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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.
171

Testing the effectiveness and cost-efficiency of livestock guarding dogs in Botswana

Horgan, Jane Elizabeth January 2016 (has links)
Livestock guarding dogs (LSGDs) have been used for centuries to reduce depredation on livestock and more recently, to facilitate the conservation of threatened predator species. Conservation NGOs (non-government organisations) in southern Africa promote the use of Anatolian Shepherds as LSGDs. However, livestock farmers in Botswana have been using a variety of different breeds for this purpose, including the local mixed-breed “Tswana” dogs. Postal, telephonic and face-to-face interview questionnaires were administered to 108 livestock farmers in Botswana to gauge how their LSGDs were being used, in order to determine what factors contributed to the success and affordability of these dogs. Eighty-three percent of farmers had LSGDs which equaled or decreased livestock depredations on their farms, with an average reduction in livestock depredation of 75 percent per year. This equated to an average saving of US$2,017 annually per farm. The costs of purchasing (average US$27) and maintaining the 198 LSGDs in my study (average US$169/LSGD/year) were very low compared to other countries and helped contribute to the high profits obtained by farmers (average US$1,497/farm or US$789/LSGD). A unique investigation of different breeds was possible due to the diverse array of breeds in the sample (Anatolian Shepherds, Cross Breeds, Tswana dogs, Greyhounds and Pitbulls), with the crossbreed dogs (Crosses and Tswana LSGDs) performing the best. LSGDs that reduced depredation and had minimal behavioural problems were the most likely to incite positive changes in their owners in regards to attitudes towards predators. Sixty six percent of farmers stated that they were more tolerant of predators since obtaining a LSGD, and 51 percent reported that they were less likely to kill predators since obtaining a LSGD. My results indicate that successful, well-behaved LSGDs are a cost-effective tool that has the ability to increase farm productivity and improve predator-farmer conflicts in Botswana. The methods recommended in my thesis, in particular the benefits of using local breeds of dog as LSGDs, can be implemented on farming practices the world over to assist farming productivity and to promote conservation efforts.
172

The isolation and genetic characterization of canine distemper viruses from domestic dogs (Canis familiaris) in South Africa

Woma, Timothy Yusufu 14 July 2009 (has links)
Studies comparing canine distemper virus (CDV) strains from Africa with that of previously described lineages have been hampered due to a lack of field strains for in vitro experiments. There are no reports of CDV isolations in southern Africa, and although CDV is said to have geographically distinct lineages, molecular information of African strains has not yet been documented. Clinical specimens consisting of whole blood, spleen, lungs, brain and cerebrospinal fluid from dogs with clinical signs suggestive of distemper were obtained from private veterinary practices and diagnostic laboratories in Gauteng province, South Africa. One hundred and sixty two specimens from 124 dogs were inoculated into Vero cells expressing canine signalling lymphocyte activation molecule (Vero.DogSLAM). Cytopathic effects (CPE) in the form of syncytia formation and cell necrosis were observed in 33 (20.4%) specimens within 24 hours of inoculation and the presence of CDV was confirmed with the aid of the direct fluorescent antibody test and electronmicroscopy (EM). Viruses isolated in cell cultures were subjected to reverse transcription – polymerase chain reaction (RT-PCR), and the complete H gene was sequenced and phylogenetically analysed with other strains from GenBank. The animals all displayed the catarrhal, systemic, or nervous signs of the disease. Four of the dogs positive for CDV by viral isolation had a history of prior vaccinations to canine distemper. Seventy three percent of all positive dogs were less than 12 months old. There was no breed or sex predisposition to CDV infection in domestic dogs. Phylogenetic comparisons of the complete H gene of CDV isolates from different parts of the world (available in GenBank) with wild-type South African isolates revealed nine clades. All South African isolates form a separate African clade of their own and thus are clearly separated from the American, European, Asian, Arctic and vaccine virus clades. It is likely that only the ‘African lineage’ of CDV may be circulating in South Africa currently, and the viruses isolated from dogs vaccinated against CDV are not the result of reversion to virulence of vaccine strains, but infection with wild-type strains. Copyright / Dissertation (MSc)--University of Pretoria, 2008. / Veterinary Tropical Diseases / unrestricted
173

Effect of Enrichment Toys on the Behavioral Signs of Stress in Boarding Dogs

Watson, Hannah 15 August 2022 (has links)
No description available.
174

Degeneration studies of the fasciculi in N. ischiadicus in the dog

Ghaji, Abdurrahman Kasim January 2011 (has links)
Digitized by Kansas Correctional Industries
175

Studies on the staphylococci of canine origin with particular reference to the carrier state of pathogenic strains

Rajulu, P. Soundara January 2011 (has links)
Digitized by Kansas State University Libraries
176

A study of the effects of Acutalyn R

Ganapathy, Maharajapuram Subramania. January 1960 (has links)
Call number: LD2668 .T4 1960 F71
177

Transaminase activity in serum, urine, and cerebrospinal fluid of normal and diseased dogs

Hibbs, Clair M. January 1962 (has links)
Call number: LD2668 .T4 1962 H53
178

An electronic microscope study of the vaginal epithelium of the dog

Eddy, E. Mitchell(Edward Mitchell) January 1964 (has links)
Call number: LD2668 .T4 1964 E21 / Master of Science
179

NUCLEOLUS ORGANIZERS IN CHROMOSOMES OF THE DOMESTIC DOG, CANIS FAMILIARIS.

Hutchison, Holly Marie. January 1982 (has links)
No description available.
180

Molecular genetic investigations of rod cyclic GMP phosphodiesterase beta subunit in canine Generalised Progressive Retinal Atrophy

Clements, Peter James Mackenzie January 1995 (has links)
No description available.

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