UZH-Logo

Maintenance Infos

Food intake, preference patterns and digestion coefficients in captive giraffe (giraffa camelopardalis) offered a tannin-containing pelleted diet


Clauss, Marcus; Flach, E J; Tack, C; Lechner-Doll, M; Streich, W J; Hatt, Jean-Michel (2003). Food intake, preference patterns and digestion coefficients in captive giraffe (giraffa camelopardalis) offered a tannin-containing pelleted diet. Verhandlungsbericht Erkrankungen der Zootiere, 41:333-342.

Abstract

We performed preference trials with 3 adult captive giraffes and a group of 3 juveniles in which the animals could choose between a regular pelleted feed and a pelleted feed of the same composition with an addition of 3 % (original weight) tannic acid. One animal completely refused the new diet item, another animal and the juvenile group ate the new diet item in varying amounts, and one animal ingested increasing amounts of the tannic acid item until it had replaced the regular pellet in its diet nearly completely. However, after 8-16 days, the intake of the new diet item decreased again in those animals that accepted it. For the two adult animals which included the tannic acid containing feed in their diet, overall daily dry matter intake increased significantly by 0.9-1.2 kg. The new diet item had no discernable influence on apparent digestibility coefficients. Our results indicate that the outcome of preference trials depends to a great extent on individual preferences, and on the duration of the choice period. The increase in food intake may have been due to the inclusion of tannic acid, or may simply have been an effect of increased food variety.

We performed preference trials with 3 adult captive giraffes and a group of 3 juveniles in which the animals could choose between a regular pelleted feed and a pelleted feed of the same composition with an addition of 3 % (original weight) tannic acid. One animal completely refused the new diet item, another animal and the juvenile group ate the new diet item in varying amounts, and one animal ingested increasing amounts of the tannic acid item until it had replaced the regular pellet in its diet nearly completely. However, after 8-16 days, the intake of the new diet item decreased again in those animals that accepted it. For the two adult animals which included the tannic acid containing feed in their diet, overall daily dry matter intake increased significantly by 0.9-1.2 kg. The new diet item had no discernable influence on apparent digestibility coefficients. Our results indicate that the outcome of preference trials depends to a great extent on individual preferences, and on the duration of the choice period. The increase in food intake may have been due to the inclusion of tannic acid, or may simply have been an effect of increased food variety.

Downloads

5 downloads since deposited on 02 Dec 2008
4 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, not refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Veterinary Clinic > Department of Small Animals
Dewey Decimal Classification:570 Life sciences; biology
630 Agriculture
Language:English
Date:2003
Deposited On:02 Dec 2008 12:08
Last Modified:07 Sep 2016 08:42
Publisher:Akademie-Verlag
ISSN:0863-2332
Related URLs:http://www.akademie-verlag.de/ (Publisher)
http://www.recherche-portal.ch/ZAD:default_scope:ebi01_prod010015765 (Library Catalogue)
Permanent URL: http://doi.org/10.5167/uzh-3537

Download

[img]
Preview
Content: Published Version
Language: English
Filetype: PDF
Size: 1MB

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