EFFECT OF DIETARY SERINE ON SURVIVAL AND RATE OF DEVELOPMENT OF ORYZAEPHILUS SURINAMENSIS (COLEOPTERA: SILVANIDAE)

1969 ◽  
Vol 101 (1) ◽  
pp. 27-31 ◽  
Author(s):  
G. R. F. Davis
Keyword(s):  
Relative Humidity ◽  
Oryzaephilus Surinamensis ◽  
Rate Of Development ◽  
Serine Biosynthesis

AbstractNewly hatched Oryzaephilus surinamensis (L.) were reared on a chemically-defined diet at 32 ± 2 °C and 75 ± 5% relative humidity. Addition of serine to the diet containing glycine was not beneficial to the insect and became harmful at a concentration greater than 10.0 mg/g. Serine was able to replace glycine almost completely in the glycine-free diet for this insect. The results suggest that glycine, but not alanine or threonine, is the precursor for serine biosynthesis in O. surinamensis. They also suggest that serine and glycine are not completely interconvertible by this organism.

Quantitative dietary requirements of Oryzaephilus surinamensis (L.) (Coleoptera: Silvanidae) for phenylalanine and tyrosine

1968 ◽  
Vol 46 (3) ◽  
pp. 469-473 ◽  
Author(s):  
G. R. F. Davis
Keyword(s):  
Relative Humidity ◽  
Normal Rate ◽  
Oryzaephilus Surinamensis ◽  
Adult Weight ◽  
Rate Of Development ◽  
Dietary Requirements ◽  
Emergent Adults

Oryzaephilus surinamensis (L.), reared on three holidic diets at 32 ± 2 °C and 75 ± 5% relative humidity, required a dietary source of phenylalanine, irreplaceable by dietary tyrosine. This insect also required a dietary source of tyrosine for normal rate of development. On diets containing 1.0 mg of phenylalanine per gram, it used supplementary glycine more effectively than supplementary tyrosine as a replacement for phenylalanine omitted from the diet. On diets containing 1.0 mg of tyrosine per gram, it used supplementary phenylalanine more effectively than glycine. Emergent adults weighed less with 1.0 mg of dietary phenylalanine per gram than with higher concentrations. Adult weight was unaffected by decreasing concentrations of dietary tyrosine.

scholarly journals The mortality of Oryzaephilus surinamensis Linnaeus, 1758 (Coleoptera: Silvanidae) induced by powdered plants

2015 ◽  
Vol 55 (1) ◽  
pp. 110-116 ◽  
Author(s):  
Małgorzata Kłyś ◽  
Anna Przystupińska
Keyword(s):  
Mortality Rate ◽  
Relative Humidity ◽  
Allium Sativum ◽  
Salvia Officinalis ◽  
Mentha Piperita ◽  
Oryzaephilus Surinamensis ◽  
Artemisia Absinthium ◽  
Pimenta Dioica ◽  
Salvia Officinalis L ◽  
Significant Mortality

Abstract The aim of this study was to investigate whether powdered plants of different species namely: peppermint Mentha piperita (L.) (Lamiaceae), wormwood Artemisia absinthium (L.) (Asteraceae), common sage Salvia officinalis (L.) (Lamiaceae), allspice Pimenta dioica (Linnaeus et Merrill) (Myrtaceae) and common garlic Allium sativum (L.) (Amaryllidaceae), added to semolina using concentrations of 1.23, 3.61, and 5.88%, influence the mortality rate in the saw-toothed grain beetle Oryzaephilus surinamensis Linnaeus, 1758 (Coleoptera: Silvanidae). Experiments were conducted in a laboratory at 28°C and relative humidity 60±5%. At the concentration of 1.23%, allspice seeds caused the highest mortality amongst the saw-toothed grain beetle. When concentrations of 3.61 and 5.88% were used, sage, peppermint and wormwood caused the highest statistically significant mortality of O. surinamensis

scholarly journals Developmental Stages of Hypopygiopsis violacea (Family: Calliphoridae), a Forensically Important Blowfly on Rat Carcass

