DSCI 301 Advanced Dairy Cattle Feeding (3)
Nutrition requirements of dairy cattle. Successful, economical feeding practices, ration formulation utilizing the computer. 2 lectures, 1 activity. Prerequisite: DSCI 101 or ASCI 101 and computer literacy elective.
DSCI 321 Lactation Physiology (3)
Mechanisms of milk component secretion, including protein, lactose and fat synthesis. Disorders of the mammary gland (mastitis) and appropriate management practices for mastitis control. 3 lectures. Prerequisite: DSCI 101, DSCI 121, ZOO 131, CHEM 121.
DSCI 323 Breeds, Fitting and Showing, and Management of Dairy Cattle (3)
Origin of modern dairy cattle breeds, breed comparisons, families, and pedigrees. Purebred herd management. Dairy cattle fitting and showing, photography, and merchandising. 2 lectures, 1 laboratory. Prerequisite: DSCI 121 or DSCI 230.
DSCI 330 Artificial Insemination (3)
Semen collection, evaluation processing and handling. Inseminating techniques. Fertility problems. Record keeping and measurements of reproductive efficiency. Endocrinology of reproduction. Estrous synchronization, embryo transfer and splitting of embryos. Ovarian structure and palpation of ovaries. 2 lectures, 1 laboratory. Prerequisite: DSCI 121 or consent of instructor.
DSCI 332 Dairy Inspection (3)
California dairy codes and score cards used for dairy plants and farms. Quality tests of dairy products. Practice in inspecting and scoring dairy farms and factories. Organizational structure of inspection services. 2 lectures, 1 laboratory. Prerequisite: DPT 233, BACT 221.
DSCI 339 Internship in Dairy Science (1-12) (CR/NC)
Selected Dairy Science students will spend up to 12 weeks with an approved agricultural firm engaged in production or related business. Time will be spent applying and developing production and managerial skills and abilities. One unit of credit may be allowed for each full week of completed and reported internship. Degree credit limited to 6 units. Credit/No Credit grading only. Prerequisite: Consent of internship instructor.
DSCI 400 Special Problems for Advanced Undergraduates (1-2)
Individual investigation, research, studies, or surveys of selected problems. Total credit limited to 4 units, with a maximum of 2 units per quarter. Prerequisite: Consent of instructor.
DSCI 401 Physical and Chemical Properties of Dairy Products (3)
Composition, structure and properties of milk and other dairy foods. Physical and chemical changes which occur during processing and storage of dairy products. Objective measurement of physical and chemical properties. 2 lectures, 1 laboratory. Prerequisite: CHEM 328.
DSCI 402 Quality Assurance and Control of Dairy Products (3)
Current methods used to evaluate dairy products with respect to plant economics and consumer safety. Accurate procedures for chemical and biological testing, statistical approach to sampling, and design and interpretation of HACCP programs for assuring product quality and safety. 2 lectures, 1 laboratory. Prerequisite: DPT 233.
DSCI 422 Breeding and Selection of Dairy Cattle (4)
Evaluation of inherited characteristics in dairy cattle from an economic standpoint. Proving and selecting sires and dams. 3 lectures, 1 laboratory. Prerequisite: BIO 303, DSCI 241.
DSCI 431 Advanced Dairy Herd Management Field Studies (2) (CR/NC)
Visitation of large dairy farms in California. Attendance at selected herd management conferences and evaluation of large herd economics and management. Credit/No Credit grading only. Prerequisite: DSCI 101, DSCI 121, DSCI 301, DSCI 323. Recommended concurrent: DSCI 432.
DSCI 432 Advanced Dairy Herd Management (4)
Dairy herd management skills needed in dairy operations. Instruction and lab experience in management, records, feeding and nutrition, herd health, milk secretion, reproduction, mating and selection. 4 lectures. Prerequisite: DSCI 301, DSCI 323, DSCI 330, and DSCI 422. Corequisite: DSCI 431.
DSCI 433 Dairy Plant Management and Equipment (3)
Basic management principles applied to the dairy industry. Industrial organization and control. Dairy plant location, design facilities and layout. Survey of financing applied to the dairy industry. Maintenance and operation of the equipment. 3 lectures. Prerequisite: PHYS 121 and junior standing.
DSCI 434 Cheese and Fermented Dairy Foods (5)
Scientific methods, ingredients, and equipment used in the manufacture of various fermented dairy products, including cheeses, buttermilk, sour cream, and yogurt. 4 lectures, 1 laboratory. Prerequisite: DSCI 134, and BACT 221.
DSCI 435 Concentration/Fractionation and Butter Technology (5)
Technology of evaporation, drying and membrane separation processes applied to dairy fluids. Design and performance of evaporators, driers, and membrane processing systems. Equipment, ingredients, and methods needed to manufacture butter and dairy spreads. 4 lectures, 1 laboratory. Prerequisite: DSCI 134, FSN 217.
DSCI 450 Dairy Biotechnology (3)
Current biotechnology used on dairies. Microbiological techniques, biochemical polymorphisms, recombinant DNA technology and their application in dairy production. Applied activities in the culture, transfer and manipulation of embryos. 2 lectures, 1 activity. Prerequisite: ZOO 131, DSCI 121, DSCI 330, BIO 303, and CHEM 328.
DSCI 461, 462 Senior Project (2) (2)
Selection and completion of research-oriented projects under faculty supervision. Project results are presented in a formal report. Minimum 120 hours total time. DSCI 461: 1 seminar and supervision. DSCI 462: Supervision.
DSCI 463 Undergraduate Seminar (2)
Reports on student papers, bulletins, periodical articles, and dairy research experiments. Sources of dairy husbandry information. Practice in oral reporting. Recent developments and research work in the dairy industry. 2 lectures.
DSCI 470 Selected Advanced Topics (1-3)
Directed group study of selected topics for advanced students. Open to undergraduate and graduate students. Class Schedule will list topic selected. Total credit limited to 6 units. 1 to 3 lectures. Prerequisite: Consent of instructor.