Thesis (Ph. D.)--University of Wisconsin--Madison, 1967. / Typescript. Vita. Description based on print version record. Includes bibliographical references.

Thesis (M.S.)--Montana State University--Bozeman, 2005. / Typescript. Chairperson, Graduate Committee: John M. Marsh. Includes bibliographical references (leaves 68-71).

Thesis (Ph.D.) - University of Queensland, 2004. / Includes bibliography.

Thesis (M.S.)--West Virginia University, 2005. / Title from document title page. Document formatted into pages; contains ix, 64 p. : ill. (some col.). Includes abstract. Includes bibliographical references (p. 49-60).

Thesis (Ph. D.)--University of Wisconsin--Madison, 1968. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.

Thesis (M.S.)--Wisconsin. / Includes bibliographical references (leaves 262-265).

Thesis (Ph. D.)--University of Missouri-Columbia, 2005. / The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Title from title screen of research.pdf file viewed on (November 7, 2006). Vita. Includes bibliographical references.

Thesis (M.S.)--Ohio State University. / Bibliography: leaves 156-159.

Apparent digestibility of forage soybean silage was evaluated utilizing a dual continuous flow apparatus in a Latin Square design. The fermenters were inoculated with a mixture of rumen fluid from two ruminally cannulated Angus cows. Fermenters were randomly assigned to one of the following treatments: 1) 76.1% alfalfa silage, 16.1% corn stover, 6.7% dry distiller’s grains (CON); 2) 75.1% soybean silage, 6.5% corn stover, 17.3 % soyhulls (SB); 3) 63.5% soybean pearl millet mixed silage, 15.2% corn stover, 20.2 % soyhulls (SBPM);4) 61.4 % rye grass, 14.8% corn stover, 4.8% dried distiller’s grains, 18.0 % soyhulls (RYE). All diets contained 1.1 % Purdue Heifer developer and were balanced to meet or exceed NRC requirements for a developing heifer and to contain 13.9% crude protein. Treatment had no effect (P ≥ 0.43) on the apparent ruminal digestibility of dry matter (DM), neutral detergent fiber (NDF), acid detergent fiber (ADF) or crude protein (CP). The SB forage source had the greatest (P = 0.03) fat digestibility compared to SBPM but similar to CON and RYE. Data suggests that the digestibility of forage soybean silage is similar to the digestibility of alfalfa silage. Additionally, if a producer is interested in planting a mixture of forage soybeans and pearl millet silage it too is similar in digestibility when compared to forage soybean alone and alfalfa silage.

The objective of this study was to determine the effect of selected traits such as age, sex, body weight, body length and height, body condition score (BCS), coatscore (CS), skin thickness and average skin surface temperature on tick burdens in beef cattle. Bonsmara cattle (n= 143) were used to measure visible tick counts, body condition score, coat score, skin thickness, body height and length, body weight, body surface temperature, gender and inter calving period. Measurements were taken from April to December. All animals were managed extensively on natural and cultivated pastures near George in the Southern Cape. Female animals had significantly (p<0.05) greater tick infestation (37.98±2.7) compared to male animals (16.52±1.2). Age was a significant factor (p<0.001) with the younger animals below two years having (46.40±5.26) more ticks than those of two years and older (20.15±2.44). A significant negative correlation (p<0.001; -0.29) was reported between the infestation of ticks on the animals and the age of the animal. Animals with an average body weight below 250kg had 42% (p<0.05) more ticks compared to animals with a body weight above 250kg. Age of the animal and weight were highly correlated (r= 0.70); p<0.001), while the correlation between the number of ticks per cow and the mean weight was negatively correlated (r= -0.37; p<0.001). Skin surface temperature significantly influenced tick infestation on the animals (p<0.001). The degree of infestation increased as body surface temperature exceeded 30º C. Coat score, skin thickness, body condition score and inter calving period did not significantly influence tick infestation on the animals. The infestation of ticks on the animals were significantly influenced by body height (p<0.019) and body length (p<0.001). Animals smaller than a 130cm in height had a significantly (p<0.05) greater tick infestation (36.5±5) compared to animals taller than 130cm (21.2±1.5). This trend was also observed for body length. Animals with a body length shorter than 145cm had a greater (p<0.05) average tick infestation of 41.3±4.5 compared to 23.2±1.3 to animals longer than 145cm, indicating a 44% greater tick infestation in favour of the shorter animals. For increased production and tick resistance animals should have smoother coats and be able to dissipate heat effectively.