摘要:

Pyridoxine deficiency was induced in a population ofChanna punctatus.The deficiency effects were increased by adding 4‐deoxypyridoxine as an antagonist. Haematological and haematopoietic changes were studied. The significant changes in peripheral blood appeared after 150 days in the antagonist treated group and 180 days in the group on the deficient diet. After 240 days when morphological changes and an increased mortality also appeared, the changes in RBC and related values (haemoglobin, haematocrit, MCV, MCH&MCHC) were highly significant and indicated hypochromic microcytic anaemia; this was accompanied by leukopenia. The haematopoietic studies revealed significant increase in the earlier stages of erythrocytic development (basophilic erythroblasts and polychromatophilic eryth‐roblasts) with a simultaneous decrease in the later stages (young and mature reticulocytes). A series of pathological disorders in the various developing cells were recorded in the imprints of haematopoietic tissues. The pyridoxine specificity of these changes were confirmed by remedial treatment for a mo

ISSN:0022-1112    

DOI:10.1111/j.1095-8649.1983.tb04729.x

出版商:Blackwell Publishing Ltd    

年代:1983

数据来源: WILEY

摘要:

There are species differences in the physiological robustness ofAlestes nurse, Synodontis schallandTilapia zillii.The values of coefficient of condition in theAlestessp.,Synodontissp. andTilapiasp. were 1·74,2·48 and 3·6 respectively.Tilapia zilliiwas significantly more robust than any of the other two species (P<0

ISSN:0022-1112    

DOI:10.1111/j.1095-8649.1983.tb04730.x

出版商:Blackwell Publishing Ltd    

年代:1983

数据来源: WILEY

摘要:

Changes in haematological values (RBC numbers, haemoglobin content, haematocrit value, MCV, MCH, MCHC, TLC and DLC) based on weekly samples from a group of starved fish were investigated. After 8 weeks of starvation, the effects of restoration to a normal diet was evaluated. Parallel studies on haematopoietic tissues were also made. Changes in some biochemical values such as blood glucose, liver and muscle glycogen were also examined to correlate biochemical effects with those of haematological changes. Erythrocytes, thrombocytes and neutrophils were found to be most sensitive to starvation. The initial response to deprivation of food was an increase in RBCs and related values and in total leukocyte population. However, from week 5 onwards a sharp decline in these cell populations was noted. The leukocytes and thrombocytes showed a change parallel to RBC and the total leukocyte counts. However, neutrophils were observed to show a consistent increase throughout the starvation period. A blood glucose level below SOmglOOmh1appeared critical in relation to blood cell population. Haematopoietic studies revealed that reticulocytes and mesomyelocytes were unable to keep pace with the changing peripheral blood picture. Other stages in development responded to the changes in the peripheral blood.

ISSN:0022-1112    

DOI:10.1111/j.1095-8649.1983.tb04731.x

出版商:Blackwell Publishing Ltd    

年代:1983

数据来源: WILEY