Quantitative aspects of ruminant digestion and metabolism - Phần 7

... standard of the product, and the use of the name by the USDA implies no approval of the product, and exclusion of others that may be suitable. ß CAB International 2005. Quantitative Aspects of ... (Van Nevel and Demeyer, 1 977 ; Russell and Martin, 1984), but most active ammonia-producing bacteria were Gram-negative (Bla- den et al., 1961) and resistant to monensin (Ch...

Ngày tải lên: 07/11/2013, 23:15

... DC, USA. Library of Congress Cataloging-in-Publication Data Quantitative aspects of ruminant digestion and metabolism / edited by J. Dijkstra, J. M. Forbes, and J. France .- -2 nd ed. p. cm. Includes ... Other ruminants Non-ruminants Non-ruminants Buffalo Sheep Goat Cow Fig. 1.1. Relative contribution of various groups of ruminants and non-ruminants to the producti...

Ngày tải lên: 24/10/2013, 17:15

... because of its role both in the processes of digestion and absorp- tion and in the expression of voluntary feed consumption. The Nature of Digesta The ruminant GI tract consists of a succession of ... sheep given chopped ( * -- -- * ) or ground ( * — * ) lucerne hay (Van Soest, 1982); and (c) digesta leaving the stomach of sheep given chopped ( * -- -- * ) or g...

Ngày tải lên: 24/10/2013, 17:15

... incubations â Short- or medium-term experiments â Non-steady-state conditions 2. Continuous cultures â Medium- or long-term experiments â Quasi-steady-state conditions â Types: . 2a. The semi-permeable ... cultures, and enable the study of long-term (weeks) effects of factors affecting the microbial population and the digestion of nutrients under controlled conditions of pH, tur...

Ngày tải lên: 29/10/2013, 00:15

... process (Sutherland, 1988). Close relationships between FPR of water and FPR of non- LP were reported by Cherney et al. (1991) and de Vega and Poppi (19 97) . The existence of back-flow of LP from the ... one of the unique aspects of ruminant physiology is the circuitous route often followed by individual particles in the alimentary ß CAB International 2005. Quantitativ...

Ngày tải lên: 29/10/2013, 00:15

... 171 ). For measurement of VFA production by radioactive isotopic tracer tech- niques, Bruce et al. (19 87) recommended the use of 1 or 2- 14 C acetate, 2- 14 C propionate and1 - 14 C butyrate. 2-3 ... Cotta, M.A. and Hespell, R.B. (1986) Protein and amino acid metabolism of rumen bacteria. In: Milligan, L.P., Grovum, W.L. and Dobson, A. (eds) Control of Diges- tio...

Ngày tải lên: 07/11/2013, 23:15

... Quantitative Aspects of Ruminant Digestion and Metabolism, 2nd edition (eds J. Dijkstra, J.M. Forbes and J. France) 2 07 some comminution of digesta particles occurs by repeated rhythmic contrac- tions and ... examples of this type of neutra- listic interaction, the degradation of oxalate by Oxalobacter formigenes (Dawson et al., 1980) and 3-hydroxy- 4-1 (H)-pyri...

Ngày tải lên: 07/11/2013, 23:15

... conc. D-ST grass D-ST maize D-ST conc. D-ST grass D-ST maize D-ST conc. D-P grass D-P maize D-P conc. D-P grass D-P maize D-P conc. Large particles Small particles S-ST/SCS-NDF S-P Cellul. Micr. ... J.L. and Baldwin, R.L. (1988) Modeling of rumen water kinetics and effects of rumen pH changes. Journal of Dairy Science 71 , 1 178 –1188. Baldwin, R.L. (1995) Modeling Ruminant Dige...

Ngày tải lên: 15/12/2013, 08:15

... Lindsay, D.B. and West, C.F. (19 67) Rates of entry and oxidation of acetate, glucose, D (-) ß-hydroxybutyrate, palmitate, oleate and stearate and rates of production and oxidation of propionate and butyrate ... Physiology 215, 874 –880. Bergman, E.N., Katz, M.L. and Kaufman, C.F. (1 970 ) Quantitative aspects of hepatic and portal glucose metabolism and tu...

Ngày tải lên: 15/12/2013, 08:15

... D.B. and West, C.E. (1967a) Rates of entry and oxidation of acetate, glucose, D (-) -b-hydroxy-butyrate, palmitate, oleate and stearate, and rates of production and oxidation of propionate and ... emphasize the quantitative aspects of NEFA metabolism. Composition and Sources of Plasma NEFA and TAG The metabolically most active pool of long-chain fatty ac...

Ngày tải lên: 15/12/2013, 09:15