Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 522 for “"breed"”.
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Great individuals of the Guernsey breed
… 2. The greatest foundation sire of the Guernsey breed is Presto 14 PS. 3. The two greatest foundation cows of the Guernsey breed are May Rose II 3251 PS and Itchen Daisy 3d. 15630. 4. The two greatest sires or the Guernsey breed, based on the production of their daughters, are Ne Plus Ultra 15265 …
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Great sires of the Guernsey breed
… The two greatest foundation cows of the Guernsey breed were May Rose II and Itchen Daisy III. The four great families of the Guernsey breed, in order of their importance, are as follows: May Rose, Masher, Governor of the Chene, and Sheet Anchor. The three greatest sires of the breed, when judged …
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morphometricv assesments in the Belgian Blue Beef breed
… maten van het moederdier, bleek dat de achterhandbreedte van het kalf en de inwendige bekkenhoogte van de moeder, twee belangrijke factoren voor een natuurlijk geboorteproces, niet met elkaar in overeenstemming zijn. Op basis van deze bevinding kan geconcludeerd worden dat een natuurlijk …
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Evaluating the prevalence and effectiveness of breed-specific legislation
… health problem, which some jurisdictions pass breed-specific legislation (BSL) to address. However, very little non-anecdotal evidence regarding the efficacy of BSL has been presented. Currently, BSL research is hampered by the absence of standard terminology, an established prevalence, or a …
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On modeling and mitigating new breed of dos attacks
Denial of Service (DoS) attacks pose serious threats to the Internet, exerting in tremendous impact on our daily lives that are heavily dependent on the good health of the Internet. This dissertation aims to achieve two objectives:1) to model new possibilities of the low rate DoS attacks; 2) to …
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Conceptual design of a breed & burn molten salt reactor
A breed-and-burn molten salt reactor (BBMSR) concept is proposed to address the Generation IV fuel cycle sustainability objective in a once-through cycle with low enrichment and no reprocessing. The BBMSR uses separate fuel and coolant molten salts, with the fuel contained in assemblies of …
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An evaluation of the breed/burn fast reactor concept
Thesis (Sc.D.)--Massachusetts Institute of Technology, Dept. of Nuclear Engineering, 1980.
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Feasibility of breed/burn fuel cycles in pebble bed HTGR reactors.
Thesis. 1978. M.S.--Massachusetts Institute of Technology. Dept. of Nuclear Engineering.
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A study of face-covering in the Hampshire breed of sheep
Face-covering was studied in three purebred Hampshire flocks in Southwest Virginia. The method of evaluation consisted of the assignment of grades by each of a committee of graders acting independently. The scale of grades ranged from one for faces bare of wool beyond the poll to five for faces …
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Development of a multi-breed heifer pregnancy genetic evaluation in beef cattle
… for heifer pregnancy (HP) across several beef breed associations. These HP genetic evaluations typically rely on categorical exposure (1 = exposed; 0 = not exposed) and pregnancy outcome (1 = pregnant; 0 = not pregnant) data and involve the use of threshold animal models (TM) to convert these …
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Genetic Parameters for Udder and Teat. Type Traits in Icelandic Cattle Breed
… teat structure and teat tip are not included in breeding value estimations. The main objective of this study was to estimate genetic parameters for udder and teat type traits of Icelandic Cattle, but also to describe the traits’ phenotypic structure, to estimate their genetic trends, and to …
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Use of QTL identified in breed crosses for genetic improvement in pigs
… the exploitation of multiple QTL identified in breed crosses for genetic improvement of livestock were examined through marker-assisted introgression (MAI) and marker-assisted selection (MAS). Evaluation of the effectiveness of alternate strategies for MAI and MAS were carried out using …
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General analysis of breed-and-burn reactors and limited-separations fuel cycles
… excess" concept, which is useful for analyzing breed-and-burn (B&B) reactors and their fuel cycles. Based on this concept, a set of methods has been developed which allows a broad comparison of B&B reactors using different fuels, structural materials, and coolants. This new approach allows …
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Genetic variation within the Icelandic goat breed: assessment using population data and DNA analysis
The Icelandic goat breed is a very small closed population consisting of only about 500-600 animals kept in 45 herds. The breed is believed to have originated from Norway during the settlement of Iceland in the years 874-930 AD. Several population bottlenecks are known to have occurred and the …
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The genomics behind beauty: disentangling the complex coat color genetic architecture of gir breed
… with adaptive and productive processes. In zebu breeds such as Gir (Bos indicus), this trait exhibits wide phenotypic variability, constituting an important component of breed identity and attracting scientific interest in tropical dairy production systems. Pigmentation results from the activity …
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Core design and reactor physics of a breed and burn gas-cooled fast reactor
… a Gas-cooled Fast Reactor (GFR) operating in a Breed and Burnm (B&B) fuel cycle mode. B&B refers to a once-through fuel cycle where low enriched uranium (less than 5 w/o 235U in U) subcritical assemblies are loaded into the core in equilibrium, yet in-situ plutonium breeding carries the fuel …
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Virginia feeder cattle basis by season, location, sex, breed, weight and USDA grade differentials
… futures contract month, weight, lot size, sex, breed and USDA grade differentials. The models are more disaggregated and explain up to 80 percent more of feeder cattle basis variation than any previous research. Since the variables in these explanatory models are all known in advance, these …
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Breed group effects on pregnancy rate and ewe performance in different seasons of the year
… included effects of ewe birth year (EBY), breed/EBY, season/EBY, breed x season/EBY and ewe (random).
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