Haku
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Incorporation of 15N and 14C into amino acids of bacterial and protozoal protein in the rumen of the cow on urea-rich feed
(Suomen maataloustieteellinen seura, 1979)
The Effect of silage prepared in different ways upon the ammonia content of the cowŽs rumen ingesta
(Suomen maataloustieteellinen seura, 1960)