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Articles by J. Iqbal
Total Records ( 3 ) for J. Iqbal
  Nazir Hussain , Ghulam Sarwar , J. Iqbal , R.A. Roy and Jalil Akhtar
  Limited supply of canal water forces for seeking alternative sources for the supplementation. For this purpose, the quality of Marh-Chiniot (M-C) drain water was tested in different seasons from irrigation/ reclamation point of view. Results indicated that EC of the waters varied in sampling seasons at different sampling points. In general, EC values ranged between 0.25 and 2.69 dSm-1. Its mean values were calculated as 1.08, 1.06, 1.83 and 1.85 dSm-1 during August 1997, December 1997, June 1998 and February 1999 respectively. The mean SAR of these waters was found below the safe limit of 10 (m.mol L-1) ½ with only one exception for June 1998 when it was having this parameter in marginal range. Respective mean values of SAR for the above months were 8.26, 5.42, 11.79 and 9.5 (m.mol L-1) ½. Values of RSC were found generally high with its computed means of 4.71, 4.13, 7.98 and 6.31 me. L-1 for August, December 1997, June 1998 and February 1999 respectively. The quality of waters varied from upstream to downstream, without a definite trend. The seasonal effect was very much pronounced depending upon the flow of water. It may be concluded that this water can be used for crop production and reclamation purposes with some suitable management practices. However, frequent quality assessment will be needed especially, in different seasons.
  L.A. Lodhi , Z. I. Qureshi , F.R. Chohan , J. Iqbal and I. Ahmad
  The present project was designed to study the effect of substitution of buffalo bull seminal plasma with that of cow bull on liveability and fertility of buffalo bull spermatozoa. After collection, semen was divided into three fractions. a) Half of the seminal plasma of buffalo bull was substituted with equal amount of cow bull seminal plasma, b) The seminal plasma of buffalo bull was completely substituted with that of cow bull, c) No substitution was made (control group). The liveability (hrs) of buffalo bull spermatozoa stored at 37°C was significantly higher (p<0.05) in half substituted seminal plasma (21.3) as compared to that in full substituted (8.4) and control groups (13.7). Significantly higher conception rate was observed with half substituted seminal plasma semen samples (65.58) as compared to inseminations with control group (54.4) semen samples.
  M.H.S. Wattoo , J. Iqbal , T.G.Kazi and M.A.Jakhrani
  In Pakistan, the tanning industry is very important for exporting leather as main item. In Kasur tanning industries are within and around residential areas because there is no proper industrial area. The discharge of tanneries effluents pollute air, soil, subsoil, surface water and underground water because of the presence of toxic organic and inorganic compounds especially chromium which is used in tanning processes. By analysis of industrial effluents and drinking water samples collected from different areas of Kasur, it was observed that the level of salts as well other toxic metal present was alarmingly high. The level of chromium in waste water was found to be 147 ppm, also the level of chromium was high in drinking water i.e. above 2.0 ppm. WHO suggested permissible value of chromium in drinking water is 0.05 ppm. The pretreatment of industrial wastes is therefore necessary to control environmental pollution and save our priceless ecosystem and prevent spread of diseases in people residing in vicinity of tanneries.
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