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A compound enzyme preparation and its application in post-spraying of aquatic feed

A compound enzyme preparation and protective agent technology, which is applied in the field of compound enzyme preparation and its application in post-spraying of aquatic feed, and can solve the problems of increased pulverization rate and activity loss of pellet feed

Active Publication Date: 2021-05-14
青岛玛斯特生物技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Liquid post-spraying is an effective way to solve the loss of heat-sensitive additives in feed processing, but there are still technical obstacles: post-spraying can only coat heat-sensitive additives on the surface of feed particles, which is easily affected by the environment, transportation and storage. The production process may also cause an increase in the pulverization rate of pellet feed

Method used

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  • A compound enzyme preparation and its application in post-spraying of aquatic feed
  • A compound enzyme preparation and its application in post-spraying of aquatic feed
  • A compound enzyme preparation and its application in post-spraying of aquatic feed

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Experimental program
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Effect test

Embodiment 1

[0021] The screening of embodiment 1 compound protective agent and its influence on compound vitamin sedimentation rate

[0022] The raw materials used in the composite protective agent are seaweed powder, sodium alginate, and carrageenan, which are uniformly mixed according to different proportions and then added to the multivitamin. Use the following method to evaluate its performance: water solubility, take 12.5g of composite protective agent, put it in 1000ml water, stir at 100 rpm for 20min to mix, and compare the uniformity of mixing and the difficulty of dissolving in parallel. Viscosity, take 25g of compound protective agent, add 200g of compound vitamins and 2000g of water respectively, stir at 100 rpm for 20min and mix evenly, measure viscosity with NDJ digital display viscometer. Settling rate, start timing 0.5h after stirring evenly, observe the settling speed of the multivitamin solution and the settling rate after 12 hours, the good stability settles slowly and h...

Embodiment 11

[0026] Mix seaweed powder: sodium alginate: carrageenan evenly according to the weight ratio of 40:15:45 (formulation 1), take 12.5g of compound protective agent and put it in 1000ml water, stir at 100 rpm, the dissolution is slow and the water solubility is poor , after stirring for 20 minutes, there are obvious insoluble matter, which is in the form of agglomerates; take 25g of compound protective agent, add 200g of compound vitamins and 2000g of water, stir at 100 rpm for 20 minutes, and measure the viscosity to be 796mPa.s, the viscosity is too low, and the agglomeration will affect the spraying Atomization effect: After stirring evenly, the multivitamin solution began to settle slowly after 30 minutes, and the settlement rate after 12 hours was 15.3%.

Embodiment 12

[0028] Seaweed powder: sodium alginate: carrageenan is mixed evenly according to the weight ratio of 50:12.5:37.5 (Formulation 2). Take 12.5g of compound protective agent and put it in 1000ml water, stir at 100 rpm, the dissolution is slow, and the water solubility is good. After stirring for 20 minutes, there is a small amount of insoluble matter, which is in the form of suspended small lumps; take 25g of compound protective agent, add 200g of compound vitamins and 2000g of water, stir at 100 rpm for 20 minutes, and measure the viscosity to be 1075mPaf.s. The viscosity is low and does not affect the spray mist After stirring evenly, the multivitamin solution began to settle slowly after 40 minutes, and the settlement rate was 11.5% after 12 hours.

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Abstract

The invention relates to the technical field of feed additives, in particular to a compound enzyme preparation and its application in post-spraying of aquatic feed. The compound enzyme preparation comprises protease, phytase, cellulase and compound protective agent, has good water solubility, can be dissolved in water to form a stable and uniform liquid state, and has no obvious layering phenomenon after being fully stirred and mixed uniformly. The compound enzyme preparation is added to the aquatic feed through a post-spraying process, which can effectively reduce the loss of enzyme activity of the compound enzyme in the process of feed processing and feeding, thereby increasing the weight gain rate of grass carp by 19.4%, and reducing the feed coefficient by 8.4% , the activities of protease, lipase and amylase in the digestive tract of grass carp increased by 26.5%, 48.9%, and 15.7%, respectively, and significant progress has been made.

Description

technical field [0001] The invention relates to the technical field of feed additives, in particular to a compound enzyme preparation and its application in post-spraying of aquatic feed. Background technique [0002] Large-scale production of pellet feed, extruded feed and expanded feed has become a development trend of the world feed industry. Feed mills increasingly use high-temperature short-time processing equipment such as granulators, extruders, deep conditioners, and general-purpose ripening granulators to perform conditioning, puffing, expansion, and granulation of compound feed. The high temperature treatment process can effectively kill some harmful substances such as Salmonella, reduce or inhibit anti-nutritional factors, and at the same time improve the palatability of feed and increase feed remuneration. However, in these processing techniques, due to the joint action of high temperature, high pressure and moisture, heat-sensitive ingredients added in powder f...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A23K20/189A23K40/30A23K50/80
CPCA23K20/189A23K40/30A23K50/80
Inventor 郭本月周怡刘广魏万权
Owner 青岛玛斯特生物技术有限公司
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