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Cited by 46Ruminant Nutrition and Digestive PhysiologyAgricultural Engineering and MechanizationCrop Yield and Soil Fertility

Influence of mechanical processing on utilization of corn silage by lactating dairy cows

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Dhiman, T.R., Bal, M.A., Wu, Z., Moreira, V.R., Shaver, R.D., Satter, L.D., Shinners, K.J., Walgenbach, R.P.·2000·Journal of Dairy Science
DOI 10.3168/jds.s0022-0302(00)75144-7
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Abstract

We conducted three experiments to determine the influence of mechanical processing on corn silage utilization by lactating dairy cows. Total mixed rations contained either unprocessed or processed corn silage harvested between 1/4 and 3/4 milk line. In trial 1, 12 multiparous Holstein cows were used in a replicated double switchback design with 21-d periods. Intake of dry matter (DM) was increased 1.2 kg/d by processing, but milk yield was unaffected. Processing did not affect apparent total-tract DM digestibility, but processing tended to lower starch and corn excretion in feces and reduced concentration of sieved corn kernel particles in feces. In trial 2, 42 Holstein cows were used in an 18-wk randomized complete-block design. Intake of DM and milk yield were unaffected by processing, but milk fat percent was increased 0.35 percentage units by processing. Processing tended to increase total-tract digestibility of starch, but reduced organic matter, crude protein, and neutral detergent fiber digestibilities. In trial 3, 30 Holstein cows were used in a 15-wk randomized complete block design. There was no influence of mechanical processing on intake or lactation performance in this trial. Despite indications of increased starch digestion in two trials and increased DM intake in one trial, effects of processing corn silage on lactation performance were minimal with corn silage at the maturity and moisture contents used in these trials.

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  • Theoretical length of cut settings were shorter for unprocessed than processed whole-plant corn silage treatments in most studies.

    “TLOC settings were shorter for unprocessed than processed WPCS treatments in most studies (Bal et al., 2000a;Dhiman et al., 2000;Weiss and Wyatt, 2000;Schwab et al., 2002;Ouellet et al., 2003;Cooke and Bernard, 2005).”

    From Silage review: Recent advances and future technologies for whole-plant and fractionated corn silage harvesting (2018) · cites this paper as Dhiman et al., 2000

  • Particle size of processed whole-plant corn silage harvested with longer theoretical length of cut settings was similar to unprocessed silages in some but not all studies.

    “In addition, particle size of processed WPCS harvested with longer TLOC settings was similar to unprocessed silages in some (Dhiman et al., 2000, trial 2;Schwab et al., 2002;Cooke and Bernard, 2005) but not all (Bal et al., 2000a;Dhiman et al., 2000, trial 3;Weiss and Wyatt, 2000) studies.”

    From Silage review: Recent advances and future technologies for whole-plant and fractionated corn silage harvesting (2018) · cites this paper as Dhiman et al., 2000, trial 2

  • Higher ruminal propionate concentrations for cows fed processed whole-plant corn silage may decrease meal size and thus dry matter intake.

    “Alternatively, higher ruminal propionate concentrations for cows fed processed WPCS (Dhiman et al., 2000;Schwab et al., 2002;Johnson et al., 2003) may decrease meal size and thus DMI (Allen et al., 2009).”

    From Silage review: Recent advances and future technologies for whole-plant and fractionated corn silage harvesting (2018) · cites this paper as Dhiman et al., 2000

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  1. [5]5. Bal, M. A., R. D. Shaver, A. G. Jirovec, K. J. Shinners, and J. G. Coors. 2000. Crop processing and chop length of corn silage: Ef- Journal of Dairy Science Vol. 83, No. 11, 2000
  2. [20]20. SAS User's Guide: Statistics. Release 6.03 Edition. 1988. SAS Inst., Inc., Cary, NC.
  3. [21]21. Satter, L. D., Z. Wu, V. R. Moreira, M. A. Bal, and R. D. Shaver. 1999. Processing corn silage. Page 49 in Proc. of the 24th Annual Minnesota Forage Conf. American Forage and Grassland Council, Rochester, MN.

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Authors
Dhiman, T. R., Bal, M. A., Wu, Z., Moreira, V. R., Shaver, R. D., Satter, L. D., Shinners, K. J., & Walgenbach, R. P.
Affiliations
  • Agricultural Research Service (US)
  • Utah State University (US)
ORCID
Venue
Journal of Dairy Science
Publisher
American Dairy Science Association
Published
2000-11
Volume
83
Issue
11
Pages
2521-2528
ISSN
0022-0302 (ISSN-L)
DOI
10.3168/jds.s0022-0302(00)75144-7
OpenAlex
W2126618925
Semantic Scholar
a66e79c52b438ca6390ffc855174346386d2fa4d
Cited by
46
References
19
Citations by year
2024: 1 · 2023: 4 · 2022: 1 · 2021: 1 · 2020: 3 · 2019: 1 · 2018: 2 · 2016: 1 · 2014: 1 · 2012: 2
FWCI
13.43
Type
journal article
Language
en
Open access
Licence
Locations
  • Journal of Dairy Science (publishedVersion)
  • PubMed (publishedVersion)
  • Civil War Book Review (submittedVersion)
Funders
U.S. Department of Agriculture
Topics
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Ruminant Nutrition and Digestive Physiology
  • Physical Sciences › Engineering › Mechanical Engineering › Agricultural Engineering and Mechanization
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Crop Yield and Soil Fertility
Keywords
corn silage, mechanical processing, lactating dairy cows, silage utilization, milk yield, milk fat, dry matter intake, starch digestibility, total tract digestibility, fecal excretion, Holstein cows, silage maturity, neutral detergent fiber digestibility
MeSH terms
Medicago sativa, Animals, Cattle, Zea mays, Dietary Fiber, Digestion, Female, Food Handling, Lactation, Milk, Parity, Silage, Starch

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