Detailed Description
The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
EXAMPLE 1 pharmaceutical preparation and use of the invention
(1) Weighing the following raw materials by weight:
80 parts of eucommia bark, 60 parts of semen cuscutae, 30 parts of rhizoma alismatis, 10 parts of citric acid, 10 parts of malic acid and 10 parts of vitamin C.
(2) Pulverizing Eucommiae cortex, semen Cuscutae and Alismatis rhizoma, soaking in water for 30min, decocting for 3 times, each for 1.5 hr, mixing filtrates, concentrating into soft extract, adding citric acid, malic acid and vitamin C, adding appropriate amount of starch and dextrin (or other adjuvants), mixing, making into soft material, granulating, oven drying, and making into granule (each 1g is equivalent to 1g of crude drug).
(3) The application method of the medicine comprises the following steps: strengthening the spleen, promoting growth and preventing diarrhea of weaned pigs; mixed feeding: 0.5-2g of the medicine is added into every 1kg of the feed of the pigs, and the pigs can be freely fed; the medicine is mixed for drinking, 0.25-1g of the medicine is added into 1L of water, and the medicine is freely drunk.
Example 2 pharmaceutical preparation and use of the invention
(1) Weighing the following raw materials by weight:
40 parts of eucommia, 30 parts of semen cuscutae, 10 parts of rhizoma alismatis, 1 part of citric acid, 1 part of malic acid and 1 part of vitamin C.
(2) Pulverizing Eucommiae cortex, semen Cuscutae and Alismatis rhizoma, soaking in water for 30min, decocting for 3 times, each for 1.5 hr, mixing filtrates, concentrating into soft extract, adding citric acid, malic acid and vitamin C, adding appropriate amount of starch and dextrin (or other adjuvants), mixing, making into soft material, granulating, oven drying, and making into granule (each 1g is equivalent to 1g of crude drug).
(3) The application method of the medicine comprises the following steps: strengthening the spleen, promoting growth and preventing diarrhea of weaned pigs; mixed feeding: 0.5-2g of the medicine is added into every 1kg of the feed of the pigs, and the pigs can be freely fed; the medicine is mixed for drinking, 0.25-1g of the medicine is added into 1L of water, and the medicine is freely drunk.
Example 3 pharmaceutical preparation and use of the invention
(1) Weighing the following raw materials by weight:
50 parts of eucommia bark, 40 parts of south dodder seed, 15 parts of oriental waterplantain rhizome, 3 parts of citric acid, 3 parts of malic acid and 3 parts of vitamin C.
(2) Pulverizing Eucommiae cortex, semen Cuscutae and Alismatis rhizoma, soaking in water for 30min, decocting for 3 times, each for 1.5 hr, mixing filtrates, concentrating into soft extract, adding citric acid, malic acid and vitamin C, adding appropriate amount of starch and dextrin (or other adjuvants), mixing, making into soft material, granulating, oven drying, and making into granule (each 1g is equivalent to 1g of crude drug).
(3) The application method of the medicine comprises the following steps: strengthening the spleen, promoting growth and preventing diarrhea of weaned pigs; mixed feeding: 0.5-2g of the medicine is added into every 1kg of the feed of the pigs, and the pigs can be freely fed; the medicine is mixed for drinking, 0.25-1g of the medicine is added into 1L of water, and the medicine is freely drunk.
Example 4 pharmaceutical preparation and use of the invention
(1) Weighing the following raw materials by weight:
60 parts of eucommia bark, 50 parts of dodder, 25 parts of alisma orientale, 8 parts of citric acid, 8 parts of malic acid and 8 parts of vitamin C.
(2) Pulverizing Eucommiae cortex, semen Cuscutae and Alismatis rhizoma, soaking in water for 30min, decocting for 3 times, each for 1.5 hr, mixing filtrates, concentrating into soft extract, adding citric acid, malic acid and vitamin C, adding appropriate amount of starch and dextrin (or other adjuvants), mixing, making into soft material, granulating, oven drying, and making into granule (each 1g is equivalent to 1g of crude drug).
(3) The application method of the medicine comprises the following steps: strengthening the spleen, promoting growth and preventing diarrhea of weaned pigs; mixed feeding: 0.5-2g of the medicine is added into every 1kg of the feed of the pigs, and the pigs can be freely fed; the medicine is mixed for drinking, 0.25-1g of the medicine is added into 1L of water, and the medicine is freely drunk.
