Frequency of honeydew excretion in the lac insect, Kerria lacca (Kerr) (Homoptera: Tachardiidae)

1968 ◽  
Vol 46 (3) ◽  
pp. 600-601 ◽  
Author(s):  
P. N. Srivastava ◽  
R. K. Varshney
Keyword(s):  
Adult Female ◽  
Adult Stage ◽  
Physiological Activity ◽  
Adult Life ◽  
Fold Increase ◽  
Kerria Lacca ◽  
Honeydew Excretion ◽  
Lac Insect

The frequency of honeydew excretion in the larva of the lac insect, Kerria lacca (Kerr), varies from 2.08 to 3.30 droplets, and that in the fertilized adult female from 8.04 to 10.10 droplets per insect per hour. Approximately three- to- five-fold increase in the frequency of excretion from the larval to the adult stage is an indication of the vigorous physiological activity during the adult life of the insect.

Total glycogen during development of Kerria lacca (Kerr.) (Homoptera: Coccoidea)

1975 ◽  
Vol 53 (3) ◽  
pp. 290-292
Author(s):  
M. S. Haque
Keyword(s):  
Glycogen Content ◽  
Adult Stage ◽  
Pupal Stage ◽  
Kerria Lacca ◽  
Low Level ◽  
Lac Insect

Glycogen is present in the newly emerged larva of Kerria lacca (Kerr.). In the male lac insect the quantity of glycogen reaches a maximum in the early pupal stage and then declines sharply to a low level in the adult. In the female lac insect the total glycogen content increases regularly up to the adult stage.

Adult female domesticated canaries can modify their song preferences

1997 ◽  
Vol 75 (8) ◽  
pp. 1346-1350 ◽  
Author(s):  
L. Nagle ◽  
M. L. Kreutzer
Keyword(s):  
Adult Female ◽  
Early Life ◽  
Adult Life ◽  
Young Female ◽  
Breeding Period ◽  
Serinus Canaria ◽  
Sexual Imprinting ◽  
Song Preferences

Previous research has shown that acoustic experiences in early life influence song preferences in female domesticated canaries, Serinus canaria. We do not know, however, if they can modify song preferences in adulthood. In the experiments reported here, one group of young female domesticated canaries was reared in acoustic isolation in early life without song tutoring, while two groups were tutored with a playback song (one with wild canary song and one with domesticated canary song). We tested these three groups of females once they had reached adulthood, prior to breeding, using copulation-solicitation displays as an index of their song preferences. The females were then placed in an aviary with males during the breeding period, after which they were retested. We observed that the song preferences of females reared in acoustic isolation and those tutored with wild canary song had changed. These females were able to develop new song preferences in adult life. These results are discussed in relation to current views on song preferences and sexual imprinting.

Effects of Early Adult X-Irradiation upon Emotional Display in the Aged Female Beagle: A Negative Finding

1964 ◽  
Vol 15 (3) ◽  
pp. 927-930 ◽  
Author(s):  
Andrew K. Solarz
Keyword(s):  
Adult Female ◽  
Adult Life ◽  
Control Groups ◽  
Negative Finding ◽  
Emotional Display ◽  
X Irradiation ◽  
And Control

250 adult female beagles were tested for emotional display late in adult life after having been exposed or sham exposed to X-irradiation at 10 to 12 mo. of age. The control dogs were interspersed in pens among experimentals. Emotional display was stimulated by the presentation of a person relatively strange to the kennel area. The dogs' responses were classified as “friendly,” “wary,” “aggressive” or “staying.” No significant differences were obtained in the comparison of experimental and control groups in regard to frequency of dogs falling within each of the behavioral categories.

Secretin effect on gastrin, gastric secretion in dogs with chronic antral stimulation

1975 ◽  
Vol 228 (6) ◽  
pp. 1775-1781 ◽  
Author(s):  
S Nasca ◽  
M Mignon ◽  
L Gramatica ◽  
J-P Accary ◽  
S Bonfils
Keyword(s):  
Gastric Secretion ◽  
Acid Output ◽  
Physiological Activity ◽  
Fold Increase ◽  
Acid Inhibition ◽  
Plasma Gastrin ◽  
Heidenhain Pouch ◽  
Fasting Plasma

