Header

UZH-Logo

Maintenance Infos

Untersuchungen zur Futteraufnahme, Verdaulichkeit, Ingestapassage und Partikelgrösse beim Elch (Alces alces) bei unterschiedlichen Raufutter-Rationen


Kohlschein, G M. Untersuchungen zur Futteraufnahme, Verdaulichkeit, Ingestapassage und Partikelgrösse beim Elch (Alces alces) bei unterschiedlichen Raufutter-Rationen. 2011, University of Zurich, Vetsuisse Faculty.

Abstract

Elche (Alces alces) werden immer wieder als äusserst anspruchsvolle Pfleglinge in Menschenobhut beschrieben, was vor allem an ihrer besonderen Verdauungsphysiologie und den daraus resultierenden Fütterungsansprüchen liegt. Elche verweigern laut Literatur oft die angebotenen Raufuttermittel, was indirekt zu einer überproportionalen Aufnahme von leichtverdaulichem Futter und damit chronischer Pansenazidose führen kann und ein Grund für die geringe Lebenserwartung von Elchen in Menschenobhut sein könnte. Ziel der vorliegenden Studie war es daher, anhand von Fütterungsversuchen an vier Elchen nicht nur verdauungsphysiologische Basisdaten von Elchen zu mehren, sondern zu überprüfen, ob eine reine Raufutter-Fütterung tatsächlich bei diesen Tieren nicht möglich ist. Die verwendeten Futterrationen bestanden aus der zootypischen mit Mischfutter, und reinen Raufutterrationen aus Luzerneheu, Luzerne-/Gras-/Laubheu, und nur aus Laubheu. Während Grasheu nicht aufgenommen wurde, lag die Aufnahme an verdaulicher Energie (DE) bei Luzernheu mit 0.64-1.13 DE MJ kg-0.75 d-1 über dem geschätzten Erhaltungsbedarf von 0.6. Die Ergebnisse widersprechen bisherigen Berichten aus der Literatur und lassen vermuten, dass die Qualität des angebotenen Luzerneheus seine Akzeptanz wesentlich beeinflusst. Zugleich ermutigen sie, Elche in Menschenobhut hauptsächlich mit Raufutter zu füttern, wobei ein vielfältiges Raufutterangebot zu bevorzugen ist, da es zu einer höheren Futteraufnahme führen dürfte. = Moose (Alces alces) are regularly described as problematic animals in captivity, mainly because of their particular digstive physiology and the resulting nutritional needs. According to the literature, moose regularly reject forages offered in captivity, which indirectly leads to an overproportional ingestion of easily digestible feeds and thus chronic acidosis, and thus might be the cause of their low life expectancy in captivity. By feeding experiments in four animals, this study aimed at not only increasing physiological data on moose digestion, but also at testing whether maintaining these animals on roughage-only diets is really impossible. The diets used consisted of the typical zoo ration with mixed feeds, and exclusive diets of lucerne hay, lucerne-/grass-/browse hay, and browse hay only. While it was confirmed that moose do not ingest grass hay in relevant amounts, digestible energy (DE) intake on lucerne hay was, at 0.64-1.13 DE MJ kg-0.75 d-1, above the estimated maintenance requirement of 0.6. The results contradict previous reports in the literature and suggest that the quality of the lucerne hay offered significantly influences its acceptance. At the same time the results promote feeding moose in captivity forage-based diets. In doing so, a variety of forages should be offered, as this likely increases food intake. = Moose (Alces alces) are regularly described as problematic animals in captivity, mainly because of their particular digstive physiology and the resulting nutritional needs. According to the literature, moose regularly reject forages offered in captivity, which indirectly leads to an overproportional ingestion of easily digestible feeds and thus chronic acidosis, and thus might be the cause of their low life expectancy in captivity. By feeding experiments in four animals, this study aimed at not only increasing physiological data on moose digestion, but also at testing whether maintaining these animals on roughage-only diets is really impossible. The diets used consisted of the typical zoo ration with mixed feeds, and exclusive diets of lucerne hay, lucerne-/grass-/browse hay, and browse hay only. While it was confirmed that moose do not ingest grass hay in relevant amounts, digestible energy (DE) intake on lucerne hay was, at 0.64-1.13 DE MJ kg-0.75 d-1 , above the estimated maintenance requirement of 0.6. The results contradict previous reports in the literature and suggest that the quality of the lucerne hay offered significantly influences its acceptance. At the same time the results promote feeding moose in captivity forage-based diets. In doing so, a variety of forages should be offered, as this likely increases food intake.

