Download e-book for iPad: Forage Evaluation in Ruminant Nutrition (Cabi) by D I Givens, Emyr Owen, Roger F E Axford

By D I Givens, Emyr Owen, Roger F E Axford

ISBN-10: 0851993443

ISBN-13: 9780851993447

Present pressures to maximize using forages in ruminant diets have renewed curiosity in quickly, low-cost equipment for the estimation in their dietary price. consequently, a large choice of organic and physiochemical systems have lately been investigated for this purpose.This ebook is the one definitive reference quantity at the present prestige of analysis during this areaCovers all forages eaten by means of ruminant animals

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Thereafter, no differences were observed between the two feeds with respect to the partition of GE to faecal, methane or urine energy. 3. Comparison of in vivo and laboratory-derived estimates of the metabolizable energy content of two maize silages harvested at different stages of maturity (units, MJ kgϪ1 oven-dry matter unless stated). 2 576 851 Total mixed ration DE / GE (kJ MJϪ1) DE content ME / GE (kJ MJϪ1) ME / DE (kJ MJϪ1) * Mean of six reporting laboratories. † Not corrected for level of feeding effects.

E. L. Mould forages, for reasons discussed earlier. However, for the full potential of feedstuff analysis to be realized, several important issues need to be addressed. Some of these will be discussed in this section, along with possible recommendations, accepting that feedstuff evaluation is an evolving science, in which further revisions will be dependent upon the way in which systems of meat and milk production from ruminants develop. g. Beever and Cottrill, 1993), concern over the adequacy of present feed rationing schemes, which generate much of the current interest in feed evaluation, has been expressed.

Possibly the most crucial issue is the need to consider models that represent animal response, rather than simply meeting animal requirements. Before addressing longer-term aspects, however, it is pertinent to consider how various options may be developed to improve current systems. Immediate requirements All feedstuff analysis has a cost, which is always borne by the farmer, even if indirectly through the services of a feed or advisory company. Thus, livestock producers are entitled to question the value of their investment in feedstuff analysis in terms of enhancing the profitability of their business.

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Forage Evaluation in Ruminant Nutrition (Cabi) by D I Givens, Emyr Owen, Roger F E Axford

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