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 47 for “"Landrace"”.
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Effects of Orange (Citrus sinensis) Pulp-buffalo grass (Cenchruis cilliaris) silage on digestibility, growth performance and blood metabolites of windsnyer-type and large white x landrace crossed pigs
… (SAWIP) (27.2±3.9 kg) and 12 Large White- Landrace crosses (LW x LR) (28±9.8 kg) were fed diets containing different levels of bulk-ensiled OPBG ad libitum for 30 days, in a 2 X 3 (breed by level of OPBG (control, low (15% OPBG) and high (30% OPBG))) factorial arrangement. The apparent …
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Characterising four Cowpea (Vigna unguiculata (L.) Walp.) Mozambican landraces deposited in a seed bank for drought tolerance
… to select for more drought-tolerant cowpea landraces. This study has been therefore conducted in a temperature-controlled greenhouse at the University of Pretoria and in an open-sided tunnel house in Mozambique. The overall aim of the research work was to identify the most drought-tolerant …
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Evaluating three potential sources of germplasm to improve growth rate, grain yield, and harvest index in pearl millet
… lines with three exotic accessions, a primitive landrace, a weedy relative, and a wild relative, also were evaluated for grain yield and growth rate improvement;The wild accession had a higher growth rate than the other genotypes and this was caused by a difference in early growth patterns. The …
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Comparison of carcass composition, performance, and tissue deposition rates among breeds of swine
… (n = 53), Yorkshire (n= 31), Spotted (n = 15), Landrace (n = 15), Poland (n = 8), and Hampshire (n = 6). Due to small sample size, the Spotted, Landrace, Poland, and Hampshire breeds were combined in an All Other Breeds (AOB) category. Progeny were weighed and scanned beginning at a group mean …
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Canada Thistle Management Systems for Sustainable and Organic Farms
… studies were conducted on populations of USDA landrace and commercial sorghum accessions to evaluate morphological traits, regrowth potential, and suitability for cover cropping and biofuel applications. Canonical variates in Canonical Discriminant Analysis (CDA) indicated that the traits of …
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Polymerase chain reaction-based genotyping of swine MHC DQB and DRB alleles
… breeds (Meishan, Yorkshire, Hampshire, Duroc, Landrace, Berkshire, Chester White, Spotted Poland China, Poland China and Swedish Landrace) to confirm their ""universal"" utility. DNA products after genomic PCR amplifications were subjected to genotyping by restriction enzyme digestion and …
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Evaluation of the accuracy of simple body measurements for live weight prediction in growing-finishing pigs
… pigs. Study I used 72 barrows from a Landrace-based line; Study II used 72 barrows from each of a Landrace-based (the same line as used in Study I) and a Duroc-based line. Study I was carried out between 57.5 ± 7.1 and 126.6 ± 7.45 kg BW; Study II between 40.6 ± 4.9 and 126 ± 8.4 kg …
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Breed group effects on pregnancy rate and ewe performance in different seasons of the year
Thirty-one Dorset (D), 24 Finnish Landrace (F), 35 Barbados Blackbelly x Dorset (BD), 10 Dorset x Finn (F), 24 Finn x Dorset (FD) and 35 grade Rambouillet (R) ewes were exposed to rams in various seasons. Ewes were born in 1979 or 1980; no R ewes were born in 1980. Ewes were bred in April, 1980 …
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Computational pharmaceutics approaches to inform drug developability: focus on lipid-based formulations
… a further aim was to explore if analysis of landrace pig gastrointestinal fluids could facilitate increased bio-predictive performance of in vitro tools for LBFs. Methods: Data-driven computational models using various ML algorithms, with both classification and regression outputs, were …
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Effect of viral and host genetics on pcv2 replication in lymphoblasts and clearance by monocytes
… PMWS severity varies by host breed; notably, Landrace and Large White pigs exhibit more severe clinical manifestations than Piétrain pigs. Pathologic features of PMWS in wasted pigs include elevated viral loads, progressive lymphocyte depletion, and monocyte infiltration in the lymph nodes, …
