Yellow mealworm inclusion in diets for heavy-size broiler chickens: Implications for intestinal microbiota and mucin dynamics
Articolo
Data di Pubblicazione:
2020
Abstract:
In the present trial, 160 heavy-size male broiler chickens were allocated to 4 dietary treatments (control feed [C] and 5, 10 and 15% TM meal inclusion, respectively, with 5 replicate pens/treatment and 8 birds/pen) to evaluate the influence of TM meal on intestinal microbiota and mucin composition. The broiler chickens fed TM-based diets showed higher beta diversity of their cecal microbiota in comparison with the C birds (p < 0.001). A significant decrease of the relative abundance of Firmicutes phylum and lower Firmicutes:Bacteroidetes ratios (False Discovery Rate [FDR] < 0.05) were also identified in TM15 broiler chickens when compared to the C group. Furthermore, the TM birds showed decreased relative abundance of Clostridium, Coprococcus, L-Ruminococcus and Ruminococcus genera (FDR < 0.05). In relation to the gut mucin composition, higher mucin staining intensity was detected in the intestinal crypts of TM5 birds in comparison with the other TM groups (p < 0.05). In conclusion, dietary TM meal inclusion negatively influenced the cecal microbiota of heavy-size broiler chickens in terms of partial alteration of the physiological microbial population and reduction of the potential beneficial bacteria (with slightly more pronounced effects when testing the 10–15% inclusion levels).
Tipologia CRIS:
03A-Articolo su Rivista
Keywords:
Broiler chicken; Insect meal; Microbiota; Mucin
Elenco autori:
Biasato I.; Ferrocino I.; Grego E.; Dabbou S.; Gai F.; Gasco L.; Cocolin L.; Capucchio M.T.; Schiavone A.
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