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1 Cornell University, Department of Animal Science and Division of Nutritional Sciences, Ithaca, NY
There is a need to standardize the NDF procedure. Procedures have varied because of the use of different amylases in attempts to remove starch interference. The original Bacillus subtilis enzyme Type IIIA (XIA) no longer is available and has been replaced by a less effective enzyme. For fiber work, a new enzyme has received AOAC approval and is rapidly displacing other amylases in analytical work. This enzyme is available from Sigma (Number A3306, Sigma Chemical Co., St. Louis, MO). The original publications for NDF and ADF (43, 53) and the Agricultural Handbook 379 (14) are obsolete and of historical interest only. Up to date procedures should be followed. Triethylene glycol has replaced 2-ethoxyethanol because of reported toxicity. Considerable development in regard to fiber methods has occurred over the past 5 yr because of a redefinition of dietary fiber for man and monogastric animals that includes lignin and all polysaccharides resistant to mammalian digestive enzymes. In addition to NDF, new improved methods for total dietary fiber and nonstarch polysaccharides including pectin and ß-glucans now are available. The latter are also of interest in rumen fermentation. Unlike starch, their fermentations are like that of cellulose but faster and yield no lactic acid. Physical and biological properties of carbohydrate fractions are more important than their intrinsic composition.
Key Words: dietary fiber neutral detergent fiber nonstarch polysaccharides
Submitted on August 31, 1990
Accepted on February 6, 1991
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L. Holtshausen, A. V. Chaves, K. A. Beauchemin, S. M. McGinn, T. A. McAllister, N. E. Odongo, P. R. Cheeke, and C. Benchaar Feeding saponin-containing Yucca schidigera and Quillaja saponaria to decrease enteric methane production in dairy cows J Dairy Sci, June 1, 2009; 92(6): 2809 - 2821. [Abstract] [Full Text] [PDF] |
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G. A. Broderick and S. M. Reynal Effect of source of rumen-degraded protein on production and ruminal metabolism in lactating dairy cows J Dairy Sci, June 1, 2009; 92(6): 2822 - 2834. [Abstract] [Full Text] [PDF] |
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K. J. Hubbard, P. J. Kononoff, A. M. Gehman, J. M. Kelzer, K. Karges, and M. L. Gibson Short communication: The effect of feeding high protein distillers dried grains on milk production of Holstein cows J Dairy Sci, June 1, 2009; 92(6): 2911 - 2914. [Abstract] [Full Text] [PDF] |
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G. I. Zanton and A. J. Heinrichs Evaluation of modeling procedure for fitting in situ feed degradation profiles J Anim Sci, June 1, 2009; 87(6): 2080 - 2088. [Abstract] [Full Text] [PDF] |
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B. Fernandez, R. Bodas, O. Lopez-Campos, S. Andres, A. R. Mantecon, and F. J. Giraldez Vinasse added to dried sugar beet pulp: Preference rate, voluntary intake, and digestive utilization in sheep J Anim Sci, June 1, 2009; 87(6): 2055 - 2063. [Abstract] [Full Text] [PDF] |
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J. L. Anderson, K. F. Kalscheur, A. D. Garcia, D. J. Schingoethe, and A. R. Hippen Ensiling characteristics of wet distillers grains mixed with soybean hulls and evaluation of the feeding value for growing Holstein heifers J Anim Sci, June 1, 2009; 87(6): 2113 - 2123. [Abstract] [Full Text] [PDF] |
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M. E. Martinez, M. J. Ranilla, S. Ramos, M. L. Tejido, C. Saro, and M. D. Carro Evaluation of procedures for detaching particle-associated microbes from forage and concentrate incubated in Rusitec fermenters: Efficiency of recovery and representativeness of microbial isolates J Anim Sci, June 1, 2009; 87(6): 2064 - 2072. [Abstract] [Full Text] [PDF] |
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S. D. Cash, P. L. Bruckner, D. M. Wichman, K. D. Kephart, J. E. Berg, R. Hybner, A. N. Hafla, L. M. M. Surber, D. L. Boss, G. R. Carlson, et al. Registration of 'Willow Creek' Forage Wheat Journal of Plant Registrations, May 1, 2009; 3(2): 185 - 190. [Abstract] [Full Text] [PDF] |
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G. I. Zanton and A. J. Heinrichs Digestion and nitrogen utilization in dairy heifers limit-fed a low or high forage ration at four levels of nitrogen intake J Dairy Sci, May 1, 2009; 92(5): 2078 - 2094. [Abstract] [Full Text] [PDF] |
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K. A. Beauchemin, S. M. McGinn, C. Benchaar, and L. Holtshausen Crushed sunflower, flax, or canola seeds in lactating dairy cow diets: Effects on methane production, rumen fermentation, and milk production J Dairy Sci, May 1, 2009; 92(5): 2118 - 2127. [Abstract] [Full Text] [PDF] |
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I. Halachmi, E. Shoshani, R. Solomon, E. Maltz, and J. Miron Feeding soyhulls to high-yielding dairy cows increased milk production, but not milking frequency, in an automatic milking system J Dairy Sci, May 1, 2009; 92(5): 2317 - 2325. [Abstract] [Full Text] [PDF] |
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M. Blanch, S. Calsamiglia, N. DiLorenzo, A. DiCostanzo, S. Muetzel, and R. J. Wallace Physiological changes in rumen fermentation during acidosis induction and its control using a multivalent polyclonal antibody preparation in heifers J Anim Sci, May 1, 2009; 87(5): 1722 - 1730. [Abstract] [Full Text] [PDF] |
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T. L. Stubbs, A. C. Kennedy, P. E. Reisenauer, and J. W. Burns Chemical Composition of Residue from Cereal Crops and Cultivars in Dryland Ecosystems Agron. J., April 3, 2009; 101(3): 538 - 545. [Abstract] [Full Text] [PDF] |
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J. E. Williams, D. E. Spiers, L. N. Thompson-Golden, T. J. Hackman, M. R. Ellersieck, L. Wax, D. P. Colling, J. B. Corners, and P. A. Lancaster Effects of Tasco in Alleviation of Heat Stress in Beef Cattle Professional Animal Scientist, April 1, 2009; 25(2): 109 - 117. [Abstract] [PDF] |
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W. Z. Yang and K. A. Beauchemin Increasing physically effective fiber content of dairy cow diets through forage proportion versus forage chop length: Chewing and ruminal pH J Dairy Sci, April 1, 2009; 92(4): 1603 - 1615. [Abstract] [Full Text] [PDF] |
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G. B. Penner, L. L. Guan, and M. Oba Effects of feeding Fermenten on ruminal fermentation in lactating Holstein cows fed two dietary sugar concentrations J Dairy Sci, April 1, 2009; 92(4): 1725 - 1733. [Abstract] [Full Text] [PDF] |
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G. B. Huntington, K. Magee, A. Matthews, M. Poore, and J. Burns Urea metabolism in beef steers fed tall fescue, orchardgrass, or gamagrass hays J Anim Sci, April 1, 2009; 87(4): 1346 - 1353. [Abstract] [Full Text] [PDF] |
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E. Molina-Alcaide, M. R. Pascual, G. Cantalapiedra-Hijar, E. Y. Morales-Garcia, and A. I. Martin-Garcia Effects of concentrate replacement by feed blocks on ruminal fermentation and microbial growth in goats and single-flow continuous-culture fermenters J Anim Sci, April 1, 2009; 87(4): 1321 - 1333. [Abstract] [Full Text] [PDF] |
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