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Environmental-protecting type black carp feed

A herring feed, environmentally friendly technology, applied in animal feed, animal feed, climate change adaptation and other directions, can solve the problems of lack of raw material bioavailability, low feed nitrogen and phosphorus utilization, water environment pollution, etc., to ensure healthy growth. , the effect of reducing the loss of nitrogen and phosphorus and improving the utilization rate

Inactive Publication Date: 2011-05-04
SUZHOU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the formula of the above-mentioned feed mainly improves the utilization rate of feed nutrients by adding exogenous enzyme preparations and microecological preparations, the cost is high, and it is only for sea bass; while the preparation of herring feed in my country is still Based on the chemical content of each ingredient in feed raw materials, there is a lack of research on the bioavailability of raw materials, so that there is a large difference between the supply of nutrients in the formula and the nutritional needs of fish, and the utilization rate of nitrogen and phosphorus in feed is low , causing serious pollution to the water environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] An environment-friendly herring feed consists of the following components in terms of weight percentage: high-gluten flour 19.8%, white fish meal 25%, blood meal 2%, soybean meal 15%, rapeseed meal 5%, cottonseed meal 28.5%, fish oil 1 %, soybean oil 1%, phytase 1500U / kg, calcium dihydrogen phosphate 1%, salt 0.3%, enveloped lysine 0.3%, enveloped methionine 0.1%, additive 1%. The additives are commercially available vitamin premixes and mineral premixes for fish produced by Beijing Samp Company, and the coated lysine and coated methionine are commercially available products.

[0054] After the feed was processed into extruded feed by extrusion process, the second-year-old herring was raised in the pond for 60 days. The average body weight of the herring increased from 54g to 142g. The feed coefficient was 1.1, the protein efficiency was 2.2, and the deposition rates of nitrogen and phosphorus were respectively 35% and 30%.

Embodiment 2

[0061] An environment-friendly herring feed consists of the following components in terms of weight percentage: 20% high-gluten flour, 25% white fish meal, 2% blood meal, 15% soybean meal, 5% rapeseed meal, 30.5% cottonseed meal, 1 fish oil %, soybean oil 1%, phytase 1500U / kg, calcium dihydrogen phosphate 1%, salt 0.3%, enveloped lysine 0.3%, enveloped methionine 0.1%, additive 1%. The additives are commercially available vitamin premix and mineral premix for fish produced by Beijing Sangpu Company.

[0062] After the feed was processed into extruded feed by extrusion process, the 2-year-old herring was fed for 60 days under pond conditions. The average weight of herring increased from 54g to 140g. The feed coefficient was 1.1, the protein efficiency was 2.2, and the deposition rates of nitrogen and phosphorus were respectively 34%. and 30%.

Embodiment 3

[0064] An environment-friendly herring feed consists of the following components in terms of weight percentage: 25% high-gluten flour, 19% white fish meal, 2% blood meal, 20% soybean meal, 5% rapeseed meal, 24.5% cottonseed meal, and 1% fish oil %, soybean oil 1%, phytase 1500U / kg, calcium dihydrogen phosphate 1%, salt 0.3%, enveloped lysine 0.1%, enveloped methionine 0.1%, additive 1%. The additives are commercially available vitamin premix and mineral premix for fish produced by Beijing Sangpu Company.

[0065] After the feed was processed into extruded feed by extrusion process, the 2-year-old herring was fed. The average body weight of the herring increased from 54g to 136g, the feed coefficient was 1.2, the protein efficiency was 2.2, and the deposition rates of nitrogen and phosphorus were respectively 31. % and 30%. Raising in the aquarium of 800L for 60 days, the average body weight of herrings increased from 54g to 127g, the feed factor was 1.37, the protein efficien...

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Abstract

The invention discloses an environment-friendly herring fodder. The herring fodder comprises the constituents of strong flour, white fish meal, blood meal, bean pulp, rapeseed dregs, cotton seed meal, fish oil, bean oil, phytase, calcium biphosphate, salt, coating lysine, coating methionine and additive according to weight percentage. The additive is fish vitamin premix and mineral composition premix. The fodder of the invention aims at herrings, takes digestable amino acid as design considerations, can increase utilization rate of the fodder of herrings, thus increasing the cultivation benefit, simultaneously reducing the drain of nitrogen and phosphorus in the fodder and improving cultivation water quality.

Description

technical field [0001] The invention relates to a feed specially used for herring, in particular to an environment-friendly herring feed, which is especially suitable for improving the water quality of herring culture and discharging the tail water of the culture up to the standard. Background technique [0002] Herring, also known as "snail green", is cylindrical in shape, with a flat tail and a round abdomen; the back and upper half of the body are black and blue, and the abdomen is milky white. It is one of the four major domestic fishes in my country and an important aquatic product in the Yangtze River Basin. Breeding species. [0003] However, water pollution problems arise during the aquaculture process. The water pollution problem in our country is quite serious. According to the water quality evaluation conducted by relevant departments on 134,600 kilometers of rivers and 322 reservoirs in the country, nearly 40% of the river water has been seriously polluted. Amon...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K1/18A23K1/00A23K1/16A23K10/22A23K10/24A23K10/37A23K20/142A23K20/158A23K20/189A23K20/26A23K50/80
CPCY02A40/818Y02P60/87
Inventor 蔡春芳陈敏泉叶元土吴东峰丁瑶萍
Owner SUZHOU UNIV