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Investigations on rumen health of different wild ruminants in relation to feeding management


Schilcher, Barbara; Baumgartner, Katrin; Geyer, Hans; Liesegang, Annette (2013). Investigations on rumen health of different wild ruminants in relation to feeding management. Journal of Zoo and Aquarium Research, 3(1):28-30.

Abstract

In this study, the rumen metabolism of four ruminant species – blackbuck (Antilope cervicapra), barbary sheep (Ammotragus lervia), sika deer (Cervus nippon dybowskii) and addax antelope (Addax nasomaculatus) – from the Nuremberg Zoo was investigated in relation to their feeding management. Parameters of microbial fermentation in the rumen as well as rumen tissue samples were examined. Additionally, the offered and refused food was weighed, analysed and a dietary intake calculation for these ruminant species was performed. Three of the four ruminant species – blackbuck, barbary sheep and addax antelope – all grazers, showed severe characteristics of subacute ruminal acidosis due to a diet high in fermentable carbohydrates (NfE ≥ 55% of DM basis) and low in fibre (XF ≤ 18% of DM basis). This was indicated by numerous microabscesses within the rumen mucosa. These results demonstrate that subacute ruminal acidosis is still a severe problem in captive wild ruminants, which are often fed inappropriate diets with a high concentration of easily digestible carbohydrates.

Abstract

In this study, the rumen metabolism of four ruminant species – blackbuck (Antilope cervicapra), barbary sheep (Ammotragus lervia), sika deer (Cervus nippon dybowskii) and addax antelope (Addax nasomaculatus) – from the Nuremberg Zoo was investigated in relation to their feeding management. Parameters of microbial fermentation in the rumen as well as rumen tissue samples were examined. Additionally, the offered and refused food was weighed, analysed and a dietary intake calculation for these ruminant species was performed. Three of the four ruminant species – blackbuck, barbary sheep and addax antelope – all grazers, showed severe characteristics of subacute ruminal acidosis due to a diet high in fermentable carbohydrates (NfE ≥ 55% of DM basis) and low in fibre (XF ≤ 18% of DM basis). This was indicated by numerous microabscesses within the rumen mucosa. These results demonstrate that subacute ruminal acidosis is still a severe problem in captive wild ruminants, which are often fed inappropriate diets with a high concentration of easily digestible carbohydrates.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Institute of Veterinary Anatomy
05 Vetsuisse Faculty > Institute of Animal Nutrition
Dewey Decimal Classification:570 Life sciences; biology
630 Agriculture
Language:English
Date:24 July 2013
Deposited On:16 Aug 2013 08:17
Last Modified:05 Apr 2016 16:53
Publisher:EAZA
Official URL:http://www.jzar.org/jzar/article/view/14

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