Stoffwechsel von Propylenglykol im Pansen von Kühen

Voigt, J.; Piatkowski, B.

doi:10.1080/17450397309424266

Cited by 2 publications

(1 citation statement)

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“…The higher feed utilization of the polyol diet in the production trial could be contributed in part to the absorption of polyols in the rumen. Most of the propylenglykol is absorbed in the rumen (Emery et al 1967, Clapperton and Czercawski 1972, Voigt and Piatkowski 1973 and supplementation of it in the concentrate mixture increased the utilization of metabolic energy when feeding the concentrate at high levels (1 kg/3 kg milk) .…”

Section: Discussionmentioning

confidence: 99%

A polyol mixture or molasses treated beet pulp in the silage based diet of dairy cows: I. The effect on the feed utilization, milk yield and blood values

Tuori

Poutiainen

1977

AFSci

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Abstract. This study investigated the effect of a polyol mixture or molasses treated beet pulp on the feed utilization, milk yield and blood values. 24 cows were divided into 3 groups. Hay was given at 2 kg/d, silage ad lib. and concentrate mixture at 7 8 kg according to the milk yield. The control group had grain (barley-oat) concentrate mixture, the molasses group had grain supplemented with 29 % dried molasses beet pulp and for the polyol group grain was supplemented with 25 % dried beet pulp treated with mixture of sugar alcohols.A 2 weeks standardisation period was followed by 12 of comparison. 12 of the cows were also in a digestibility trial in the later part of the comparison period.Feed intake was heavily reduced in the molasses group and hence the milk yield was significantly lower (P < 0,05) than in the polyol or control groups (19,5, 21,2 and 21,2 kg FCM/d). The mean consumption of polyols was 483 g/d and that of sugars from the molasses beet pulp was 410 g/d.The feed utilization was significantly lower (P < 0,05) in the control group than in the polyol or molasses groups. The consumptions of f.f.u./kg FCM were correspondingly 0,407, 0,375 and 0,373.Digestibility of nitrogen free extracts was significantly higher for the polyol group than for the control group (81,4 and 78,1 %). For molasses group digestibility of NFE was 78,5 %. Digestibility of OM was correspondingly 76,2, 73,6 and 74,3.Rumen butyric acid formation was higher in the polyol group than in the molasses or control groups, although the differences were not statistically sinificant.The blood and plasma parameters studied were haemoglobin, PVC, ketone bodies in blood, glucose, total protein, urea-N and uric acid in plasma.Plasma urea-N was higher (P < 0,01) in the control than the polyol or molasses groups. In glucose or ketone bodies concentration there were no treatment induced differences.

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Section: Discussionmentioning

confidence: 99%