Example 5 pharmaceutical preparation and use of the invention
(1) Weighing the following raw materials by weight:
55 parts of eucommia bark, 45 parts of semen cuscutae, 20 parts of rhizoma alismatis, 5 parts of citric acid, 5 parts of malic acid and 5 parts of vitamin C.
(2) Pulverizing Eucommiae cortex, semen Cuscutae and Alismatis rhizoma, soaking in water for 30min, decocting for 3 times, each for 1.5 hr, mixing filtrates, concentrating into soft extract, adding citric acid, malic acid and vitamin C, adding appropriate amount of starch and dextrin (or other adjuvants), mixing, making into soft material, granulating, oven drying, and making into granule (each 1g is equivalent to 1g of crude drug).
(3) The application method of the medicine comprises the following steps: strengthening the spleen, promoting growth and preventing diarrhea of weaned pigs; mixed feeding: 0.5-2g of the medicine is added into every 1kg of the feed of the pigs, and the pigs can be freely fed; the medicine is mixed for drinking, 0.25-1g of the medicine is added into 1L of water, and the medicine is freely drunk.
Example 6 pharmaceutical preparation and use of the invention
(1) Weighing the following raw materials by weight:
80 parts of eucommia bark, 30 parts of semen cuscutae, 25 parts of rhizoma alismatis, 10 parts of citric acid, 1 part of malic acid and 10 parts of vitamin C.
(2) Pulverizing Eucommiae cortex, semen Cuscutae and Alismatis rhizoma, soaking in water for 30min, decocting for 3 times, each for 1.5 hr, mixing filtrates, concentrating to obtain a certain volume (equivalent to 1g/ml of crude drug), adding ethanol until ethanol content in filtrate is 70%, filtering, recovering ethanol from filtrate, adding citric acid, malic acid and vitamin C, mixing, adding appropriate amount of starch and dextrin (or other adjuvants), mixing, and making into extract powder (each 1g is equivalent to 1g of crude drug)
(3) The application method of the medicine comprises the following steps: strengthening the spleen, promoting growth and preventing diarrhea of weaned pigs; mixed feeding: 0.5-2g of the medicine is added into every 1kg of the feed of the pigs, and the pigs can be freely fed; the medicine is mixed for drinking, 0.25-1g of the medicine is added into 1L of water, and the medicine is freely drunk.
Example 7 pharmaceutical preparation and use of the invention
(1) Weighing the following raw materials by weight:
60 parts of eucommia bark, 40 parts of south dodder seed, 15 parts of oriental waterplantain rhizome, 5 parts of citric acid, 2 parts of malic acid and 4 parts of vitamin C.
(2) Mixing the raw materials weighed in the step (1), micronizing, sieving with 200 mesh sieve, mixing well, and making into powder.
(3) The application method of the medicine comprises the following steps: strengthening the spleen, promoting growth and preventing diarrhea of weaned pigs; mixed feeding: the medicine of the invention is added into every 1kg of feed of pigs by 0.5-2g, and the pigs can be freely fed.
Example 8 pharmaceutical preparation and use of the invention
(1) Weighing the following raw materials by weight:
60 parts of eucommia bark, 40 parts of south dodder seed, 10 parts of oriental waterplantain rhizome, 6 parts of citric acid, 2 parts of malic acid and 10 parts of vitamin C.
(2) Pulverizing Eucommiae cortex, semen Cuscutae and Alismatis rhizoma, soaking in water for 30min, decocting for 3 times, each for 1.5 hr, mixing filtrates, concentrating to obtain a certain volume (equivalent to 1g/ml of crude drug), adding ethanol until ethanol content in filtrate is 70%, filtering, recovering ethanol from filtrate, adding citric acid, malic acid and vitamin C, mixing, adding appropriate amount of starch and dextrin (or other adjuvants), mixing, and making into extract powder (each 1g is equivalent to 1g of crude drug)
(3) The application method of the medicine comprises the following steps: strengthening the spleen, promoting growth and preventing diarrhea of weaned pigs; mixed feeding: the medicine of the invention is added into every 1kg of feed of pigs by 0.5-2g, and the pigs can be freely fed.
