[The content of DNA, RNA and wet weight and the RNA:DNA and wet weight:DNA ratio in different tissues during the growth of chickens. 1. Analysis of the brain, the myocardium, the lungs and the liver].
At each 8 chickens of the race "white leghorn" analyses of the body weight as well of the wet weight and the concentration of DNA and of RNA in different tissues from the 2nd to the 203rd day after hatching were performed. On the 2nd day after hatching the DNA-concentration in the brain amounted to 1.50 +/- 0.12, in the heart-muscle to 2.86 +/- 0.19, in the lung to 7.23 +/- 0.19 and in the liver to 2.86 +/- 0.20 mg/g wet weight. The highest content of nuclei in the brain of 1.38 x 10(9) was estimated on the 56th, in the heart-muscle of 1.94 x 10(9) on the 168th day, in the lung of 16.86 x 10(9) on the 112th day and in the liver of 69.81 x 10(9) on the 203rd day. Further the RNA:DNA- and the wet weight:DNA-ratio of the different tissues was calculated.
Kolb
E
E
Veterinär-Physiologisch-Chemischen Institut, Universität Leipzig.
Forner
C
C
Taubert
U
U
D000818:Animals; D001835:Body Weight; D001921:Brain / Q000254:growth & development; D002645:Chickens / Q000254:growth & development*; D004247:DNA / Q000032:analysis*; D005260:Female; D006321:Heart / Q000254:growth & development; D008099:Liver / Q000254:growth & development; D008168:Lung / Q000254:growth & development; D008297:Male; D012313:RNA / Q000032:analysis*
D012313:RNA; D004247:DNA