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The effect of a high concentrate diet and different fat sources on rumen fermentation in vitro
 
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1
Institute of Animal Physiology, Slovak Academy of Sciences, Soltesovej 4-6, 040 01 Košice, Slovak Republic
 
2
The August Cieszkowski Agricultural University of Poznań, Department of Animal Nutrition and Feed Management, Wołyńska 33, 60-637 Poznań, Poland
 
3
The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, 05-110 Jabłonna, Poland
 
 
Publication date: 2006-05-25
 
 
Corresponding author
D. Jalč   

Institute of Animal Physiology, Slovak Academy of Sciences, Soltesovej 4-6, 040 01 Košice, Slovak Republic
 
 
J. Anim. Feed Sci. 2006;15(Suppl. 1):137-140
 
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ABSTRACT
The experiment was carried out on a Rusitec (rumen simulation technique). The effect of diet (fresh lucerne plus maize, 40:60%) and fat sources (linseed LO, rapeseed RO, fish FO oils, 5% wt·wt-1) on rumen fermentation was studied. To ensure a steady-state within the Rusitec vessels a 7-day adaptation period preceded the 6-day collection period. The diet and a 5% addition of LO, RO or FO were added to the respective fermentation vessels daily. The results showed that oil supplementation (LO, RO, FO) did not affect some basal parameters of rumen fermentation (pH, total VFA production, dry matter and detergent fibre digestibility), but significantly reduced the degradation of cellulose. Among the oils, mainly LO significantly reduced mol% of acetate, increased the mol% of propionate, however, all three oils significantly reduced the A/P ratio. The oils supplemented to the high concentrate diet decreased (P < 0.001) the efficiency of microbial protein synthesis.
 
CITATIONS (5):
1.
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Tropical Animal Health and Production
 
4.
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Italian Journal of Animal Science
 
5.
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Laurent-Philippe Broudiscou, Alain Quinsac, Valérie Berthelot, Patrick Carré, Sylvie Dauguet, Corinne Peyronnet
OCL
 
ISSN:1230-1388
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