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Cited by 109Ruminant Nutrition and Digestive PhysiologyCrop Yield and Soil FertilityAnimal Nutrition and Physiology

Effect of oil content and kernel processing of corn silage on digestibility and milk production by dairy cows

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Weiss, W.P., Wyatt, D.J.·2000·Journal of Dairy Science
DOI 10.3168/jds.s0022-0302(00)74886-7
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Abstract

Corn silages were produced from a high oil corn hybrid and from its conventional hybrid counterpart and were harvested with a standard silage chopper or a chopper equipped with a kernel processing unit. High oil silages had higher concentrations of fatty acids (5.5 vs. 3.4% of dry matter) and crude protein (8.4 vs. 7.5% of dry matter) than the conventional hybrid. Processed silage had larger particle size than unprocessed silage, but more starch was found in small particles for processed silage. Dry matter intake was not influenced by treatment (18.4 kg/d), but yield of fat-corrected milk (23.9 vs. 22.6 kg/d) was increased by feeding high oil silage. Overall, processing corn silage did not affect milk production, but cows fed processed conventional silage tended to produce more milk than did cows fed unprocessed conventional silage. Milk protein percent, but not yield, was reduced with high oil silage. Milk fat percent, but not yield, was higher with processed silage. Overall, processed silage had higher starch digestibility, but the response was much greater for the conventional silage hybrid. The concentration of total digestible nutrients (TDN) tended to be higher for diets with high oil silage (71.6 vs. 69.9%) and tended to be higher for processed silage than unprocessed silage (71.7 vs. 69.8%), but an interaction between variety and processing was observed. Processing conventional corn silage increased TDN to values similar to high oil corn silage but processing high oil corn silage did not influence TDN.

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  1. [3]3. Bal, M. A., R. D. Shaver, K. J. Shinners, and L. D. Satter. 1998. Effect of mechanical processing on the utilization of whole-plant Journal of Dairy Science Vol. 83, No. 2, 2000 corn silage by lactating dairy cows. J. Dairy Sci. 81 (Suppl. 1):334 (Abstr.).
  2. [20]20. Supelco. 1975. GC Separation of VFA C2-C5, Bulletin 749D, Su- pelco, Inc., Bellefonte, PA.

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Authors
Weiss, W. P., & Wyatt, D. J.
Affiliations
The Ohio State University (US)
ORCID
Venue
Journal of Dairy Science
Publisher
American Dairy Science Association
Published
2000-02
Volume
83
Issue
2
Pages
351-358
ISSN
0022-0302 (ISSN-L)
DOI
10.3168/jds.s0022-0302(00)74886-7
OpenAlex
W2010756224
Semantic Scholar
bfcc466671d9f66f1b885b512ad0aeaae2fec6dc
Cited by
109
References
17
Citations by year
2026: 4 · 2025: 3 · 2024: 4 · 2022: 5 · 2021: 6 · 2020: 3 · 2019: 5 · 2018: 3 · 2017: 7 · 2016: 3 · 2015: 6 · 2014: 6 · 2013: 5 · 2012: 6
FWCI
15.37
Type
journal article
Language
en
Open access
Licence
Locations
  • Journal of Dairy Science (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Ohio State University
  • University of Florida
Topics
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Ruminant Nutrition and Digestive Physiology
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Crop Yield and Soil Fertility
  • Life Sciences › Agricultural and Biological Sciences › Animal Science and Zoology › Animal Nutrition and Physiology
Keywords
corn silage, dairy cattle, milk production, fat-corrected milk, milk protein, milk fat, starch digestibility, fatty acids, crude protein, dry matter intake, total digestible nutrients, particle size
MeSH terms
Animals, Cattle, Zea mays, Corn Oil, Digestion, Feces, Female, Lactation, Milk, Milk Proteins, Nutritive Value, Silage, Urinalysis

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