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Cited by 341Ruminant Nutrition and Digestive PhysiologyAnimal Nutrition and PhysiologyMilk Quality and Mastitis in Dairy Cows

Intake Limitations, Feeding Behavior, and Rumen Function of Cows Challenged with Rumen Fill from Dietary Fiber or Inert Bulk

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Dado, R.G., Allen, M.S.·1995·Journal of Dairy Science
DOI 10.3168/jds.s0022-0302(95)76622-x
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Abstract

Twelve multiparous, rumen-cannulated cows (17 DIM) were fed 25 or 35% NDF diets without or with added rumen-inert bulk as water-filled plastic containers (500 ml each) within three 4 x 4 Latin squares (21-d periods). Added bulk equaled 25% of pretrial rumen volume for each cow. Objectives were to challenge cows with rumen fill in the form of dietary NDF and inert bulk to determine whether bulk affects intake similarly for diets of different NDF content or whether changes in behavior or rumen function allow cows to adapt to higher fill. Inert bulk had no effect on DMI for cows fed 25% NDF but decreased DMI for cows fed 35% NDF (18.7 vs. 16.6 kg/d). Volume of rumen digesta plus inert bulk, 102 L, was similar for 35% NDF treatments regardless of presence or absence inert bulk. Additional NDF or inert bulk increased the number of ruminating bouts per day, chewing time per unit of DMI or NDF intake, frequency of reticular contractions during rumination, and fractional passage rate of NDF from the rumen. Although these changes may help to alleviate fill, they were insufficient to maintain intake under conditions of high fill. Intake by cows receiving high fiber diets can be limited by reticulorumen capacity. Future study is required to determine the effect of rumen fiber digestion, fiber particle size, and animal characteristics on fill-limited intake.

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  • High starch content and smaller particle size of maize silages could partly explain faster degradation and clearance from the rumen.

    “The high starch content and smaller particle size of maize silages could partly explain the faster degradation and clearance from the rumen.85,86,90,91”

    From Nutritive value of maize silage in relation to dairy cow performance and milk quality (2015) · cites this paper as [86]

    The Sample and Statistical Analysis passage describes how the study calculated ruminal NDF digestion and passage rates, but it does not address maize silage starch content or particle size as explanations for faster degradation and clearance. Searches for maize silage, starch, particle size, and rumen passage found no passage supporting that explanation. (LLM, conf=0.72)

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Research works printed but not linked: 3

  1. [20]20. SAS® Language Guide for Personal Computers. Ver- sion 6 Edition. 1985. SAS Inst.. Inc., Cary, NC.
  2. [47]47. Ruckebusch. Y. 1988. Motility of the gastro-intestinal tract. Page 64 in The Ruminant Animal. Digestive Physiology and Nutrition. D. C. Church. ed. Prentice Hall. Englewood Cliffs, NJ.
  3. [48]48. SAS® Language Guide for Personal Computers. Ver- sion 6 Edition. 1985. SAS Inst.. Inc., Cary, NC.

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Authors
Dado, R. G., & Allen, M. S.
Affiliations
  • Michigan State University (US)
  • Southern Illinois University Carbondale (US)
ORCID
Allen, M.S.
Venue
Journal of Dairy Science
Publisher
American Dairy Science Association
Published
1995-01
Volume
78
Issue
1
Pages
118-133
ISSN
0022-0302 (ISSN-L)
DOI
10.3168/jds.s0022-0302(95)76622-x
OpenAlex
W2034811814
Semantic Scholar
6099f474e2389edb4bd5f06972b1a8c8142d3a70
Cited by
341
References
28
Citations by year
2026: 7 · 2025: 12 · 2024: 9 · 2023: 11 · 2022: 19 · 2021: 14 · 2020: 9 · 2019: 14 · 2018: 23 · 2017: 9 · 2016: 12 · 2015: 10 · 2014: 22 · 2013: 9 · 2012: 11
FWCI
20.92
Type
journal article
Language
en
Open access
Licence
Locations
  • Journal of Dairy Science (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Ruminant Nutrition and Digestive Physiology
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Nutrition and Physiology
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Milk Quality and Mastitis in Dairy Cows
Keywords
rumen fill, rumen-cannulated cows, dietary fiber, dry matter intake, feeding behavior, rumen function, chewing time, high-fiber diet
MeSH terms
Animals, Animal Feed, Animal Nutritional Physiological Phenomena, Cattle, Dietary Fiber, Digestion, Eating, Female, Hydrogen-Ion Concentration, Lactation, Lactose, Milk Proteins, Rumen, Lipid Metabolism

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