Probiotic-astragalus polysaccharide composition for feeding commercial chicken
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A technology of astragalus polysaccharides and probiotics, applied in applications, animal feed, animal feed, etc., to achieve the effect of maintaining micro-ecological balance, purifying the environment inside and outside the house, and improving meat production rate
Inactive Publication Date: 2011-04-27
TIANJIN RINGPU BIO TECH
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Problems solved by technology
[0019] The purpose of the present invention is to overcome the deficiency of a single bacterial strain and provide a probio
Method used
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Embodiment 1
[0027] Embodiment 1: Preparation of probiotics-Astragalus polysaccharide composition
[0028] (1) Inoculation of Bacillus subtilis strains Inoculate the strains on beef extract peptone solid medium, then put them into an incubator for cultivation, and cultivate them at 37° C. for 16 hours;
[0029] Fermentation culture of Bacillus subtilis The above-mentioned activated cultured colonies were eluted, added to beef extract peptone liquid medium by aseptic method, and cultivated for 16 hours at 37°C and 200 rpm.
[0030] Preparation of live Bacillus subtilis dry powder The above-mentioned fermented fermentation liquid is introduced into a centrifuge through a pipeline, and centrifuged with a large-capacity centrifuge at 6000 rpm for 15 minutes at low temperature (4° C.). Collect the sludge-like bacteria in the centrifuge tube, dry under reduced pressure at 40°C to obtain 3 g of dry bacteria powder of Bacillus subtilis, and check the number of live bacteria, which is 5×10 11 cfu / ...
Embodiment 2
[0038] Embodiment 2: the treatment of above-mentioned composition to chicken glandular gastritis
[0039] A certain chicken farm raised 4,500 broilers, and at the age of 22 days, about 30% of the chickens had decreased feed intake, low feed conversion rate, and low growth rate. Anatomy found that the small intestine appeared in spots, a small amount of intestinal mucosa fell off, and the papilla of the glandular stomach Edema, swelling of the glandular stomach. Determined as chicken glandular gastritis disease. No medicine was used during feeding.
[0040] Feed the probiotics-astragalus polysaccharide 20% mix, and take it at a dose of 50 million live bacteria per chicken per day. After 7 days, feed with 5% mix for 1 day. After 2 weeks, the whole group recovered, and the feed intake increased from 1 tael to 2.3 taels per day.
[0041] Clinical results show that the invention can prevent and treat chicken glandular gastritis, improve the survival rate, improve the immune func...
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Abstract
The invention relates to a probiotic-astragalus polysaccharide composition for feeding commercial chicken, which is characterized by comprising the following active ingredients in percentage by mass: 0.3 to 0.6 percent of bacillus licheniformis dry powder, 0.1 to 0.6 percent of lactic acid bacteria dry powder, 0.1 to 0.6 percent of bacillus subtilis dry powder, 10 to 20 percent of astragalus polysaccharide, 20 to 80 percent of corn meal and 10 to 40 percent of soybean meal. Probiotics prepared through large-pot liquid fermentation and 40 DEG C reduced pressure drying technology are adopted in the invention, wherein the viable bacteria content of the probiotics is that: the content of the bacillus licheniformis dry powder is more than or equal to 1*108cfu/g, the content of the lactic acid bacteria dry powder is more than or equal to 1*1,011cfu/g, and the content of the bacillus subtilis dry powder is more than or equal to 1*1,011cfu/g. The composition belongs to an environmentally-friendly growth promoter, has the effects of improving the animal production performance, enhancing the body immunity, providing nutrition for bodies, reducing the harmful gas concentration of a hen house, and the like, and has obvious effect of improving the meat-increasing rate of the commercial chicken.
Description
technical field [0001] The invention belongs to the field of veterinary feed additives, in particular to a preparation method of a probiotic composition used for feeding broilers. Background technique [0002] Micro-ecological feed additives are live bacterial preparations containing beneficial microorganisms to animals developed according to the theory of micro-ecology. They play a role by maintaining the micro-ecological balance in the intestinal tract of animals, and have various functions such as promoting the growth and development of animals and improving the immunity of animals. , and no pollution, no residue, no drug resistance and no harm to the environment, etc., is a new type of green environmental protection feed additive. These probiotic preparations for poultry and livestock contain Bacillus, Lactobacillus, Streptococcus faecalis, Bifidobacterium, yeast, etc. Photosynthetic bacteria, some strains of Clostridium and bacteriophage Bdellovibrio are also occasional...
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