Thus, the dose effect function concerning feeding is similar to the one for choice in the sense that both sugars lose their appetitive effect at high concentration; maybe surprisingly, both fructose and sucrose even suppress feeding at these concentrations.
Both sugars lead to increases in feeding, relative to the baseline condition with no sugar added, at low but to suppression of feeding at higher concentrations.
This stays in contrast to the results of several studies on higher vertebrates which showed effects on immune parameters, antioxidative enzymes, and growth parameters due to ZEN feeding at dietary concentrations ranging from 2 mg per kg to up to 800 mg per kg [ 12– 15, 35, 36].
All dogs in the current study received a diet containing of 860 mg choline per 1000 kcal metabolisable energy and, fed at this concentration, intake might be less than NRC recommended allowance.
Monovalent salt rejection was investigated using sodium chloride feed at concentrations from 3.4 mM to 100 mM and at pH values of 7 and 10.
When operating with ethane in the feed at concentrations found in natural ethylene, the fluidised-bed reactor converted the ethane with good selectivity to ethylene, a key result in the context of using oxidative coupling for natural gas conversion.
In a conventional batch reactor, the substrate is either added at the beginning or, to prevent catalyst inactivation, fed at a low concentration to the reactor.
Lasiocarpine, a pyrrolizidine alkaloid, was fed at a dietary concentration of 50/10 6) for 55 weeks, to 20 male F-344 rats.
The appetite-suppressing effect of SB-399885 was investigated in the rat in a paradigm of acute feeding behaviour at concentrations that do not influence exploratory behaviour, depression/anxiety or wakefulness [14,15].
Artemisinin, an extract isolated from Artemisia annua, is effective in reducing oocyst shedding output from E. acervulina and E. tenella but not E. maxima infections when broiler chickens are fed the extract at concentrations of 1 or 2.5 mg/kg.
