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Showing 1 to 4 of 4 for “"Romney Marsh sheep"”.
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Estimation of important genetic and phenotypic parameters of some productive traits in the New Zealand Romney Marsh sheep : a thesis presented in partial fulfilment of the requirements for the degree of Master of Agricultural Science at Massey University
Early in the 1920's, Fisher, Wright and Haldane provided the theoretical basis for studies in quantitative inheritance which was later extensively applied to animal breeding problems by Lush (1937), Dickerson and Hazel (1944) and others. The pioneering work of these authors led to the basic concept …
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The effect of chorioptic mange (Chorioptes bovis) on ram fertility : a thesis presented in partial fulfilment of the requirements for the degree of Doctor of Philosophy in Veterinary Science at Massey University
Chorioptic mange of the scrotum was induced in 14 of 27 rams during a study of the effects of scrotal mange on ram fertility. Scrotal lesions varied from those of only a few sq. mm in size to those which covered virtually all of the scrotum in an inflammatory exudate which was up to 5 cm thick. …