Microbial fermentation in the rumen

Intérêts et limites des fermenteurs à flux semi-continu de type Rusitec dans l'étude des fermentations du rumen

“…Dans la méthode originale, les auteurs préconi-sent l'utilisation de tissus de gaze de nylon à 1 perforation/mm (Czerkawski & Breckenridge, 1977;Czerkawski, 1984). Le diamètre des mailles, non précisé, est probablement supé-rieur à 500 gm.…”

Lipid metabolism in the rumen: New insights on lipolysis and biohydrogenation with an emphasis on the role of endogenous plant factors

“…BH has been estimated at 600 and 900 g/kg of PUFA, and only contributes to a small extent to the recycling of metabolic hydrogen because only 1-2% of it is used for this purpose (Czerkawski, 1984). Harvatine and Allen (2006) completed an in vivo experiment with lactating dairy cows to determine rates of FA biohydrogenation of fat supplements with different grades of unsaturation, and developed a kinetic model of ruminal BH.…”

Influence of substrate and microbial interaction on efficiency of rumen microbial growth

“…This complexity is further increased by changes in C and k with time after feeding because of decreasing particle size with progressive digestion and changes in saliva flow. Compartment B may serve as a transport or shuttle compartment between A and C (Czerkawski, 1984 (Kennedy et al, 1976 ;Kennedy and Milligan, 1978 ;Harrison et al, 1975) (fig. 2) (Faichney and Griffiths, 1978 Zinn and Owens (1983).…”