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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
411

An assessment of the effects of dietary oil supplementation on fetal survival in gilts at 40 days of gestation /

Rigau, Alberto P'erez, January 1993 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1993. / Vita. Abstract. Includes bibliographical references (leaves 64-77). Also available via the Internet.
412

Die effek van anioniese soute in die prepartum rantsoen op die insidens van peripartale toestande, melkproduksie en vrugbaarheidsprestasie van 'n hoog produserende Frieskudde

Van Dijk, Christiaan Jozua. January 1998 (has links)
Thesis (MMedVet (Bov.))-University of Pretoria, 1998. / Includes bibliographical references.
413

Amino acid digestibility and performance of broiler chickens /

Huang, Huajin Kim. January 2004 (has links) (PDF)
Thesis (Ph.D.) - University of Queensland, 2005. / Includes bibliography.
414

Characterization of vitamin D activity in human and bovine milk

Reeve, Lorraine E. January 1981 (has links)
Thesis (Ph. D.)--University of Wisconsin--Madison, 1981. / Typescript. Vita. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
415

The effect of dietary calcium and phosphorus on intestinal calcium transport the role of vitamin D and parathyroid hormone /

Ribovich, Martin L. January 1977 (has links)
Thesis--Wisconsin. / Vita. Includes bibliographical references (leaves 194-203).
416

The effect of a vitamin B12 deficiency on folic acid metabolism in germ-free and conventional rats

La Iacona, Barbara Gail, January 1968 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1968. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
417

Development of one-step strip test for rapid detection of antibiotic residues in animal body fluid and food animal products /

Meng, Li. January 2006 (has links)
Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2006. / Includes bibliographical references (leaves 107-118). Also available in electronic version.
418

Roles of calcitriol and its analog on canine transitional cell carcinoma in vitro and in vivo, and in normal canine prostate tissue explants

Kaewsakhorn, Thattawan, January 2007 (has links)
Thesis (Ph. D.)--Ohio State University, 2007. / Title from first page of PDF file. Includes bibliographical references (p. 95-105).
419

Production of enzymes for application on animal feeds

Godana, Busiswa January 2007 (has links)
Thesis (M.Tech.: Biotechnology)-Dept. of Biotechnology, Durban University of Technology, 2007 v, 125 leaves / Ruminants diets in most developing countries are based on fibrous feeds, mainly mature pastures and crop residues. These feeds are unbalanced and particularly deficient in protein, minerals and vitamins and are highly lignified with low digestibility. These characteristics result in low intake and productivity and only approximately 40% of energy in forage becomes available to the animal. Enzymes can be used as biological tool to enhance digestion through the action of cellulase, hemicellulase and lignase enzymes resulting in improved meat, milk and wool production. The development of feed additives holds great promise for the improvement of livestock growth and yield for both large commercial and smaller subsistence farmers. The aim of this study was to develop optimal media for the production of lignocellulolytic enzymes (laccases, xylanases, and cellulases) and to evaluate the application of these enzymes to improve the nutritional digestibility of high fibre feedstocks, such as veld grass.
420

Desenvolvimento de fêmeas leiteiras mediante o uso de leite cru ou sucedâneo

Zanotti, Josinaldo 19 December 2013 (has links)
O Brasil se destaca na produção mundial de leite, sendo responsável por 5,28% do total produzido. A atividade no estado do Paraná, principalmente na região Sudoeste, é caracterizada por pequenas e médias propriedades que tem na atividade leiteira a maior ou a segunda maior fonte de renda familiar. Frente ao exposto, significativo é também a quantidade de bezerras que são criadas anualmente, no entanto, em muitos casos, os animais jovens não recebem os cuidados necessários em sua criação, uma vez que não trazem retorno financeiro imediato a propriedade. O objetivo do presente estudo foi avaliar o desempenho e a viabilidade econômica de fêmeas leiteiras em fase de aleitamento recebendo leite cru ou sucedâneo comercial. O experimento foi conduzido em propriedades leiteiras nos municípios de Dois Vizinhos, São Jorge D’Oeste e Cruzeiro do Iguaçu,localizados na região Sudoeste do Paraná. Utilizaram-se 32 bezerras recém nascidas até o desmame, sendo 16 em cada tratamento. Posterior ao desmame utilizou-se 14 bezerras, sendo sete em cada tratamento. Para ambos os tratamento foram usados animais da raça Holandês preto e branco. O experimento foi realizado no período de março/2012 a agosto/2013. Avaliaram-se dois tratamentos, sendo um alimentação das bezerras com leite cru e o outro à base de sucedâneo do leite. Foi aferido o ganho de peso, perímetro torácico, perímetro abdominal, a altura de cernelha, altura de garupa, comprimento de garupa, largura de garupa, perímetro de garupa, e o comprimento corporal do animal. Não foram observadas diferenças significativas (P>0,05) para todas as variáveis morfológicas avaliadas. Os animais apresentaram ganho de peso médio de 592,55 e 588,96 g para leite e sucedâneo,respectivamente, no período de amamentação. Posteriormente ao desmame os animais apresentaram média de ganho de peso de 826,24 e 783,30 g para leite e sucedâneo, respetivamente. Um aspecto importante a destacar é de que em produções de grande escala, o sucesso do preparo do ucedâneo é mais garantido devido à mão de obra especializada e exclusiva apenas para o setor de cria e recria das categorias jovens, o que não acontece em pequenas propriedades de mão de obra familiar, em que normalmente uma ou duas pessoas realizam várias atividades.A utilização de sucedâneo lácteo é uma alternativa eficiente para substituição do leite cru, desde que se tenha disponível tempo e mão de obra qualificada para o preparo e o produto tenha boa formulação e facilidade de mistura. / Brazil stands out in worldwide milk roduction, it is responsible for 5,28% of the total produced. The activity in Paraná State, mainly in Southwest region, is characterized for small and medium farms that have this activity as the biggest or the second source of family income. According to this, it is significant the amount of heifers that are created annually, however, in many cases, the young animals do not have the the appropriate care, since they do not bring immediate financial return for the farm. The aim of this study was to evaluate the performance and the economic viability of dairy females receiving raw milk or milk substitute. The experiment was carried out on farms in Dois Vizinhos, São Jorge D’Oeste and Cruzeiro do Iguaçu, in Paraná Southwest region. Thirty-two new-born calves were used until weaning, sixteen in each treatment. After weaning, fourteen calves were used, seven in each treatment. For both treatments black and white Holstein animals were used. The experiment was carried out from March/ 2012 to August/ 2013. Two treatments were evaluated,one feeding the calves with raw milk and the other based on milk substitute. Weight gain, chest girth, abdominal girth, withers height, rump height, rump length, rump width, rump girth and animal body width were measured. No significant differences (P>0,05) were observed for all the evaluated morphological variables. The animals presented average weight gain of 592,55 and 588,96g for milk and substitute, respectively, during lactating period. After the weaning the animals presented average weight gain of 826,24 and 783,30g for milk and substitute, respectively. An important point to note is that in large-scale productions, the successful preparation of the substitute is more assured due to the exclusive skilled labor for raising and restocking sector of youth categories, which does not happen in family small farms,where usually one or two people perform various activities. The use of the substitute is an efficient alternative to replace the raw milk, since there is time and qualified skilled labor to prepare and the product presents good formulation and ease of mixing.

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