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Articles by L.A. Argungu
Total Records ( 2 ) for L.A. Argungu
  L.A. Argungu , A. Christianus , S.M.N. Amin , S.K. Daud , S.S. Siraj and M. Aminur Rahman
  The presence of Asian catfish, Clarias batrachus in Malaysia is at a deteriorating state. It is hardly a cultured species since the supply of seed is unavailable. This species is found in lowland streams, swamp and rice fields. Therefore, they are greatly exposed to factors such as intermittent periods of drought, devastation of the natural habitat and agro-chemicals. Presently, fish farmers are more into the culture of Clarias gariepinus. This threatened the mere existence of this indigenous C. batrachus. Hardiness, good growth, efficient food conversion and excellent nutritional profile guarantee C. batrachus as a suitable aquaculture candidate. Some conservation efforts were looked into in order to prevent the extinction of this potentially important catfish.
  L.A. Argungu , A. Christianus , M.S.N. Amin , S.K. Daud and S.S. Siraj
  Malaysia is one of the countries in Asia with higher scarcity of Clarias batrachus. Consequently, to arrive at better ways of handling the situation the reproductive endocrinology of the species was investigated. Testosterone (T), 11-ketotestosterone (11KT) and 17β-estradiol (E2) were the plasma sex steroid hormones monitored monthly throughout the reproductive cycles. Several peak levels were observed in the annual profiles of all the steroid hormones, implying that C. batrachus is a non-seasonal breeder, signifying that the species could spawn several times during the reproductive cycle. Most of the scholars who earlier worked on the breeding of this fish concentrated on a particular period (May to August) assuming that was the only season successful induced breeding of the species could be achieved. The present study has enhanced the understanding of the reproduction of C. batrachus. It has provided a platform for the optimization of reproduction and breeding program of the species.
 
 
 
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