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diet
These results demonstrate the great importance of earthworms within the diet of pine marten and contribute to the knowledge of the pine marten's food ethology, since this kind of prey normally goes undetected in diet studies.
      
The apparently unpredictable behaviour of β-carotene in the supplementation of the diet of smokers is discussed in the light of the reactions of peroxyl radicals with β-carotene in the absence of oxygen.
      
The aim of the present study was to examine in detail food brought by reed warblers Acrocephalus scirpaceus to their nests to better understand the importance of hoverflies in the diet of small passerines.
      
This indicates that nestling diet analyses may provide not only information on avian foraging behaviour but also important faunistic data.
      
However, this number seriously underestimates the importance of hoverflies in the diet of reed warblers as hoverflies are one of the largest prey taken by warblers.
      
The presence of a parasitic cuckoo chick did not affect host foraging behaviour with respect to overall dominance of hoverflies in the diet (warbler 3.3%, cuckoo 3.8%).
      
Diet of the black-headed heron Ardea melanocephala during the breeding season in South African grasslands
      
The diet of the black-headed heron was studied using analysis of pellets and prey remnants (225 prey items identified) collected from four sites in South African Highveld Grassland, transformed into cultivated fields.
      
The diet was supplemented by small lizards, snakes, frogs and fishes.
      
Six weeks aged rats were adapted to standard housing conditions and light regimen L:D=12:12 h, fed standard laboratory diet and drank tap water (controls) or MEL solution ad libitum; finally they were sacrificed after overnight fasting.
      
Essential oils from oregano and thyme were mixed with commercial poultry diet, which was offered ad libitum to chicks in appertaining groups.
      
After cessation of EK13 (rifR) strain application, the rabbits in both groups were fed a standard diet for the next 2 weeks.
      
The amounts of C22:6 n-3 were higher in the liver (29.04 ± 0.06 - 27.41 ± 0.17%) and muscle (13.05 ± 0.40 - 11.37 ± 0.21%) of immature fish than in mature fish and depended on the composition of the diet.
      
Results of this study show that fatty acid composition in fish tissues can considerably vary, depending on the age of fish and their diet.
      
Thus more detailed studies are necessary on the influence of diet on immature and mature fish fatty acid composition.
      
The age and diet of fish consumed may also be important for human health.
      
New larval agar-based diet for laboratory rearing of Mediterranean fruit fly Ceratitis capitata (Diptera, Tephritidae)
      
To evaluate the quality of diet, pupal rearing efficacy and pupal weight were checked.
      
The best results were obtained with an agar based diet used for Manduca sexta laboratory rearing.
      
To simplify the preparation and to reduce the cost of this diet, a new formulation was developed.
      
 

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