Ten layingeggyangzhougooses were sacrificed to obtain their follicles, from which granulosa cells were collected. After the granulosa cells were separated, they were fixed by 70% ethanol, and the apoptotic cell death was evaluated by flow cytometry. Meanwhile, the plasma samples were collected to evaluate the level of FSH,LH and E2 by RIA methods. The relationships between hormone contents and cell apoptosis rate were calculated. The results showed that: （1）Whether the follicle was healthy or atresic, the percentage of G1 phase of granulose cells was more than 90%, about 2%-6% granulosa cells were in G2 phase, and the percentage of S phase was the lowest; (2) The apoptosis rate of granulosa cells of atresia follicles was extremely significant higher than that of healthy follicles（P<0.01）; (3) With the incensement of follicular diameter, the apoptosis rate of healthy follicles decreased correspondingly; (4) The level of FSH,E2 of healthy group were higher than that of apoptotic group, while the level of LH was on the other hand.

Two hundred and forty 1dayold Arbor Acres healthy broiler chickens were used to conduct feeding and comparative slaughter experiments for 42 days. Body weights and corresponding body compositions of chicks were measured at weekly intervals. Gompertz equation was adopted for modeling the growth cure of sexes. Correlations between the weights of carcass protein, feather protein and live body weight of birds at various times were described with different mathematic equations, respectively. The corresponding optimal models screened out were combined with growth curve equations, separately. Differential functions reflected relationships of body gain, carcass protein gain, feather protein gain change with age were established, which imply accurately the laws of growth and protein deposition in broiler chickens.