the open feed for the larvae of the sand pond snakehead can be obtained.

Embodiment 3

[0039] 3-1) Feed formula

[0040] % by weight

[0041]

[0042]

[0043] The sum of each component is 100%, and the crude protein content in this feed formula is: 47.1%

[0044] 3-2) Preparation method

[0045] The sinking microcapsule feed with a particle size of 150-320 μm is made by adopting a microencapsulation process, and the open feed for the larvae of the sand pond snakehead can be obtained.

[0046] 2. Breeding effect

[0047] Summary of embodiment 1-3 sand pond snakehead fish fry cultivation effect:

[0048] serial number

Opening rate of Channa chinensis (%)

Survival rate (%)

Feed coefficient

Traditional Breeding Methods

61.52

38.91

1.98

Example 1

91.23

83.13

1.41

Example 2

93.42

84.85

1.38

Example 3

91.87

86.92

1.32

[0049] The feed of the invention has good food-attracting effect and strong palatability, and effectively improves the opening rate of Channa nama; the ...

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PUM

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Abstract

The invention discloses a starter feed for Odontobutis obscura prelarva and relates to a fish feed in the aquaculture field. The feed contains the following ingredients (by weight): 46-51% of fish meal, 12-17% of limnodrilus hoffmeisteri powder, 15-20% of soybean meal, 7-18% of alpha-starch, 1-2% of shrimp flavoring, 0.2-0.6% of vitamin, 0.3-0.9% of mineral matter and 3-6% of fish oil. By a microencapsulation process, a sinkable microcapsule feed is prepared. By adding the shrimp flavoring and limnodrilus hoffmeisteri powder into the feed, attractant effect of the feed is enhanced. The microcapsule feed has strong palatability and good water resistance. Starting rate and survival rate of Odontobutis obscura prelarva are greatly raised, feed wastage is reduced, and water pollution is lowered. The sinkable microcapsule feed is more suitable for feeding habit of Odontobutis obscura so as to guarantee stability of a prelarva nursing pond. The feed formula has a wide source of raw materials, contains balanced nutrients, and meets growth requirements of Odontobutis obscura prelarva. By the use of the feed, labor intensity of artificial breeding of Odontobutis obscura will be reduced, andfurther development of artificial breeding of Odontobutis obscura and breeding industry is promoted.

Description

technical field [0001] The invention relates to a fish feed in the field of aquaculture, in particular to an opening feed for larvae of sand pond snakeheads. Background technique [0002] Sand pond snakehead, also known as nerdy fish, tiger head shark, pu fish, earth cloth fish or sand snakehead, is widely distributed in the Yangtze River, Pearl River, Qiantang River and Minjiang River and other water systems in my country, and mostly lives in still water areas of lakes and river ditches. It lives in shallow near-shore waters mixed with sand, weeds and gravel, and belongs to small bottom fish. Sand pond snakehead has less thorns, delicious taste, rich nutrition, high protein and fat content, relatively rich calcium, phosphorus and iron content, and the content of essential amino acids and umami amino acids is higher than that of ordinary fish. It is a rare fish with high economic value. [0003] Channa is a carnivorous fish. In natural waters, it mainly preys on fresh live ...

Claims

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Application Information

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IPC IPC(8): A23K50/80A23K10/20A23K10/22A23K10/37A23K20/158A23K20/163A23K20/174A23K20/20A23K40/30
CPCA23K10/20A23K10/22A23K10/37A23K20/158A23K20/163A23K20/174A23K20/20A23K40/30A23K50/80Y02A40/818Y02P60/87
Inventor 张磊王一亭程飞谢松光
Owner INST OF AQUATIC LIFE ACAD SINICA
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