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Faecal Microbiota of Dogs Offered a Vegetarian Diet with or without the Supplementation of Feather Meal and either Cornmeal, Rye or Fermented Rye: A Preliminary Study

1
Institute for Animal Nutrition, University of Veterinary Medicine Hannover, Foundation, 30173 Hannover, Germany
2
Department of Nutrition and Nutritional Deficiency Diseases, Faculty of Veterinary Medicine, Mansoura University, Mansoura 35516, Egypt
3
Helmholtz Center for Infection Research, Inhoffenstraße 7, 38124 Braunschweig, Germany
4
Hannover Medical School, Carl-Neuberg-Straße 1, 30625 Hannover, Germany
*
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Microorganisms 2020, 8(9), 1363; https://doi.org/10.3390/microorganisms8091363
Received: 10 August 2020 / Revised: 1 September 2020 / Accepted: 4 September 2020 / Published: 6 September 2020
(This article belongs to the Section Gut Microbiota)
Anthropomorphism of dogs has affected feeding and the choice of components present in diets for dogs. Conflicting trends are present: raw or vegetarian appear more prevalent. Animal-derived proteins seem to have unfavourable impacts on intestinal microflora by decreasing the presence of Bacteroidetes. This preliminary study evaluates whether effects of diets with animal proteins on intestinal microbiota can be compensated by the addition of certain carbohydrates to dog diet. Eight female beagles were included in a cross-over study and fed a vegetarian diet or the same diet supplemented with feather meal (2.7%) and either 20% of cornmeal, fermented or non-fermented rye (moisture content of the diets about 42%). A 16S rRNA gene amplification was performed within the hypervariable region V4 on faecal samples and sequenced with the Illumina MiSeq platform. The Firmicutes/Bacteroidetes ratio tended to shift to the advantage of Firmicutes when feather meal and cornmeal were added (Firmicutes/Bacteroidetes ratio of 5.12 compared to 2.47 when offered the vegetarian diet) and tended to switch back to the advantage of Bacteroidetes if rye: fermented (2.17) or not (1.03) was added. The addition of rye might have the potential to compensate possible unfavourable effects of diets with animal proteins on intestinal microbiota of dogs. View Full-Text
Keywords: dog; gut bacteria; Firmicutes; Bacteroidetes; 16S rRNA gene; novel nutritional trends; fermentation; fibre dog; gut bacteria; Firmicutes; Bacteroidetes; 16S rRNA gene; novel nutritional trends; fermentation; fibre
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MDPI and ACS Style

Hankel, J.; Abd El-Wahab, A.; Grone, R.; Keller, B.; Galvez, E.; Strowig, T.; Visscher, C. Faecal Microbiota of Dogs Offered a Vegetarian Diet with or without the Supplementation of Feather Meal and either Cornmeal, Rye or Fermented Rye: A Preliminary Study. Microorganisms 2020, 8, 1363. https://doi.org/10.3390/microorganisms8091363

AMA Style

Hankel J, Abd El-Wahab A, Grone R, Keller B, Galvez E, Strowig T, Visscher C. Faecal Microbiota of Dogs Offered a Vegetarian Diet with or without the Supplementation of Feather Meal and either Cornmeal, Rye or Fermented Rye: A Preliminary Study. Microorganisms. 2020; 8(9):1363. https://doi.org/10.3390/microorganisms8091363

Chicago/Turabian Style

Hankel, Julia; Abd El-Wahab, Amr; Grone, Richard; Keller, Birgit; Galvez, Eric; Strowig, Till; Visscher, Christian. 2020. "Faecal Microbiota of Dogs Offered a Vegetarian Diet with or without the Supplementation of Feather Meal and either Cornmeal, Rye or Fermented Rye: A Preliminary Study" Microorganisms 8, no. 9: 1363. https://doi.org/10.3390/microorganisms8091363

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