CATALOG 1952-1953 333

 DY. 312.-Technical Control of Dairy Products. 2 hours and 3 hours
laboratory. 3 credits. Offered 2.
 Technical and laboratory control of dairy plant operations and dairy products.
 DY. 318.-Grading and Judging Dairy Products. 1 hour and 2 hours lab-
oratory. 2 credits. Offered 1.
 Market grades and classes of dairy products; grading and judging; chemical and
bacteriological defects and methods of prevention.
 DY. 408.-Dairy Industry Review. 1 hour. 1 credit. Offered 2.
 Recent developments in the dairy industry.
 DY. 410.-Dairy Cattle Judging and Breeds. 4 hours laboratory. 2
credits. Offered 1, 3.
 Characteristics of dairy breeds. Scoring, comparative judging, classification judging,
and fitting animals for sale and show.

 DY. 411.-Dairy Cattle Management. 2 hours and 2 hours laboratory.
3 credits. Offered 1, 3.
 Dairy breeds, selection, breeding and raising dairy cattle. Several trips to dairy
farms.
 DY. 412.-Milk Production. 2 hours and 2 hours laboratory. 3 credits.
Offered 2.
 Feeding and management of dairy cattle for milk production. Several trips to
dairy farms.
 DY. 416.-Dairy Technology. 3 hours and 3 hours laboratory. 4 credits.
Prerequisites: BCY. 301, CY. 331. Offered 2.
 Constituents of milk and how affected by thermal, ionic and physical treatments
of various dairy products and methods of evaluating these effects.
 DY. 418.-Approved Dairy Practice. 1 to 3 credits. Offered 1, 2, 3.
 Practical experience in approved dairy plants. Satisfactory work and a written
report determine the amount of credit allowed.
 DY. 420.-Problems in Dairy Technology. Variable credit. Prerequisite:
Permission of instructor. Offered 1, 2, 3.
 Qualified students may choose an approved problem covering some phase of dairy
technology. Scope of work determines credit allowed.
 DY. 421.-Seminar. 1 hour. 1 credit. Offered 1.
 Preparation and presentation of papers on current topics in the students major
field. Course is designed for seniors in Dairy Husbandry and Dairy Manufactures.

 DY. 422.-Milk Secretion. 2 hours. 2 credits. Offered 2.
 Anatomy of the mammary gland; physiology of milk secretion; factors affecting
milk yield and composition; practical aspects of udder care and management.
 DY. 423.-Applied Dairy Microbiology. 2 hours and 3 hours laboratory.
3 credits. Offered 1.
 Commercial application of microbiological cultures (starters), fermented milks
and organisms common in dairy products; regulations and standards; dairy inspection
and sanitation.


The statement 'Offered 1" means offered first semester; 2, second semester; 3, summer session.