Growth indicators including weight, body length, wings length, tail length, tarsus, gape, the third toe and head width of 21 nestlings of Great Bustard (Otis tarda) were measured and investigated in Harbin Zoo, Harbin...Growth indicators including weight, body length, wings length, tail length, tarsus, gape, the third toe and head width of 21 nestlings of Great Bustard (Otis tarda) were measured and investigated in Harbin Zoo, Harbin, China during 1999-2002, and methods on successfully fostering nestlings of the bird were also summarized in this article. The results showed: the Great Bustard is a kind of premature bird and its birth weight was 86.31?.56g (N=21); environmental temperature for the neonatal nestlings should be controlled at 36C; the feeding principle having many meals but little food at each for the nestlings should be followed; since six weeks after birth, nestlings of both gender began to show significant difference in body weight, the weight of male was 1.8 times of that of the female after fourteenth week, and by weight and body figure sexual identity could be easily discerned when 3 or 4 months old; There is no significant difference in growth and development of all organs between male and female nestlings and organ growth curves were fit into Logistic equation.展开更多
The key techniques of artificial incubation and brooding of Bonasa bonasia during breeding technology promotion was summed up in the paper.Electric incubation and dielectric incubation,electric brooding and dielectric...The key techniques of artificial incubation and brooding of Bonasa bonasia during breeding technology promotion was summed up in the paper.Electric incubation and dielectric incubation,electric brooding and dielectric brooding were compared with each other.The results showed that the effect of dielectric inoculation was poor,and there were no significant difference between electric brooding and dielectric brooding.展开更多
Bonasa bonasia eggs were artificially incubated.The results showed that the temperature of 37.5-38℃(slightly lower temperature in the late stage),the relative humidity of 55%-60%in the middle stage and 60%-70%in the ...Bonasa bonasia eggs were artificially incubated.The results showed that the temperature of 37.5-38℃(slightly lower temperature in the late stage),the relative humidity of 55%-60%in the middle stage and 60%-70%in the late stage were the most suitable conditions for incubation.展开更多
In order to investigate the effect of temperature on hatching result of fertilized peacock eggs, they were hatched under conditions of varying temperature and constant temperature respectively. The result shows that t...In order to investigate the effect of temperature on hatching result of fertilized peacock eggs, they were hatched under conditions of varying temperature and constant temperature respectively. The result shows that the hatching rate in the varying temperature treatment group （Group Ⅰ） is higher than that in the constant temperature treatment group （Group Ⅱ）. It suggests that the varying temperature treatment （high temperature in the early period, medium temperature in the middle period, slightly lower temperature in the late period, and slightly higher temperature in the hulling period） is in line with the optimum temperature variation in the hatching of fertilized peacock eggs, contributing the hatching of fertilized peacock eggs.展开更多
文摘Growth indicators including weight, body length, wings length, tail length, tarsus, gape, the third toe and head width of 21 nestlings of Great Bustard (Otis tarda) were measured and investigated in Harbin Zoo, Harbin, China during 1999-2002, and methods on successfully fostering nestlings of the bird were also summarized in this article. The results showed: the Great Bustard is a kind of premature bird and its birth weight was 86.31?.56g (N=21); environmental temperature for the neonatal nestlings should be controlled at 36C; the feeding principle having many meals but little food at each for the nestlings should be followed; since six weeks after birth, nestlings of both gender began to show significant difference in body weight, the weight of male was 1.8 times of that of the female after fourteenth week, and by weight and body figure sexual identity could be easily discerned when 3 or 4 months old; There is no significant difference in growth and development of all organs between male and female nestlings and organ growth curves were fit into Logistic equation.
文摘The key techniques of artificial incubation and brooding of Bonasa bonasia during breeding technology promotion was summed up in the paper.Electric incubation and dielectric incubation,electric brooding and dielectric brooding were compared with each other.The results showed that the effect of dielectric inoculation was poor,and there were no significant difference between electric brooding and dielectric brooding.
文摘Bonasa bonasia eggs were artificially incubated.The results showed that the temperature of 37.5-38℃(slightly lower temperature in the late stage),the relative humidity of 55%-60%in the middle stage and 60%-70%in the late stage were the most suitable conditions for incubation.
基金Supported by Scientific and Technological Development General Program of Beijing Municipal Education Commission(KM201412448004)~~
文摘In order to investigate the effect of temperature on hatching result of fertilized peacock eggs, they were hatched under conditions of varying temperature and constant temperature respectively. The result shows that the hatching rate in the varying temperature treatment group （Group Ⅰ） is higher than that in the constant temperature treatment group （Group Ⅱ）. It suggests that the varying temperature treatment （high temperature in the early period, medium temperature in the middle period, slightly lower temperature in the late period, and slightly higher temperature in the hulling period） is in line with the optimum temperature variation in the hatching of fertilized peacock eggs, contributing the hatching of fertilized peacock eggs.
