Document Detail

Nutritional regulation in nymphs of the German cockroach, Blattella germanica.
MedLine Citation:
PMID:  12770195     Owner:  NLM     Status:  Publisher    
Synthetic foods varying in protein-carbohydrate ratio and total nutrient concentration were used in food selection experiments to investigate the ingestive and post-ingestive regulation of macronutrients by male and female nymphs of the German cockroach, Blattella germanica (L.) (Dictyoptera: Blattellidae). For both nutrient imbalance and food dilution, food ingestion varied between treatments with the effect that nutrient ingestion was regulated. However, this mechanism was insufficient to compensate for some food dilution treatments. In those cases, the regulation of protein intake was prioritised over that of carbohydrate intake, and two additional regulatory responses were seen. Firstly, cellulose digestion supplemented shortfalls in dietary soluble carbohydrates, and secondly the feeding period within the stadium was prolonged. These ingestive, post-ingestive and developmental responses were orchestrated in such a way that, in all treatments, nutrient gain approached similar levels, despite the variation in food properties.
S A. Jones; D Raubenheimer
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Publication Detail:
Journal Detail:
Title:  Journal of insect physiology     Volume:  47     ISSN:  1879-1611     ISO Abbreviation:  J. Insect Physiol.     Publication Date:  2001 Sep 
Date Detail:
Created Date:  2003-May-28     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  2985080R     Medline TA:  J Insect Physiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  1169-1180     Citation Subset:  -    
Department of Zoology, Oxford University, South Parks Road, OX1 3PS, Oxford, UK
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