Publikationsdatenbank

Impact of varying dietary concentrations of dried food residues on feed intake, apparent nutrient digestibility and fecal bacterial metabolites of adult dogs (2020)

Art

Vortrag

Autoren

Paßlack, N. (WE 4)

Galliou, F.

Manios, T.

Zentek, J. (WE 4)

Kongress

24th ESVCN Congress

München, 17. – 19.09.2020

Quelle

Congress Proceedings : 24th Congress of the European College of Veterinary and Comparative Nutrition : September 17 - 19, 2020 — Ludwig-Maximilians-Universität München (Hrsg.)

München, 2020 — S. 116

ISBN: 978-90-90-33625-1

Sprache

Englisch

Verweise

URL (Volltext): https://www.zora.uzh.ch/id/eprint/190612/1/Congress_proceedings_2020_ffv_(4).pdf

Kontakt

Institut für Tierernährung

Königin-Luise-Str. 49
14195 Berlin
+49 30 838 52256
tierernaehrung@vetmed.fu-berlin.de

Abstract / Zusammenfassung

Introduction:
The project “Food for Feed” (LIFE15 ENV/GR/000257) evaluates the use of dried food residues (DFR) from hotel catering in animal nutrition. The approach could contribute to a significant reduction of waste production and environmental burden by food waste, though legal restrictions are
still a hurdle. In the present study, the use of DFR as a component for dog food was evaluated.

Animals, materials and methods:
Ten healthy adult dogs were fed a diet with varying amounts of DFR (0 %, 5 %, 10 % and 15 %). The food residues were collected in hotels in Crete, ground and solar-dried. The same batch of DFR (Table 1) was used as an ingredient for the experimental diets, which werenbased on poultry meal and rice flour. For the determination of apparent nutrient digestibility, titanium oxide was mixed to the diet at 0.2 %. The diets were fed for three weeks each. Daily amount of feed was calculated and weekly adjusted to maintain body weight (BW). Feed intake was recorded daily. At the end of each feeding period, fresh fecal samples were collected. Polynomial contrasts were calculated for group comparisons (GLM repeated measures; SPSS 22), with P < 0.05 as level of significance.

Results and discussion:
No adverse reactions related to the DFR were observed in the dogs. The daily amount of feed had to be increased at the highest dietary inclusion level of DFR in order to maintain BW of the dogs (Table 2). This might be probably attributed to the reduced apparent digestibility of crude protein and crude fat with increasing amounts of DFR in the diets. Fecal ammonia and L-lactate concentrations were not affected by the diets. Interestingly, the lowest amount of feed to maintain BW was required when the diet 5 % DFR was fed. Also, in this group, highest fecal D-lactate concentrations were measured.

Conclusion:
DFR might be a potential component of dog food, particularly at lower dietary inclusion levels (5 % or less).