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Studies on the relationship between nutrition and wool production of merino sheep. 2. The effect of the adminis-tration of cystine, cystein, sulphur and of methionine on the growth of wool of a merino ewe on a protein-poor ration



Studies on the relationship between nutrition and wool production of merino sheep. 2. The effect of the adminis-tration of cystine, cystein, sulphur and of methionine on the growth of wool of a merino ewe on a protein-poor ration



J. Agric. Sci 25: 113-131



With a basal ration consisting of.1 kg. of a mixture of two parts of chaffed oaten straw and one of chaffed lucerne hay, the addition of 1 g. of l-cystine daily gave a 14 per cent. increased wool production on the sample area. Protocols of one ewe are detailed. Injection of 1 g. l-cysteine per pay subcutaneously into the same ewe increased wool growth by 34, 30, 18 and 7 per cent. respectively in the following 10 day periods.

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