Group Title: Preliminary report
Title: Preliminary report : relationship of menadione to milk souring and to dairy culture lactic acid development
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 Material Information
Title: Preliminary report : relationship of menadione to milk souring and to dairy culture lactic acid development
Alternate Title: Dairy science mimeo 54-2 ; Florida Agricultural Experiment Station
Physical Description: Book
Language: English
Creator: Wilkowske, Howard Hugo.
Krienke, W. A.
Arrington, L. R.
Publisher: Florida Agricultural Experiment Station, University of Florida
Place of Publication: Gainesville, Fla.
Publication Date: February 5, 1954
Copyright Date: 1954
 Record Information
Bibliographic ID: UF00091662
Volume ID: VID00001
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: 317300445 - OCLC

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FLORIDA AGRICULTURAL EXPERIMENT STATION
Department of Dairy Science
Gainesville, Florida

Dairy Science Mimeo 5$-2
February 5, 1954

Preliminary Report: Relationship of Menadione to Milk
Souring and to Dairy Culture Lactic Acid Development.

H. H. Wilkowske, W. A. Krienke and L. R. Arrington


This Department received several inquiries relative to delayed milk souring

resulting from the feeding of menadione, soon after Kelley and Dittmer, Florida

State University at Tallahassee, announced their results. Some of the requests for

additional information were concerned specifically with the possible effects on

lactic acid production by dairy starters used in the manufacture of fermented

dairy products. A study was undertaken to supply the needed answers and this

preliminary report is a brief summary of the results to date.

When four cows of the Department of Dairy Science dairy herd were fed

25 mg. menadione per day (mixed into the grain ration of the evening feeding) for

a period of 28 days, no change was observed in the rate of souring brought about

by the normal bacterial flora of the milk. In second portions of the milk samples,

inoculated with various commercial buttermilk and cheese cultures, no change was

noted in rate of acid development which could be attributed to feeding the menadione

Results were similar when two other cows were fed the menadione at the rate of

100 mg. daily for 20 days. Another group of four cows, on trials still in progress,

have received 300 mg. of menadione twice daily for 20 days and the results have

been similar to those of the previous studies.

Under feeding conditions as practiced in these studies the feeding of

menadione did not affect the normal rate of milk souring nor the rate of lactic

acid development by dairy cultures.


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