Vol 27 No 2 December - The Indian Society for Parasitology

JPD : Vol. 27 (2), 2003
Distribution of trace metals in Avitellina Lahorea and Serum of Sheep
115
TABLE II A
by the above symports viz., Na/glucose and
Na/aminoacids (Thomborough, 1995). There is no
Concentration of cobalt, selenium and zinc in the
marked variation in the percent water content in the
proglottides of adult cestode Avitellina lahorea and
different regions of A.lahorea. The above finding also
host (sheep) serum (ppm/µg/ml)
suggests that the cell electrolyte Na may be involved in
the cell volume regulation against the osmotic changes
Immature Mature Gravid Serum F-value P-value in the luminal environment. The influx of Na along
Cobalt (b) (a) (a) (a)
with cations inside the segments may increase their
Mean 0.029 0.011 0.007 0.015 16.02 0.000** osmolarity and prevent the water loss in case, fluidity
± ± ± ±
of the lumen changes.
S.E. 0.004 0.000 0.001 0.002
The electrolyte potassium level showed minimal
Selenium (c) (b) (a) (d)
Mean 0.379 0.280 0.188 0.526 106.19 0.000** concentrations in all the three different regions. Such
± ± ± ± hypokalemic condition confirms to the documented
S.E. 0.017 0.017 0.006 0.014
concept that the living organisms will exhibit
Zinc (c) (b) (a) (d) hypematremia and hypokalemia in the normal
Mean 0.418 0.314 2.227 0.625 1760.03 0.000
physiological condition (von Brand, 1966).
± ± ± ±
S.E. 0.004 0.005 0.004 0.002
The increasing gradient of calcium concentration
towards the posterior segments agrees with the report
Each value represents mean ± SE of six observations
** denote significant at 1% level
of others (Chowdhury and DeRycke, 1977;
Concentration in order a