Procambarus-clarkii environment-friendly sinking puffing feed and preparing method

A technology of Crayfish and extruded feed, applied in the field of feed, can solve the problems of unsatisfactory cultivation specifications, easy to cause water pollution, low survival rate of cultivation, etc., so as to improve feed utilization efficiency, improve digestion and utilization efficiency, and reduce ammonia nitrogen. The effect of emissions

Inactive Publication Date: 2016-12-07
HUAZHONG AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a kind of Procambarus clarkii for the disadvantages of slow growth rate, high incidence of disease, low breeding survival rate, unsatisfactory growth specifications and easy water pollution after ingesting ordinary pellet feed. Environmentally-friendly sinking extruded feed, reasonable formula, easy to use, reduces the breeding cost and morbidity of Procambarus clarkii, improves the disease resistance of Procambarus clarkii, and realizes the sustainable development of Procambarus clarkii aquaculture

Method used

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  • Procambarus-clarkii environment-friendly sinking puffing feed and preparing method
  • Procambarus-clarkii environment-friendly sinking puffing feed and preparing method
  • Procambarus-clarkii environment-friendly sinking puffing feed and preparing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] According to formula 1 shown in Table 1, extruded pellet feed and ordinary ring die pellet feed were prepared, and 4.17 to 8.34 g of Procambarus clarkii were fed for 40 days under the aquaculture water environment of 17 to 25 ° C. The feed coefficient of the extruded feed group was 0.96, and the specific Weight gain rate (SGR,%d ～1 ) 4.88, weight gain rate (WG,%) 604.83%, survival rate 89.17%; common ring die pellet feed group feed coefficient 1.38, specific weight gain rate (SGR,%d ～1 ) 4.46, weight gain rate (WG, %) 496.31%, survival rate 77.92%, each parameter extruded feed breeding effect is significantly higher than ordinary ring die pellet feed.

[0039] The preparation method of extruded pellet feed is:

[0040] 1) Weigh the feed raw materials in said parts by weight, stir and mix all the raw materials separately, grind the powdery raw materials (protein source raw materials, sugar source raw materials, compound vitamins, compound mineral salts, antioxidants and...

Embodiment 2

[0044] According to formula 2 shown in Table 1, extruded pellet feed and ordinary ring die pellet feed were prepared, and 4.17-8.34 g of Procambarus clarkii were fed for 40 days under the culture water environment of 17-25°C. The feed coefficient of the extruded feed group was 1.04, and the specific Weight gain rate (SGR,%d ～1 ) 4.76, weight gain rate (WG,%) 572.52%, survival rate 90.83%; common ring die pellet feed group feed coefficient 1.46, specific weight gain rate (SGR,%d ～1 ) 4.42, weight gain rate (WG, %) 486.76%, survival rate 74.58%, each parameter puffed feed breeding effect is significantly higher than ordinary ring die pellet feed.

[0045] The preparation method of the expanded pellet feed and the ring die pellet feed is the same as in Example 1.

Embodiment 3

[0047] According to formula 3 shown in Table 1, extruded pellet feed and ordinary ring die pellet feed were prepared, and 4.17-8.34 g of Procambarus clarkii were fed for 40 days under the aquaculture water environment of 17-25 ° C. The feed coefficient of the extruded feed group was 1.06, and the specific Weight gain rate (SGR,%d ～1 ) 4.67, weight gain rate (WG,%) 547.27%, survival rate 91.25%; common ring die pellet feed group feed coefficient 1.45, specific weight gain rate (SGR,%d ～1 ) 4.29, weight gain rate (WG, %) 457.18%, survival rate 73.75%, each parameter extruded feed breeding effect is significantly higher than ordinary ring die pellet feed.

[0048] The preparation method of the expanded pellet feed and the ring die pellet feed is the same as in Example 1.

[0049] Feed coefficient ratio (FCR) = feed amount / (final body weight ~ initial body weight);

[0050] Specific growth rate (specific growth ratio, SGR) = (ln final body weight - ln initial body weight) / days...

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Abstract

The invention discloses a procambarus-clarkii environment-friendly sinking puffing feed and a preparing method. The feed is prepared from protein source-fat source-sugar source raw materials, composite vitamins, composite mineral substances, antioxidants, phagostimulants and adhesives in a certain proportion. The preparing method includes the steps that A, the feed raw materials are respectively smashed and screened, the obtained mixture and the adhesives are mixed to be even, the fat source raw materials are added while stirring, water is adding while stirring after even mixing, and feed base materials are prepared; B, the feed base materials are input into a double-shaft extrusion puffing machine, a slicing motor is started, and the extrusion puffing machine operates in the modes that a switch is switched on, a main motor is started, the feed base materials are matured and extruded through a mold hole for extrusion puffing, semi-particle feed is obtained and matured, and the puffing particle feed is obtained. The formula is reasonable, use is convenient, the culturing cost and the incidence rate of procambarus clarkia are reduced, the disease resistance of procambarus clarkia is improved, and the sustainable development of the procambarus clarkia culturing industry is achieved.

Description

technical field [0001] The invention belongs to the technical field of feed, and specifically relates to an environment-friendly sinking extruded feed for Procambarus clarkii, and also relates to a preparation method of an environment-friendly sinking extruded feed for Procambarus clarkii. The environment-friendly sinking extruded feed of the present invention can completely replace The ice-fresh miscellaneous fish and hard pellet compound feed used in the current Procambarus clarkii culture process. Background technique [0002] Procambarus clarkii (Procambarus clarkii), English name is Red Swamp Crayfish, native to North America, commonly known as freshwater crayfish, belongs to Arthropoda, Crustacea, Decapod, Crayfish family, Procambarus genus in animal taxonomy (Procambarus). Procambarus clarkii is the freshwater crayfish with the widest distribution, the most breeding and the highest breeding output in the world. It has the advantages of fast growth, high meat product...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/80A23K10/22A23K10/37A23K10/26A23K10/24A23K10/18A23K20/158A23K20/105A23K20/163A23K20/10A23K20/174A23K10/30A23K20/20A23K20/28A23K20/26A23K20/24A23K20/22A23K40/10
CPCY02A40/818Y02P60/87
Inventor 袁勇超顾泽茂严伟樊启学李锐莫爱杰
Owner HUAZHONG AGRI UNIV
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