Post-embryonic development of chicks of the Japanese quail under conditions of the limited volume.
According to our results, chicks of the Japanese quail can survive within the first 10 days of a life under conditions of the limited volume when their mobility is completely limited. However, their development was impaired in comparison with chicks housed in the common cages. Besides, the delay in development of chick's plumage has been observed. The analysis of body mass in test groups has shown that practically all chicks were smaller than chicks from control group. It is the result of feed consumption decrease (about 30% from control group) caused by the restriction of mobility of chicks. But after their transferring to the common cages at the end of the experiment, body mass in test group rapidly reached the level of body mass in control group. Research has shown that percent of alive of quail chicks maintained in the chamber of animals of complex "Incubator-2", was higher than in first two experiments. Therefore, works on improvement of devices for the maintenance of quail chicks continue, and also new adaptations develop for the maintenance of chicks in their early post-embryonic period (till 10 days) with reference to conditions of weightlessness.
Khekhneva
A V
AV
SSC-IMBP RAS, Moscow, Russia. vsychev@imbp.ru
Gurieva
T S
TS
Dadasheva
O A
OA
D000818:Animals; D001522:Behavior, Animal; D001835:Body Weight; D003370:Coturnix / Q000254:growth & development*; D004435:Eating; D005069:Evaluation Studies as Topic; D005247:Feeding Behavior; D005508:Food Deprivation; D006799:Housing, Animal; D009043:Motor Activity; D012149:Restraint, Physical; D013026:Space Flight / Q000295:instrumentation