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  • 1
    Electronic Resource
    Electronic Resource
    Effect of carbohydrate on age-related feeding behaviors and longevity in adult black cutworm,Agrotis ipsilon (Lepidoptera: Noctuidae) (1996)
    Springer
    Journal of insect behavior 9 (1996), S. 215-222 
    Details
    ISSN: 1572-8889
    Keywords: Insecta ; age-related behavior ; sugar feeding ; carbohydrate ; sucrose ; aging ; Agrotis ipsilon
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Abstract Age-related consumption and longevity were monitored in the laboratory for adultA. ipsilon fed either a 1M sucrose solution or water. An additional group was completely starved. Adults consumed sucrose solution and water just after eclosion; the percentage feeding daily and the mean daily consumption for females and males fed sucrose solution declined with time, whereas the percentage feeding daily and the mean daily consumption of those fed water increased with time. Total consumption was significantly higher for those fed sucrose solution (P〈0.01) because they lived longer, but consumption per day averaged over the entire adult stage was not significantly different between those fed sucrose solution and those fed water (P〉0.05). Mean longevity was significantly extended for females and males fed sucrose solution over those fed water or starved (P〈0.01). Moreover, consumption of either fluid was significantly correlated with extended longevity in all groups (P〈0.05). These data on fluid consumption by adultA. ipsilon are discussed relative to posteclosion migratory activities.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02213866
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  • 2
    Electronic Resource
    Electronic Resource
    Effects of prococene II on the nutritional physiology of last instar Heliothis zea larvae (1992)
    New York, NY [u.a.] : Wiley-Blackwell
    Archives of Insect Biochemistry and Physiology 19 (1992), S. 237-246 
    Details
    ISSN: 0739-4462
    Keywords: approximate digestibility ; assimilation ; corn earworm ; excretion ; food consumption ; growth rate ; midgut ; noctuidae ; Chemistry ; Food Science, Agricultural, Medicinal and Pharmaceutical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology
    Notes: When precocene II was fed to last instar larvae of Heliothis zea, it caused significant reductions in the calculated rate of growth, rate of nutrient assimilation, and conversion of ingested and digested food to body mass. No change in the rate of food consumption occurred but respiration was significantly higher. Transport of the nutrient [1-14C] linoleic acid across midgut tissue was hindered when larvae were fed precocence II. There was also a precocene-induced change in the apical (luminal) morphology of midgut cells, including absence of the glycocalyx and loss of the microvillar absorptive surface. The influence of precocene II on the midgut physiology and metabolic processes in last instar larvae of H. zea may account for the observed reduced growth and delayed development. © 1992 wiley-Liss, Inc.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/arch.940190403
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    Paper (German National Licenses)
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