.... We explored the effects of dietary macronutrient composition on disease pathology and feeding behavior of canaries ( Serinus canaria domestica ) infected with Mycoplasma gallisepticum (MG). In the first experiment, we provided canaries with isocaloric diets composed of identical ingredients...

...Myung Suk Rho; Kwang Pum Lee ABSTRACT Animals must acquire an ideal amount and balance of macronutrients to optimize their performance, health and fitness. The nutritional landscape provides an integrative framework for analysing how animal phenotypes are associated with multiple nutritional...

... would give us insight into the extent to which nutritional conditions early in life modulate adult physiology and fitness. Here, we manipulated the ratio of macronutrients (yeast-to-sugar ratio, Y:S) in the larval diet of the holometabolous fruit fly Bactrocera tryoni . We investigated the effects...

... parasitism, and measured feeding before and after immune challenge on diets varying in their macronutrient content. To evaluate the effects of diet on melanization, we quantified melanization of beads following feeding assays. Contrary to our prediction, we found that parasitized or injected caterpillars...

... that flies prioritize macronutrient regulation over excess water consumption. To determine the relative importance of yeast and sucrose, in a no-choice experiment, we provided flies with two microcapillary tubes: the first with one of the 28 diets varying in yeast and sucrose content and the other with only...

..., retention and allocation. Where differences in nutrient utilization have been sought between specialists and generalists, results have been ambiguous( Scriber and Feeny, 1979 ; Futuyma and Wasserman,1981 ). caterpillar diet breadth feeding generalist Heliothis insect herbivore macronutrient...

...D. Raubenheimer; S. J. Simpson SUMMARY We examined correlates of nutrient balancing with dietary range by comparing diet selection and ingestive, post-ingestive and performance-related responses to macronutrient imbalance in two species of grasshopper. One of the two species, Locusta migratoria...