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Which beneficial bacteria works well when added to suckling pig feed?

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Which kind of beneficial bacteria is better to use in suckling pig feed?
With the improvement of environmental awareness and health awareness, many companies add beneficial bacteria or probiotics to suckling pig creep feed or nursery feed, hoping that the piglets' intestines will be naturally healthy. A healthy intestine brings many benefits, such as solving the problem of diarrhea, intestinal mucosal nutrition issues, feed intake and growth rate, etc. However, suckling pig feed often contains high copper or high zinc, a certain amount of antibiotics is also unavoidable, and there is also heat loss from pellet processing, all of which affect the effectiveness of beneficial bacteria. So, which beneficial bacteria is good to add? How should the other ingredients be adjusted accordingly? Everyone, please discuss.
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The original poster's formulation idea is very good. If you follow this idea, then copper, zinc, iron, etc. must be reduced, using 160, 120, 140 and that will do, then use a Bacillus complex, use no drugs or few drugs, plus functional additives such as enzyme preparations and acidifiers, and at the same time make your major ingredients well. It should be a very effective pollution-free feed.
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You should choose some thermotolerant and acid-tolerant beneficial live bacteria to ensure the number of live bacteria, such as natto spore bacteria, Bacillus subtilis, etc. They should avoid being used together with disinfectant water. Generally, combined use with antibiotics is not a problem. With a good live bacteria product, you can use fewer antibiotics or gradually stop using them.
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Bacillus natto is currently not in the directory of permitted additives. It should not be allowed to be used.
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Will the drugs in the feed affect the live bacteria?
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If you want not to use drug additives, at least for now the conditions are not mature. Americans are still using clenbuterol. The key is how to use it.
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You can avoid adding bacteria! Add fermented products of bacteria or yeast extracts as nutrients for endogenous bacteria.
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Adding probiotics to suckling pig feed is very unstable. We have consulted some Dutch experts.
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At this Xi'an conference I saw a "lactobacillin", I wonder how the effect will be?
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I have a lactobacillin technical data sheet here. I wonder if it meets your requirements?
Piglet experiment: 20 healthy piglets from a Large White x Landrace x Duroc three-way cross, added at a ratio of 2 per thousand, growth period 47 days. The experimental group's revenue was 444.56, and the control group's was 305.52 yuan; the experimental group's lactobacillin cost was 14.42, generating an economic benefit of 139.04 yuan.
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This has an even higher input-output ratio than antibiotics. Really impressive.
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It still needs further verification at large-scale pig farms.

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