Changes

===Risk Factors===

===Risk Factors===

'''Insufficient long fibre in the diet''': It is essential that the diet contains adequate fibre of 2-5cm in length, as it stimulates rumination and forms the rumen mat, where much fermentation occurs. Insufficient long dietary fibre can therefore be detrimental to rumen health. If the diet contains sufficient fibre, but of the wrong lenght, this will also give suboptimal rumen function. Fibre that is chopped too short will not stimulate rumination, and fibre greater than 10cm in length can be selectively sorted out of the diet by the cows themselves. Because the difficult of feeding dairy cattle lies in providing sufficient metabolisable energy, there is a tendency for farmers to focus on making highly digestible (and therefore high ME) silage rather than that of good fibre quality; this contributes to a lack of sufficient long fibre in the feed.

'''Insufficient long fibre in the diet''': It is essential that the diet contains adequate fibre of 2-5cm in length, as it stimulates rumination and forms the rumen mat, where much fermentation occurs. Insufficient long dietary fibre can therefore be detrimental to rumen health. If sufficient fibrethe wrong length is contained within the ration, rumen function will also be suboptimal rumen function. Fibre that is chopped too short will not stimulate rumination, and fibre greater than 10cm in length can be selectively sorted out of the diet by the cows themselves. Because the difficult of feeding dairy cattle lies in providing sufficient metabolisable energy, there is a tendency for farmers to focus on making highly digestible (and therefore high ME) silage rather than that of good fibre quality; this contributes to a lack of sufficient long fibre in the feed.

'''Inaccurate fodder dry matter estimation''': If the dry matter content of fodder is overestimated, insufficient

'''Inaccurate fodder dry matter estimation''': If the dry matter content of fodder is overestimated, insufficient