CN111436533A - Growth obstacle reducing feed additive for piglets and preparation and application thereof - Google Patents
Growth obstacle reducing feed additive for piglets and preparation and application thereof Download PDFInfo
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Abstract
The invention discloses a feed additive for reducing growth disorder for piglets and a preparation method thereof, wherein the feed additive comprises compound Chinese herbal medicine powder and fermented Chinese herbal medicine powder which are mixed in a ratio of (1-3) to 1; wherein the compound Chinese herbal medicine powder comprises the following raw materials: codonopsis pilosula, fried hawthorn, Chinese yam, white paeony root, sealwort, areca seed, Chinese angelica, liquorice, fried spina date seed, purslane, houttuynia cordata, malt powder and rhubarb; the fermented Chinese herbal medicine powder is prepared from the following raw materials: astragalus root dregs, poplar flower dregs, corn flour, bran and a compound leavening agent. The feed additive can reduce the stress and oxidation level in the bodies of piglets, improve the disease resistance, and ensure the integrity of intestinal tracts and the normal absorption and metabolism of nutrients required by growth.
Description
Technical Field
The invention belongs to the technical field of feed additives, and particularly relates to a growth obstacle reducing feed additive for piglets and a preparation method and application thereof.
Background
The weaning of piglets is an important link in the pig raising production, and many pig farmers reflect that the piglets are transferred into a nursing house during weaning and have different degrees of piglet growth obstacles (also called falling pigs and cad pigs) in a period of time later, so that the proportion of the falling pigs of the piglets in the nursing house is always increased. Along with the continuous improvement of the reproductive performance of the pig breeds in China and the assembly line type continuous turnover production of a large-scale pig farm, the personnel management fineness is not enough, and the problem of piglet growth obstacle is more and more prominent. The growth disorder of piglets is mostly found in weaned-20 kg piglets, and the clinical manifestations are as follows: coarse and disorganized fur, thin and small physique, round belly, sharp buttock, cerebral sack, arch back and abdomen contracting, eating the piglet only for a short time, the average daily gain is less than 50 g (the average daily gain of healthy piglets at the stage can reach 330 g), and the average daily gain reaches 20 kg at the end of 6 months in some cases.
The growth disorder of piglets is caused by many reasons, including physiological characteristics, immune state, stress response and the like of piglets, but weaning stress is one of the most important causes. The number of live piglets produced by sows is high by the existing breeding means, the uniformity of piglets is poor under the condition that the breast milk capacity of sows cannot keep up with the capacity, in addition, the piglets are stressed and are too much after weaning, weaning leaves away from a mother body, immunity injection is carried out, the feed quality is poor after weaning, the nutrition level cannot reach the feeding standard, grouping is not timely or unreasonable after weaning, big and small deception and strong and weak deception are caused, the piglets cannot eat the feed, hunger is caused for a long time, and intestinal injury is caused. The piglet has poor constitution during weaning, the piglet does not eat or drink water, management means such as heat preservation and ventilation measures are not in place, comprehensive factors cause the absorption of intestinal tracts of the piglet and the damage of immune function, and simultaneously bacterial and virus infection can be caused simultaneously, the factors cause physiological dysfunction and growth obstacle of the piglet, the growth potential of the piglet in the later period can not be brought into genetic play, the marketing time is prolonged, the production cost of a pig farm is directly improved, and the piglet can be in an unfavorable position in the competition of the industry for the production cost in the next few years. Therefore, the urgent need of animal husbandry is to reduce the growth rate of piglets with growth obstacles in the nursery house and increase the overall growth rate of the swinery by some technical means and directly improve the production performance and the breeding benefit of the pig farm.
The Chinese herbal medicine formula has become one of the development directions for preventing and treating partial diseases due to the characteristics of nature, no medicine residue and the like, and a plurality of effectiveness tests are also obtained in the field practice of pig farms.
Disclosure of Invention
The invention provides a feed additive for piglets, which can promote the weaning growth of the piglets and reduce the stress reaction of the piglets caused by weaning; the invention also provides a preparation method and application of the feed additive.