Example 9 pharmaceutical preparation and use of the invention
(1) Weighing the following raw materials by weight:
80 parts of eucommia bark, 30 parts of semen cuscutae, 20 parts of rhizoma alismatis, 6 parts of citric acid, 2 parts of malic acid and 10 parts of vitamin C.
(2) Pulverizing Eucommiae cortex, semen Cuscutae and Alismatis rhizoma, adding water, soaking for 30min, decocting for 3 times, each time for 1.5 hr, mixing filtrates, concentrating to a certain volume (equivalent to 1g/ml of crude drug), adding ethanol until the ethanol content in the filtrate is 70%, filtering, concentrating to an amount of 0.5g per 1ml of crude drug, adding citric acid, malic acid and vitamin C, filtering, bottling, and sterilizing to obtain oral liquid. (0.5 g per 1ml of crude drug)
(3) The application method of the medicine comprises the following steps: strengthening the spleen, promoting growth and preventing diarrhea of weaned pigs; mixing and drinking: 0.5-2ml of the medicine is added into 1L of water of the pig, and the pig can drink freely.
In order to show the effects of the medicine of the invention on strengthening spleen, promoting growth and preventing diarrhea, clinical curative effect observation tests are carried out on the medicine of the invention, and the beneficial effects of the medicine of the invention are further illustrated by test examples.
Test example 1
In order to verify the curative effect of the medicine, the influence of the medicine on a senna model mouse is investigated in an experimental animal house of the research center of animal health care technology of the great northern agricultural group, and a traditional Chinese medicine preparation for treating the animal spleen deficiency syndrome and promoting the growth is screened by a senna type spleen deficiency modeling method, wherein the experimental result is as follows:
1 materials and methods
1.1 animal model replication
And (3) taking a mouse with the weight of 24-26g, and carrying out gastric lavage by using the water decoction of the senna leaves of 0.3ml/20g for 8 days continuously, wherein the mice are fasted every other day, and the mice have the symptoms of withered and lusterless hair, evacuation, loose stool, weight, physical strength, food consumption reduction, cold intolerance and the like, namely successful model building.
The spleen deficiency animal model standard is as follows: firstly, patients with serious diarrhea even rectocele; ② eating less and anorexia; ③ marasmus and weight loss; metal depression, limb weakness, hair curling, low body temperature and fatigue.
1.2 preparation of test drugs
Extracting the senna leaves: pulverizing folium sennae, decocting in water 16 times for 3 times (each for 1.5 hr), filtering, and concentrating the filtrate to 1 g/ml.
Preparation of test drugs: test drugs were prepared according to pharmaceutical examples 1-5 of the present invention, respectively.
Sijunzi san, made by oneself, mainly made into dangshen, white atractylodes rhizome, licorice root, tuckahoe.
1.3 test grouping and administration
Clean-grade Kunming mice 80 were divided into 8 groups of 10 mice each. Experiment 1 group administered with the drug of the present invention prepared in example 1, with drinking water, 1g of the present invention was added per 1L of water; experiment 2 group administered with the drug prepared in inventive drug example 2, 1g of the drug of the present invention was added per 1L of water; experiment 3 groups administered with the drug prepared in inventive drug example 3, with water, 1g of the drug of the present invention was added per 1L of water; experiment 4 groups administered with the drug prepared in inventive drug example 4, with water, 1g of the drug of the present invention was added per 1L of water; experiment 5 groups of the drugs prepared in inventive drug example 5 were administered with water, 1g of the inventive drug was added per 1L of water; the test 6 groups adopt four-monarch-seed powder, mixed feeding is carried out, and 2g of the four-monarch-seed powder is added into each kilogram of feed; test 7 group is model group; test 8 groups were healthy controls. Continuously performing intragastric administration for 8 days for other administration groups and spleen deficiency model groups except the healthy control group, and drinking distilled water for the healthy control group during molding; after each group had spleen deficiency symptoms, the administration group drunk the test liquid respectively, and continued for 7 days, and the healthy control group and the spleen deficiency and spleen deficiency model group drunk distilled water. The feeding conditions of all groups are consistent.
1.4 examination of body weight and food intake
The feed intake of each group of test animals was recorded daily and each test group was weighed before molding, after molding and at the end of the test.
