A5061061535- Genetic and phenotypic traits in livestock
- Genetic Mapping and Diversity in Plants and Animals
- Genetic diversity and population structure
- Livestock Management and Performance Improvement
- Rangeland Management and Livestock Ecology
- Livestock Farming and Management
- Animal Genetics and Reproduction
- Animal Diversity and Health Studies
- Effects of Environmental Stressors on Livestock
- Ruminant Nutrition and Digestive Physiology
- Wheat and Barley Genetics and Pathology
- Cancer-related molecular mechanisms research
- Milk Quality and Mastitis in Dairy Cows
- Animal Disease Management and Epidemiology
- Reproductive Physiology in Livestock
- Wildlife Ecology and Conservation
- Genomics and Phylogenetic Studies
- Identification and Quantification in Food
- Livestock and Poultry Management
- Pressure Ulcer Prevention and Management
- Meat and Animal Product Quality
- Intraoperative Neuromonitoring and Anesthetic Effects
- Vector-Borne Animal Diseases
- Spinal Cord Injury Research
- Animal Nutrition and Physiology
University of Pretoria
2015-2024
GS1 South Africa
2022
The Angora goat populations in Argentina (AR), France (FR) and South Africa (SA) have been kept geographically genetically distinct. Due to country-specific selection breeding strategies, there is a need characterize the on genetic level. In this study we analysed variability of goats from three distinct geographical regions using standardized 50k Goat SNP Chip. A total 104 (AR: 30; FR: 26; SA: 48) were genotyped. Heterozygosity values as well inbreeding coefficients across all autosomes per...
Since their domestication 10,500 years ago, goat populations with distinctive genetic backgrounds have adapted to a broad variety of environments and breeding conditions. The VarGoats project is an international 1000-genome resequencing program designed understand the consequences on diversity domestic goats elucidate how speciation hybridization modeled genomes set species representative genus Capra.A dataset comprising 652 sequenced 507 public sequences, including 35 animals representing...
Tools for the genomic evaluation of goats have generally lagged behind those other species. However, recent availability goat SNP50 consortium bead chip has marked a positive change this small ruminant Polymorphic loci can differ greatly between breeds same Exclusion fibre-producing breeds, such as Angora goat, during development genotyping array necessitates validation SNPs included on to allow applications that would accelerate genetic progress in mohair yield and quality. Forty eight...
The erosion of genetic diversity limits long-term gain and impedes the sustainability livestock production. In South African (SA) dairy industry, major commercial breeds have been applying estimated breeding values (EBVs) and/or participating in Multiple Across Country Evaluations (MACE). transition to genomic (GEBVs) selection strategies requires monitoring inbreeding current genotyped animals, especially considering comparatively small population sizes global SA. This study aimed perform a...
South African Angora goats are farmed under extensive production systems in relatively large herds. As a result, breeders make use of group and flock-mating that limit accurate parentage recording selection efficiency. In this study the aim was to refine panel microsatellite markers suitable for verification goats. The were first evaluated based on number alleles, allele frequency, PIC, HE, HO individual exclusion probability, secondly as part panel. Eighteen tested 192 representing...
Summary There are mainly three locally developed meat type goat breeds in South Africa namely the African Boer goat, Savanna and Kalahari Red. In order to maintain characteristics of these ensure that their unique traits not lost through continuous selection cross-breeding, it has become important revisit current breed standards introduce genetic characterization obtain diversity parameters. Both have established breeders associations while a club was founded for Red goats. These set breeds'...
Tswana goats that were kept in communal systems three agro-ecological regions Botswana characterized according to phenotypic measurements and genotypic data. Objective for 123 included bodyweight (BW), body length (BL), heart girth (HG), height at withers (HW), tail (TL), while qualitative traits coat colour presence or absence of horns beards. Age was estimated based on dentition. Hair samples collected from 48 the phenotyped animals largest region (central region) genotyped with Illumina...