Environmental-protecting type black carp feed

A green carp feed and environmental-friendly technology, applied in animal feed, animal feed, climate change adaptation, etc., can solve the problems of feed nitrogen and phosphorus utilization rate, lack of raw material bioavailability, water environment pollution, etc., to reduce nitrogen and The loss of phosphorus, the effect of ensuring healthy growth and improving utilization

Inactive Publication Date: 2009-01-28
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

[0052] An environmentally friendly herring feed, based on weight percentage, consists of the following components: 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%, coated lysine 0.3%, coated methionine 0.1%, additives 1%. The additives are commercially available vitamin premixes and mineral premixes for fish produced by Beijing Sangpu Company, and the coated lysine and coated methionine are commercially available products.

[0053] After the feed is processed into extruded feed, the second-instar herring was raised in ponds for 60 days. The average weight of herring increased from 54g to 142g, the feed coefficient was 1.1, the protein efficiency was 2.2, and the deposition rate of nitrogen and phosphorus reached 35% and respectively. 30%.

Embodiment 2

[0060] An environmentally friendly herring feed, based on weight percentage, consists of the following components: 20% high-gluten flour, 25% white fish meal, 2% blood meal, 15% soybean meal, 5% rapeseed meal, 30.5% cottonseed meal, fish oil 1 %, soybean oil 1%, phytase 1500U / kg, calcium dihydrogen phosphate 1%, salt 0.3%, coated lysine 0.3%, coated methionine 0.1%, additives 1%. The additives are commercially available vitamin premixes and mineral premixes for fish produced by Beijing Sangpu Company.

[0061] The feed is processed into extruded feed by extrusion process and fed to 2nd-year-old herring under pond conditions for 60 days. 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 rate of nitrogen and phosphorus reached 34%. And 30%.

Embodiment 3

[0063] An environmentally friendly herring feed, calculated by weight percentage, is composed of the following components: 25% high-gluten flour, 19% white fish meal, 2% blood meal, 20% soybean meal, 5% rapeseed meal, 24.5% cottonseed meal, fish oil 1 %, soybean oil 1%, phytase 1500U / kg, calcium dihydrogen phosphate 1%, salt 0.3%, coated lysine 0.1%, coated methionine 0.1%, additives 1%. The additives are commercially available vitamin premixes and mineral premixes for fish produced by Beijing Sangpu Company.

[0064] The feed is extruded into extruded feed and then fed to 2 years old herring. After 60 days of breeding in pond conditions, the average weight of herring increases from 54g to 136g, the feed coefficient is 1.2, the protein efficiency is 2.2, and the deposition rate of nitrogen and phosphorus is 31. % And 30%. Raised in an 800L aquarium for 60 days, the average weight of herring increased from 54g to 127g, the feed coefficient was 1.37, the protein efficiency was 2.2, ...

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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 special feed for herring, in particular to an environmentally friendly herring feed, which is particularly suitable for improving the quality of herring breeding water and the discharge of breeding tail water. Background technique [0002] Herring, also known as "snail green", has a cylindrical body with a flat tail and a round abdomen. The back and upper half of the body are blue-black, and the abdomen is milky white. It is one of the four major major fish in my country and an important aquatic product in the Yangtze River Basin. Breeding species. [0003] However, water pollution problems arise during aquaculture. my country’s water pollution problem is quite serious. According to the water quality evaluation of 134,600 kilometers of rivers and 322 reservoirs across the country, nearly 40% of river water has been seriously polluted. Among the 412 monitored sections of the seven major water systems in the country, water of inferi...

Claims

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Application Information

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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
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