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Peer-reviewedCC BY 4.0ACS Omega

Enterococcus faecium E297 in the Diet of Chickens: Effects on Zootechnical Performance, Animal Health and Meat Quality

  • Mariane Ficagna Bertotti1
  • Maiara Marchiori2
  • Paulo Vinicius de Oliveira2
  • Alexandra Melissa Goncalves de Carvalho1
  • Stéfani Mallmann1
  • Tais Nunzio Muller1
  • Gabriel Danieli1
  • Júnior Mendes Furlan3
  • Roger Wagner4
  • Ricardo Evandro Mendes5
  • Marcel Manente Boiago1,2
  • Louise Haubert1
2 more authors
  • Aleksandro Schafer Da Silva2
  • Liziane Schittler Moroni1
5 affiliations
  1. 1Universidade Do Estado de Santa Catarina (UDESC) , , Rodovia BR-282, Km 573.5, Linha Santa Terezinha , , ,
  2. 2Universidade Do Estado de Santa Catarina (UDESC) , , Rua Beloni Trombeta Zanin, 680-E, Santo Antônio , , ,
  3. 3Federal University of Pampa (UNIPAM) , , Rua Luiz Joaquim de Sá Britto, S/n, Promorar , , ,
  4. 4Universidade Federal de Santa Maria (UFSM) , , Avenida Roraima, 1000, Camobi , , ,
  5. 5Instituto Federal Catarinense (IFC) , Campus Concórdia, Rodovia SC-283, S/n, Fragosos , , ,
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Abstract

This study evaluated the potential of Enterococcus faecium E297 as a functional dietary supplement for broiler chickens, assessing its effects on zootechnical performance, immune response, and meat quality. A total of 224 chicks were allocated to four treatments: a control diet, a diet containing an antibiotic growth promoter, a diet supplemented with E. faecium E297, and a commercial probiotic diet. Probiotic supplementation improved feed conversion and weight gain and increased leukocyte counts compared with the control group. Birds fed E. faecium E297 showed a higher villus-to-crypt ratio, suggesting greater nutrient absorption efficiency. Meat from probiotic-supplemented groups exhibited lower fat content and higher protein levels. No significant differences (P > 0.05) were observed in microbial counts of the litter, cloaca, or feces throughout the experimental period. The results indicate that E. faecium E297 has potential as an effective probiotic alternative to antibiotic growth promoters in poultry production.

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Cite

BibTeXRIS
BibTeX
@article{bertotti2026enterococcus,
  title = {{Enterococcus faecium E297 in the Diet of Chickens: Effects on Zootechnical Performance, Animal Health and Meat Quality}},
  author = {Mariane Ficagna Bertotti and Maiara Marchiori and Paulo Vinicius de Oliveira and Alexandra Melissa Goncalves de Carvalho and Stéfani Mallmann and Tais Nunzio Muller and Gabriel Danieli and Júnior Mendes Furlan and Roger Wagner and Ricardo Evandro Mendes and Marcel Manente Boiago and Louise Haubert and Aleksandro Schafer Da Silva and Liziane Schittler Moroni},
  journal = {ACS Omega},
  year = {2026},
  month = oct,
  doi = {10.1021/acsomega.6c02805},
  url = {https://pubs.acs.org/acsodf/article/11/41/62572/5446537/Enterococcus-faecium-E297-in-the-Diet-of-Chickens},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Enterococcus faecium E297 in the Diet of Chickens: Effects on Zootechnical Performance, Animal Health and Meat Quality
AU  - Mariane Ficagna Bertotti
AU  - Maiara Marchiori
AU  - Paulo Vinicius de Oliveira
AU  - Alexandra Melissa Goncalves de Carvalho
AU  - Stéfani Mallmann
AU  - Tais Nunzio Muller
AU  - Gabriel Danieli
AU  - Júnior Mendes Furlan
AU  - Roger Wagner
AU  - Ricardo Evandro Mendes
AU  - Marcel Manente Boiago
AU  - Louise Haubert
AU  - Aleksandro Schafer Da Silva
AU  - Liziane Schittler Moroni
PY  - 2026
DA  - 2026/10/07
JO  - ACS Omega
DO  - 10.1021/acsomega.6c02805
UR  - https://pubs.acs.org/acsodf/article/11/41/62572/5446537/Enterococcus-faecium-E297-in-the-Diet-of-Chickens
AB  - This study evaluated the potential of Enterococcus faecium E297 as a functional dietary supplement for broiler chickens, assessing its effects on zootechnical performance, immune response, and meat quality. A total of 224 chicks were allocated to four treatments: a control diet, a diet containing an antibiotic growth promoter, a diet supplemented with E. faecium E297, and a commercial probiotic diet. Probiotic supplementation improved feed conversion and weight gain and increased leukocyte counts compared with the control group. Birds fed E. faecium E297 showed a higher villus-to-crypt ratio, suggesting greater nutrient absorption efficiency. Meat from probiotic-supplemented groups exhibited lower fat content and higher protein levels. No significant differences (P > 0.05) were observed in microbial counts of the litter, cloaca, or feces throughout the experimental period. The results indicate that E. faecium E297 has potential as an effective probiotic alternative to antibiotic growth promoters in poultry production.
SN  - 2470-1343
ER  -