1.5 statistical methods
Values in each group are expressed as mean. + -. standard deviation
The results show that the comparison among the groups adopts variance analysis, the data of each group are pairwise compared, the significant difference is statistically significant when P is less than 0.05, and all data are statistically processed by adopting PASW Statistics 18.0 edition analysis software.
2 test results and analysis
The mice have loose stool and lose weight next day after the gastric lavage and the water decoction of the senna leaves, and then have spleen deficiency states of crinkling, aversion to cold, piloerection, slight temperature drop, reduced activity and the like. The condition is recovered after the treatment of the medicine and the four-monarch-drug powder, which is close to a normal group, but the recovery of a model group is not obvious. The death and weight gain during the mouse trial are shown in table 1.
TABLE 1 test results of the effect of the drug of the present invention on weight gain in spleen deficient mice
Note: the weight gain of the test groups 1-5, the Sijunzi san group and the model group is 0.000, 0.003, 0.000, 0.002, 0.229, 0.000 and 0.000 respectively compared with the healthy group; compared with the model group, the p values of the test group 1-5 and the Sijunzi san group are respectively 0.000, 0.000 and 0.038; compared with the four-monarch powder group, the p values of the test groups 1-5 are 0.016, 0.001, 0.010, 0.001 and 0.000.
The test results show that compared with the model group, each test group of the medicament can remarkably improve the weight gain of mice (P <0.01), and the effect of the medicament in the aspect of weight gain is remarkably superior to that of the control medicament Sijunzi san (P < 0.05). The drug test 5 group has the best weight gain effect on mice with spleen deficiency syndrome, and is higher than other drug test groups and control drug Sijunzi san groups.
Test example 2
In order to verify the curative effect of the medicine, the research center of animal health care technology of northern Yangtze farm in Hebei province verifies the growth promoting effect test of the medicine on the weaned pig, and the test results are as follows:
1 materials and methods
1.1 test animals
The Duda Bai ternary hybrid is used for weaning piglets for 28 days.
1.2 feed and drugs
Feed: is a conservation material produced by certain feed science and technology limited liability company.
Test drugs: prepared according to the invention as pharmaceutical example 6.
Control drug 1: pulverizing 80 parts of eucommia bark, 30 parts of semen cuscutae and 25 parts of rhizoma alismatis, adding water to soak the medicinal materials for 30min, decocting for 3 times, 1.5 hours each time, combining the filtrates, concentrating to a certain volume (equivalent to 1g/ml of the original medicine), adding ethanol until the ethanol content in the filtrate is 70%, filtering, recovering ethanol from the filtrate, adding a proper amount of starch and dextrin, fully mixing uniformly, and preparing into extract powder (each 1g of the extract powder is equivalent to 1g of the original medicine).
Control drug 2: taking 10 parts of citric acid and 1 part of malic acid, and mixing uniformly for later use as a control medicament 2.
Control drug 3: and (3) vitamin C.
Control drug 4: a contrast medicament 4 is prepared according to the prescription of 80 parts of eucommia bark, 30 parts of semen cuscutae, 25 parts of rhizoma alismatis, 10 parts of citric acid and 1 part of malic acid. Pulverizing Eucommiae cortex, semen Cuscutae and Alismatis rhizoma, adding water, soaking for 30min, decocting for 3 times, each time for 1.5 hr, mixing filtrates, concentrating to a certain volume (equivalent to 1g/ml of crude drug), adding ethanol until the ethanol content in the filtrate is 70%, filtering, recovering ethanol from the filtrate, adding citric acid and malic acid, mixing, adding appropriate amount of starch and dextrin, mixing completely, and making into extract powder (each 1g is equivalent to 1g of crude drug).
Control drug 5: preparing a control medicament 5 according to the prescription of 80 parts of eucommia bark, 30 parts of semen cuscutae, 25 parts of rhizoma alismatis and 10 parts of vitamin C. Pulverizing Eucommiae cortex, semen Cuscutae and Alismatis rhizoma, soaking in water for 30min, decocting for 3 times, each for 1.5 hr, mixing filtrates, concentrating to obtain a certain volume (equivalent to 1g/ml of crude drug), adding ethanol until the ethanol content in the filtrate is 70%, filtering, recovering ethanol from the filtrate, adding vitamin C, mixing, adding appropriate amount of starch and dextrin, mixing, and making into extract powder (each 1g is equivalent to 1g of crude drug).
