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Cited by 52Ruminant Nutrition and Digestive PhysiologyCrop Yield and Soil FertilityAnimal Nutrition and Physiology

Effect of Corn Hybrid and Chop Length of Whole-Plant Corn Silage on Digestion and Intake by Dairy Cows

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Fernandez, I., Martin, C., Champion, M., Michalet-Doreau, B.·2004·Journal of Dairy Science
DOI 10.3168/jds.s0022-0302(04)73279-8
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Abstract

The objectives of this experiment were to study the effects of corn hybrid and chop length of whole-plant corn silage (WPCS) on intake, and to quantify ruminal digestive processes that could help to identify factors limiting dry matter intake (DMI). Eight lactating cows and 4 dry cows fitted with a ruminal cannula were randomly assigned to 4 treatments in a 4 x 4 Latin square design with replications for lactating cows and without for ruminally cannulated cows. Treatments were fed in a total mixed ration (TMR) containing 75% WPCS and 25% concentrate. The 4 WPCS differed in the characteristics of 2 conventional hybrids, less degradable vs. more degradable in the rumen and in the chop length, fine vs. coarse. The DMI was measured for all cows, and digestion measurements and chewing activities were recorded with the cannulated cows. With lactating cows, DMI and milk yield varied with corn hybrids but not with chop length. The less degradable hybrid in the rumen was the less ingested. Dry matter intake of dry ears followed the same trend, but the differences between hybrids were lower than that observed with the lactating cows and not significant. Dry matter digestibility in the total tract and rumen fill were not different between hybrids. Ruminal mean retention time was greater for the least degradable hybrid. The rumen fill capacity could explain intake differences between hybrids. Ingestive mastication strongly reduced particle size, and the efficiency of particle size reduction was more important with the coarsely chopped WPCS than the finely chopped ones. The small differences in particle size of material entering the rumen after mastication of WPCS during eating might explain the lack of response for decreasing chop length. Because the rumen fill decreased with the decrease in chop length, rumen fill could not be the only factor responsible for DMI control of WPCS.

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  • Increased DMI often increases the level, but often not the efficiency, of milk production.

    “Thus the increased DMI, in turn, often increases the level, but often not the efficiency, of milk production.71,72”

    From Nutritive value of maize silage in relation to dairy cow performance and milk quality (2015) · cites this paper as [72]

    The Intake and Milk Yield section (page unavailable) reports that cows fed the hybrid associated with higher DMI also had higher milk yield. It does not report whether milk-production efficiency increased, nor does this comparison establish that the pattern occurs often. (LLM, conf=0.85)

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  1. [3]3. AOAC. Association of Official Analytical Chemists. 1990. Page 684 in Official Methods of Analysis. Vol. 1. 14th ed. Washington DC.
  2. [21]21. Dragomir, C., B. Michalet-Doreau, J.-L. Peyraud, and D. Sauvant. 2003. Integrative parameters of pH kinetics as indicators of rumi- nal acidosis. Pages 225-227 in Proceedings Sixth Int. Symp. Nu- trition of Herbivores, Merida, Mexico.
  3. [23]23. Ellis, W. C., and D. E. Beever. 1984. Methods for binding rare earths to specific feed particles. Pages 154-165 in Techniques in Particles Journal of Dairy Science Vol. 87, No. 5, 2004 Size of Feed and Digesta in Ruminants. P. M. Kennedy, ed. Can. Soc. Anim. Sci., Edmonton, Canada.
  4. [30]30. INRA. 1989. Ruminant nutrition. Pages 74-91 in Recommended Al- lowances and Feed Tables. R. Jarrige, ed. John Libbey Eurotext, Paris, France.
  5. [39]39. Pitroff, W., and M. M. Kothmann. 1999. Regulation of intake and diet selection by herbivores. Nutritional Ecology of Herbivores. Pages 366-422 in Proceedings of the 5th International Sympo- sium on the Nutrition of Herbivores. San Antonio, TX.
  6. [47]47. Ulyatt, M. J., Dellow D. W., A. John, C. S. W. Reid, and G. C. Waghorn. 1986. Contribution of chewing during eating and rumination to the clearance of digesta from the ruminoreticulum. Pages 498- 515 in Control of Digestion and Metabolism in Ruminants. L. P. Milligan, W. L. Grovum, and A. Dobson, ed. Prentice-Hall, Englewood Cliffs, NJ.
  7. [48]48. Van Eenaeme, C., J. M. Bienfait, O. Lambot, and A. Pondant. 1969. De ´termination automatique de l'ammoniaque dans le liquide du Journal of Dairy Science Vol. 87, No. 5, 2004
  8. [50]50. Van Soest, P. J., and J. B. Robertson. 1980. Systems of analysis for evaluating fibrous feeds. Pages 49-60 in Standardization of Analytical Methodology for Feeds. Int. Devel. Res. Center, Ot- tawa, Canada.

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Authors
Fernandez, I., Martin, C., Champion, M., & Michalet-Doreau, B.
Affiliations
  • Institut National de la Recherche Agronomique (FR)
  • Limagrain (France) (FR)
Corresponding author
Martin, C.
ORCID
Martin, C.
Venue
Journal of Dairy Science
Publisher
American Dairy Science Association
Published
2004-05
Volume
87
Issue
5
Pages
1298-1309
ISSN
0022-0302 (ISSN-L)
DOI
10.3168/jds.s0022-0302(04)73279-8
OpenAlex
W2001620841
Semantic Scholar
44d2c066d6b3879a86b30ed9163acb426cb4184d
Cited by
52
References
45
Citations by year
2026: 1 · 2025: 2 · 2024: 4 · 2023: 2 · 2022: 1 · 2021: 1 · 2020: 1 · 2019: 4 · 2018: 2 · 2017: 1 · 2016: 1 · 2015: 2 · 2014: 3 · 2013: 1 · 2012: 4
FWCI
8.66
Type
journal article
Language
en
Open access
Licence
Locations
  • Journal of Dairy Science (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
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
whole-plant corn silage, maize hybrids, chop length, dry matter intake, rumen degradability, rumen fill, rumen retention time, mastication, dairy cattle, lactating dairy cows, dry cows, milk yield, dry matter digestibility, particle size
MeSH terms
Animals, Cattle, Zea mays, Digestion, Eating, Fatty Acids, Volatile, Female, Fermentation, Food Handling, Hybridization, Genetic, Hydrogen-Ion Concentration, Lactation, Mastication, Rumen, Silage

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