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Responce of Lactating Cows to Two Levels of Mill-Run Blackstrap Mollasses from Cane Grown on Organic Soil¹

Department of Dairy Science, Institute of Food and Agricultural Sciences Gainsville, Florida 32601

ABSTRACT

Complete rations containing 4.2 or 12.6% of mill-run blackstrap molasses were compared with a control ration for lactating dairy cows in six 3 x 3 Latin squares balanced for residual effects in each of two years.

Yield of 4% fat-corrected milk decreased from the control of 23.5 kg to 22.8 for the 4.2% level and to 22.3 for the 12.6% level. Fat percent decreased progressively from 4.17 to 4.10 and 4.02, and solids-not-fat from 9.06 to 8.98 and 8.94. Difference in molasses levels did not produce significant effects, but comparisons of the control to molasses without separation into levels revealed depressions significant at 5% for yields of milk and solids-no-fat at 1% for fat yields, fat percent, and yield of 4% fat-corrected milk.

¹ Florida Agricultural Experiment Station Journal Series no. 3096.

² Present address: Abraham Baldwin College, Tifton, Georgia 31794.