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141.
D. S. Pavlov N. N. Nemova P. I. Kirillov E. A. Kirillova Z. A. Nefedova O. B. Vasil’eva 《Journal of Ichthyology》2010,50(7):543-551
Juveniles of coho salmon Oncorhynchus kisutch and mykiss Parasalmo mykiss at the age 1 + (yearlings) are differentiated by the content of different fractions of lipids (the lipid status), feeding
habits, and by size-weight characteristics even eight months prior to smoltification. The juveniles of coho salmon and mykiss
with high lipid status consume more calorific food items and, as a rule, have higher (on average) body length and weight.
The juveniles with low lipid status consume less calorific organisms and have lower body length and weight. It is supposed
that a considerable part of juveniles with high lipid status will migrate seaward the next year. The role of feeding habits
in formation of this differentiation and, accordingly, in determination of timing of smoltification are discussed. 相似文献
142.
V P Nefedov V V Nefedova V S Kononykhina I I Morgulis 《Biulleten' eksperimental'no? biologii i meditsiny》1991,112(11):488-489
Haemopoietic stem cells content and proliferative activity were studied in the bone marrow of female F1 (CBA x C57Bl6) mice after single (50 mg/kg) and chronic (0.5 mg/kg daily for 7 days) serotonin (S) injections. It is shown that 9-day and 12-day COEs contents in the bone marrow of experimental mice has been increasing for 24 h after single S injection. After chronic S injections twofold increase of 12-day COEs is observed without any increasing of 9-day COEs. Total myelokaryocyte number is increased too. The study of proliferative status by in vitro incubation of bone marrow cells with ARA-C has shown that the numbers of 9-day and 12-day COEs in S-phase have increased both after single and chronic S injections. Possible mechanisms of stimulating effect of S on bone marrow stem cells are discussed. 相似文献