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Now showing items 11-20 of 61
An evaluation of the microbial contamination of carcasses at a local red meat type C abattoir
(Potchefstroom University for Christian Higher Education, 1997)
The hygiene practices at a local abattoir were monitored. The main microbial spoilage organisms associated with red meat carcasses were enumerated and characterized from ten bovine carcasses. Instead of evaluating the final ...
The geochemical history of the sedimentary rocks of the Witwatersrand as reflected in the mineralogy of the heavy-mineral assemblage of the uranium-bearing reefs of the Central Rand Group
(Potchefstroom University for Christian Higher Education, 1990)
The well-known Archaean gold deposit on the Witwatersrand is the world's principal
source of this precious metal. A tectonically active hinterland comprising Archaean
granite-greenstone terrane and pre-Witwatersrand ...
'n Omgewingsbestuurstelsel vir wandelpaaie in die Golden Gate Hoogland Nasionale Park
(Potchefstroom University for Christian Higher Education, 1996)
The type and extent of the physical deterioration (erosion) of the hiking trail/rock
type associations in the Golden Gate Highland National Park and the possible
reasons for the deterioration are clear from the results ...
The role and development of intermediate regions in national physical planning
(North-West University, 1994)
Vir die doeleindes van hierdie studie word die nasionale fisiese ruimte
verdeel in drie spesifieke sones, naamlik die metropolitaanse streek (kern),
die intermediêre streek (oorgangsone), asook die periferie streek wat ...
Die benutting van Eisenia fetida (oligochaeta) vir die vermikompostering van abattoirafval
(North-West University (South Africa), 1990)
The objective of this study was to determine whether the compost
worm Eisenia fetida could be utilized in the vermistabilization of
organic waste (rumen content of cattle) in a dug out bed system.
Basic studies to ...
Aspects of the biology and population dynamics for the integrated control of the mango scale Aulacaspis tubercularis Newstead in South Africa
(Potchefstroom University for Christian Higher Education, 1993)
Post embryonic development of the mango scale, Aulacaspis tubercularis Newstead, comprises of two larval instars and an imago in the female, and two larval instars, two pupal instars (prepupa, pupa), and an imago in the ...
The qualitative and quantitative evaluation of estrogen and estrogen-mimicking substances in the South African water environment
(Potchefstroom University for Christian Higher Education, 1998)
Recently some chemicals has been accused of mimicking the female hormone estrogen. The mode of action is termed estrogen-mimicking, because of the effects that is produced by these chemicals. Playing canary in a coal mine, ...
Die invloed van variërende vrywatervlakke in grond van die noordwestelike O.V.S. op verbouing van gewasse (veral mielies)
(1991)
Results of research about the origin of water tables in yellow brown apedal sands which occur extensively in the northwestern O.F.S. and its influence on the production of maize are discussed. Morphologic characteristics, ...
'N Vergelykende ondersoek na die invloed van kopersulfaat op vier geselekteerde varswaterslakspesies
(North-West University (South Africa), 1995)
In this study the effect of copper sulphate exposure on some freshwater snails was
investigated. Four species were selected for this investigation. Two containing
haemoglobin viz. Biomphalaria glabrata, Helisoma duryi, ...
Development of degradation models for Botsalana game reserve
(North-West University (South Africa), 1999)
In this study, sites were selected t o deliberately represent the
different levels o f degradation in Botsalano Game Reserve which
is situated 30Km north of Mafikeng in the Lehurutshe region,
Northwest Province, and ...