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Optimation of Ontaku/ Oshikundu: Pearl millet and sorghum malts quality and conveniet premix development
… varieties Okashana 2 (SDMV 93032), Kantana (landrace) and Kangara (SDMV 92040), while sorghum varieties are Macia (SDS3220) and landrace commonly referred to as red sorghum. Malts of the two cereals were prepared by steeping in static water at 20-22°C for 2 hours wet and 2 hours air-rest for …
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Phytochemical diversity and genetics of purple corn
… corn maize germplasm identified a purple corn landrace, Apache Red (AR), with great pigment variability and intensity. Further breeding and investigation of this line resulted in the identification of AR lines with mostly pelargonidin-derived anthocyanins (orange-red) as opposed to the …
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Comparación de índices productivos y reproductivos de monta natural e inseminación artificial con semen congelado en cerdos
… se obtuvo el mayor peso a favor de la raza Landrace con 1.99 Kg. seguido de la raza duroc con 1.85 Kg. en el tratamiento de inseminación artificial, y para la monta natural el menor peso lo obtuvo la raza duroc con 1.44 Kg. y elmayor peso fue también la raza Landrace. la raza Yorkshire …
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Cassava root (Manihot Esculenta Crantz) characterisation and evaluation of process-induced changes on functional of its flour
… was conducted on two South African cassava landraces red (RCLR) and white (WCLR) highlighting their potential end-use properties. Response surface methodology (RSM) was employed in determining the linear, interactive and quadratic effect of varying concentrations of pre-treatment (0.6 – …
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Comparación de parámetros reproductivos bajo inseminación artificial y monta natural en cerdas, (Cofradia, G.E.P.)
… reproductoras estaban compuestos por las razas LANDRACE, YORKSHIRE y DUROC. Las variables evaluadas fueron: Tasa de concepción (T.C) y tasa de parición (T.P), números de crías por partos (N.C.P), peso vivo promedio del lechón en la camada al nacer (P.V.L.C), relación beneficio-costo (B-C). Los …
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Relationship of Piglet Birth Weight with Growth, Efficiency, Composition, and Mortality.
… farm. All pigs were farrowed from Large White x Landrace sows bred to Duroc boars. In trial one, 5,727 pigs were initially weighed. Individual mortality was tracked and BW weights were collected at weaning and placement in the finisher. Approximately half of the remaining live pigs at finishing …
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Perfil sorológico e virêmico de suínos da raça Piau e linhagem comercial naturalmente infectados com o Porcine circovirus 2 em diferentes fases de produção
… suínos da raça Piau e de uma linhagem comercial (Landrace x Large White x Pietrain) em uma granja subclinicamente infectada pelo vírus estudado. O experimento foi realizado na Granja de Melhoramento Genético (GMS) da Universidade Federal de Viçosa (UFV), na qual não é realizada a vacinação contra …
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Labordiagnostische Referenzbereiche bei unterschiedlichen Schweinerassen sowie histopathologische und immunhistochemische Untersuchung von Gehirnen älterer Sauen und Eber auf transmissible spongiforme Enzephalopathie im Rahmen der TSE-Studie
… blood ingredients, in comparison with “German Landrace and Edelschwein“. To conclude, the results show, that there are marked differences in characteristics. We detected a varying influence of the genotype on the hematological and chemical blood parameters. The varying concentration of the …
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Conservation genetics of traditional and commercial pig breeds, and evaluation of their crossbreeding potential for productivity improvement
… were completed, using the Large White (LW) and Landrace (LR) as the commercial comparison. Genetic diversity was assessed using a D-loop fragment of mitochondrial DNA for comparison between three purebred traditional breeds: Gloucester Old Spot (GOS), British Lop (BL) and Welsh (W), and …
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Avoiding trade-off when enhancing Fusarium head blight resistance of barley
… malting traits of Chevallier, an English malting landrace, was also undertaken. Chevallier compared favourably to NFC Tipple, a modern malting cultivar, for several malting characteristics including free amino nitrogen, diastatic power and wort β-glucan content. This demonstrates that Chevallier …
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