Farm Animal Metabolism and Nutrition

curves of this kind do not differ enough in shape from a single curve to be able to reproduce the kinds of shapes shown in Fig. ...

An empirical multi-pool model To fit gas curves, Groot et al. (1996) pro- posed an equation of the form: V= Vfi(1 + (Bi/t)Ci)
...

in Fig. 10.3 are fitted using Equation 10.8, only one (wheat straw) gives a high Fvalue combined with well-defined parameters (s ...

One way to test the validity of these assignments is to examine mixtures of simple homogeneous substrates as reported by Schofie ...

(1996). They isolated the water-soluble and water-insoluble fractions of lucerne (Medicago sativa) and bromegrass (Bromus inermi ...

2.That associative effects (e.g. the effects of soluble sugars on fibre digestion) can be ignored. 3.That extraction with either ...

from the whole-forage profile may or may not correspond to a given chemical fraction. Gas Yield and Microbial Yield Feeds in the ...

The phosphate anion reacts with some of the protons that otherwise would generate CO 2. Feeds with a high protein content may al ...

values from 1.07 to 2.65 mg ml
^1. The same authors also used^15 N incorporation as a measure of biomass yield and found that su ...

expected to change the digestion profile and the feed value of silage compared with forage. Doane et al.(1997a) used a curve sub ...

Lelystad, The Netherlands, and Dr Michael Theodorou, IGER, Aberystwyth, UK for providing material prior to publication. Much of ...

Krishnamoorthy, U., Steingass, H. and Menke, K.H. (1991) Preliminary observations on the relation- ship between gas production a ...

Appendix Non-linear curve fitting Useful numerical information is extracted from gas data by means of non-linear curve fitting. ...

regression/mean square error: larger values mean a better fit) and r^2 (maximum = 1.0, values within the range 0.97–1.0 are acce ...

Chapter 11 In Sacco Methods P. Nozière and B. Michalet-Doreau^1 Département Elevage et Nutrition des Animaux, Unité de Recherche ...

structural carbohydrates. In the second part of this chapter, we will survey the different uses of this technique and their limi ...

grinding of hay markedly increased the rate of DM and NDF disappearance or decreased the lag time, i.e. the time between the int ...

sized screen. The chemical composition of different sized particles is different, and fractions of different particle size poten ...

after fermentation in the ventral sac. This vertical stratification continues through- out the nycthemeral period, reaching a ma ...

sheep (Mehrez and Ørskov, 1977), but the DM disappearance after ruminal incuba- tion varies according to the location of the bag ...