It’s late, and you’re still awake. Allow us to help with Sleep Aid, a series devoted to curing insomnia with the dullest, most soporific prose available in the public domain. Tonight’s prescription: “The Production of Dairy Cows as Affected by Frequency and Regularity of Milking and Feeding,” circular 180 from the U.S. Department of Agriculture, published in September 1931.
In the management of the dairy herd, milking requires more time and labor than any other phase of the work. The application of recent findings regarding the secretion of milk and the development of milking machines may be expected to produce important changes in the frequency and also in the manner of milking. At the United States Dairy Experiment Station at Beltsville, Md., the Bureau of Dairy Industry has carried on experiments x on the effects of the frequency of milking, change of milkers, and regularity and irregularity in the hours of milking and feeding on the cows’ production of milk and butterfat. The results of these experiments are reported and discussed in this publication.
FREQUENCY OF MILKING
MILKING THREE TIMES A DAY AS COMPARED WITH TWICE A DAY
It is generally known that cows produce more milk if milked three or four times a day than if milked twice a day. Just how much more milk will be produced, however, is a matter upon which investigators differ. Some of the results obtained in comparing three with two milkings a day are as follows: At the Agricultural Experiment Station of the University of Vermont, two cows milked three times a day, in trial periods of 3 to 14 days, gave less milk than when they were milked twice a day. Walker, after carrying on an experiment at Offerton Hall, England, in which he used two groups of five cows each, reported as follows:
So far as milking three times a day is concerned, the results obtained in these experiments show no advantage whatever. On the contrary, the extra driving and other undue interference with the treatment of the cows has produced results of a negative character.
At the Ontario Agricultural College, Canada, two cows milked three times a day for two weeks gave more milk, but only one of these cows gave more butterfat, than when milked twice a day. At the New York State Agricultural Experiment Station, cows producing about 400 pounds of butterfat a year when milked twice a day gave only about 22 pounds more when milked three times a day. Fleischmann estimated the increase in yield to be about 6 or 7 percent for milking three times a day as compared with twice. According to Huynen, the milk yield when cows were milked twice a day as compared with three times was about 1 per cent less for cows yielding 10 liters and 10 per cent less for cows yielding 30 liters or more, with an average for the herd of about 6 or 7 per cent less. The milkings were 12 hours apart when made twice a day; and 5K 3 6K, and 12 hours apart when made three times daily. Read More »