Journal of Applied and Natural Science 4(1):85-86(2012)
Study on eggs of Japanese quail (Coturnix coturnix japonica) during incubation in the controlled laboratory conditions
R. A. Patil Bhagat1, S. B. Zade1* and P. N. Charde2
1Post Graduate Teaching Department of Zoology, RTM Nagpur University, Campus, Amravati Road, Nagpur – 440 033, INDIA 2Sevadal Mahila Mahavidyalaya and Research Academy, Sakkardara Square, Nagpur– 440 033, INDIA *Corresponding author. E-mail: email@example.com
Abstract : Study on newly laid eggs of Japanese quail Coturnix coturnix japonica was undertaken for a period of 18 days on incubation in controlled laboratory conditions. The aim of the study was to evaluate the changes in egg weight, shell weight, yolk weight and embryo weight throughout the period of incubation. It had been found that as the embryo grows, the egg weight slowly goes down while embryo weight goes on increasing day by day. The study inferred that the shift or reduction in weight of egg is attributable to the progressive growth of embryo which utilizes its yolk contents for its growth. Apart from this, the shell weight also reduced from first day to last day in order to facilitate hatching of the embryo.
Keywords : Coturnix coturnix japonica, Eggs, Incubation, Japanese quail, Shell weight