1970 ◽  
Vol 5 (1) ◽  
pp. 26-33
Author(s):  
Mohd Zacaery Khalik ◽  
Adibah Mohamed Shariff ◽  
Wan Nurainie Wan Ismail
Keyword(s):  
Life Cycle ◽  
Relative Humidity ◽  
Small Mammal ◽  
Larval Stage ◽  
Developmental Stages ◽  
Time Of Death ◽  
Host Animal ◽  
Developmental Duration ◽  
Rate Of Development ◽  
Decomposition Stages

A study on blowfly developmental stages to estimate the time of death (TOD) of small mammal had been conducted during a rainy season. During this study, fresh Muller’s rat (Sundamys muelleri) carcasses were used as the host sample, and the developmental duration of every larval stage, decomposition stages of host animal, ambient temperature and relative humidity were recorded. Hypopygiopsis violacea (Family: Calliphoridae) was recorded to be the first blowfly visiting and ovipositing on the carcass after the carcass being deposited, while Chrysomya megacephala and C. ruffacies were recorded as the most dominant calliphorids present during the decomposition process. This study estimated that the time for calliphorids to complete their life cycle, from an egg to an adult was approximately twenty-three days, and the decomposition of Sundamys muelleri took about nine days. Useful information on succession and rate of development of blowfly could enhance the knowledge of the length of time elapsed since death in particular host animal.

Phase Variation and Rate of Development in the Algerian Race of the Migratory Locust (Locusta migratoria, L.)

1936 ◽  
Vol 27 (1) ◽  
pp. 87-90 ◽  
Author(s):  
B. P. Uvarov ◽  
A. G. Hamilton
Keyword(s):  
Relative Humidity ◽  
Sexual Maturation ◽  
Locusta Migratoria ◽  
Phase Variation ◽  
Final Decision ◽  
Migratory Locust ◽  
Rate Of Development ◽  
Relationship Of

1. The Algerian race of Locusta migratoria, L., although never known to occur in the gregarious phase in nature can be transformed into almost typical ph. gregaria by breeding in crowded cages.2. Biometric characters of such individuals indicate a relationship of the Algerian race to the subsp. migratoria, but the data are insufficient for a final decision on this point.3. The rate of embryonic and hopper development in the Algerian race is the same as in the tropical African subsp. migratorioides when bred at the same temperature and relative humidity.4. The rate of sexual maturation is very much slower in the Algerian race than in the tropical one bred under the same conditions.

Absorption of Water by the Egg of the Garden Chafer, Phyllopertha Horticola L

1957 ◽  
Vol 34 (2) ◽  
pp. 226-236
Author(s):  
ROGER LAUGHLIN
Keyword(s):  
Relative Humidity ◽  
Osmotic Pressure ◽  
Incubation Period ◽  
Water Uptake ◽  
Rate Of Development ◽  
Early Stages ◽  
Rapid Absorption ◽  
Sucrose Solutions ◽  
Phyllopertha Horticola

1. The garden chafer egg absorbs nearly twice its own weight of water in the early stages of the incubation period. 2. The chorion is thin, uniform and elastic, and the surface is covered with granules. Several layers of epembryonic cuticle are added as the embryo develops. These layers are resorbed before hatching takes place. 3. The rate of development, the rate of water uptake and the length of the rapid absorption period are equally affected by temperature. 4. Eggs are most easily desiccated in the rapid absorption period. 5. The yolk of the new-laid egg has an osmotic pressure of about 13 atm. The extra-embryonic fluid of the swollen egg has an osmotic pressure of about 8 atm. 6. Eggs absorb little or no water from sucrose solutions with osmotic pressures of 15 atm. or over. 7. New-laid eggs cannot absorb water from air at 98% relative humidity. Swollen eggs placed in air of this humidity collapse and die.

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