Abstract
A pilot study: Digestion inhibiting effect of silver birch in moose
Highlights
The bark of silver birch (Betula pendula Roth.) is known to contain a phenolic glucoside, platyphylloside, which in vitro inhibits digestion in rumen fluid of several domestic ruminants (SunnerheimSjoberg, 1991; Sunnerheim-Sjoberg et al, 1988; 1995; Bratt & Sunnerheim, 1999; Bratt et al, unpubl.) and moose (Alces alces L) (Sunnerheim et al, unpubl.) and in vivo of rabbits (SunnerheimSjoberg, 1991)
The daily ration before and after the experiment consisted of 1 kg pelleted reindeer fodder (Renfor), 1 kg pelleted sheep fodder (Farfor), 0,8 kg pelleted aspen bark, 0,4 kg beet pulp given twice a day, and 0,5 kg oats and 50 g carotene given in the morning
Two days after the brush-wood had been replaced by the regular fodder, the faecal production returned to initial amounts
Summary
The bark of silver birch (Betula pendula Roth.) is known to contain a phenolic glucoside, platyphylloside, which in vitro inhibits digestion in rumen fluid of several domestic ruminants (SunnerheimSjoberg, 1991; Sunnerheim-Sjoberg et al, 1988; 1995; Bratt & Sunnerheim, 1999; Bratt et al, unpubl.) and moose (Alces alces L) (Sunnerheim et al , unpubl.) and in vivo of rabbits (SunnerheimSjoberg, 1991). A 1 1/2 year moose bull, corralled in a zoo, was fed brushwood of silver birch during four consecutive days. Every day 32 kg of brushwood was given as an ad. The daily ration before and after the experiment consisted of 1 kg pelleted reindeer fodder (Renfor), 1 kg pelleted sheep fodder (Farfor), 0,8 kg pelleted aspen bark, 0,4 kg beet pulp given twice a day, and 0,5 kg oats and 50 g carotene given in the morning.
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