Antrocolic transposition in four dogs with Heidenhain pouch and gastrojejunostomyresulted in a marked increase in fasting plasma gastrin concentration and sustained highacid secretion, closely related to gastrin levels. A marked production of pepsin output could not be correlated with plasma gastrin. Reduction in plasma gastrin concentration was more than twofold less pronounced than the reduction in acid output for 1 and 2 U/kg-h, while the 0.5 U/kg-h no effect was noted. For both acid output and gastrin concentrations, close correlations were noted between presecretion level and remaining level upon secretin infusion. Despite the reduction in the secretory volume of the pouch, 0.5 and 1 U/kg-h of secretin induced a 1.5- and 2-fold increase in pepsin output, respectively. Two untis per kilagram-hour decreased the secretory volume as well as the pepsin output. If the physiological release of secretin in dogs does not exceed the equivalent of the lowest dose studied, our results would indicate that acid inhibition is a physiological activity of secretin, while the effect on circulating gastrin concentration seems to be phamacological.

scholarly journals Erratum to: Effect of Broodlac Treatment with Insecticides on Population Reduction of Predators and Parasitoids of Lac Insect, Kerria lacca (Kerr)

2013 ◽  
Vol 36 (5) ◽  
pp. 569-569
Author(s):  
Jai Prakash Singh ◽  
Anil Kumar Jaiswal ◽  
Mohammad Monobrullah ◽  
P. Patamajhi
Keyword(s):  
Kerria Lacca ◽  
Population Reduction ◽  
Lac Insect

scholarly journals Arrested B Lymphopoiesis and Persistence of Activated B Cells in Adult Interleukin 7−/− Mice

2001 ◽  
Vol 194 (8) ◽  
pp. 1141-1150 ◽  
Author(s):  
Thiago L. Carvalho ◽  
Tomaz Mota-Santos ◽  
Ana Cumano ◽  
Jocelyne Demengeot ◽  
Paulo Vieira
Keyword(s):  
T Cell ◽  
B Lymphocytes ◽  
Early Life ◽  
B Lymphocyte ◽  
Marginal Zone ◽  
Adult Life ◽  
Fold Increase ◽  
B Lymphopoiesis ◽  
Interleukin 7 ◽  
B1 Cells

Interleukin 7 is a crucial factor for the development of murine T and B lymphocytes. We now report that, in the absence of interleukin 7, B lymphocyte production takes place exclusively during fetal and perinatal life, ceasing after 7 wk of age. In peripheral organs, however, the pool of B lymphocytes is stable throughout adult life and consists only of cells that belong to the B1 and marginal zone (MZ) compartments. This is accompanied by a 50-fold increase in the frequency of immunoglobulin (Ig)M- and IgG-secreting cells, and the concentration of serum immunoglobulins is increased three- to fivefold. Both the MZ phenotype and the increase in serum IgM are T cell independent. These findings reveal a previously undescribed pathway of B lymphopoiesis that is active in early life and is interleukin 7 independent. This pathway generates B1 cells and a normal sized MZ B lymphocyte compartment.

Indian lac insect,Kerria lacca, as an important source of honeydew

Bee World ◽  
1999 ◽  
Vol 80 (3) ◽  
pp. 115-118 ◽  
Author(s):  
K Krishan Sharma ◽  
A Bhattacharya ◽  
S N Sushil
Keyword(s):  
Kerria Lacca ◽  
Lac Insect

Laboratory adaptation ofBactrocera tryoni(Diptera: Tephritidae) decreases mating age and increases protein consumption and number of eggs produced per milligram of protein

2004 ◽  
Vol 94 (6) ◽  
pp. 517-524 ◽  
Author(s):  
A. Meats ◽  
H.M. Holmes ◽  
G.L. Kelly
Keyword(s):  
Dietary Protein ◽  
Egg Size ◽  
Adult Life ◽  
Fold Increase ◽  
Dry Weight ◽  
Egg Load ◽  
Fresh Weight ◽  
Bactrocera Tryoni ◽  
Laboratory Adaptation

AbstractA significant reduction in age of mating occurred during the first four generations (G1–G4) of laboratory adaptation of wildBactrocera tryoni(Froggatt) and this was associated with the earlier attainment of peak egg load although no significant differences were detected in the peak egg load itself. A long term laboratory (LTL) strain had a significantly earlier mating age and higher peak egg load than flies of wild origin or those from the first four laboratory generations. The amount of protein consumed by females in the first week of adult life was significantly higher in the LTL strain than in flies of wild origin or G1–G4 but there were no significant changes (or only slight changes) with laboratory adaptation in the amounts of protein consumed up to the ages of mating and peak egg load. Laboratory adaptation resulted in no significant changes in egg size, egg dry weight, puparial fresh weight and the dry weight of newly emerged females. The large increase in fecundity with laboratory adaptation is associated with a 4- to 5-fold increase in the rate of conversion of dietary protein to eggs (i.e. eggs produced per mg of protein consumed).

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