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Estimation of genetic and non-genetic parameters for growth traits in two beef cattle breeds in Botswana

Raphaka, Kethusegile (Stellenbosch : Stellenbosch University, 2008-03)

ENGLISH ABSTRACT: Research conducted on beef cattle in Botswana investigated both growth and reproduction. These studies however, did not specifically determine the influence of the different environmental factors on growth ...
Estimation of genetic parameters for fertility traits and the effect of milk production on reproduction performance in South African Holstein cows

Potgieter, Johannes Phillipus (Stellenbosch : Stellenbosch University, 2012-03)

ENGLISH ABSTRACT: Profitable milk production and genetic improvement in dairy herds are largely dependant on fertile cows capable of calving down on an annual basis. Several studies indicate declines in the reproductive ...