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Full-Text Articles in Life Sciences
Ultrastructure Of Wheat (Triticum Aestivum) Leaf Cells Infected With Leaf Rust (Puccinia Recondita), And Wheat Streak Mosaic Virus, Saleh H. Shrief
Ultrastructure Of Wheat (Triticum Aestivum) Leaf Cells Infected With Leaf Rust (Puccinia Recondita), And Wheat Streak Mosaic Virus, Saleh H. Shrief
Electronic Theses and Dissertations
Puccinia recondita ultrastructure resembles that of other rust species. The urediospore infection was characterized by the formation of a specialized structure, the haustorium, within the leaf cells. The haustorium contains organelles such as nuclei, mitochondria, microbodies, ribosomes, lipid bodies, and vacuoles. A haustorial neck connects the haustorium with the haustorial mother cell, and contains a neck band made up of darkly stained material. The neck band was located at the last one third of its length toward the haustorium. The haustorial mother cell was situated intercellularly, and closely adhering to the cell wall, but contained few organelles, and the nucleus …
Environmental, Nutritional, And Physiological Factors Associated With Hoof Growth And Wear In Holstein Cows, Lisa Hartson Bemis
Environmental, Nutritional, And Physiological Factors Associated With Hoof Growth And Wear In Holstein Cows, Lisa Hartson Bemis
Electronic Theses and Dissertations
Environmental, nutritional, and physiological parameters associated with hoof growth and wear were evaluated using data from 140 Holstein cows in five herds. Growth and wear of the dorsal and lateral regions of the front and rear outside claws were measured at approximately 2 mo intervals over a 14 mo period. Housing facilities varied from continuous confinement on concrete to confinement in dirt lots and included loafing sheds, free stall barns, and one comfort stall facility with rubber mats. Lateral hoof regions grew 24% faster than dorsal regions in the front and 20% faster in the rear hooves. Rear hooves grew …
The Effects Of Calcium Hydroxide Treatment Of Sunflower Seeds On Ration Digestibility And Rumen Parameters In Holstein Steers, Ann C. Spearow
The Effects Of Calcium Hydroxide Treatment Of Sunflower Seeds On Ration Digestibility And Rumen Parameters In Holstein Steers, Ann C. Spearow
Electronic Theses and Dissertations
Digestibilities of rations containing 10% (dry matter basis) oil-type, rolled sunflower seeds treated with three levels- of calcium hydroxide were compared using .a randomized complete block design. Forty-eight Holstein steers were fed one of six completely mixed rations consisting of (DM basis) 44% corn silage, 10% chopped alfalfa hay, and 46% concentrate mix. Concentrate mixes contained: CSM = control; SCS =control+ 22% sunflower seeds; SCL = SCS + 3.5% additional limestone; SCH2, SCH4, and SCH8 = SCS + 2, 4, and 8% calcium hydroxide (% sunflower seed DM), respectively. Total rations were isonitrogeneous at approximately 16% crude protein and isocaloric …
The Manufacture Of Cheddar Cheese Using Vacuum Concentrated Milks, Charles A. Bemis
The Manufacture Of Cheddar Cheese Using Vacuum Concentrated Milks, Charles A. Bemis
Electronic Theses and Dissertations
The United States (US) cheese industry has grown rapidly in the past decade. From 1971 to 1981, milk fat utilization for cheese manufacture increased from 17.7 to 27.6% of the total US milk fat supply, accompanied by a 49% increase in sales of cheese per capita (34). Offsetting substantial increases in sales and prices for cheeses, there have been marked increases in the cost of labor, energy, waste treatment, raw materials, and equipment. Hence, the manufacturers are realizing narrower profit margins. As a survival mechanism, cheesemakers have sought to maximize cheese yields per unit of milk, since increases in cheese …
Factors In Ultrafiltration And Thermal Concentration Of Whey Affecting Commercial Lactose Crystallization, Howard Henry Bonnemann
Factors In Ultrafiltration And Thermal Concentration Of Whey Affecting Commercial Lactose Crystallization, Howard Henry Bonnemann
Electronic Theses and Dissertations
The source for lactose production in the United States is almost exclusively sweet (low acid) whey which is the byproduct of cheese manufacture. Its extraction from the whey is motivated largely by pressures to utilize whey components to advantage. The ability to recover lactose efficiently is important to the manufacturers because they are in business ·to make a profit. At current market prices this profit margin will be difficult to realize unless an operation is fairly large a11d quite efficient. However, when considering the alternative of disposing of whey or its components, including lactose, as waste instead of attempting to …