Browsing by Postgraduate "Purchase, Cromwell"

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The integration of osmoregulation and energy balance in nectar-feeding birds

Purchase, Cromwell (University of Pretoria, 2013)

Nectar-feeding birds must ingest copious amounts of water due to their liquid diet. Large volumes of preformed water in the dilute diet mean that birds feeding on these diets risk the loss of solutes in order to excrete ...
The oral application of the Onderstepoort biological products fowl typhoid vaccine, its safety, efficacy and duration of protection in commercial laying hens

Purchase, Cromwell (University of Pretoria, 2008-08-12)

This project was undertaken to establish whether the Onderstepoort Biological Products Fowl Typhoid (OBPft) vaccine registered as an injectable vaccine was effective and safe when administered orally to commercial layers. ...

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