الكاتب: Multiple References

ADF expresses a clearly closer negative correlation to OMD. The organic matter digestibility of the straws range from 35 to 55% (JACKSON 1978), depending on the species, plantation, harvesting time, extent of ligification and subsequent handling and the significance of differences in untreated crop residue digestibility is that remain after alkali treatment. When the response was not obtained with animals (KLOPFENSTEIN 1972), it may indicate that some nutrients were deficient or imbalanced; or that some other factors, such as rate of passage was reducing digestibility in treated low quality roughage rations. A variety of methods of treating straw with alkalis have been developed and treated straw can replace hay or silage in the diet when protein content increased with an oil meal supplement or urea (HASIMOGLU et al. 1969; KLOPFENSTEIN 1972; JACKSON 1978). Chemical treatment of straw has been well reviewed (KLOPFENSTEIN 1972; 1976; HOMB et al. 1977; JACKSON 1978; MULLER 1978) and methods of treating straw were discussed. Treatment of straw increases its nutritive value by increasing its digestibility by 5-20 percentage units depending upon the method used. It has been determined that 1,s kg 5% NaOH treated straw contains the same amount of digestibility energy as 1 kg dried molasses beet pulp pellets did, (BECKER et a\. 1970).