Control drug 6: taking 10 parts of citric acid, 1 part of malic acid and 10 parts of vitamin C, and mixing uniformly to obtain a control drug 6.
Control drug 7: preparing a control medicament 5 according to the prescription of 80 parts of eucommia bark, 30 parts of semen cuscutae, 25 parts of rhizoma alismatis, 11 parts of fumaric acid and 10 parts of vitamin C. Pulverizing Eucommiae cortex, semen Cuscutae and Alismatis rhizoma, adding water, soaking for 30min, decocting for 3 times, each time for 1.5 hr, mixing filtrates, concentrating to a certain volume (equivalent to 1g/ml of crude drug), adding ethanol until the ethanol content in the filtrate is 70%, filtering, recovering ethanol from the filtrate, adding fumaric acid and vitamin C, mixing, adding appropriate amount of starch and dextrin, mixing completely, and making into extract powder (each 1g is equivalent to 1g of crude drug).
1.3 test grouping
540 weaned piglets are randomly divided into 9 groups, the test 1 group is a test drug group, 1g of the drug prepared in the 6 examples of the drug is added into 1kg of feed, mixed feeding is carried out, and the drug is continuously fed for 28 days; in the group 1 of the control drugs, 1g of the control drug 1 is added into 1kg of feed, mixed feeding is carried out, and the drug administration is carried out continuously for 28 days; in the group 2 of the control medicaments, 1g of the control medicament 2 is added into each 1kg of feed, mixed feeding is carried out, and the continuous feeding is carried out for 28 days; in the 3 groups of the control drugs, 1g of the control drug 3 is added into each 1kg of feed, mixed feeding is carried out, and the drug administration is carried out continuously for 28 days; in the 4 groups of the control medicaments, 1g of the control medicament 4 is added into each 1kg of feed, mixed feeding is carried out, and the continuous administration is carried out for 28 days; in the 5 groups of the control drugs, 1g of the control drug 5 is added into each 1kg of feed, mixed feeding is carried out, and the drug administration is carried out continuously for 28 days; in the 6 groups of the control drugs, 1g of the control drug 6 is added into each 1kg of feed, mixed feeding is carried out, and the drug administration is carried out continuously for 28 days; adding 1g of the control medicament 7 into 1kg of feed in 7 groups of the control medicaments, and carrying out mixed feeding administration for 28 days continuously; the feed of the blank control group is not added with any medicine.
1.4 survey index
The abdomen was weighed at 28 days old and at 7 am at 56 days old, and piglets were observed and recorded for feeding, body condition, hair color, behavior, defecation, diarrhea, etc.
2 test results and analysis
The weight gain of piglets is shown in table 2.
TABLE 2 piglet weight gain test results
The test results show that, compared with the blank control group, the test drugs and the control drugs 1 to 7 have good growth promoting effects on piglets, wherein the test drug prepared according to the drug example 6 of the invention has the best growth promoting effect. The effect of the drug prepared according to the drug embodiment 6 of the present invention on piglet growth promotion is better than that of the control drug 1 (3 traditional Chinese medicine compositions such as eucommia ulmoides, semen cuscutae and rhizoma alismatis are used alone) or the control drug 2 (citric acid and malic acid composition used alone) or the control drug 3 (vitamin C used alone), and is also better than that of the control drug 4 (eucommia ulmoides, semen cuscutae, rhizoma alismatis, citric acid and malic acid composition) or the control drug 5 (eucommia ulmoides, semen cuscutae, rhizoma alismatis and vitamin C composition) and is also better than that of the control drug 6 (citric acid, malic acid and vitamin C composition), which indicates that the combined use of the eucommia ulmoides, semen cuscutae and rhizoma alismatis, the citric acid, malic acid and vitamin C has a synergistic. The effect of the drug prepared according to drug example 6 of the present invention on promoting growth of piglets is better than that of the control drug 7, which indicates that citric acid and malic acid used in the present invention are the best choice and should not be replaced by other acidulants.
Test example 3
In order to further verify the growth promotion effect of the medicament on the weaned piglets, a comparative test is carried out in a certain test pig farm in Huanghai and hai in Hubei by the research center of animal health technology of agricultural groups in North China, and the test results are as follows:
1 materials and methods
1.1 test animals
And (5) growing the Du-growing triply-hybridized 28-day weaned piglets.
