A kind of pharmaceutical composition and preparation method thereof for preventing infectious bronchitis of chicken and
Purposes
Technical field
The present invention relates to a kind of pharmaceutical compositions for preventing infectious bronchitis of chicken and its preparation method and application, belong to medicine
Object field.
Background technology
Infectious bronchitis of chicken (Infectious bronchitis, IB) is by infectious bronchitis virus
The viral disease that a kind of acute, high degree in contact of chicken caused by (Infectious bronchitisvirus, IBV) infects
Disease.Infected chicken clinical symptoms show as cough, sneeze, tracheae rale, price of deed decline, productivity forfeiture, death rate increase
Deng.Laying hen infects this after being ill, and egg production substantially reduces, and protein quality declines fairly obvious.The disease is to seriously endanger the world to support
One of serious infectious diseases of fowl industry, this disease is popular throughout the year, but the most serious with Winter-Spring cold season, and the disease has been spread at present
To national most area, huge economic loss is caused to poultry husbandry.Since the serotype of IBV is more, variation is fast, each poison
Strain Virulence Difference is big, and cross-protection is low between strain, and larger difficulty is brought to the preventing and controlling of the disease.
The treatment of the disease at present is mostly treated using biochemical drugs such as interferon, immunoglobulin, immune ribonucleic acids,
There are price costly, the shortcomings of curative effect is not notable.In recent years, cheap, eutherapeutic Chinese medicine treatment is explored to pass
Metachromia bronchitis is increasingly paid attention to by veterinary clinic, is such as somebody's turn to do using with clearing heat and detoxicating and relieving cough and reducing sputum Chinese medicine
The treatment of disease, achieves the effect of certain.
Radix scutellariae, Fructus Forsythiae have effects that clearing heat and detoxicating, and Rhizoma Atractylodis Macrocephalae has effects that invigorating the spleen and eliminating dampness, clinically for treating poultry
The diseases such as fowl warm disease heating, cough with lung heat.It is existing prevention infectious bronchitis of chicken pharmaceutical composition be mostly comprising radix scutellariae,
The big prescription of one or both of three kinds of Fructus Forsythiae, Rhizoma Atractylodis Macrocephalae primary crude drugs, there has been no with Baical Skullcap root P.E, forsythia suspense extraction and white
Pharmaceutical composition of the art for the prevention infectious bronchitis of chicken of prescription.
Invention content
The technical scheme is that provide a kind of pharmaceutical composition for preventing infectious bronchitis of chicken and its preparation
Method and purposes.
The present invention provides a kind of pharmaceutical compositions for preventing infectious bronchitis of chicken, it is matched by following weight
Raw material is prepared:
1-3 parts of Baical Skullcap root P.E, 1-3 parts of forsythia suspense extraction, 10-30 parts of Rhizoma Atractylodis Macrocephalae.
Wherein, in Baical Skullcap root P.E 85.0% is no less than containing scutelloside;It is no less than in forsythia suspense extraction containing forsythiaside A
6.0%, forsythin is no less than 0.5%.
Preferably, the weight proportion of raw material is:
1 part of Baical Skullcap root P.E, 2 parts of forsythia suspense extraction, 10 parts of Rhizoma Atractylodis Macrocephalae.
Pharmaceutical composition prepared by the present invention is primary medicinal powder, water or the extractive with organic solvent by Rhizoma Atractylodis Macrocephalae, adds in radix scutellariae
Extract and forsythia suspense extraction add in pharmaceutically acceptable auxiliary material or complementary ingredient are prepared into pharmaceutically as active constituent
Common preparation.
Wherein, the preparation is decoction, powder, granule, mixture, tablet or capsule.
The present invention also provides a kind of methods for preparing the pharmaceutical composition, it includes the following steps:
A. the Baical Skullcap root P.E, forsythia suspense extraction, Rhizoma Atractylodis Macrocephalae of each weight proportion are weighed;
B. Rhizoma Atractylodis Macrocephalae is taken, adds 20 times to measure water boiling and extraction 3 times, 1.5 hours every time, filtering, filtrate concentration was depressurized dry
It is dry, it is spare;
C. the Rhizoma Atractylodis Macrocephalae extract obtained Baical Skullcap root P.E, forsythia suspense extraction and step b after mixing, adds in pharmaceutically
Acceptable auxiliary material or complementary ingredient are prepared into pharmaceutically common preparation.
The present invention also provides purposes of the pharmaceutical composition in the drug for preparing prevention infectious bronchitis of chicken.
Three kinds of Baical Skullcap root P.E, forsythia suspense extraction, Rhizoma Atractylodis Macrocephalae drugs are combined to treat avian infectious branch by the present invention
Tracheitis, compared with the common antiviral and antibacterials of clinic, significant in efficacy, cure rate reaches 98%, is provided for veterinary clinic
A kind of pharmaceutical composition of completely new treatment infectious bronchitis of chicken.
Below by way of specific embodiment, the present invention is described in further detail, but is not intended to limit the present invention, ability
Field technique personnel, without departing from the spirit of the present invention, should all belong to this hair according to the various changes of the invention made and replacement
Bright scope of the appended claims.