The invention adopts the following technical scheme:
a feed additive for piglets for reducing growth disorder comprises compound Chinese herbal medicine powder and fermented Chinese herbal medicine powder at a mixing ratio of (1-3) to 1;
the compound Chinese herbal medicine powder comprises the following raw materials in parts by weight: 10-14 parts of codonopsis pilosula, 10-12 parts of fried hawthorn, 9-12 parts of Chinese yam, 9-13 parts of white paeony root, 4-7 parts of sealwort, 5.5-7 parts of betel nut, 5-7 parts of angelica, 5-6.5 parts of liquorice, 5.5-6.5 parts of fried spina date seed, 5.5-6.5 parts of purslane, 5-7 parts of houttuynia cordata, 5-7 parts of malt powder and 4-6 parts of rhubarb; the fermented Chinese herbal medicine powder is prepared from the following raw materials in parts by weight: 40 parts of astragalus mongholicus dregs, 35 parts of poplar flower dregs, 15 parts of corn flour, 10 parts of bran and 0.05 part of composite leavening agent.
The poplar flower dregs used in the invention are prepared by drying solid residues obtained after 2 hours of alkaline aqueous solution extraction.
The compound Chinese herbal medicine powder additive also comprises a feed-grade sweetener and/or an excipient. Wherein the feed grade sweetener can be selected from one or more of stevioside, molasses, aspartame, and hesperidin dihydrochalcone commonly used in the field; the excipient is selected according to the allowable types in the feed additive industry.
Furthermore, the compound leaven contains more than or equal to 50 hundred million/g of lactobacillus plantarum, more than or equal to 30 hundred million/g of bacillus subtilis, more than or equal to 30 hundred million/g of bacillus licheniformis and more than or equal to 500U/g of feeding cellulase.
The preparation method of the feed additive for reducing the growth disorder of the piglets comprises the following steps:
1) dissolving 0.05 part of composite leaven in water to obtain a composite leaven solution, uniformly mixing 40 parts of astragalus residue, 35 parts of poplar flower residue, 15 parts of corn flour, 10 parts of bran and the composite leaven solution, and performing anaerobic fermentation at 32-38 ℃ for 34-36 hours to obtain fermented Chinese herbal medicine;
2) drying the fermented Chinese herbal medicine obtained in the step 1) at a temperature of not higher than 45 ℃, drying until the weight percentage of the water is 8.5-10%, and crushing to obtain fermented Chinese herbal medicine powder;
3) mixing the compound Chinese herbal medicine powder and the fermented Chinese herbal medicine powder obtained in the step 2) according to the proportion of (1-3) to 1, and obtaining the Chinese herbal medicine feed additive for reducing the growth disorder for the piglets.
Further, the preparation method of the compound Chinese herbal medicine powder in the step 3) comprises the following steps: 10-14 parts of codonopsis pilosula, 10-12 parts of fried hawthorn, 9-12 parts of Chinese yam, 9-13 parts of white paeony root, 4-7 parts of rhizoma polygonati, 5.5-7 parts of betel nut, 5-7 parts of angelica, 5-6.5 parts of liquorice, 5.5-6.5 parts of fried spina date seed, 5.5-6.5 parts of purslane, 5-7 parts of houttuynia cordata, 5-7 parts of malt powder and 4-6 parts of rhubarb are respectively crushed to 300 meshes and then mixed to obtain the composite Chinese herbal medicine powder.
Further, the water content of the fermented Chinese herbal medicines in the step 1) before fermentation is controlled to be 44-46% by weight.
Further, the grain size of the corn flour in the step 1) is 1.5mm, and the grain size of the fermented Chinese herbal medicine in the step 2) is 80-100 meshes.
The feed additive for reducing growth disturbance for the piglets is added in a proportion of 0.5 percent of complete formula feed to prevent the growth disturbance of the weaned piglets in a large group. The application of the feed additive for reducing the growth disturbance for the piglets is to add 0.9 percent of complete formula feed to feed the nursery piglets showing the growth disturbance signs.
Has the advantages that:
the superfine powder of the composite Chinese herbal medicine and the dregs of the decoction after the extraction of the composite Chinese herbal medicine are fermented and the composite is dried at a low temperature are taken as main components, so that the oxidative stress level in piglets is reduced, and the normal digestion, absorption and metabolism of nutrients by intestinal tracts of the piglets are restored or promoted.
