226 publication(s) trouvée(s)
Article scientifique
Influence of selection for egg production on egg quality traits in Japanese quail
The current study investigated the influence of selection for increased egg production on external and internal egg quality traits over …
Article scientifique
Evaluation of female fertility in dairy cattle enterprises – A review
The aim of this article was to review the state of fertility of female dairy cattle in South Africa and …
Article scientifique
Use of essential oils in combination with fibrolytic enzymes to decrease in vitro ruminal methane production
Exogenous enzymes and essential oils (EOs) have both improved fibre digestion in ruminants, but the effect on ruminal fermentation and …
Article scientifique
Nitrogen balance response to varying levels of dietary protein in slow-growing Windsnyer pigs
Protein requirements for slow-growing pigs have not been defined. The study was designed to determine the relationship between the level …
Article scientifique
Quantitative sperm characteristics of Tankwa goats with special reference to hyperactivated motility
Computer-assisted semen analysis (CASA) is an automated and objective method of evaluating structural (e.g. morphology) and functional sperm parameters (e.g. …
Article scientifique
Growth and meat quality of broiler chickens fed Moringa oleifera leaf meal, a probiotic and an organic acid
Six hundred one-day-old broiler chicks were used to determine the effects of Moringa oleifera leaf meal (MOLM), a probiotic, and …
Article scientifique
Concentrations of faecal glucocorticoid metabolites in South African Mutton Merino sheep fed various sources of roughage
The objective of this study was to determine whether various sources of roughage in nutritionally balanced feedlot diets would evoke …
Article scientifique
Effect of including canola meal in diets of slaughter ostriches (Struthio camelus var. domesticus)
Canola meal (CM) is a locally produced protein source that may be less expensive than soybean meal (SBM). This study …
Article scientifique
Premium lamb production of South African sheep breed types under feedlot conditions
An increasing number of producers opt to finish their lambs in on-farm feedlots. Therefore, detailed production information is required to …
Article scientifique
Joint genetic analysis for dairy cattle performance across countries in sub-Saharan Africa
This study assessed the feasibility of across-country genetic evaluation of dairy cattle in sub-Saharan Africa where data on livestock production …
Article scientifique
Predicting the growth and feed intake of Boer goats in a feedlot system
This research sought to develop a mathematical model to predict the growth and feed intake of Boer goat kids destined …
Article scientifique
Genetic effects from an Afrikaner, Bonsmara, and Nguni three-breed diallel and top-crosses of Angus and Simmental sires
Individual and maternal breed additive effects and heterosis exist for most economically important traits in cattle. Crossbreeding may therefore be …
Article scientifique
Assessment of genetic variation in Bapedi sheep using microsatellite markers
This study was conducted to assess genetic variation in Bapedi sheep using 14 microsatellite markers. Blood samples were collected from …
Article scientifique
Genetic evaluation and selection correlated response of growth traits in Japanese quail
Objectives of the current study were to i) investigate effects of selection for bodyweight at four weeks old on bodyweight …
Article scientifique
Manipulating the onset of lambing season in communal ewes through hormonal intervention
The study was conducted to evaluate the effectiveness of using long-acting medroxyprogesterone acetate (MPA) to delay the lambing season in …
Article scientifique
Selenium and nano-selenium ameliorations in two breeds of broiler chickens exposed to heat stress
The objective of this study was to compare the effects of synthesized nano-selenium (NS) and commercial inorganic selenium (Se) on …
Article scientifique
Effect of different levels of supplementation after weaning on beef heifer development
The purpose of the study was to identify a cost-effective supplementation regimen to rear replacement heifers on transitional Cymbopogon-Themeda veld. …
Article scientifique
Performance trait analysis and genetic diversity of the SA Boerperd
This study determined the occurrence and frequency of mutations that influence performance traits in the SA Boerperd horse and evaluated …
Article scientifique
Effects of silage sealing films on fermentation dynamics of ensiled maize and nutrient utilization by Damara rams
An experiment was conducted to evaluate the effects of two silage sealing films on whole crop maize (WCM) fermentation, aerobic …
Article scientifique
Correlations between PORCUS classification and androstenone in boars, and effects of cooking methods thereon
The aim of this research was to evaluate relationships between the PORCUS classification system and factors affecting boar taint in …