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At least 55 records · Page 3Linked to original sources
PubMed1978

[Structural and immunochemical studies on carp (Cyprinus carpio L.) immunoglobulins. IV. In vitro reassociation of carp immunoglobulin].

Mildly reduced high molecular immunoglobulin and antibody of carp with tetrameric structure, carbohydrate content of 6 to 7% and absence of J-chain can reassociate to native molecules. The disulphide bonds between subunits and polypeptide chains are sensitive and can be completly splitted by treatment with only 1 mM DTE. One half of the immunoglobulins retained their high molecular structure as expression of strong non-covalent bonds between subunits of the tetrameric molecule. The other half of immunoglobulins dissociate into HL-halfmolecules. We suppose that carps possess 2 "typs of immunoglobulins" which differ in the tendency to aggregate to high molecular immunoglobulins.

Animals↗
PubMed2002

Hematological effects of high dose of cortisol on the carp (Cyprinus carpio L.): cortisol effect on the carp blood.

The level of circulating cortisol and peripheral blood parameters were determined in carp age 2 years (K(2)) 24, 72, and 216 h after a single intraperitoneal injection of a high dose (200 mg x kg(-1) body wt) of hydrocortisone. The most striking effect of cortisol was manifest as a significant change in the percentage composition of leukocytes, whose number per unit volume of blood remained relatively constant. A profound lymphopenia and eosinopenia were compensated for in the general balance by an increased number of circulating promyelocytes and myelocytes as well as metamyelocytes and mature polymorphonuclear neutrophilic granulocytes. The results and their possible reasons are discussed on the background of literature data.

Animals↗
PubMed2004

Feeding ecology and food composition of the black carp Mylopharyngodon piceus and the grass carp Ctenopharyngodon idella inhabiting the fish pond of Al-Abbassa fish hatchery with emphasis given to vector snails.

Stomach contents of M. piceus and C. idella collected from earthen fish ponds at Al-Abbassa fish hatchery during different seasons were examined. Food items were analyzed by three methods; the numerical (N%) percentage of point assessment (P%) and frequency of occurrence (F%). A comparison of the different methods emphasized the importance of snails as the major food resources in the diet of M. piceus during all seasons. During winter, stomachs of the most fish samples collected from fish ponds were empty or had traces of food. The index of relative importance (I.R.I) indicated that snails were the major food category in the diet of M. piceus during summer, autumn and spring represented by 7331, 9696 and 11670 respectively. Plants were the main food item in the diet of C. idella during summer (4604), meanwhile they came 3rd in relative importance in the diet during autumn and spring. Artificial fish food came as the 2nd food item in the diet of M. piceus during summer (1398.9) and autumn (5896.3) but it completely absent in spring. It is considered the main food item in diet of C. idella during autumn (10384.3) and spring (6293.5) and being 3rd in summer (1395.5). The results showed that snails reached highest level in the diet of M. piceus during spring (about 80% of all diet, decreased during summer (about 70%) and reached lowest proportion in autumn (50%). Plants exhibited marked seasonal variation in abundance with maximum level during summer (about 41% of all diet decreased during spring (27%) and autumn (22%). Artificial fish food was the highest in the diet of M. piceus during autumn (39%), decreased in summer (22%) until disappeared during spring. It reached highest level in diet of C. idella during autumn (49%), decreased in spring (38%) and reached lowest proportion during summer (21 %).

Animals↗