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unit of time. For the purposes of this paper and because of its simplicity, animal live weight will be used in the Stocking rate has a major effect on animal performance, but compadenominator of the relationship, but it is understood rable stocking rates may result in a wide range in performance across that this number can be converted to animal units or environments because of differences in forage mass or sward canopy characteristics. Forage allowance is a function of both forage mass forage intake units if preferred. and stocking rate and can be a powerful tool for explaining differences Forage allowance can be a very useful tool in exin animal performance. Some methods used to express forage allowplaining animal performance on pasture if allowance ance in the literature do not allow useful comparisons across grazing occurs across a relatively wide range, such as in fixed methods or among management strategies within a method. In addistocking rate experiments with multiple levels of the tion, many include a unit of time which violates the definition of treatment factor. Typically, the relationship between forage allowance as a point-in-time measure. A meaningful method daily gain and forage allowance is linear up to some of reporting forage allowance is needed that applies across a wide relatively high allowance, after which gain levels off range of pasture management treatments. This paper suggests a (McCartor and Rouquette, 1977; Sollenberger and method that does not include a unit of time, has application across Moore, 1997). The interaction of forage allowance and continuous and rotational stocking methods, and within the rotational stocking method applies to any size or number of pasture subunits.supplementation rate on milk production has been an important recent area of research in temperate, pasturebased dairy systems (Wales et al., 1999).

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