Articles
The fibrosity index of ruminant feed and diet
Published : 10 December 1990
Abstract
The fibrosity index (FI) of feed and diet is equal to the chewing time (intake and rumination) expressed per kg of dry matter (mn/kg DM). A decrease of the FI of a diet is associated with a lower ruminal motricity and salivary secretion, it is moreover related to a decreased milk fat content and an increase in the risk of digestive disorders. There is a large range of FI values for feeds (0 to 250 mn/kg DM). According to published information the FI concept can only be used as an indication, not as a precise feed unit.
Attachments
No supporting information for this article##plugins.generic.statArticle.title##
Views: 1089
Most read articles by the same author(s)
- B. MICHALET-DOREAU, F. CORNELOUP , B. AIZAC , J. ANDRIEU , R. BAUMONT , Variability and factors of variation of crude protein content in whole maize plant , INRAE Productions Animales: Vol. 17 No. 1 (2004)
- J.P. DULPHY, W. MARTIN-ROSSET, J.P. JOUANY, Forage intake and digestibility compared in different herbivores species , INRAE Productions Animales: Vol. 8 No. 4 (1995)
- N.C. FRIGGENS, O. MARTIN, L. BRUN-LAFLEUR, D. SAUVANT, P. FAVERDIN, Nutrient partitioning between physiological functions in the dairy cow depends on the genotype and its expression through time , INRAE Productions Animales: Vol. 26 No. 2 (2013): Numéro spécial : La vache et le lait
- L. PUILLET, M. TICHIT, O. MARTIN, D. SAUVANT, A model of the herd functioning to assess the milk production and the feed efficiency in dairy goat systems , INRAE Productions Animales: Vol. 25 No. 3 (2012): Dossier : Élevage caprin
- N.C. FRIGGENS, D. SAUVANT, O. MARTIN, Towards operational definitions of robustness that rely on biology : nutrition , INRAE Productions Animales: Vol. 23 No. 1 (2010): Dossier :Robustesse, rusticité, flexibilité, plasticité, résilience,... les nouveaux critères de qualité des animaux et des systèmes d’élevage
- M. BENOIT , H. TOURNADRE , J.P. DULPHY , G. LAIGNEL , S. PRACHE , J. CABARET , Comparison of two dairy sheep breeding systems with animals with different reproduction rhythms : a multidisciplinary experimental approach , INRAE Productions Animales: Vol. 22 No. 3 (2009): Numéro spécial : Elevage bio
- M. DOREAU , P. GRIMAUD , B. MICHALET-DOREAU, The effects of underfeeding on digestion in ruminants , INRAE Productions Animales: Vol. 13 No. 4 (2000)
- J.P. DULPHY, J. ROUEL, M. JAILLER, D. SAUVANT, Additional data on mastication time in dairy cows fed forage-rich diet : influence of the forage type and concentrate supplementation level , INRAE Productions Animales: Vol. 6 No. 4 (1993)
- D. SAUVANT, Nutritional and zootechnical consequences of variations in starch degradation rate in ruminants , INRAE Productions Animales: Vol. 10 No. 4 (1997)
- L. PUILLET , D. SAUVANT , M. TICHIT , Interests and limits of the representation of individual variability in dynamic herd models , INRAE Productions Animales: Vol. 23 No. 3 (2010)