Abstract

Elche (Alces alces) werden immer wieder als äusserst anspruchsvolle Pfleglinge in Menschenobhut beschrieben, was vor allem an ihrer besonderen Verdauungsphysiologie und den daraus resultierenden Fütterungsansprüchen liegt. Elche verweigern laut Literatur oft die angebotenen Raufuttermittel, was indirekt zu einer überproportionalen Aufnahme von leichtverdaulichem Futter und damit chronischer Pansenazidose führen kann und ein Grund für die geringe Lebenserwartung von Elchen in Menschenobhut sein könnte. Ziel der vorliegenden Studie war es daher, anhand von Fütterungsversuchen an vier Elchen nicht nur verdauungsphysiologische Basisdaten von Elchen zu mehren, sondern zu überprüfen, ob eine reine Raufutter-Fütterung tatsächlich bei diesen Tieren nicht möglich ist. Die verwendeten Futterrationen bestanden aus der zootypischen mit Mischfutter, und reinen Raufutterrationen aus Luzerneheu, Luzerne-/Gras-/Laubheu, und nur aus Laubheu. Während Grasheu nicht aufgenommen wurde, lag die Aufnahme an verdaulicher Energie (DE) bei Luzernheu mit 0.64-1.13 DE MJ kg-0.75 d-1 über dem geschätzten Erhaltungsbedarf von 0.6. Die Ergebnisse widersprechen bisherigen Berichten aus der Literatur und lassen vermuten, dass die Qualität des angebotenen Luzerneheus seine Akzeptanz wesentlich beeinflusst. Zugleich ermutigen sie, Elche in Menschenobhut hauptsächlich mit Raufutter zu füttern, wobei ein vielfältiges Raufutterangebot zu bevorzugen ist, da es zu einer höheren Futteraufnahme führen dürfte. = Moose (Alces alces) are regularly described as problematic animals in captivity, mainly because of their particular digstive physiology and the resulting nutritional needs. According to the literature, moose regularly reject forages offered in captivity, which indirectly leads to an overproportional ingestion of easily digestible feeds and thus chronic acidosis, and thus might be the cause of their low life expectancy in captivity. By feeding experiments in four animals, this study aimed at not only increasing physiological data on moose digestion, but also at testing whether maintaining these animals on roughage-only diets is really impossible. The diets used consisted of the typical zoo ration with mixed feeds, and exclusive diets of lucerne hay, lucerne-/grass-/browse hay, and browse hay only. While it was confirmed that moose do not ingest grass hay in relevant amounts, digestible energy (DE) intake on lucerne hay was, at 0.64-1.13 DE MJ kg-0.75 d-1, above the estimated maintenance requirement of 0.6. The results contradict previous reports in the literature and suggest that the quality of the lucerne hay offered significantly influences its acceptance. At the same time the results promote feeding moose in captivity forage-based diets. In doing so, a variety of forages should be offered, as this likely increases food intake. = Moose (Alces alces) are regularly described as problematic animals in captivity, mainly because of their particular digstive physiology and the resulting nutritional needs. According to the literature, moose regularly reject forages offered in captivity, which indirectly leads to an overproportional ingestion of easily digestible feeds and thus chronic acidosis, and thus might be the cause of their low life expectancy in captivity. By feeding experiments in four animals, this study aimed at not only increasing physiological data on moose digestion, but also at testing whether maintaining these animals on roughage-only diets is really impossible. The diets used consisted of the typical zoo ration with mixed feeds, and exclusive diets of lucerne hay, lucerne-/grass-/browse hay, and browse hay only. While it was confirmed that moose do not ingest grass hay in relevant amounts, digestible energy (DE) intake on lucerne hay was, at 0.64-1.13 DE MJ kg-0.75 d-1 , above the estimated maintenance requirement of 0.6. The results contradict previous reports in the literature and suggest that the quality of the lucerne hay offered significantly influences its acceptance. At the same time the results promote feeding moose in captivity forage-based diets. In doing so, a variety of forages should be offered, as this likely increases food intake.

Statistics

Downloads

982 downloads since deposited on 08 Jan 2012
130 downloads since 12 months
Detailed statistics

Additional indexing

Other titles:Study on feed intake, digestibility, ingesta passage and particle size in moose (Alces alces) with various roughage rations
Item Type:Dissertation
Referees:Hatt J M, Südekum K H
Communities & Collections:05 Vetsuisse Faculty > Veterinary Clinic > Department of Small Animals
Dewey Decimal Classification:570 Life sciences; biology
630 Agriculture
Language:German
Date:2011
Deposited On:08 Jan 2012 14:21
Last Modified:05 Apr 2016 15:19
Number of Pages:132
Related URLs:http://opac.nebis.ch/F/?local_base=NEBIS&CON_LNG=GER&func=find-b&find_code=SYS&request=006401179

Download

Preview Icon on Download
Preview
Filetype: PDF
Size: 2MB

TrendTerms

TrendTerms displays relevant terms of the abstract of this publication and related documents on a map. The terms and their relations were extracted from ZORA using word statistics. Their timelines are taken from ZORA as well. The bubble size of a term is proportional to the number of documents where the term occurs. Red, orange, yellow and green colors are used for terms that occur in the current document; red indicates high interlinkedness of a term with other terms, orange, yellow and green decreasing interlinkedness. Blue is used for terms that have a relation with the terms in this document, but occur in other documents.
You can navigate and zoom the map. Mouse-hovering a term displays its timeline, clicking it yields the associated documents.

Author Collaborations