Targeted-release organic acids and essential oils improve performance and digestive function in broilers under a necrotic enteritis challenge

Abdelli, N.; Pérez, J.F.; Vilarrasa, E.; Luna, I.C.; Melo-Duran, D.; D’angelo, M.; Solà-Oriol, D. ✉

Angol nyelvű Tudományos Szakcikk (Folyóiratcikk)
Megjelent: ANIMALS 2076-2615 10 (2) Paper: 259 2020
  • SJR Scopus - Animal Science and Zoology: Q1
An experiment was performed to evaluate the effect of four different microencapsulated blends of organic acids (OA) and nature-identical aromatic compounds (AC) on growth performance and gut health of broilers challenged with a recycled NE litter. A total of 600 one-day-old male Ross 308 broilers were randomly assigned to five treatments consisting of a basal diet (as negative control) supplemented with each of the tested microencapsulated blends: OA1 (malic and fumaric acid) + AC; 2.5 g/kg; OA2 (calcium butyrate+fumaric acid) + AC; 1.7 g/kg; MCFA (capric-caprylic; caproic and lauric acid) + AC; 2 g/kg; and MCFA + OA3(calcium butyrate + fumaric and citric acid) + AC; 1.5 g/kg. The AC used was the same for all treatments; including cinnamaldehyde, carvacrol, and thymol (8:1:1), as major compounds. Three tested blends enhanced growth performance by improving intestinal histomorphology (p < 0.001). The tested blends enhanced the abundance of some beneficial families such as Ruminococcaceae and Lachnospiraceae; while reducing that of harmful ones such as Enterobacteriaceae and Helicobacteraceae. A further dose-response experiment showed that 0.5 g/kg of the blend 2 and 2 g/kg of the blend 4 improved growth performance and intestinal histomorphology of chickens on d 42 and decreased fecal Enterobacteriaceae and C. perfringens counts. Similar effects to the previous experiment were observed for cecum microbiota. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
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2020-08-15 22:46