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Journal of Dairy Science Vol. 70 No. 10 2069-2077
© 1987 by American Dairy Science Association ®
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Microbial Inoculation of Low Moisture Alfalfa Silage1

L. Kung, Jr.2, L. D. Satter and B. A. Jones

US Dairy Forage Research Center USDA-ARS, Madison, Wl 53706

K. W. Genin and A. L. Sudoma

Chr. Hansen's Laboratories, Inc., Milwaukee, WI 53214

G. L. Enders, Jr. and H. S. Kim

Miles Laboratories, Inc., Elkhart, IN 46515

ABSTRACT

Alfalfa was field wilted to 53 or 57% dry matter in each of 2 yr, treated with microbial inocula, ensiled, and allowed to ferment. In both years, treated silages had lower pH and residual water-soluble carbohydrates and greater lactic acid content than untreated silages. Silage was fed to lactating dairy cows as 60% of the ration DM for 10 wk. In Experiment 1, cows (average 67 d postpartum) fed third cutting alfalfa silage treated with inocula produced significantly more milk than control cows. Total DM intake did not dffer among treatments. Treatments were the same in the 2nd yr but alfalfa was second cutting and cows averaged 99 d postpartum in Experiment 2. No differences were detected among treatments for milk production, milk composition, or feed intake. Dry matter recovery from all the silos was not different in yr 1 but was greater for inoculated silages in yr 2. Silage quality was better for inoculated silages in both years than for control silage.

FOOTNOTES

1 Trade names are used in this paper solely to provide specific information. Mention of a trade name does not constitute a warranty of the product by the US Department of Agriculture nor as an endorsement of the product to the exclusion of other products not mentioned.

2 Current address: Department of Animal Science and Agricultural Biochemistry, University of Delaware, Newark 19717-1303.






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Copyright © 1987 by the American Dairy Science Association ®.