scholarly journals Genetic Basis of Packed Erythrocyte Volume in Japanese Quail

1973 ◽  
Vol 52 (4) ◽  
pp. 1606-1610
Author(s):  
Farid K.R. Stino ◽  
Kenneth W. Washburn
Genetics ◽  
1973 ◽  
Vol 74 (2) ◽  
pp. 363-369
Author(s):  
F K R Stino ◽  
K W Washburn

ABSTRACT Two-way selection for two-week packed erythrocyte volume (PCV) was practiced for four generations under two nutritional environments in the Japanese quail (Coturnix coturnix japonica). One environment was an iron, copper-"adequate" diet and the other was iron, copper-deficient "stress" diet. Response to selection was greater in both directions under the adequate environment than under the stress environment. After four generations of selection there were 29% and 18% differences between the high and low lines under the adequate and the stress environments, respectively. An asymmetry of response was observed toward the low line under the adequate environment and toward the high line under the stress environment. The realized heritability estimates for the high and low Fe-Cu-adequate lines were.26 and.35, respectively, while those for the high and low Fe-Cu-deficient lines were.16 and.06, respectively.


1972 ◽  
Vol 50 (1) ◽  
pp. 6-10 ◽  
Author(s):  
G. P. Nirmalan ◽  
G. A. Robinson

In a study carried out to assess the effect of age, sex, and egg laying on the true Mood volume in Japanese quail by the simultaneous determination of the 51Cr erythrocyte volume and the 125I plasma volume, the mean values in milliliters per kilogram body weight for true blood volume, plasma volume, and erythrocyte volume in young unsexed quail, adult males, adult nonlaying hens, and laying quail, respectively, were 83.2, 59.1, 24.1; 74.2, 47.3, 26.9; 67.6, 42.9, 24.7; and 71.2, 47.3, and 23.8. Young birds had higher plasma volume and true blood volume and lower whole body hematocrit and Fcells ratio than the adults. The erythrocyte volume of young quail was not significantly different from that of the nonlaying hens but was less than that of adult males. Adult males had higher plasma volume, erythrocyte volume, and true blood volume than nonlaying hens. A comparison between the layers and nonlayers showed that the layers had a higher plasma volume and Fcells ratio and a lower whole body hematocrit than the adult nonlayers.


Author(s):  
Anton Bózner ◽  
Mikuláš Gažo ◽  
Jozef Dostál

It is anticipated that Japanese quail /Coturnix coturnix japonica/ will provide animal proteins in long term space flights. Consequently this species of birds is of research interest of international space program INTERCOSMOS. In the year 1987 we reported on an experiment /2/ in which the effect of chronic acceleration of 2 G hypergravitation, the hypodynamy and the simultaneous effect of chronic acceleration and the location in the centre of the turntable of the centrifuge on the protein fractions in skeletal muscles was studied. The ultrastructure of the heart muscle was now in this experiments examined as well.Japanese quail cockerels, aged 48 days were exposed to 2 G hypergravitation /group IV/ in a 6,4 m diameter centrifuge, to hypodynamy /group III/ and their combination /group V/, respectively for 6 days / Fig.1/. The hypodynamy in group III was achieved by suspending the birds in jackets without contact the floor. The group II was located in the centre ofthe turntable of the centrifuge. The control group I. was kept under normal conditions. The quantitative ultrastructure of myocard was evaluated by the methods of Weibel/3/ - this enables to determine the number, relative size and volume of mitochondria volume of single mitochondria, defficiency of mitochondrial cristae and volume of myofibrils.


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