Specific embodiment
The preparation of 1 pharmaceutical composition of the present invention of embodiment
Raw material is weighed according to following weight proportioning:
Baical Skullcap root P.E 1g, forsythia suspense extraction 1g, Rhizoma Atractylodis Macrocephalae 10g;
Preparation method:
A. the Baical Skullcap root P.E, forsythia suspense extraction, Rhizoma Atractylodis Macrocephalae of each weight proportion are weighed;
B. Rhizoma Atractylodis Macrocephalae is taken, adds 20 times to measure water boiling and extraction 3 times, 1.5 hours every time, filtering, filtrate concentration was depressurized dry
It is dry, it is spare.
C. the obtained Rhizoma Atractylodis Macrocephalae extract of Baical Skullcap root P.E, forsythia suspense extraction and step b is added into starch extremely after mixing
100g, be uniformly mixed, pack to get.
The preparation of 2 pharmaceutical composition of the present invention of embodiment
Raw material is weighed according to following weight proportioning:
Baical Skullcap root P.E 1g, forsythia suspense extraction 1g, Rhizoma Atractylodis Macrocephalae 20g;
The preparation method is the same as that of Example 1.
The preparation of 3 pharmaceutical composition of the present invention of embodiment
Raw material is weighed according to following weight proportioning:
Baical Skullcap root P.E 1g, forsythia suspense extraction 2g, Rhizoma Atractylodis Macrocephalae 10g;
The preparation method is the same as that of Example 1.
The preparation of 4 pharmaceutical composition of the present invention of embodiment
Raw material is weighed according to following weight proportioning:
Baical Skullcap root P.E 1g, forsythia suspense extraction 2g, Rhizoma Atractylodis Macrocephalae 10g;
Preparation method:
A. the Baical Skullcap root P.E, forsythia suspense extraction, Rhizoma Atractylodis Macrocephalae of each weight proportion are weighed;
B. Rhizoma Atractylodis Macrocephalae is taken, adds 20 times to measure water boiling and extraction 3 times, 1.5 hours every time, filtering, filtrate concentrated, and medicinal extract is standby
With;
C. the Rhizoma Atractylodis Macrocephalae medicinal extract obtained Baical Skullcap root P.E, forsythia suspense extraction and step b after mixing, adds purified water constant volume
To 100ml, be uniformly mixed, add in 0.2% sodium benzoate, adjustings pH value is 6.5-7.0, is packed, sterilize to get.
Above-mentioned Baical Skullcap root P.E, forsythia suspense extraction are pressed《Republic of China Veterinary Pharmacopoeia》2010 editions second radix scutellariae extractions
The standard preparation of object, forsythia suspense extraction.
Beneficial effects of the present invention are proved below by way of specific experiment.
1 medical treatment infectious bronchitis of chicken clinical verification of the present invention of experimental example is tested
(1) experimental drug
The drug that sample 1 is prepared according to embodiment 1
The drug that sample 2 is prepared according to embodiment 2
The drug that sample 3 is prepared according to embodiment 3
The drug that sample 4 is prepared according to embodiment 4
(2) experimental animal selection and grouping
It chooses in clinical 30 ages in days, the symptoms such as performance rhinorrhea, expiratory dyspnea, sneeze are diagnosed as avian infectious bronchus
Scorching chick is as clinical test object, 300 altogether, is divided into 6 groups, every group 50, respectively sample 1,2,3,4 groups, the positive
Medicine group and blank control group.
(3) medication and dosage
Sample 1,2,3,4 groups respectively spice give corresponding drug (daily dose be calculated as 0.01g/ with Baical Skullcap root P.E
Kg weight), positive drug group gives tylosin drug therapy (daily dose is 0.01g/kg weight), and blank control group is not
Give any drug therapy, successive administration 7 days.
(4) test index and method
During administration and after the completion of administration in 7 days, the clinical symptoms and Cure of each group illness chicken, system are observed
The indexs such as meter analysis cure rate, the death rate.
(5) result of the test and analysis
1 clinicing symptom observation result of table
By clinicing symptom observation result it is found that the control group rhinorrhea of chick, breathing in non-administration, group is tired
It is 13 days that the diseases of the respiratory symptoms such as hardly possible, sneeze, which continues the time, gives the respiratory symptom disease after tylosin treatment and continues the time and is
10 days, and give respiratory symptom disease after sample 1-4 groups and continue the time and substantially reduce, it concentrates on 6-7 days or so, illustrates sample 1-4
Group is respectively provided with the apparent effect for alleviating infectious avian bronchitis acute attack symptom, and curative effect is better than positive drug group.
2 clinical test results of table
By clinical verification result of the test it is found that the control group death rate is 22%, the death rate of positive drug group is 12%, sample
The death rate of product 1-4 groups substantially reduces, and protects disease 5% hereinafter, being respectively provided with significant treatment infectious avian bronchitis
Curative effect, curative effect are better than positive drug group.Chi-square Test is carried out to data in table, the results showed that, positive drug group and control group phase
Than significant difference (P<0.05), be administered sample 1,2,3,4 groups compared with the control group, have pole significant difference (P<0.01),
The effect of 3,4 groups of sample is administered, is optimal, to the cure rate of infectious avian bronchitis up to 98%.Wherein, in bulk pharmaceutical chemicals
Weight proportion is:1 part of Baical Skullcap root P.E, 2 parts of forsythia suspense extraction, the drug effect of 10 parts of Rhizoma Atractylodis Macrocephalae are best.