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Cited by 69Ruminant Nutrition and Digestive PhysiologyAnimal Nutrition and PhysiologyFood composition and properties

The effect of protein degradation products in grass silages on feed intake and intake behaviour in sheep

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Os, M. Van, Dulphy, J.P., Baumont, R.·1995·British Journal of Nutrition
DOI 10.1079/bjn19950008
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Abstract

The effects of NH 3 and amines on grass-silage intake, intake behaviour and rumen characteristics were studied in sheep. From a single sward, two direct-cut grass silages were prepared, either untreated (WAS) or with 4·51 formic acid/tonne (FAS). Four experimental diets: WAS, FAS, FAS with addition of 2·9 g NH 3 /kg DM (FAS + N) and FAS with 2·8 g amines/kg DM (FAS + A), were offered ad lib . once daily to four rumen-cannulated wethers in a 4 × 4 Latin square design. Daily DM intake (DMI) tended to be influenced by dietary treatment ( P = 0·09). Compared with FAS, DMI was lower for WAS. Addition of NH 3 did not alter DMI, whereas amine addition slightly lowered daily DMI. Reduced DMI resulted from lower intake rates during both the principal meal and the subsequent small meals. Lower initial intake rate during the principal meal suggested reduced palatability of WAS and FAS + A. Amines and NH 3 , however, did not influence chewing efficiency. No treatment effects were observed on total rumen pool size, DM and neutral-detergent fibre content. Furthermore, NH 3 , and amines did not alter rumen pH, NH 3 , and volatile fatty acid concentrations to the extent that they could act on chemostatic intake regulation. Amine addition, however, lowered osmolality of the rumen liquid. No treatment effects on rumen motility were observed. In conclusion, daily DMI was not reduced by the addition of NH 3 , suggesting that NH 3 per se is not the causal factor in the negative correlations between silage NH 3 content and intake observed by other authors. Amines, however, tended to reduce DMI only by their effect at the oro-pharyngeal level of intake control.

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Research works printed but not linked: 11

  1. Aitchison, E. M. (1985). A study of the removal of fibre from the rumen and voluntary intake of sheep eating hay diets. PhD Thesis, University of Reading.
  2. Benahmed, H. & Dulphy, J. P. (1987). Influence de la complementation des foins traitts 8 I'ammoniaque sur leur valeur nutritive (Supplementation of ammonia-treated hay: effect on the nutritive value). Annales de Zootechnie Brun, J. P., Prache, S . & Bechet, G. (1984). A portable device for eating behaviour studies. In 5th Meeting of European Grazing Workshop [R. Armstrong and J. Doney, editors]. Midlothian: Hill Farming Research Organization.
  3. Dulphy, J. P. & Demarquilly, C. (1981). Problemes particuliers aux ensilages. (Particular problems with silages). In PrPvision de la Valeur Nutritive des Aliments des Ruminants, pp. 81-104. Versailles: INRA Publications.
  4. Dulphy, J. P. & Michalet-Doreau, B. (1981). Prtvisions de l'ingestibilitt des ensilages d'herbe (Intake predictions of grass silages). In Pre'vision de la Valeur Nutritive des Aliments des Ruminants, pp. 169-184. Versailles: INRA Publications.
  5. Gill, M., Thiago, L. R. S. & Buchanan-Smith, J. G. (1987). Intake problems associated with ensiled forages. In Feed Intake by Beef Cattle. Miscellaneous Publication no. 121, pp. 341-352. Stillwater, Oklahoma: Oklahoma State University.
  6. Jouany, J. P. (198 1). Dosages des acides gras volatils et des alcools dans les ensilages par chromatography en phase gazeuse (Analysis of volatile fatty acids and alcohols in silages by gas chromatography). Bulletin Technique CRZV, Theix INRA 46, 63-66.
  7. Kutas, F., Galfi, P. & Neogrady, S. (1986). Deleterious effect of tyramine on ruminal epithelial cells. In Proceedings of the 6th Conference of Production Diseases in Farm Animals, pp. 149-153 [
  8. D. C. Church, editor]. Englewood Cliffs, NJ: Prentice Hall.
  9. Thiago, L. R. S. & Gill, M. (1986). The effect of conservation method and frequency of feeding on the removal of digesta from the rumen. Proceedings of the Nutrition Society 45, 97A.
  10. Effect of ketogenic silage, season, energy level and genetic factors. Journal of Dairy Science 75, 2421-2432.
  11. Ulyatt, M. J., Dellow, D. W., John, A., Reid, C. S. W. & Waghorn, G. C. (1986). Contribution of chewing during eating and rumination to the clearance of digesta from the ruminoreticulum. In Control of Digestion and Metabolism in Ruminants, pp. 49&515 [

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Authors
Os, M. V., Dulphy, J. P., & Baumont, R.
Affiliations
  • Institut National de la Recherche Agronomique (FR)
  • Unilever Research and Development Vlaardingen (NL)
ORCID
Baumont, R.
Venue
British Journal of Nutrition
Publisher
Cambridge University Press (CUP)
Published
1995-01
Volume
73
Issue
1
Pages
51-64
ISSN
  • 0007-1145 (ISSN-L)
  • 1475-2662
DOI
10.1079/bjn19950008
OpenAlex
W2020758232
Cited by
69
References
58
Citations by year
2026: 1 · 2025: 1 · 2022: 2 · 2021: 1 · 2020: 3 · 2019: 2 · 2018: 3 · 2015: 2 · 2014: 2 · 2013: 2
FWCI
15.69
Type
journal article
Language
en
Open access
Licence
www.cambridge.org/core/terms (unspecified, 4450 d)
Locations
  • British Journal Of Nutrition (publishedVersion)
  • PubMed (publishedVersion)
  • Socio-Environmental Systems Modeling (acceptedVersion)
  • HAL (submittedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
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
  • Health Sciences › Nursing › Nutrition and Dietetics › Food composition and properties
Keywords
hypocholesterolaemic effect, serum cholesterol, bile acids, neutral steroids, cholesterol metabolism, cholestyramine, bile acid excretion, lithocholic acid, muricholic acids, triglycerides, grass silage
MeSH terms
Amines, Ammonia, Animals, Eating, Fatty Acids, Volatile, Feeding Behavior, Poaceae, Hydrogen-Ion Concentration, Male, Osmolar Concentration, Rumen, Sheep, Silage

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