Because the development of body organs of piglets is immature, the physiological function is fragile, the piglet stress is easily caused by the change of factors such as feeding mode or environment, the expressed physiological and biochemical indexes are that the serum cortisol is rapidly increased, so that the loss of functions of body intestines and the like, poor health degree and poor growth are caused, and therefore, the product has the action mode of mainly reducing the level of the serum cortisol. One of the key points of the compound Chinese herbal medicine is that the phenolic substances contained in the Chinese herbal medicine in the invention have the effects which cannot be achieved by conventional antioxidants (such as VE and VC), and the content of serotonin is increased, so that the secretion of cortisol is inhibited, and the physiological functions of piglets, particularly the body functions and the growth characteristics of intestinal tracts are recovered.
Detailed Description
In the following examples, codonopsis pilosula, fried hawthorn, dioscorea opposita thumb, white paeony root, sealwort, areca nut, angelica, liquorice, fried spina date seed, purslane, houttuynia cordata thumb, malt powder and rhubarb are all commercially available Chinese herbal medicines; the feed grade sweetener is a commercial product, such as one or more of stevioside, molasses, aspartame and hesperidin dihydrochalcone; the composite leaven is VP100 feeding composite enzyme of Wuhan Xinhuayangyang biological member GmbH, wherein the lactobacillus plantarum is more than or equal to 50 hundred million/g, the bacillus subtilis is more than or equal to 30 hundred million/g, the bacillus licheniformis is more than or equal to 30 hundred million/g, and the feeding cellulase is more than or equal to 500U/g.
Example 1
A preparation method of a feed additive for reducing growth disorder for piglets comprises the following steps:
1) crushing the following raw materials in parts by weight to prepare an intermediate product for later use:
14 parts of codonopsis pilosula, 12 parts of fried hawthorn, 9 parts of Chinese yam, 9 parts of white paeony root, 6 parts of rhizoma polygonati, 6 parts of betel nut, 6 parts of angelica, 6 parts of liquorice, 6 parts of fried spina date seed, 6 parts of purslane, 6 parts of houttuynia cordata, 6 parts of malt powder, 5 parts of rheum officinale and 3 parts of stevioside. The raw materials are purchased according to the Chinese medicinal material standard, are subjected to superfine grinding to 300 meshes, mixing and sieving, and are uniformly mixed to prepare the composite Chinese medicinal powder.
2) Uniformly mixing 40% of astragalus mongholicus dregs, 35% of poplar flower dregs, 15% of corn flour (1.5mm), 10% of bran (not crushed) and 0.05% of compound leavening agent in a special wet material mixer according to the mass ratio, filling the mixture into a container, performing anaerobic fermentation, controlling the initial moisture within 44-46% to meet the quality technical requirements, controlling the fermentation temperature to be 32-38 ℃ to not influence the quality effect, controlling the fermentation temperature to be not more than 38 ℃ in production, and finishing the fermentation working section after fermenting for 34-36 hours.
3) Drying the fermented product obtained in the step 2) by hot air at a low temperature, wherein the temperature of the outlet material is not more than 45 ℃, the moisture of the dried finished product is controlled to be 8.5-10%, and crushing by a crusher to 80 meshes to obtain fermented Chinese herbal medicine powder;
4) uniformly mixing the composite Chinese herbal medicine powder prepared in the step 1) and the fermented Chinese herbal medicine powder prepared in the step 3) according to the mass ratio of 2: 1, packaging and sealing to prepare the growth obstacle reduction feed additive for the piglets.
The use method of the feed additive prepared in the step 4) is as follows: for the nursery piglets which show the signs of growth disturbance, the piglets can be raised in a concentrated field and fed with 0.9 percent of complete formula feed on the spot of a pig farm; for preventing the growth disorder/falling of large groups of weaned piglets, the feed is added in a proportion of 0.5 percent of complete formula feed on a pig farm site.
Example 2
A preparation method of a feed additive for reducing growth disorder for piglets comprises the following steps:
1) crushing the following raw materials in parts by weight to prepare an intermediate product for later use:
10 parts of codonopsis pilosula, 10 parts of fried hawthorn, 12 parts of Chinese yam, 13 parts of white paeony root, 4 parts of rhizoma polygonati, 5.5 parts of betel nut, 5 parts of angelica, 6.5 parts of liquorice, 5.5 parts of fried spina date seed, 6.5 parts of purslane, 5 parts of houttuynia cordata, 7 parts of malt powder, 6 parts of rheum officinale and 4 parts of aspartame. The raw materials are purchased according to the Chinese medicinal material standard, are subjected to superfine grinding to 300 meshes, mixing and sieving, and are uniformly mixed to prepare the composite Chinese medicinal powder.
