| The study from2012April to August, in Qinhuangdao wild zoo (study A), in Xuzhou Garden (study B), Xuzhou Suining Jinqiao rare farms (study C) using instantaneous and scan sampling observered Whooper Swans’reproductive period diurnal behavior, while the use of Logistic model to describe the nestling growth index. Objective to establish captive whooper swan into more detailed body spectrum, differential analysis of male and female swan breeding season diurnal behavior and discuss the Swan nestling growth rule, fitting growth curve and regression equation.The results as followed:the study of A in the different stages of breeding period, there is a big difference in the male and female Swan field, in the interim, early and late field using showed significant difference (P<0.01). Hatching by female Swan alone, while the male mainly surface areas of a warning; study of B in male and female reproductive period whooper swan the existence very big difference, in the interim, water and land on the early and late field there are obvious differences between male and female reproductive stage, the swan in the water the difference was significant (P<0.05), other areas of use were significantly different (P<0.01); there is a big difference in utilization of C male and female Swan field, three periods of feeding area had no significant difference, middle breeding field use is not significant, middle breeding on the surface of the field with significant difference (P<0.05), the other showed a very significant difference (P<0.01).Time the Swan field activities of the three regions shown regularity and some volatility in1days, from the overall trend in the female swan in a certain period of time have a certain peak, trough. Feeding area activities are concentrated in the peak in the evening, low peak in the morning. Nest area activity mainly in the afternoon, low peak is mainly concentrated in the morning and evening, complementary and feeding area and surface activity, surface activity and tourists activity (P<0.05) time tourists peak are respectively10:00-11:00and13:00-14:00. This time the water activity reached a peak of activity field, field activities in contrast, had the lowest peak.The Whooper Swan artificial brooding is a key link of captive breeding success, each growth index of nestling growth was S, with the Logistic equation. The Swan nestling weight regression equation:y=7455/(1+15.73e-0.001x), where x is the nestling weight (g), y day-old chicks (d). The average body length is longer for hatching (275±7.2) mm, after slow growth, to30days of age body length has amounted to806±20.6mm; then the growth rate is gradually increased, to90days of age the average body length was1100±32.5mm; nestling tail length growth relative length growth slow, hatching was35±3.2mm, along with the age growth, the growth rate has gradually accelerated, from the daily average growth of first weeks2.46±0.2mm increased to90day-age was3.61±0.32mm,60±8.52mm, then growth rate reached smoothly; growth curve of nestling mouth peak is relatively small; tarsometatarsal hatching when the length of30.4±2.6mm, then slow growth,80-90-age time all growth decline, only0.06±0.01mm; middle toes began to grow rapidly in the early period of the nestlings, to75day-age of age were growth to achieve the maximum amount of time.In addition, the Swan external signs of growth appears certain rules, follow the important function of the principle of priority development. Middle toe is and swimming related organs, the earliest developed; while the culmen, tarsometatarsal and other mining inflection point food movement organs appeared in the early stage of growth and development. |
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