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Milko-Tester Analysis Of Milkfat Content Of Churned And Nonchurned Samples From Jersey And Holstein Dairy Cattle, Kazuko Monobe

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Milk samples from three Jersey and three Holstein herds were used to determine if the degree of churning correlated with the initial milkfat assay, and also to determine if the churned milkfat could be measured as accurately as the initial milkfat using the Milko-Tester.

Regression lines for the initial milkfat test versus churned milk- fat test fit polynomial curves. The degree of churning was greater for Jerseys than Holsteins and correlated with the initial milkfat test.

The repeatability of initial milkfat tests vas 0.98 for Jerseys and 0.99 for Holsteins. However, the repeatability of churned milkfat tests was lower for …

G77-363 Vitamin Requirements Of Beef Cattle, Paul Q. Guyer

University of Nebraska-Lincoln Extension: Historical Materials

Vitamins are organic substances that are required in very small quantities for various metabolic functions. Twenty-five to 30 have been identified, but cattle can synthesize all that are needed of these vitamins in the rumen except for two or three. Even though the supplemental amounts needed of these two or three vitamins (A and possibly D and E) are quite small, a deficiency can have a drastic effect on the animal. The NebGuide discusses these effects.

Antibodies To Milk Antigens In Human Coronary Heart Disease, Efstathios Spinos

Retrospective Theses and Dissertations

Milk protein has been implicated as a factor in the development of atherosclerosis. Significantly higher titers of antibodies (P < 0.0002) toward milk antigens were observed in patients suffering from coronary heart disease as compared to age matched controls. These hemagglutination titers were not sex related but may have been related to age. Specificity of the antigen-antibody reaction was demonstrated by a hemagglutination inhibition test. The complement fixation test was evaluated and was less sensitive than the tanned hemaggIutination test. Treatment with 2-mercapto-ethanol resulted in reduced hemagglutination titers, indicating that significant antibody activity may be due to IgM. A special application of the Combs test detected specific antibodies on the surface of tanned and coated RBC which did not otherwise produce detectable agglutination.