Thesis (M.S.)--University of Missouri-Columbia, 2007. / 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 January 16, 2008) Includes bibliographical references.

Thesis (M.S.)--California Polytechnic State University, 2009. / Title from PDF title page; viewed on Apr. 21, 2009. "March 2009." "In partial fulfillment of the requirements for the degree of Master of Science in Agriculture." "Presented to the faculty of California Polytechnic State University, San Luis Obispo." Major professor: Phil Tong, Ph.D. Includes bibliographical references (p. 102-103). Also available on microfiche.

Thesis (Ph. D.)--University of Missouri-Columbia, 2004. / Typescript. Vita. Includes bibliographical references (leaves 111-129). Also available on the Internet.

Thesis (Ph. D.)--University of Missouri-Columbia, 2004. / Typescript. Vita. Includes bibliographical references (leaves 111-129). Also available on the Internet.

Thesis (Ph. D.)--University of Missouri-Columbia, 1998. / Typescript. Vita. Includes bibliographical references (leaves 168-176). Also available on the Internet.

Thesis (Ph. D.)--University of Missouri-Columbia, 1998. / Typescript. Vita. Includes bibliographical references (leaves 168-176). Also available on the Internet.

O objetivo deste trabalho é determinar um processo com qualidade suficiente para produzir revestimentos de zinco a partir de banho ácido à base de cloreto de potássio, por meio de comparação de resultados. O estudo foi realizado comparando dois tipos de banhos disponíveis no mercado, através da caracterização das amostras produzidas em um protótipo da linha de galvanização, projetada para simular o processo industrial. Neste trabalho, foram avaliados parâmetros operacionais e a influência dos aditivos e formulação básica. Na avaliação da qualidade do depósito, além da determinação da espessura de camada, foram avaliadas sua uniformidade através do ensaio de Preece e a morfologia por microscopia eletrônica de varredura. O desempenho em corrosão foi comparado em ensaio de corrosão acelerada em câmara úmida e espectroscopia de impedância eletroquímica. A influência dos aditivos na polarização dos banhos foi avaliada no ensaio de voltametria. As análises permitiram determinar o banho com melhor e mais estável resultado no produto, conhecer a influência das condições operacionais e dos aditivos no depósito, além do melhor desempenho em corrosão. / The goal of this study is to determine a process with sufficient quality to produce zinc coatings from acid bath of potassium chloride, by comparison of results. This study was conducted comparing two types of baths available in the market through the characterization of the samples produced in a prototype in-line galvanizing, designed to simulate the industrial process. In this work, were assessed operational parameters and the additives and basic formulation influence. In the assessment of deposit quality, in addition to determining the layer thickness, its uniformity was evaluated by Preece test and morphology by Scanning Electronic Microscopy. The performance in corrosion was compared by accelerated corrosion test in a moist chamber and Electrochemical Impedance Spectroscopy. The additives influence in the baths polarization was evaluated in the Voltammetry test. The analysis allowed to determine the bath with better and more stable results in the product, knowing the influence of operating conditions and additives on the deposit, in addition to better performance in corrosion.

The aim of this diploma thesis was to verify the effectiveness of phytogenic additives in utility parameters of poultry.The experimental study was conducted at the research station of the company Delacon Research Station PNRC s.r.o. in Stošíkovice on Louce.The experiment was carried out with little roosters hybrids ROSS 308. The fattening took 42 days and the three-phase feeding BR 1, BR 2 BR 3 was applied. Phytogenic additives were added to all kinds of feed mixtures. Given that this is a primary research of a private company, it is not known the exact structure of the used additives, which the company protects as its know-how. Additives were based on saponins in combination with other substances of phytogenic origin. During the process of fattening, the utility parameters of the experimental groups were monitored, which were then compared to the control group.Experimental groups showed a positive effect in several utility parameters at particular periods, statistically conclusive positive results were obtained only in the feed conversion in one experimental group during the 29th - 42nd day of fattening and in three experimental groups in whole fattening evaluation from 1. - 42nd day.

The Livestock production is in many ways a progressive discipline, which is characterized in that it blends several seemingly unrelated industries. One of the most important nutrition and feed livestock. With the development of the cultivation of maize (Zea mays), and the need for its preservation, it was necessary to develop a methodology proper ensiling. This practice establishes the correct principles for the production of high-quality, nutritional value and harmless silage. It already belongs to the selection of the optimal hybrid, suitable agronomic measures during cultivation, build a functional and efficient silage lines, selection and application of additives, proper layering and ramming masses and responsible handling of ready-made food, including a ration.