2) Uniformly mixing 40% of astragalus mongholicus dregs, 35% of poplar flower dregs, 15% of corn flour (1.5mm), 10% of bran (not crushed) and 0.05% of compound leavening agent in a special wet material mixer according to the mass ratio, filling the mixture into a container, performing anaerobic fermentation, controlling the initial moisture within 44-46% to meet the quality technical requirements, controlling the fermentation temperature to be 32-38 ℃ to not influence the quality effect, controlling the fermentation temperature to be not more than 38 ℃ in production, and finishing the fermentation working section after fermenting for 34-36 hours.
3) Drying the fermented product obtained in the step 2) by hot air at a low temperature, wherein the temperature of the outlet material is not more than 45 ℃, the moisture of the dried finished product is controlled to be 8.5-10%, and crushing by a crusher to 80 meshes to obtain fermented Chinese herbal medicine powder;
4) uniformly mixing the compound Chinese herbal medicine powder prepared in the step 1) and the fermented Chinese herbal medicine powder prepared in the step 3) according to the mass ratio of 2: 1, packaging and sealing to prepare the feed additive for reducing the growth obstacle for the piglets.
The method for using the feed additive prepared in the step 4) is the same as that of the example 1.
Example 3
A preparation method of a feed additive for reducing growth disorder for piglets comprises the following steps:
1) crushing the following raw materials in parts by weight to prepare an intermediate product for later use:
12.5 parts of codonopsis pilosula, 11 parts of fried hawthorn, 10 parts of Chinese yam, 10 parts of white paeony root, 6.25 parts of rhizoma polygonati, 6.25 parts of betel nut, 6.25 parts of angelica, 6.25 parts of liquorice, 6.25 parts of fried spina date seed, 6.25 parts of purslane, 6.25 parts of houttuynia cordata, 6.25 parts of malt powder, 4 parts of rheum officinale and 2.5 parts of molasses. The raw materials are purchased according to the Chinese medicinal material standard, are subjected to superfine grinding to 300 meshes, mixing and sieving, and are uniformly mixed to prepare the composite Chinese medicinal powder.
2) Uniformly mixing 40% of astragalus mongholicus dregs, 35% of poplar flower dregs, 15% of kami powder (1.5mm), 10% of bran (not crushed) and 0.05% of compound leavening agent in a special wet material mixer according to the mass ratio, filling the mixture into a container, performing anaerobic fermentation, controlling the initial moisture within 44-46% to meet the quality technical requirements, controlling the fermentation temperature to be 32-38 ℃ to not influence the quality effect, controlling the fermentation temperature to be not more than 38 ℃ in production, and finishing the fermentation working section after fermenting for 34-36 h.
3) Drying the fermented product obtained in the step 2) by hot air at a low temperature, wherein the temperature of the outlet material is not more than 45 ℃, the moisture of the dried finished product is controlled to be 8.5-10%, and crushing by a crusher to 100 meshes to obtain fermented Chinese herbal medicine powder;
4) uniformly mixing the compound Chinese herbal medicine powder prepared in the step 1) and the fermented Chinese herbal medicine powder prepared in the step 3) according to the mass ratio of 2: 1, packaging and sealing to prepare the feed additive for reducing the growth obstacle for the piglets.
The method for using the feed additive prepared in the step 4) is the same as that of the example 1.
Example 4
A preparation method of a feed additive for reducing growth disorder for piglets comprises the following steps:
1) crushing the following raw materials in parts by weight to prepare an intermediate product for later use:
14 parts of codonopsis pilosula, 12 parts of fried hawthorn, 9 parts of Chinese yam, 9 parts of white paeony root, 6.8 parts of rhizoma polygonati, 6.8 parts of betel nut, 6.8 parts of angelica, 5 parts of liquorice, 6.5 parts of fried spina date seed, 5.5 parts of purslane, 6.8 parts of houttuynia cordata, 5 parts of malt meal, 4.5 parts of rheum officinale and 2.3 parts of hesperidin dihydrochalcone. The raw materials are purchased according to the Chinese medicinal material standard, are subjected to superfine grinding to 300 meshes, mixing and sieving, and are uniformly mixed to prepare the composite Chinese medicinal powder.
