@article{Ahmed:211262,
      recid = {211262},
      author = {Ahmed, G. U. and Upala, S. R and Hasan, N. A},
      title = {Comparative study on growth performance between Vietnam  koi and Thai koi in mini ponds},
      journal = {Journal of the Bangladesh Agricultural University},
      address = {2014-12-31},
      number = {452-2016-35818},
      series = {12(2)},
      pages = {5},
      month = {Dec},
      year = {2014},
      abstract = {An experiment was carried out to determine the comparative  growth study of Vietnam koi (Anabus testudineus) and Thai  koi (Anabus testudineus) for a period of 90 days in eight  experimental ponds in the northern side of the Faculty of  Fisheries, Bangladesh Agricultural University, Mymensingh.  Four treatments were considered having two replicates. For  Vietnam koi treatments were named VT1 and VT2 and for Thai  koi were TT1 and TT2. All the fish were of same age group  having mean body weight of 0.30 g. Feeding frequency in all  the treatments were two times a day. Fish were fed quality  fish feed at a rate of 60% of their body weight for the  first thirty days that was gradually reduced to 25% for the  next thirty days and 10% till the termination of the  experiment. The mean value of water temperature were 29.78  in VT1, 30.42 in VT2, 30.50 in TT1 and 29.99°C  in TT2,  dissolved oxygen were 7.21, 7.42 , 7.14 and 7.34 mg/l in  VT1, VT2, TT1 and TT2,  respectively, mean pH  values were  7.42 in VT1, 7.29 in VT2, 7.50 in TT1 and 7.45 in TT2,  ammonia were 0.21, 0.24, 0.28 and 0.23 mg/l in VT1, VT2,  TT1 and TT2 , respectively and  alkalinity  were 200.00,  205.00, 210.00  and  205.00 ppm in VT1, VT2, TT1 and TT2 ,   respectively. The result of the present study showed that  the best weight gain of 80.00 g was observed in VT1 after  90 days of culture period. Average weight gain (g) were  0.83, 0.88, 0.51 and 0.61; SGR (per day) were 3.93, 3.95,  3.65 and 3.71%; FCR were 1.50, 1.67, 1.70 and 1.90;  survival rate were 78.50, 76.50, 90.00 and 82.00% and fish  production were 7,839, 15,923, 5,519 and 11,820 kg/ha/3  months in VT1, VT2, TT1 and TT2, respectively. Growth of  both the species was higher in lower stocking densities,  whereas, production was increased in higher stocking  densities. The present research findings suggested that  Vietnam koi has high growth potential in comparison to Thai  koi under mini pond culture condition.},
      url = {http://ageconsearch.umn.edu/record/211262},
      doi = {https://doi.org/10.22004/ag.econ.211262},
}