1.2 feed and drugs
Feed: a conservation material produced by certain feed science and technology limited liability company;
test drugs: prepared according to the invention as pharmaceutical example 7.
Control drugs: 4% flavomycin premix
1.3 test grouping
300 weaned piglets for 28 days are randomly divided into 3 groups, the test 1 group is a test drug group, 1k g prepared according to the invention in the drug embodiment 7 is added into each 1 ton of feed, and the mixed feeding and the drug administration are carried out for 28 days; the test 2 group is a control drug group, 125g of 4% flavomycin premix is added into each 1 ton of feed, and mixed feeding and drug administration are carried out for 28 days continuously; the test 3 group was a blank control group, and no drug was added to the feed.
1.4 survey index
The abdomen was weighed at 28 days old and at 7 am at 56 days old, and piglets were observed and recorded for feeding, body condition, hair color, behavior, defecation, diarrhea, etc.
2 test results and analysis
The weight gain of piglets is shown in table 3.
TABLE 3 piglet weight gain test results
The results of the piglet diarrhea prevention test are shown in table 4.
TABLE 4 piglet diarrhea prevention test results
Group of
|
Death number (head)
|
Diarrhea digital (head)
|
Diarrhea Rate (%)
|
Test 1 group
|
0
|
0
|
0
|
Test 2 groups
|
1
|
2
|
2
|
Test 3 groups
|
3
|
15
|
15 |
The test results show that compared with a blank control group, the test drug and the control drug have good growth promoting effect and piglet diarrhea prevention effect, and the growth promoting effect and the diarrhea prevention effect of the drug are obviously superior to those of the antibacterial growth promoting control drug flavomycin. During the test period, the pigs were healthy well, indicating that the drug of the invention is safe and can be added for a long time.
Test example 4
To further verify the growth promoting effect of the medicament on the growing-finishing pigs, the research center of animal health care technology of the northern agricultural group carries out a comparative test in a test pig farm of Zhu Dong Zhu city, and the test results are as follows:
1 materials and methods
1.1 test animals
Growing fattening pigs of 70 days old by three-way hybridization.
1.2 feed and drugs
Feed: the fertilizer is a growth fertilizer produced by certain feed science and technology limited liability company;
test drugs: prepared according to the invention as pharmaceutical example 8.
1.3 test grouping
Randomly dividing 200 growing-finishing pigs of 70 days old into 2 groups, wherein the test 1 group is a test drug group, 0.5kg of the drug prepared in the drug example 8 is added into each 1 ton of feed, and the drug is mixed and administered for 28 days; the test 2 group was a blank control group, and no drug was added to the feed.
1.4 survey index
The abdomen of each group was weighed at 70 days old and 98 days old at 7 am, and the condition of ingestion, body condition, hair color, behavior, defecation, diarrhea, etc. of the pigs were observed and recorded.
2 test results and analysis
The weight gain of growing-finishing pigs is shown in Table 5.
TABLE 5 growth promoting test results for growing-finishing pigs
The test result shows that compared with a blank control group, the test medicament has good growth promoting effect on growing-finishing pigs. During the test period, the pigs were healthy well, indicating that the drug of the invention is safe and can be added for a long time.
Test example 5
In order to verify the curative effect of the medicine, the research center of animal health care technology of northern great agriculture group verifies the prevention effect of the medicine on the diarrhea of weaned piglets in certain test pig farm of Tianjin Diwu, and the results are as follows:
1 materials and methods
1.1 test animals
The three-element miscellaneous piglet, Duda Bai, has 20 litters, 9-l 2 litters and 209 litters. The difference of the date of birth of the experimental piglets is not more than 2 days, the weight and the number of births are similar, the sex proportion is consistent, and the sow has no disease history.
1.2 feed and drugs
Feed: granular feed for porket produced by certain feed science and technology Limited liability company;
test drugs: prepared according to the invention as pharmaceutical example 9.
1.3 test grouping
The 20 litter piglets were randomly divided into a test group (10 litter 103) and a control group (10 litter 106). Both the test group and the control group were weaned at 28 days of age. The test group was administered from the beginning of 21 days old to 3 weeks (49. sup. th.) after weaning with 1kg of the drug prepared in accordance with pharmaceutical example 9 of the present invention per ton of the feed, and the control group was administered without any drug.