Made available in DSpace on 2014-06-11T19:32:13Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-12-19Bitstream added on 2014-06-13T19:21:38Z : No. of bitstreams: 1 roth_aptp_dr_jabo.pdf: 323213 bytes, checksum: 488c5897eda778f368a0f83fc5c0778d (MD5) / Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) / Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) / Foram realizados dois experimentos com o objetivo de avaliar os efeitos da queima e a utilização do óxido de cálcio na produção de silagens de cana-de-açúcar. No primeiro experimento as avalições foram realizadas antes da ensilagem e nas silagens de cana-de-açúcar in natura tratada ou não com 1% de óxido de cálcio, silagens de cana-de-açúcar queimada e colhida com 1 dia após a queima tratada ou não com 1% de óxido de cálcio, e silagens de cana-de-açúcar queimada e colhida com 10 dias após a queima tratada ou não com 1% de óxido de cálcio. O processo de queima reduziu os teores de matéria seca em média 34 g/kg, fibra em detergente neutro 137 g/kg, fibra em detergente ácido 71 g/kg e lignina 9 g/kg. A adição do óxido de cálcio elevou os teores de matéria mineral da cana-de-açúcar em média 30 g/kg. As silagens de cana-de-açúcar in natura apresentaram os maiores teores de matéria seca (275 g/kg) e fibra em detergente neutro (694 g/kg) e as menores produções de efluente (6 kg/t) e perdas por gases (124 g/kg) resultando em maiores recuperações de matéria seca (822 g/kg). O tratamento com óxido de cálcio nas silagens de cana-de-açúcar, independente do manejo, aumentou os teores de matéria seca em média 39 g/kg e recuperação de matéria seca 151 g/kg e reduziu as perdas por gases em média 84 g/kg e teores de fibra em detergente neutro 147 g/kg. No segundo experimento avaliaram-se as silagens e dietas contendo silagens de cana-de-açúcar in natura tratada ou não com 1 % de óxido de cálcio, silagens de cana-de-açúcar queimada e colhida 1 dia após a queima tratada ou não com 1 % de óxido de cálcio, e silagens de cana-de-açúcar queimada e colhida 10 dias após a queima tratada ou não com 1 % de óxido de cálcio. No período de adaptação (0 a 28 dias) houve redução na ingestão de matéria seca dos... / Two experiments were carried out in order to evaluate the effects of burning and calcium oxide in the production of sugarcane silage. In the first experiment the evaluations were made before the ensilage and in the in natura sugar cane silage treated or not with 1% of calcium oxide, burned sugar cane silage and harvest one day after the burn treated or not with 1% of calcium oxide, and burned sugar cane silage and harvest 10 days after the burn treated or not with 1% of calcium oxide. The burning process reduced the levels of dry matter in average 34g/kg, neutral detergent fiber in 137 g/kg, acid detergent fiber in 71 g/kg and lignin in 9 g/kg. The addition of calcium oxide increased levels of sugar cane ash in average 30g/kg. The in natura sugar cane silage presented higher levels of dry matter (275g/kg) and neutral detergent fiber (694g/kg) and less effluent production (6kg/t) and gas losses (124g/kg) resulting in bigger dry matter recovery (822g/kg). The treatment with calcium oxide in sugar cane silage, not taking into account the management, increased the dry matter levels in average 39g/kg, dry matter recovery 151g/kg reducing the gas losses in average 84g/kg and neutral detergent fiber levels 147g/kg. In the second experiment the silage and total mix ration were evaluated having in natura sugar cane silage treated or not with 1% of calcium oxide, burned sugar cane silage and harvest one day after the burn treated or not with 1% of calcium oxide, and burned sugar cane silage and harvest 10 days after the burn treated or not with 1% of calcium oxide. In the adaptation period (0 up to 28 days) there was a reduction in the animals intake fed with total mix ration with burned sugar cane silages and harvest in 1 or 10 days (average 6.3kg/day) and the daily weight gain was lower (average -0.026kg/day).The addition of calcium oxide... (Complete abstract click electronic access below)