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2005 in Heilongjiang clear water Merganser Reserve on rescue reared Merganser from hatching to 30 weeks of age, body weight, body length, wing length, tail length, bill length changes were measured and analyzed. The results showed that: (1) Chinese merganser early fast growth, with increasing age, the growth rate of decline in the relative growth of which the first four weeks maximum value of 118.5%, the absolute growth of 82g, the first 8 weeks maximum value of absolute growth 354.4g, the growth rate was 62.6%, to 13 weeks weight stable, basically stopped growing reach maturity, body weight and body length, beak length, tail length, wing length correlations were 0.967,0.966,0.949,0.943. (2) Based on Logistic model for nonlinear regression analysis, the use of iterative analysis to establish Chinese merganser weight nonlinear regression equation: y i = 129257 (1 e 4.052-0.655t i ) (R 2 = 0.992). (3) Main body weight and four feet regression analysis Merganser body weight and body size indexes optimal regression equation Z =-926.810-7.466W 36.931T-11.38C 214.843H (R 2 < / sup> = 0.941). (Z: Weight W: tail length T: body length C: wing length H: beak length) March 2007 - March 2008, in Heilongjiang clear water Merganser Reserve, supplemented by field observations and automatic camera instrument monitoring, using instantaneous scan sampling (Instantaneous and Scanning Sampling), focal animal sampling (Focus Sampling) and all events sampling (All Occurrences Sampling) for six subadult (3 males, 3 females) were observed record. The results showed that: (1) Chinese merganser's main activities include rest, preening, feeding, female fight, guard, play and pseudo-copulation. Rest is China where the main activity merganser, followed by preening behavior, feeding behavior time allocated no significant difference in the proportion of the four seasons, the longest play behavior in the summer, in the spring shortest time. Vigilance behavior occurs most frequently in the winter, the other three seasons no significant difference in the proportion. Contention female pseudo-copulation behavior and the percentage of time the highest percentage in the fall. (2) in spring, summer and winter, autumn significant differences in behavior between the rest. Spring and summer break behavior for a long time, autumn and winter short time behavior; between autumn and winter, spring and summer, between autumn and summer time allocation between preening behavior was no significant difference. Between spring and winter, summer and winter time allocation between preening significant difference. Winter preening behavior longest, while the shortest summer: feeding behavior between the time allocated for each season were no significant differences, fall, spring feeding activity longer, winter, summer time is shorter; vigilance behavior time allocated the highest percentage in the winter, summer, autumn lowest percentage, each season allocation of time between vigilance behavior were not significantly different; longest play behavior in the summer, in the spring shortest guard between each season allocation of time no significant difference; Chinese merganser fight estrogen activity in all the activities of pseudo-copulation lowest frequency appear only in the higher frequency in the autumn, and the percentage of active time in four seasons were not significantly different. (3) Merganser at each time period showed seasonal variations in activity patterns: Closed peak appeared in the four seasons are not the same; preening its peak in the spring, summer and winter, there is a clear peak, each season also appeared in a or two peaks; playing peaked in the spring and summer is basically the same playing time has been extended in the summer. Autumn, winter peak appeared basically the same; feeding peak in the autumn, summer and winter appeared basically the same; alert emergence of the peak time at the Four Seasons is basically the same, only the percentage of vigilance behavior in winter was significantly higher than the other three seasons; observing its inner spring and summer fight female and pseudo-copulation no representation, in the fall, fight the emergence of female mating peaks and the same and fight the Battle of female behavior significantly.
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