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Cereal Digestion in the Ruminant: 2. Effect of Formaldehyde Treatment of Barley upon Rumen Degradability and Nutrient Flow to the Intestine of Sheep

Treating barley with formaldehyde at rates up to 18 ml/kg grain led to decreases in in situ protein degradability and, to a lesser extent, in starch degradability. Nutrient flow to the intestine was estimated with abomasally cannulated sheep using ytterbium acetate and cobalt EDTA as markers. In... Full description

1st Person: Morgan, D. J.
Additional Persons: Cody, R. F.; Upton, P. K.
Source: in Irish journal of agricultural research Vol. 28, No. 1 (1989), p. 43-48
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Type of Publication: Article
Language: English
Published: 1989
Online: Volltext
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Summary: Treating barley with formaldehyde at rates up to 18 ml/kg grain led to decreases in in situ protein degradability and, to a lesser extent, in starch degradability. Nutrient flow to the intestine was estimated with abomasally cannulated sheep using ytterbium acetate and cobalt EDTA as markers. In Experiment 1, a diet (g as fed/day) of barley (800), soyabean meal (100) and hay (100) was fed either untreated or treated with formaldehyde (8 ml/kg barley; 15 ml/kg soyabean meal). Starch flow to the abomasum was unaffected (28 g/day vs 31 g/day) but there was a trend towards a higher protein flow on the treated diet (148 g/day vs 125 g/day). In Experiment 2, barley (700 g/day) was fed untreated or treated with formaldehyde at 6, 12 and 18 ml/kg together with dried grass (300 g/day). Starch flow (32, 48, 36 and 31 g/day) was unaffected by treatment, but crude protein flow was significantly higher at the 6 and 12 ml/kg levels of application (116, 133, 130 and 126 g/day).
Physical Description: Online-Ressource
ISSN: 0578-7483

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