2) Uniformly mixing 40% of astragalus mongholicus dregs, 35% of poplar flower dregs, 15% of corn flour (1.5mm), 10% of bran (not crushed) and 0.05% of compound leavening agent in a special wet material mixer according to the mass ratio, filling the mixture into a container, performing anaerobic fermentation, controlling the initial moisture within 44-46% to meet the quality technical requirements, controlling the fermentation temperature to be 32-38 ℃ to not influence the quality effect, controlling the fermentation temperature to be not more than 38 ℃ in production, and finishing the fermentation working section after fermenting for 34-36 hours.
3) Drying the fermented product obtained in the step 2) by hot air at a low temperature, wherein the temperature of the outlet material is not more than 45 ℃, the moisture of the dried finished product is controlled to be 8.5-10%, and crushing by a crusher to 100 meshes to obtain fermented Chinese herbal medicine powder;
4) uniformly mixing the compound Chinese herbal medicine powder prepared in the step 1) and the fermented Chinese herbal medicine powder prepared in the step 3) according to the mass ratio of 2: 1, packaging and sealing to prepare the feed additive for reducing the growth obstacle for the piglets.
The method for using the feed additive prepared in the step 4) is the same as that of the example 1.
[ Experimental examples ]
The test examples of the invention are all completed in 2 research and development pig farms that the invention unit belongs to.
[ test example one ] the product of the present invention has a preventive effect on newly-weaned piglets
In the test example, the adding proportion of the product of the invention in the complete feed is 0.5%.
15 weaned piglets of 27 days old are selected, weighed on an empty stomach in the morning on the weaning day, the average weight of the piglets in the groups is ensured to be consistent, the piglets are divided into five groups, each group has 3 repetitions, 13-14 piglets are repeated (the initial weight difference of the piglets among the groups is not obvious), and the basic complete formula feed is the creep feed complete feed produced by the invention unit (the nutrition parameters are shown in the following table 1). Before the test is finished and weighed, the forecaval veins of the piglets are used for collecting blood, 4 piglets are collected for each group, the average value of the cortisol content is determined by adopting a kit purchased by Beijing Ke Meidong ya biotechnology company, and the test is carried out by taking nest as a unit for data statistics. The control group was fed with the creep complete feed alone, and examples 1 to 4 were added to the creep complete feed at a ratio of 0.5%, and the results of comparing the effects of the examples and the control group are shown in Table 2.
TABLE 1 nutritional parameters of basal diets in this round of testing
TABLE 2 comparison of the results of the examples and the control group
Remarking: the judgment basis of the fallen pigs is as follows: average daily gain is less than 50 g.
The results of the test example show that the number of pigs falling behind can be reduced by 72% on average by adding the feed additive disclosed by the invention aiming at 7-10kg (fed with creep feed 12d) of piglets, and the daily gain of other piglets is increased by 23%. At the same time, the serum cortisol levels of examples 1-4 were greatly reduced. In comparison, the compatibility of the Chinese herbal medicines in example 3 is the best.
[ test example II ] the product of the present invention has a preventive effect on piglets at the middle and late stages of nursing
In the test example, the adding proportion of the product of the invention in the complete feed is 0.5%.
15 circles of weaned piglets in the same batch are selected in a nursery house, the average weight of the piglets in the same batch is ensured to be consistent, the piglets are divided into five groups, each group has 3 repetitions, 10-12 piglets are repeated (the initial weight difference of the piglets among the groups is not obvious), and the basic complete formula feed is the later-stage complete feed for the nursery piglets produced by the invention unit (the nutrition parameters are shown in the following table 3). Before the test is finished and weighed, the forecaval veins of the piglets are used for collecting blood, 4 piglets are collected for each group, the average value of the cortisol content is determined by adopting a kit purchased by Beijing Ke Meidong ya biotechnology company, and the test is carried out by taking nest as a unit for data statistics. The control group is only fed with the later-stage complete feed of the nursery piglets, the examples 1-4 are added into the later-stage complete feed of the nursery piglets in a proportion of 0.5%, and the effect comparison results of the examples and the control group are shown in the table 4.
