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Effect of Formic Acid with Formalin or Barley Incorporation into Grass Silage on Silage Fermentation and the Performance of Dairy Cows

โœ Scribed by P.M. Haigh; O.D. Davies

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
175 KB
Volume
69
Category
Article
ISSN
0021-8634

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โœฆ Synopsis

Perennial ryegrass was ensiled in three different ways:

(1) with a formic acid with formalin silage additive at 4)0 l/t; (2) with an addition of 50 kg/t ground barley; and

(3) no-additive. Formic acid with formalin produced well-fermented silage, which, when subsequently given to lactating dairy cows significantly enhanced daily dry matter (DM) intake and butterfat, protein and butterfat plus protein output and reduced the liveweight decrease experienced with the other treatments. The addition of ground barley at ensilage provided less benefit in terms of fermentation, but had a more pronounced effect upon daily silage DM intake and milk yield than formic acid with formalin treatment. The daily liveweight losses of cows given the non-additive-treated and ground-barleytreated silages were significantly higher than those given formic acid with formalin treated silage. Silage treatment had no significant effect upon cow fertility.

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Data from four experiments conducted at ADAS Liscombe Research Centre during 1977-1982 were used to compare unwilted silage treated with either formic acid (FA), a complex formic salt (FS) and formic acid with formalin (FF) with non-additive-treated silage (C), made from herbage with dry matter (DM)

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Data from seven experiments conducted at ADAS Liscombe Centre during 1980-1983 were used to compare formic acid with formalin-treated unwilted (FF) and wilted silage (WFF) with wilted non-additive-treated (W) silage made from herbage [dry matter (DM) of 172 g/kg and water-soluble carbohydrate (WSC)