https://ogma.newcastle.edu.au/vital/access/ /manager/Index ${session.getAttribute("locale")} 5 https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:51835 Wed 20 Sep 2023 11:16:44 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:48777 Wed 05 Apr 2023 14:02:46 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:45400 Thu 27 Oct 2022 17:36:16 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:33671 Thu 27 Jan 2022 15:56:16 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:15943 Thu 11 Jul 2019 11:42:44 AEST ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:7016 Sat 24 Mar 2018 10:46:27 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:42509 Acridotheres tristis) and measured eye patch coloration as a function of the food combinations individuals selected. Mynas had access to either water or carotenoid-supplemented water and could either eat a standard captive diet or choose freely between three nutritionally defined pellets (protein, lipid or carbohydrate). Mynas supplemented with both carotenoids and macronutrient pellets had higher color scores than control birds. Male coloration tended to respond more to nutritional manipulation than females, with color scores improving in macronutrient-and carotenoid-supplemented individuals compared with controls. All mynas consuming carotenoids had higher levels of plasma carotenoids, but only males showed a significant increase by the end of the experiment. Dietary carotenoids and macronutrient intake consumed in combination tended to increase plasma carotenoid concentrations the most. These results demonstrate for the first time that consuming specific combinations of macronutrients along with carotenoids contributes to optimizing a colorful signal, and point to sex-specific nutritional strategies. Our findings improve our knowledge of how diet choices affect signal expression and, by extension, how nutritionally impoverished diets, such as those consumed by birds in cities, might affect sexual selection processes and, ultimately, population dynamics.]]> Mon 28 Nov 2022 15:02:47 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:46881 Teleogryllus oceanicus. Our study revealed that species richness decreased as crickets consumed more macronutrients, and species evenness peaked at high intake of protein-rich diets. Sex and protein:carbohydrate (P:C) ratios in diets were the primary factors influencing the gut bacterial community, but most of the microbial operational taxonomic units (OTUs) that were significantly different between males and females were present in low abundance. In contrast, protein intake had a greater influence than carbohydrate consumption on the relative abundances of the core bacterial taxa, as an increase in dietary protein availability could remove the growth constraint imposed by limited nitrogen. Taken together, the use of the Geometric Framework provides a deeper insight into how nutritional intakes influence the relative abundances of gut microbes, and could be a useful tool to integrate the study of gut microbiome and fitness traits in a host.]]> Mon 05 Dec 2022 14:49:21 AEDT ]]> https://ogma.newcastle.edu.au/vital/access/ /manager/Repository/uon:40029 n= 10) were recruited with the aim of deriving a standard GlucoTRIG value for a reference meal. Volunteers consumed the reference meal (2 regular slices of wholemeal bread; 250 mL chocolate flavoured milk; 7 g butter and 11 g peanut butter) comprising of carbohydrate, fat and protein (41, 40 and 16% energy respectively) on three different occasions with a minimum washout period of 3 days. The GlucoTRIG value was determined as the difference between the product of insulin and triglyceride obtained from venous blood samples at baseline and the product of insulin and triglyceride at 180 min. Results: There were no significant differences in the participants’ dietary intakes and their metabolic parameters between three visits (P> 0.005). The GlucoTRIG value obtained from three mean values of the reference meal was found to be 19 ± 3.5. There were no significant (,i>P= 0.2303) differences observed between the GlucoTRIG values for the three visits. Conclusion: GlucoTRIG, consisting of both glycaemic and lipaemic responses, may be a physiologically relevant tool to rank foods and meals for reducing the risk of metabolic diseases. Trial registration: ACTRN12619000973112.]]> Fri 15 Jul 2022 10:11:17 AEST ]]>