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Antibiotics
Volume 10
Issue 6
10.3390/antibiotics10060651
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Article

The Effect of α-Monolaurin and Butyrate Supplementation on Broiler Performance and Gut Health in the Absence and Presence of the Antibiotic Growth Promoter Zinc Bacitracin

by
Bakang R. Letlole
1,
Ellen P. C. W. Damen
2 and
Christine Jansen van Rensburg
1,*
1
Department of Animal Science, University of Pretoria, Pretoria 0002, South Africa
2
Research & Development, FRA®melco B.V., 4941 SB Raamsdonksveer, The Netherlands
*
Author to whom correspondence should be addressed.
Academic Editor: Gernot Zarfel
Antibiotics 2021, 10(6), 651; https://doi.org/10.3390/antibiotics10060651
Received: 30 March 2021 / Revised: 5 May 2021 / Accepted: 27 May 2021 / Published: 29 May 2021
(This article belongs to the Special Issue Usage of Antibiotic in Agriculture and Animal Farming)
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Abstract

The use of antibiotic growth promoters (AGP) is common practice to improve broiler production and performance. The use of AGP is under discussion as it can induce bacterial resistance. The purpose of this study was to determine the impact of removing AGP from broiler feed and study the effect of feed additives. For those countries where in-feed AGP are still permitted, the effect of the products in the presence of AGP was evaluated. Half the number of male broilers received a diet free of AGP, whereas the other half received a diet supplemented with zinc bacitracin at 0.5 g/kg. Both diets were either without additional additives or combined with a coated sodium butyrate, α-monolaurin or a combination of these additives. Raised under optimal conditions, the incorporation of AGP had no effect on broiler performance, but negatively affected villi height and villi height to crypt depth (VH:CD) ratio in the duodenum. In the absence of AGP, butyric acid and α-monolaurin had a positive effect on villi height. In the presence of AGP, α-monolaurin resulted in the lowest feed conversion ratio and improved VH:CD ratio in the duodenum, jejunum and ileum. Both feed additives had minimal effect on performance parameters but showed small positive effects on gut health in the absence of AGP and could play a role in the strategy to replace AGP. View Full-Text
Keywords: broilers; α-monolaurin; sodium butyrate; intestinal health; zinc bacitracin broilers; α-monolaurin; sodium butyrate; intestinal health; zinc bacitracin
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
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MDPI and ACS Style

Letlole, B.R.; Damen, E.P.C.W.; Jansen van Rensburg, C. The Effect of α-Monolaurin and Butyrate Supplementation on Broiler Performance and Gut Health in the Absence and Presence of the Antibiotic Growth Promoter Zinc Bacitracin. Antibiotics 2021, 10, 651. https://doi.org/10.3390/antibiotics10060651

AMA Style

Letlole BR, Damen EPCW, Jansen van Rensburg C. The Effect of α-Monolaurin and Butyrate Supplementation on Broiler Performance and Gut Health in the Absence and Presence of the Antibiotic Growth Promoter Zinc Bacitracin. Antibiotics. 2021; 10(6):651. https://doi.org/10.3390/antibiotics10060651

Chicago/Turabian Style

Letlole, Bakang R., Ellen P.C.W. Damen, and Christine Jansen van Rensburg. 2021. "The Effect of α-Monolaurin and Butyrate Supplementation on Broiler Performance and Gut Health in the Absence and Presence of the Antibiotic Growth Promoter Zinc Bacitracin" Antibiotics 10, no. 6: 651. https://doi.org/10.3390/antibiotics10060651

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