The results of a study on the tolerance of 5dayold grass carp toward the sudden change (rise of fall), gradual change (rise or fall, at speed of about 3℃/h) and fallthenrise of water temperature showed that with the acclimation temperature (AT) being 22℃, its upper lethal temperatures caused by sudden and gradual rise of water temperature were 35.

Influence of three strains of drosophila melanogaster s age on sevoflurance ED_(50) and vitality;

Effect of male and female adult age on the mating success and male EAG response to sex pheromones of the legume pod borer, Maruca vitrata;

Effect of day age on PR-39 gene expression in femur marrow of piglets;

Determination of Amino acid in Taihe Silky fowl at Different Day-age;

Study of ECG on different day-ages of mandarin voles;

Effect of day-age of Jimpy mice on inducing BPH model;

Studies on pathogenicity of Newcastle disease virus to chickens of different day-old and different antibody level;

Interrelationship among daily age, body length, birth date and sampling loaction at recruitment of Anguilla japonica elvers in the Chinese coast;

Birth date and daily growth rate of body length of the larvae were estimated based on the daily age.

The differences in paramere and female abdominal apex among the 3 lacebugs are illustrated,and the 5~(th) instar nymphs of E.