Abstract

QUEVEDO, D. M.; OCHOA, J. E.; CORREDOR, J. R.  and  PULECIO, S. L.. Effects of addition of probiotic Saccharomyces cerevisiae on intestinal histomorphology in broilers. Rev. Med. Vet. Zoot. [online]. 2020, vol.67, n.3, pp.239-252.  Epub May 05, 2021. ISSN 0120-2952.  https://doi.org/10.1446/rfmvz.v67n3.93931.

This work describes the effects of the probiotic Saccharomyces cerevisiae on the area, number of Lieberkühn crypts in the duodenum and jejunum, and mucus production in both intestinal sections. Tissues from a total of 27 individuals were used, classified in control group - GC (n = 12) and group supplemented with probiotics - GP (n = 15). The results revealed that the group supplemented with S. cerevisiae presented a greater area of the crypts in the duodenum (p = 0.0119) and jejunum (p = 0.0355), less number of crypts per millimeter in the duodenum (p = 0.0420) and higher mucus production in the duodenum compared to the control group (p = 0.0185), while in the jejunum no significant differences were observed. It was concluded that the use of Saccharomyces cerevisiae increased the size of the crypt area in both intestinal sections and increased mucus production in the duodenum; which by increasing the intestinal absorption surface could surely result in improvements in the productive parameters.

Keywords : broiler; supplements; histology; small intestine.

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