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Mulberry leaf composite protein source replacing fish meal and preparation method of protein source

A compound protein and fish meal replacement technology, which can be applied in the direction of climate change adaptation, animal feed, additional food elements, etc., can solve the problems of increasing production costs and burdens, and achieve the goals of promoting growth, reducing malondialdehyde content, and improving lipid metabolism Effect

Inactive Publication Date: 2018-08-21
SOUTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that in most foreign studies, mulberry leaves are usually added to the formula in the form of fermentation, and at the same time, fish waste can be used to replace fish meal, but this often increases the production cost. Create a certain burden on the development of the industry
However, domestic studies have shown that adding a certain amount of unfermented mulberry leaves has no significant effect on the growth of fish, and can improve the lipid metabolism of fish simultaneously (Ma Hengjia, Liu Xinyi, Xie Nan, Liu Kai, Pan Binbin, Huang Hui. Preliminary study on the application of mulberry leaf powder in grass carp feed[J]. Scientific Fish Culture, 2013, 05:79-80.) (Li Fajian, Yang Yang, Chen Wenyan, Lin Shimei, Luo Li, Huang Xianzhi. Effects on fish growth performance, lipid metabolism and muscle quality[J]. Animal Nutrition Journal, 2014, 11:3485-3492.), but no one has reported the research on mulberry leaf protein replacing fish meal

Method used

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  • Mulberry leaf composite protein source replacing fish meal and preparation method of protein source
  • Mulberry leaf composite protein source replacing fish meal and preparation method of protein source
  • Mulberry leaf composite protein source replacing fish meal and preparation method of protein source

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The mulberry leaves, soybean meal, cottonseed meal and DL-methionine are produced according to the weight percentage of 14%: 43%: 42.7%: 0.3%,

[0033] Step 1: making mulberry leaf powder; drying mulberry leaves to semi-dry, chopped, drying at 75°C for 3 hours, and then crushed to 60 mesh;

[0034] Step 2: making soybean meal powder and cotton meal powder; drying soybean meal and cotton meal at 75°C for 3 hours, and then pulverizing to 60 mesh;

[0035] Step 3: mixing; mixing mulberry leaf powder, soybean meal powder and cottonseed meal powder, mixing and stirring for 5min;

[0036] Step 4: add DL-methionine, continue to mix and stir for 5 minutes, and obtain the mulberry leaf compound protein source.

[0037] The moisture content, crude protein content and crude fat content in the obtained mulberry leaf composite protein source were detected, and the obtained detection data were shown in Table 1.

Embodiment 2

[0039] The mulberry leaves, soybean meal, cottonseed meal and DL-methionine are produced according to the weight percentage of 16%: 42%: 41.7%: 0.3%,

[0040] Step 1: making mulberry leaf powder; drying mulberry leaves to semi-dry, chopped, drying at 75°C for 4 hours, and then crushed to 70 mesh;

[0041] Step 2: making soybean meal powder and cotton meal powder; drying soybean meal and cotton meal at 75°C for 4 hours, and then pulverizing to 70 mesh;

[0042] Step 3: mixing; mixing mulberry leaf powder, soybean meal powder and cottonseed meal powder, mixing and stirring for 10min;

[0043] Step 4: add DL-methionine, and continue to mix and stir for 8 minutes to obtain a mulberry leaf compound protein source.

[0044] The moisture content, crude protein content and crude fat content in the obtained mulberry leaf composite protein source were detected, and the obtained detection data were shown in Table 1.

Embodiment 3

[0046] The mulberry leaves, soybean meal, cottonseed meal and DL-methionine are produced according to the weight percentage of 18%: 41.6%: 39%: 0.4%,

[0047] Step 1: making mulberry leaf powder; drying mulberry leaves to semi-dry, chopped, drying at 75°C for 3.5 hours, and then crushed to 70 mesh;

[0048] Step 2: making soybean meal powder and cotton meal powder; drying soybean meal and cotton meal at 75°C for 3.5 hours, and then pulverizing to 70 mesh;

[0049] Step 3: mixing; mix mulberry leaf powder, soybean meal powder and cottonseed meal powder, mix and stir for 8min;

[0050] Step 4: add DL-methionine, and continue to mix and stir for 8 minutes to obtain a mulberry leaf compound protein source.

[0051] The moisture content, crude protein content and crude fat content in the obtained mulberry leaf composite protein source were detected, and the obtained detection data were shown in Table 1.

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Abstract

The invention belongs to the technical field of aquatic animal nutrition and feed, and particularly relates to a mulberry leaf composite protein source replacing fish meal and a preparation method ofthe protein source. The invention discloses the mulberry leaf composite protein source replacing fish meal, and the protein source comprises the following components: mulberry leaves, soybean meal, cotton meal and DL-methionine, wherein the weight ration of the mulberry leaves, the soybean meal, the cotton meal to the DL-methionine is (14-20%):(40-45%):(39-43%):(0.2-0.4%). The invention also provides the preparation method of the mulberry leaf composite protein source. The protein source can promote the growth of tilapias, and increase the feeding amount and the weight gain rate of cultured animals; can promote the decrease of fat content of liver, and reduce the activity of glutamic oxalacetic transaminase and glutamic-pyruvic transaminase in serum separately; can improve anti-oxidation ability of organisms, reduce the content of malondialdehyde in the serum, and increase the total antioxidant capacity; can significantly improve the lipid metabolism of the cultured animals, and reducethe content of total cholesterol, triglycerides and glucose in the serum; and can improve the economic benefit, and reduce feed cost and breeding cost.

Description

technical field [0001] The invention belongs to the technical field of aquatic animal nutrition and feed, and in particular relates to a mulberry leaf composite protein source for replacing fish meal and a preparation method thereof, particularly a mulberry leaf composite protein source suitable for tilapia and other low fish meal feeds. Background technique [0002] Fish meal is widely used in aquatic feed because of its high protein content, rich amino acid, fatty acid, vitamin and mineral content, good palatability, and easy digestion and absorption by aquatic animals. In recent years, with the increasing demand for aquatic products, the scale of aquaculture is also gradually expanding, and the demand for fishmeal has shown a trend of rapid growth. However, due to overfishing and the frequent occurrence of El Niño in recent years, the catch of many aquatic animals for fishmeal and fish oil production has dropped from peak to trough in the past few decades, and the quality...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K10/30A23K10/37A23K20/142A23K50/80
CPCA23K10/30A23K10/37A23K20/142A23K50/80Y02P60/87Y02A40/818
Inventor 罗莉黄先智林肯沈以红王双
Owner SOUTHWEST UNIV
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