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Relationship between in vitro gas production and NIRS predicted enzymatic digestibility and chemical composition

Published online by Cambridge University Press:  27 February 2018

A. Piva ,
E. Meola ,
G. Biagi ,
M. Ricchi ,
A. Panciroli ,
M. Champion  and
A. Mordenti
A. Piva
Affiliation:
Dipartimento di Morfofisiologia Veterinaria, Via Tolara di Sopra 50, 40064 Ozzano Emilia, Italy
E. Meola
Affiliation:
Dipartimento di Morfofisiologia Veterinaria, Via Tolara di Sopra 50, 40064 Ozzano Emilia, Italy
G. Biagi
Affiliation:
Dipartimento di Morfofisiologia Veterinaria, Via Tolara di Sopra 50, 40064 Ozzano Emilia, Italy
M. Ricchi
Affiliation:
Dipartimento di Morfofisiologia Veterinaria, Via Tolara di Sopra 50, 40064 Ozzano Emilia, Italy
A. Panciroli
Affiliation:
Dipartimento di Morfofisiologia Veterinaria, Via Tolara di Sopra 50, 40064 Ozzano Emilia, Italy
M. Champion
Affiliation:
Limagrain Station Expérimentale de Mons 63203 Riom, France
A. Mordenti
Affiliation:
Dipartimento di Morfofisiologia Veterinaria, Via Tolara di Sopra 50, 40064 Ozzano Emilia, Italy
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Extract

Rumen fermentability of raw materials and foods can be evaluated by different means. Recently a large interest has been generated by the use of in vitro gas production associated with the degradation and fermentation kinetics of forages and concentrates. Measuring and modelling gas production have been studied (Beuvink, 1993) and implemented by automation (Theodorou et al., 1994). This approach has been applied to a variety of foods with different purposes: estimating the effect of maturity on alfalfa and brome hay digestion (Stefanon et al., 1996), evaluating the role of genetic variation on perennial ryegrass rumen fermentation (Loo et al., 1994) and comparing rice-straw fermentability (Williams et al., 1996).

This research has been designed to rank maize silages according to their fermentability and to evaluate possible correlation to the near infrared reflectance spectroscopy (NIRS) predicted wet chemistry values and in vivo calculated organic matter digestibility (OMD).

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Information
BSAP Occasional Publication , Volume 22: In vitro techniques for measuring nutrient supply to ruminants , 1998 , pp. 294 - 296
Copyright
Copyright © British Society of Animal Science 1998

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