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Journal of Fisheries and Aquatic Science
  Year: 2014 | Volume: 9 | Issue: 3 | Page No.: 92-108
DOI: 10.3923/jfas.2014.92.108
 
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Study on the Growth Performance and Production of Juvenile Indian Major Carps (Catla catla, Labeo rohita and Cirrhinus cirrhosus) and Their Hybrids

Abdullah Al Mamun and Anisul Islam Mahmud

Abstract:
Three different experiments were conducted to study the growth performance and production of juvenile Indian major carps and their hybrids, (catla-Catla catla; rohu-Labeo rohita and mrigal-Cirrhinus cirrhosus) from January 2008 to October 2008 in Field Laboratory Complex of the Faculty of Fisheries, Bangladesh Agricultural University, Mymensingh. Pure fish species of Indian major carps, hybrids and both pure species (65%) and hybrids (35%) were stocked in experiment I, II and III, respectively with three replicates. Forty fish per decimal were stocked in each of nine ponds with pond area of 2 dec. The ratio of pure species of catla, rohu and mrigal was 40:30:30 in experiment I whereas the hybrids of catlaxrohu, catlaxmrigal and mrigalxrohu were stocked at the same ratio in the experiment II. On the other hand, in experiment III pure catla, rohu and mrigal were stocked at the ratio 40:30:30 and hybrids were stocked at the same ratio. All the experimental ponds were subjected to the same regime of feeding and fertilization. The physico-chemical parameters such as temperature, pH, alkalinity, dissolved oxygen, transparency, nitrate-nitrogen, phosphate-phosphorus, soil quality and abundance of plankton were found to be in the expected range. During observing the growth performances in experiment I, catla showed highest average weight gain (177.97±1.54 g) that was significantly (p<0.01) different from the values of mrigal (123.67±5.77 g) and rohu (177.94±1.73 g). Experiment II showed highest average weight gain in catlaxrohu hybrids 209.2±1.15 g. Experiment III showed the highest average weight gain in pure mrigal 208.43±1.15 g followed by the pure catla 148.5±1.15 g and hybrids of catlaxrohu 132.53±1.5 g. Catlaxmrigal and mrigalxrohu showed the lower performances in average weight gain both in experiment II and experiment III. The highest net production was found 961.91±118.64 kg ha-1 10 months in experiment II followed by the net productions of pure and hybrids of juvenile Indian major carps 951.42±39.70 kg ha-1 10 months in experiment III and the same pure species 810.98±24.85 kg ha-1 10 months in experiment I.
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How to cite this article:

Abdullah Al Mamun and Anisul Islam Mahmud, 2014. Study on the Growth Performance and Production of Juvenile Indian Major Carps (Catla catla, Labeo rohita and Cirrhinus cirrhosus) and Their Hybrids. Journal of Fisheries and Aquatic Science, 9: 92-108.

DOI: 10.3923/jfas.2014.92.108

URL: https://scialert.net/abstract/?doi=jfas.2014.92.108

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