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Feed additive for resisting stress and promoting growth of weaned piglets

A feed additive and growth-promoting technology, applied in animal feed, animal feed, application, etc., can solve problems such as injury, drug resistance of pathogenic bacteria, threat to animal and human health, etc.

Active Publication Date: 2018-08-21
宁波科瑞特动物药业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing methods to alleviate piglet stress mainly reduce the chance of piglets contracting diseases by adding large doses of antibiotics to feed or drinking water, but they cannot fundamentally solve the problems of intestinal damage, immune suppression and growth slowdown in piglets. Heavy use can lead to drug resistance in pathogenic bacteria, further threatening the health of animals and humans

Method used

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  • Feed additive for resisting stress and promoting growth of weaned piglets

Examples

Experimental program
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Effect test

preparation example Construction

[0037] The preparation method of the modified oligomeric chitosan comprises the following steps:

[0038] (1) Add chitosan and 2mol / L hydrochloric acid solution to the reactor, stir until the chitosan dissolves, place the reaction system in an ice bath, add sodium nitrite when the temperature reaches -5-0°C, and keep warm React, until the reaction solution is detected and the starch potassium iodide test paper is blue-violet to stop the reaction, and the excess sodium nitrite is neutralized with urea; the weight ratio of the chitosan to the hydrochloric acid solution and the sodium nitrite is 1 : 20: 1.1; the molecular weight of the chitosan is 10000;

[0039] (2) nitrogen gas was introduced into step (1), the temperature was raised to 20°C, the pH value of the reaction system was adjusted to 7.5 with 1 mol / L sodium hydroxide solution, naringin dihydrochalcone was slowly added, and the reaction was incubated for 1 h. , then add 3,4',5-trihydroxystilbene, keep the reaction for...

Embodiment 1

[0065] Calculated by weight, its preparation raw materials include 6 parts of modified chitosan, 8 parts of taurine, 12 parts of chicken liver powder, 9 parts of silkworm chrysalis protein powder, 6 parts of amino acids, 10 parts of vitamins, N-carbamyl 2 parts of chelated copper glutamic acid, 3 parts of N-carbamyl glutamic acid chelated zinc, 1 part of manganese methionine, 10 parts of glucose, and 7 parts of sodium butyrate; wherein, the modified chitosan is: Chitosan grafted naringin dihydrochalcone, 3,4',5-trihydroxystilbene and 2-(2,4-difluorophenyl)-1,3-bis(1H-1, 2,4-triazol-1-yl)-2-propanol is prepared;

[0066]The chitosan and the naringin dihydrochalcone, the 3,4',5-trihydroxystilbene, the 2-(2,4-difluorophenyl)-1,3 - the weight ratio of bis(1H-1,2,4-triazol-1-yl)-2-propanol is 1:0.05:0.1:0.02; the amino acids are lysine, methionine, cysteine, Glutamic acid; the weight ratio of the lysine to the methionine, the cysteine, and the glutamic acid is 1:0.3:0.7:1.2; the ...

Embodiment 2

[0079] Calculated by weight, its preparation raw materials include 6 parts of modified chitosan, 8 parts of taurine, 12 parts of chicken liver powder, 9 parts of silkworm chrysalis protein powder, 6 parts of amino acids, 10 parts of vitamins, N-carbamyl 2 parts of chelated copper glutamic acid, 3 parts of N-carbamyl glutamic acid chelated zinc, 1 part of manganese methionine, 10 parts of glucose, and 7 parts of sodium butyrate; wherein, the modified chitosan is: Chitosan grafted naringin dihydrochalcone, 3,4',5-trihydroxystilbene and 2-(2,4-difluorophenyl)-1,3-bis(1H-1, 2,4-triazol-1-yl)-2-propanol is prepared;

[0080] The chitosan and the naringin dihydrochalcone, the 3,4',5-trihydroxystilbene, the 2-(2,4-difluorophenyl)-1,3 - the weight ratio of bis(1H-1,2,4-triazol-1-yl)-2-propanol is 1:0.02:0.01:0.05; the amino acids are lysine, methionine, cysteine, Glutamic acid; the weight ratio of the lysine to the methionine, the cysteine, and the glutamic acid is 1:0.3:0.7:1.2; th...

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Abstract

The invention provides a feed additive for resisting stress and promoting growth of weaned piglets. The feed additive at least comprises the following preparation raw materials in parts by weight of 0.5-10 parts of modified oligomerization chitosan, 5-20 parts of taurine, 2-20 parts of chicken liver powder, 2-15 parts of silkworm chrysalis protein powder, 2-15 parts of amino acids, 5-25 parts of vitamins, 1-5 parts of N-carbamylglutamate chelated copper, 1-5 parts of N-carbamylglutamate chelated zinc, 1-5 parts of manganese methionine, 2-15 parts of glucose, and 3-20 parts of sodium butyrate,wherein the modified oligomerization chitosan is prepared from chitosan grafted naringin dihydrochalcone, 3,4',5-trihydroxyl Stilbene and 2-(2,4-difluorophenyl)-1,3-bis(1H-1,2,4-triazol-1-yl)-2-propanol.

Description

technical field [0001] The invention relates to the technical field of feed additives, in particular, the invention relates to a feed additive for weaning piglets to resist stress and promote growth. Background technique [0002] In animal husbandry, early weaning of piglets is an important means to improve pig production efficiency, because early weaning can improve the productivity and utilization rate of sows, increase the annual number of litters and annual litters of sows, and can Reduce the chance of piglets being infected with pathogens and improve their health. [0003] Although the adoption of early weaning measures can have a positive impact on the economic benefits of the farm, due to the digestive physiological characteristics of early weaned piglets and various stresses caused by weaning, it will cause malnutrition, slow growth and diarrhea rate in piglets. Weaning stress syndrome, such as increased mortality and increased mortality, has offset its positive eff...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23K50/30A23K50/60A23K10/26A23K20/105A23K20/142A23K20/147A23K20/163A23K20/174A23K20/20
CPCA23K10/26A23K20/105A23K20/142A23K20/147A23K20/163A23K20/174A23K20/30A23K50/30A23K50/60
Inventor 陈振郭瑞忠王亚佩王先明
Owner 宁波科瑞特动物药业有限公司
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