Correcting the calculation of extent of degradation to account for particulate matter loss at zero time when applying the polyester bag method

Journal of Animal Science

Volumn 77, Issue 12, 1999, Pages 3385-3391

  Dhanoa, M S ^a   France, J ^b   Lopez S ^c   Dijkstra, J ^d   Lister, S J ^a   Davies, D R ^a   Bannink, A ^d  

^a ABERYSTWYTH UNIVERSITY   (United Kingdom)

^b UNIVERSITY OF READING   (United Kingdom)

^c UNIVERSITY OF LEÓN   (Spain)

^d WAGENINGEN UNIVERSITY   (Netherlands)

Author keywords

Dry Matter Digestion; Mathematical Models; Rumen Digestion; Ruminant Feeding

Indexed keywords

BOVIDAE; LOLIUM; MEDICAGO SATIVA; POACEAE; TRIFOLIUM REPENS;

POLYESTER;

ANIMAL; ANIMAL FOOD; ARTICLE; BIOLOGICAL MODEL; MATHEMATICS; METABOLISM; RUMINANT STOMACH;

ANIMAL FEED; ANIMALS; MATHEMATICS; MODELS, BIOLOGICAL; POLYESTERS; RUMEN;

EID: 0033256836     PISSN: 00218812     EISSN: None     Source Type: Journal    
DOI: 10.2527/1999.77123385x     Document Type: Article

References (19)

1. Cockburn, J. E., M. S. Dhanoa, J. France, and S. López. 1993. Overestimation of solubility by dacron bag methodology. Anim. Prod. 56:466-467.
2. Dhanoa, M. S. 1988. On the analysis of dacron bag data for low degradability feeds. Grass Forage Sci. 43:441-444.
3. Dhanoa, M. S., J. France, J. Dijkstra, and S. López. 1996. Consequences of model choice when analysing polyester bag data. Br. J. Nutr. 75:142-148.
4. Dhanoa, M. S., J. France, R. C. Siddons, S. López, and J. G. Buchanan-Smith. 1995. A nonlinear compartmental model to describe forage degradation kinetics during incubation in polyester bags in the rumen. Br. J. Nutr. 73:3-15.
5. France, J., M. S. Dhanoa, M. K. Theodorou, S. J. Lister, D. R. Davies, and D. Isac. 1993. A model to interpret gas accumulation profiles associated with in vitro degradation of ruminant feeds. J. Theor. Biol. 163:99-111.
6. France, J., S. López, J. Dijkstra, and M. S. Dhanoa. 1997. Particulate matter loss and the nylon bag method. Br. J. Nutr. 78:1033-1037.
7. France, J., J.H.M. Thornley, S. López, R. C. Siddons, M. S. Dhanoa, P. J. Van Soest, and M. Gill. 1990. On the two compartment model for estimating the rate and extent of feed degradation in the rumen. J. Theor. Biol. 146:269-287.
8. Lister, S. J., R. J. Barnes, M. S. Dhanoa, and R. Sanderson. 1992. Near infrared spectra of liquid extracts using standardised spectra of dry residues. In: I. Murray and I. A. Crowe (Ed.) Making Light Work: Advances in Near Infrared Spectroscopy. pp 284-290. VCH (UK) Ltd, Cambridge, U.K.
9. López, S., M. D. Carro, J. S. Gonzalez, and F. J. Ovejero. 1998. Comparison of different in vitro and in situ methods to estimate the extent and rate of degradation of hays in the rumen. Anim. Feed Sci. Technol. 73:99-113.
10. López, S., J. France, and M. S. Dhanoa. 1994. A correction for particulate matter loss when applying polyester-bag method. Br. J. Nutr. 71:135-137.
11. López, S., J. France, M. S. Dhanoa, F. Mould, and J. Dijkstra. 1999. Comparison of mathematical models to describe disappearance curves obtained using the polyester bag technique for incubating feeds in the rumen. J. Anim. Sci. 77:1875-1888.
12. Lopez, S., F. D. deB. Hovell, B. Manyuchi, and R. I. Smart. 1995. Comparison of sample preparation methods for the determination of the rumen degradation characteristics of fresh and ensued forages by the nylon bag technique. Anim. Sci. 60:439-450.
13. McDonald, I. 1981. A revised model for the estimation of protein degradability in the rumen. J. Agric. Sci. 96:251-252.
14. Ørskov, E. R., and I. McDonald. 1979. The estimation of protein degradabihty in the rumen from incubation measurements weighted according to rates of passage. J. Agric. Sci. 92:449-503.
15. Quin, J. I., J. G. Van der Wath, and S. Myburgh. 1938. Studies on the alimentary tract of Merino sheep in South Africa. IV. Description of experimental technique. Onderstepoort J. Vet. Sci. Anim. Ind. 11:341-370.
16. Stefanon, B., A. N. Pell, and P. Schofield. 1996. Effect of maturity on digestion kinetics of water-soluble and water-insoluble fractions of alfalfa and brome hay. J. Anim. Sci. 74:1104-1115.
17. Van Keuren, R. W., and W. W. Heinemann. 1962. Study of a nylon bag technique for in vivo estimation of forage digestibility. J. Anim Sci. 21:340-345.
18. Weisbjerg, M. R., T. Hvelplund, and B. M. Bibby. 1998. Hydrolysis and fermentation rate of glucose, sucrose and lactose in the rumen. Acta Agric. Scand. 48:12-18.
19. Wetzel, D. L. 1983. Near infrared reflectance analysis: Sleeper among spectroscopic techniques. Anal. Chem. 55:1165.