Control of Neonatal Diarrhea in Piglets with Reduced Antibiotic Use by Application of a Complementary Feed-A Randomized Controlled Farm Trial
- PMID: 39852918
- PMCID: PMC11769454
- DOI: 10.3390/vetsci12010042
Control of Neonatal Diarrhea in Piglets with Reduced Antibiotic Use by Application of a Complementary Feed-A Randomized Controlled Farm Trial
Abstract
The objective of this farm trial was to investigate if the consumption of antibiotics could be reduced when piglets showing early signs of neonatal diarrhea were treated with an oral dose of tannin extract derived from sweet chestnut wood. The farm had a very high incidence of neonatal diarrhea among gilt litters. Gilts were randomized into test or control groups in a 1:1 ratio to compare the consumption of antibiotics used for piglets and piglet mortality during the four-week trial period. Control litters were treated with the oral antibiotic paromomycin, while test litters were treated with the complementary feed O-Nella-Protect. The farm trial included 18 gilt litters comprising 254 piglets. In the control group, 100% of the piglets received antibiotic treatment. In the test group, consumption of antibiotics used against diarrhea was reduced by 84% (p = 0.001) and consumption of antibiotics used for other illnesses was reduced by 45% (p = 0.045). In both test and control groups, six piglets died. Microbiological analysis identified both potential bacterial and viral pathogens. In conclusion, the farm trial indicates that even under the challenge of potentially serious bacterial and viral pathogens, a complimentary feed containing a tannin extract can support piglet health and reduce antibiotic consumption.
Keywords: Castanea sativa; Clostridium perfringens; O-Nella-Protect; RCT; RWA; Rotavirus; neonatal diarrhea; piglet; polyphenole; randomized controlled trial; tannin extract.
Conflict of interest statement
Authors L.F., C.D. and C.P. declare that they have no competing interests. The company Pedersen Nutrition Ltd also has no competing interests. Authors K.T.H., K.K.S., M.J.A. and S.J.C. declare that they have shared ownership of the company Newtrifeed ApS, which sells the tested product O-Nella-Protect. K.K.S. who owns Sall&Sall Advisors and S.J.C. declare that they received economic compensation as directors of Newtrifeed ApS and that they co-invented the product. K.T.H. and M.N.A. declare that they on a monthly basis provide veterinary service to the test farm on behalf of the veterinary company Porcus according to Danish regulations, that they recommended the farm for the test, and that they have a professional interest in reducing the consumption of antibiotics on farms.
Figures

Similar articles
-
Non-toxigenic strain of Clostridioides difficile Z31 reduces the occurrence of C. difficile infection (CDI) in one-day-old piglets on a commercial pig farm.Vet Microbiol. 2019 Apr;231:1-6. doi: 10.1016/j.vetmic.2019.02.026. Epub 2019 Feb 20. Vet Microbiol. 2019. PMID: 30955794
-
Administration of non-pathogenic isolates of Escherichia coli and Clostridium perfringens type A to piglets in a herd affected with a high incidence of neonatal diarrhoea.Animal. 2017 Apr;11(4):670-676. doi: 10.1017/S1751731116001804. Epub 2016 Aug 30. Animal. 2017. PMID: 27574018
-
Efficacy of a New Commercial Vaccine Against Clostridioides difficile and Clostridium perfringens Type A for Recurrent Swine Neonatal Diarrhea Under Field Conditions.Animals (Basel). 2025 Apr 23;15(9):1200. doi: 10.3390/ani15091200. Animals (Basel). 2025. PMID: 40362015 Free PMC article.
-
Gut microbiome modifications over time when removing in-feed antibiotics from the prophylaxis of post-weaning diarrhea in piglets.PLoS One. 2022 Mar 7;17(3):e0262199. doi: 10.1371/journal.pone.0262199. eCollection 2022. PLoS One. 2022. PMID: 35255081 Free PMC article.
-
Role of immunomodulatory probiotics in alleviating bacterial diarrhea in piglets: a systematic review.J Anim Sci Biotechnol. 2024 Aug 12;15(1):112. doi: 10.1186/s40104-024-01070-z. J Anim Sci Biotechnol. 2024. PMID: 39129013 Free PMC article. Review.
Cited by
-
Presence of toxin-producing bacterial pathogens and associated risk factors in neonatal diarrhea of piglets on commercial sow farms in Vietnam.Vet World. 2025 May;18(5):1288-1296. doi: 10.14202/vetworld.2025.1288-1296. Epub 2025 May 21. Vet World. 2025. PMID: 40584133 Free PMC article.
References
-
- Collignon P., Powers J.H., Chiller T.M., Aidara-Kane A., Aarestrup F.M. World Health Organization ranking of antimicrobials according to their importance in human medicine: A critical step for developing risk management strategies for the use of antimicrobials in food production animals. Clin. Infect. Dis. Off. Publ. Infect. Dis. Soc. Am. 2009;49:132–141. doi: 10.1086/599374. - DOI - PubMed
-
- Jensen V.F. A Decade of Declining Sales of Antimicrobials for Animals in Europe. 2023. [(accessed on 24 July 2024)]. Available online: https://pigresearchcentre.dk/-/media/PDF/English-site/Research_PDF/Veten....
-
- Naghavi M., Vollset S.E., Ikuta K.S., Swetschinski L.R., Gray A.P., Wool E., Aguilar G.R., Mestrovic T., Smith G., Han C., et al. Global burden of bacterial antimicrobial resistance 1990–2021: A systematic analysis with forecasts to 2050. Lancet. 2024;404:1199–1226. doi: 10.1016/S0140-6736(24)01867-1. - DOI - PMC - PubMed
-
- Cargill ‘Raising Antibiotic-Free Pigs’. [(accessed on 24 July 2024)]. Available online: https://www.cargill.com/history-story/en/raising-antibiotic-free-pig.jsp.
Grants and funding
LinkOut - more resources
Full Text Sources
Medical