To determine whether pregnancy modifies the hyperlipidemic response to a cholesterol-rich diet, pregnant and virgin rats were fed a semisynthetic diet supplemented (CRD) or not (CD) with 2% cholesterol and 1% cholic acid and studied at d 20 of treatment and/or gestation. Plasma triglycerides, free fatty acids and glycerol and liver triglycerides were greater in pregnant than in virgin rats fed ...

By 2030, climate change is likely to have implications for the Australian wool industry, principally through effects on forage and water resources, land carrying capacity and sustainability, animal health, and competition with other sectors, in particular cropping. The nature and scale of these impacts will vary between the wool growing regions, depending on the manifestation of the climate cha...

serious restrictions on the extensibility of the spiral. I t may be calculated from columns 3, 4 and 5 of Table I that the cystine content of Fraction I corresponds to approx, only I cystine residue/3o non-cystine residues, whereas the average for wool is i :i6. This favours the possibility that the cystine is intra-linked in Fraction I and corresponds to the AB cystine fraction of PHILLIPS. Th...

The analysis of PAHs in environmental samples involves sampling, extraction, concentration and final analysis using GCMS. Traditional extraction of PAHs from a solid matrix, where much of the PAH reside, is a tedious and time consuming process. Thermal desorption (TD) can replace the traditional sample preparation step in the analysis scheme with a more efficient and direct method, which also e...

An experiment was designed to evaluate the effects of five sire breeds (Dorset, Finnsheep, Romanov, Texel, and Montadale), two dam breeds (Composite III [CIII] and northwestern whiteface [WF]), and three shearing seasons (December, February, and April, corresponding to August, October, and December breeding seasons) and their interactions on wool and other characteristics of F1 ewes. Fleeces we...

Management of gastrointestinal parasites is a critical issue for sheep producers worldwide. Increases in the prevalence of drug-resistant worms have complicated parasite control and increased economic losses. Therefore, other methods of parasite control need to be assessed, including the use of genetically resistant animals in breeding programs. Hair sheep breeds such as the St. Croix have grea...

No significantly adverse effects of twinning were observed in either liveweight gain or wool growth rate. Singles and twins were similar in weight and secondary follicle/primary follicle (Sf/Pf) ratio at birth; subsequent Sf/Pf development was not affected by birth-type, and liveweights did not differ at any time. Wool production, measured by mid-side-patch clipping, was not affected by type of...

Five insulin dependent diabetic patients are reported on who had a few small retinal cotton-wool spots or 'soft exudates' either totally isolated or associated with fewer than 10 microaneurysms. These observations suggest that cotton-wool spots may be an early finding in diabetic retinopathy. Significant biological abnormalities in these patients were high levels of glycosylated haemoglobin and...