The concentrations of ammonia, carbon dioxide and PM2.5 in the barns of the experimental groups all showed a decreasing trend.
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Effects of Compound Probiotics on Production Performance, Apparent Digestion Rate of Nutrients and Serum Index of Pigs at Different Stages.
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The sentences
Ye found that supplementing the diet of pregnant sows with probiotics had no significant effect on the immunoglobulin levels in colostrum [ 51 ]; however, the immunoglobulin content showed an increasing trend.