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  • Title: Effect of dietary supplementation with a probiotic (Enterococcus faecium) on production performance, excreta microflora, ammonia emission, and nutrient utilization in ISA brown laying hens.
    Author: Park JW, Jeong JS, Lee SI, Kim IH.
    Journal: Poult Sci; 2016 Dec 01; 95(12):2829-2835. PubMed ID: 27422665.
    Abstract:
    The ban on the use of antibiotics as growth promoters due to resistance issues has urged scientists to find alternatives to antibiotics. Entercoccus faecium is one of the probiotics which have been used as an alternative to antibiotics in the livestock industry. This study was conducted to evaluate the effect of probiotic (Enterococcus faecium DSM 7134) supplementation on production performance, feed intake, egg quality, excreta microflora, ammonia emission, and nutrient utilization in laying hens. A total of 288 ISA brown laying hens were used in a 27 wk feeding experiment and randomly assigned to 3 dietary treatments with 8 replicates of 12 birds each. The treatments were CON (basal diet), PB1 (basal diet + 0.005% E. faecium), and PB2 (basal diet + 0.01% E. faecium). Overall, our results demonstrated that E. faecium supplementation resulted in a significant increase in egg production, egg shell thickness, and nutrient digestibility (dry matter, nitrogen, and energy) in laying hens, and a significant reduction in fecal coliform counts as compared with CON. The shift of excreta fecal microbial composition by E. faecium supplementation was accompanied by increased nutrient retention and reduction in nutrient excretion, leading to improved nutrient digestibility and reduced excreta ammonia emission. Overall, E. faecium supplementation appears to have a beneficial effect in ISA brown laying hens and should be considered as a positive diet supplement to use in the industry.
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