TABLE 3 nutritional parameters of basal diets in this round of testing
TABLE 4 comparison of the results of the examples and the control group
Remarking: the judgment basis of the fallen pigs is as follows: average daily gain is less than 50 g.
The results of the test example show that the number of pigs falling behind can be reduced by 75% on average by adding the feed additive provided by the invention aiming at 11-18kg (fed with the conservation full-value granular feed 15d) of piglets, and the daily gain of other piglets is increased by 16%. At the same time, the serum cortisol levels of examples 1-4 were greatly reduced. In comparison, the compatibility of the Chinese herbal medicines in example 3 is the best.
[ test example III ] the product of the invention has the effect of preventing piglets in the nursery stage
In the test example, the adding proportion of the product of the invention in the complete feed is 0.5%.
15 rings of piglets which are transferred to the same batch and are close to the age of the piglets are selected in a nursery house, the average weight is ensured to be consistent, the piglets are divided into five groups, each group has 3 repetitions, each repetition is 10-12 piglets (the initial weight difference of the piglets among the groups is not obvious), the basic ration is a complete feed prepared from 25 percent of the concentrated nursery feed (corn 61 percent, bean pulp 14 percent, concentrated feed 25 percent, and the nutritional parameters of the complete feed are shown in the following table 5). Before the test is finished and weighed, the forecaval veins of the piglets are used for collecting blood, 4 piglets are collected for each group, the average value of the cortisol content is determined by adopting a kit purchased by Beijing Ke Meidong ya biotechnology company, and the test is carried out by taking nest as a unit for data statistics. The control group was fed with the complete feed only, and examples 1 to 4 were added to the complete feed at a ratio of 0.5%, and the results of comparing the effects of the examples and the control group are shown in table 6.
TABLE 5 nutritional parameters of basal diets in this round of testing
TABLE 6 comparison of the results of the examples and the control group
Remarking: the judgment basis of the fallen pigs is as follows: average daily gain is less than 50 g.
The results of the test example show that the addition of the feed additive can reduce the number of pigs falling behind by 71.4% on average and increase the daily gain of other piglets by 13.7% for 9-17kg (fed with the conservation concentrated feed powder feed 21d) piglets. At the same time, the serum cortisol levels of examples 1-4 were greatly reduced. In comparison, the compatibility of the Chinese herbal medicines in example 3 is the best.
[ TEST EXAMPLE IV ] the product of the invention has the effect of correcting and compensating the fallen pigs in the nursery stage
In the test example, the adding proportion of the product of the invention in the complete feed is 0.9%.
After 2 nursery houses of large groups of pigs are transferred out, the pigs which fall behind are picked out, the pigs are concentrated to test pens for housing feeding, 75 pigs which fall behind are selected and divided into five groups, each group is repeated three times, each group is repeated for 5 pigs, the average weight of the five groups is ensured to be consistent, and the basic daily ration is the later-stage complete feed (the nutritional parameters of the complete feed are shown in the following table 7) for the nursery piglets produced by the invention unit. The test is carried out by taking nest as a unit for data statistics. The control group is only fed with the later-stage complete feed of the nursery piglets, the examples 1 to 4 are added into the later-stage complete feed of the nursery piglets at the ratio of 0.9 percent, and the effect comparison results of the examples and the control group are shown in the table 8.
TABLE 7 Nutrition parameters of basal diet in this round of experiment
TABLE 8 comparison of the results of the examples and the control group
Remarking: the judgment basis of the fallen pigs is as follows: average daily gain is less than 50 g.
The results of the test example show that about 10kg of the fallen piglets are gathered together and fed in an additive amount so as to be expected to realize compensatory growth of the fallen piglets, 0.9 percent of the feed additive is additionally added, and the number of the fallen piglets can be reduced by 81 percent compared with that of the control group; for 4 example groups, 15 pigs are averagely started in the test, and 2.5 pigs which fall behind are averagely remained after 25 days of feeding, namely the Chinese herbal medicine additive is fed according to the addition amount of 0.9%, and the correction and compensation effect on the pigs which fall behind can reach 83.3%. In comparison, the compatibility of the Chinese herbal medicines in example 3 is the best.