1.4 survey index
The test group and the control group are respectively weighed at the time and space of 21 days old, 28 days old, 35 days old, 42 days old and 49 days old 7 am, and the feed input amount of each group per day and the feed residual amounts of 28 days old, 35 days old, 42 days old and 49 days old are recorded from 21 days old. The dung excretion status of the piglets is observed and recorded one by one at 7 hours and 20 hours each day from the age of 28 days.
1.5 data statistics
And (4) counting the feed intake before and after weaning of the piglets, the average weight before weaning, the weight gain of the piglets, the feed-weight ratio, the number of dead piglets after weaning, the number of diarrhea piglets, the diarrhea rate and the diarrhea frequency. All data were statistically processed using PASW Statistics version 18.0 analysis software and subjected to significance analysis.
Diarrhea rate is the number of diarrhea heads/total number of diarrhea heads
Diarrhea frequency ═ diarrhea first/(number of heads per group × number of days post-weaning test)
2 results of the test
2.1 diarrhea preventing Effect
As can be seen from table 6: the test group died 1, the control group died 5, and the difference between the two groups was significant (P < 0.05); the diarrhea of the test group is 34, the diarrhea of the control group is 59, and the difference between the two groups is significant (P < 0.05); the diarrhea rate of the test group is 33.0 percent, the diarrhea rate of the control group is 55.7 percent, and the difference between the two groups is obvious (P is less than 0.05); the diarrhea frequency of the test group is 1.57, the diarrhea frequency of the control group is 2.65, and the difference between the two groups is significant (P < 0.05).
TABLE 6 preventive effect of the inventive drug on diarrhea of weaned piglets
Group of
|
Death number (head)
|
Diarrhea digital (head)
|
Diarrhea Rate (%)
|
Diarrhea frequency (%)
|
Test group
|
1
|
34
|
33.0
|
1.57
|
Control group
|
5
|
59
|
55.7
|
2.65 |
2.2 feed intake
As can be seen from table 7: the difference of the feed intake of the 21-28-day-old test group and the control group is not obvious; after 28 days of age, the food intake of the test group is obviously higher than that of the control group, and the difference is obvious (P < 0.05).
TABLE 7 daily food intake (kg)
Group of
|
21-28 days old
|
28-35 days old
|
35-42 days old
|
Age of 42-49 days
|
Test group
|
0.52
|
0.66
|
0.86
|
1.03
|
Control group
|
0.53
|
0.62
|
0.79
|
0.88 |
2.3 weight gain Effect
As can be seen from table 8: the average body weight difference between the test group and the control group is not significant at the age of 21-28 days; compared with a control group, the average weight of piglets in the test group after 28-mesh age is obviously improved.
TABLE 8 average body weight (kg) at each day's age
Group of
|
Age of 21 days
|
Age of 28 days
|
Age of 35 days
|
Age of 42 days
|
Age 49 days old
|
Test group
|
5.35
|
7.67
|
10.91
|
13.79
|
18.31
|
Control group
|
5.33
|
7.42
|
10.58
|
12.65
|
15.53 |
2.4 feed conversion ratio
As can be seen from table 9: the material weight ratio of the test group after weaning is obviously lower than that of the control group, which indicates that the feed conversion rate of the test group is higher than that of the control group.
TABLE 9 feed weight ratio for each age of day
Group of
|
21-28 days old
|
28-35 days old
|
35-42 days old
|
Age of 42-49 days
|
Test group
|
1.77
|
1.61
|
1.99
|
1.58
|
Control group
|
1.65
|
1.77
|
2.73
|
1.83 |
Discussion of 3
Indexes such as the number of heads of diarrhea, diarrhea rate, diarrhea frequency and the like are adopted to investigate the diarrhea degree, the difference between a test group and a control group is obvious, and the result can objectively reflect the good effect of the medicine on preventing the diarrhea of the weaned piglets.
The piglet has larger stress and is easy to cause diarrhea and induce other diseases due to the drastic change of the feeding environment and the feeding conditions within 2 weeks after the piglet is weaned, so the daily gain and the feed conversion rate are reduced. In this growth stage, piglets are susceptible to diseases, and should be kept under increased management to minimize stress.
The medicine is added into the piglet feed 1 week before weaning, so that the piglet constitution can be improved, the resistance to weaning stress is enhanced, the harm of piglet diarrhea is reduced, and the piglet growth is promoted.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.