There are several possibilities how this may occur; for example, feeding differences may result in differential ingestion of the parasiticide by the hosts and different exposure levels to lice (Igboeli et al. 2014).
First, we focussed on parameters of the intestine which may reflect some feeding differences between the two forms.
This media were used in an initial bioassay – the first of its kind for Diorhabda and Tamarix – to determine whether there were feeding differences among hybrid plants.
It is possible that some of these changes in gene expression are indirect or compensatory, as a result of feeding differences or the changes in body composition.
To quantify the feeding differences among herbivore treatments in relation to volatile emission, we calculated the number of damaged leaves and number of lesions as observed in each treatment.
Concerning current feeding practice, only 4% of controls and 2% of cases were breast fed and differences regarding formula feeding are probably explained by the age difference (at enrolment) between cases and controls.
Even from babyhood, mothers recalled striking feeding differences (Box 1,B).
If the feeding differences are caused by developmental differences, not familiarity discrimination, an exposure to particular bacteria during adulthood is not expected to cause an increased feeding response to the bacteria.
Similarly, among jurisdictions that do require formal safety assessment of GM food and feed, differences exist between those that have concluded that WF toxicity studies are not scientifically justified, such as Australia, and those that have concluded they provide useful information for safety assessment, such as Europe.
In Switzerland, France and Great Britain it was difficult to distinguish effects due to feed processing differences from those arising from differences in feeding practices between mixed farms and farms with only ruminants, because typically feed producers with mixed production lines and mixed farms were spatially correlated.
