Abstract
The economic importance of the cost of feeding stuffs in the raising of farm animals needs no emphasis. This article reviews the progress of a large-scale research programme launched in Hungary in 1981 to explore the prospects for making greater use of agricultural and industrial by-products – such as wheat straw, beet slices, and maize stubble – for feeding stock. Although the Hungarian situation is not typical – the ratio of pigs to cows is 4.33:1 compared with a world average of 0.66:1 – many of the substitutes evaluated are potentially relevant to the rearing of ruminants everywhere.
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