E-Dissertationen: Auflistung E-Dissertationen nach Klassifikation (DDC) "ddc:590"
Anzeige der Dokumente 1-19 von 19
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Candidate gene analysis for loci affecting sperm quality and fertility of boar
Lin, Cailu (2005)Fertility is one of the most important economical traits in swine production. Implementation of artificial insemination (AI) in swine production allowed improving selection on the boars for production traits, but at the ... -
Changes of inner teat morphology caused by the milking process and by incomplete milking during dry-off as assessed by innovative technologies
Martin, Lisett Marie (2020-03-03)In dairy farming, the timing of the lactation cycle and the way of milk removal differ considerably from the natural conditions. Ensuring good health and wellbeing of farm animals is of great interest from both an economic ... -
Characterization of insulin sensitivity and inflammation related factors in dairy cows receiving conjugated linoleic acids (CLA) or a control fat supplement during lactation
Saremi, Behnam (2013-08-20)With the onset of lactation, dairy cows have to mobilize body reserves, mainly body fat, to cover the output of energy via milk. The homeorhetic metabolic adaptation to the needs of milk production is accomplished through ... -
Detection and characterization of QTL in a porcinen Duroc-Pietrain resource population
Liu, Guisheng (2005)In the present thesis, genome scans were performed for QTL detection in a F2 resource population which was reciprocally crossed between Duroc and Pietrain. 1085 F2 progeny within 38 full-sib families were produced from ... -
Einfluss der Bewirtschaftungsintensität und Landschaftsstruktur auf die Diversität der Saltatoria und Hymenoptera (Bombus) von Mittelgebirgsgrünland
Boller, Jörn Christian (2018-11-27)Grünland ist ein prägendes Element der Agrarlandschaft und zentraler Baustein der multifunktionalen Landwirtschaft. Unter anderem leistet es einen herausragenden Beitrag zur Erhaltung der biologischen Vielfalt. Die Quantität ... -
Epigenetic regulation of CD14 in TRIF pathway in pulmonary alveolar macrophages of German Landrace pigs
Yang, Qin (2016-05-24)Diseases of the respiratory system are a main problem in pig production. Pulmonary alveolar macrophages (PAMs) are key players to defend these respiratory diseases like lung inflammation caused by bacterial infection. ... -
Expression analysis of homeobox gene family in bovine pre- and post-implantative developmental stages
Ponce-Barajas, Patricio (2006)Homeobox (hox) genes encode transcription factors which regulate the expression of several target genes encoding essential proteins for cell differentiation and proliferation. Thus, hox-genes have long been recognized as ... -
Factorial Approach to Determining Energy and Protein Requirements of Gilthead seabream (Sparus aurata) for Optimal Efficiency of Production
Lupatsch, Ingrid (2004)Requirements for dietary energy and protein in growing fish can be quantified using the factorial approach which assumes that the requirement is the sum of growth and maintenance. Thus dietary intake can be calculated using ... -
Genetic factors affecting the omega-3 and omega-6 fatty acid variation in egg yolk
Nguyen Thi Kim, Khang (2006)This study aimed to elucidate the genetic divergence of quail lines selected for high and low ω-6:ω-3 PUFAs ratio in the egg yolk by estimation of the genetic parameters, to clone and characterize of the direct candidate ... -
Identification of candidate genes for boar taint using RNA deep sequencing
Gunawan, Asep (2013-07-11)The aim of the present study was to identify candidate genes for boar taint using RNA deep sequencing. For this purpose, two experiments were performed. In the first experiment, transcriptome profiling was analyzed in the ... -
Lucerne silage for high yielding dairy cows: evaluation of the nutritional value using chemical and in vivo methods
Trautwein, Julia (2018-02-07)Lucerne has a high yield potential and can provide ruminants with significant amounts of energy and protein as well as having excellent structural properties. This thesis focussed on the response (dry matter intake (DMI), ... -
MicroRNAs in the bovine ovary and placentas derived from in vivo, in vitro and nuclear transfer pregnancies
Hossain, Md. Munir (2010-12-15)MicroRNAs are the major class of gene regulating molecules playing pivotal roles at post-transcriptional level. Identification and expression profiling are the initial steps to understand their regulation of biological ... -
Modulation of Nrf2-mediated oxidative stress response in bovine granulosa cells and preimplantation embryos
Khadrawy, Omar Zainelabdeen Shehata (2019-11-13)Nrf2 is a redox sensitive transcription factor involved in regulation of antioxidants defense mechanism against various stressors. Maintaining reactive oxygen species (ROS) within cellular homeostatic levels is crucial for ... -
Molecular genetic analysis of bovine oocytes with different developmental potentials
Ghanem Osman Mohamed, Nasser (2009-06-04)Poor oocyte developmental potential contributes to reduced fertility in livestock species and hampers the application of biotechnology techniques in cattle industry that could be used for spreading certain genotypes with ... -
Molecular genetic analysis of positional candidate genes for mammary gland characteristics in pigs
Chomdej, Siriwadee (2005)Inverted teat reduce the number of functional mammary complexes in affected sows leading for reduction of piglet productivity and litter growth during the lactation period. This detect occures in commercial pig breeds with ... -
Role of termites for the distribution patterns of carbon and phosphorus fractions and the genesis of tropical soils, Brazil
Rückamp, Daniel (2012-07-27)Tropical soil fertility is limited by low phosphorus (P) availability, limited accumulation of organic matter and by advanced stages of pedogenesis. Termites are well-known soil-engineers, which accumulate clay, organic ... -
Use of Black Soldier Fly (Hermetia illucens) in bioconversion and feed production
Shumo, Marwa Abdel Hamid Ibrahim Hassan (2020-02-20)Population and economic growth, rapid urbanization and shifts in dietary preferences towards consuming more animal-derived products are some of the major challenges facing sub-Saharan Africa (SSA) today. Consequently, large ... -
Die Wirkung der Mikrogravitation auf das Abwehrsystemvon Schwertträgerfischen (Xiphophorus helleri, Heckel)in einem geschlossenen, aquatischen Ökosystem: immunologische und hämatologische Untersuchungen
Piepenbreier, Klaus (2006)<u>Background:</u> The effect of space flight conditions on the immune system of humans and rodents was investigated since the beginning of space flight. Until now there were no investigations of the influence of microgravity ... -
Zur tierökologischen Bedeutung der Elsbeere (Sorbus torminalis L. CRANTZ)
Werres, Jula Marie (2018-06-14)Mit der vorliegenden Dissertation soll das ökologische Beziehungsgeflecht der Elsbeere (<em>Sorbus torminalis</em>) erfasst werden, einer in Deutschland seltenen, in zerstreuten, kleinen Populationen vorkommenden Baumart ...