The above description is only exemplary of the present invention and should not be taken as limiting, and any modifications, equivalents and the like included in the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (9)
1. A feed additive for reducing growth disorder for piglets is characterized by comprising compound Chinese herbal medicine powder and fermented Chinese herbal medicine powder which are mixed in a ratio of (1-3) to 1;
the compound Chinese herbal medicine powder comprises the following raw materials in parts by weight: 10-14 parts of codonopsis pilosula, 10-12 parts of fried hawthorn, 9-12 parts of Chinese yam, 9-13 parts of white paeony root, 4-7 parts of sealwort, 5.5-7 parts of betel nut, 5-7 parts of angelica, 5-6.5 parts of liquorice, 5.5-6.5 parts of fried spina date seed, 5.5-6.5 parts of purslane, 5-7 parts of houttuynia cordata, 5-7 parts of malt powder and 4-6 parts of rhubarb; the fermented Chinese herbal medicine powder is prepared from the following raw materials in parts by weight: 40 parts of astragalus mongholicus dregs, 35 parts of poplar flower dregs, 15 parts of corn flour, 10 parts of bran and 0.05 part of composite leavening agent.
2. The growth disorder-reducing feed additive for piglets as claimed in claim 1, wherein the compound Chinese herbal powder additive further comprises a feed-grade sweetener and/or an excipient.
3. The feed additive for piglets, which is used for reducing the growth disturbance of cattle according to claim 1, wherein the composite starter comprises more than or equal to 50 hundred million/g of lactobacillus plantarum, more than or equal to 30 hundred million/g of bacillus subtilis, more than or equal to 30 hundred million/g of bacillus licheniformis and more than or equal to 500U/g of feeding cellulase.
4. A method for preparing a feed supplement for piglets according to any of claims 1-3, which comprises the steps of:
1) dissolving 0.05 part of composite leaven in water to obtain a composite leaven solution, uniformly mixing 40 parts of astragalus residue, 35 parts of poplar flower residue, 15 parts of corn flour, 10 parts of bran and the composite leaven solution, and performing anaerobic fermentation at 32-38 ℃ for 34-36 hours to obtain fermented Chinese herbal medicine;
2) drying the fermented Chinese herbal medicine obtained in the step 1) at a temperature of not higher than 45 ℃, drying until the weight percentage of the water is 8.5-10%, and crushing to obtain fermented Chinese herbal medicine powder;
3) mixing the compound Chinese herbal medicine powder and the fermented Chinese herbal medicine powder obtained in the step 2) according to the proportion of (1-3) to 1, and obtaining the feed additive for reducing the growth disorder for the piglets.
5. The method for preparing a feed additive according to claim 4, wherein the method for preparing the compound Chinese herbal medicine powder in the step 3) comprises the following steps: 10-14 parts of codonopsis pilosula, 10-12 parts of fried hawthorn, 9-12 parts of Chinese yam, 9-13 parts of white paeony root, 4-7 parts of rhizoma polygonati, 5.5-7 parts of betel nut, 5-7 parts of angelica, 5-6.5 parts of liquorice, 5.5-6.5 parts of fried spina date seed, 5.5-6.5 parts of purslane, 5-7 parts of houttuynia cordata, 5-7 parts of malt powder and 4-6 parts of rhubarb are respectively crushed to 300 meshes and then mixed to obtain the composite Chinese herbal medicine powder.
6. The method for preparing feed additive according to claim 4, wherein the water content of the fermented Chinese herbal medicine before fermentation in step 1) is controlled to be 44-46% by weight.
7. The method for preparing a feed additive according to claim 4, wherein the grain size of the corn flour in step 1) is 1.5mm, and the grain size of the fermented Chinese herbal medicine in step 2) is 80-100 mesh.
8. Use of a feed supplement for piglets according to any of claims 1-3, characterized in that the nursery piglets are fed with a proportion of 0.9% of the complete formula feed showing signs of growth failure.
9. The use of the feed additive for piglets according to any of claims 1 to 3, wherein the feed additive is added to calves for preventing growth disorders of large-group weaned piglets at a ratio of 0.5% of the complete formula feed.
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| CN101731461A (en) * | 2009-08-12 | 2010-06-16 | 南京南农高科兽药研究所有限公司 | Plant-based animal immune potentiator prepared by fermenting and developing radix astragali decoction dregs |
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Application publication date: 20200724 |