Sains Malaysiana 42(11)(2013): 1565–1569
Effects
of Stocking Density on Growth Performance and
Production of Mola, Amblypharyngodon
mola
(Kesan Ketumpatan Stok dalam Prestasi Pertumbuhan dan Penghasilan
Mola
Amblypharyngodon mola)
M. ASADUJJAMAN1, M.A.
WAHAB1, M.K.
FATEMA1, M.
BELAL
HOSSAIN2 3* & A.K.M.S.
AZAM1
1Faculty of Fisheries, Bangladesh Agricultural
University, Mymensingh, Bangladesh
2Department of Biology, FOS,
Universiti Brunei Darussalam, 1413, Brunei
3Fisheries and Marine science, Noakhali Science and Technology
University
Diserahkan: 23 Oktober 2012/Diterima: 2 Februari 2013
ABSTRACT
An experiment was conducted to determine the effects of stocking
density on growth performance and production of Amblypharyngodon mola during 9 July to 9
October, 2011. There were three treatments, each with three replications in
nine earthen ponds with an average depth of 1.5 m. Ponds of three treatments T1,
T2 and T3 were stocked with mola at the
density of 145000; 73000 and 36500 ind. ha-1.
Water temperature, transparency, total alkalinity, pH, dissolved oxygen,
Nitrate-nitrogen, nitrite-nitrogen, ammonia-nitrogen, phosphate-phosphorus and
chlorophyll-a of the ponds water were measured weekly. Among water quality
parameters, significant differences (p<0.05) were observed in case of
temperature and dissolved oxygen. The lowest PO4-P
and chlorophyll-a concentration were observed in T1.
All water quality parameters were in suitable range of fish culture. The
numbers of fishes at harvest were 155633.31±11.5; 84200±4 and 45600±7.21 indi.
ha-1 in T1, T2 and T3,
respectively. The mean weight of mola during harvest decreased significantly (p<0.05)
with increasing stocking density. The net production of mola was significantly
higher in treatment T3 (43.22±8.66 kg ha-1) than T2 (34.82±6.53
kg ha-1) and T1 (32.74±6.53 kg ha-1). Considering the highest net
production among the three tested densities, the stocking density applied in T3 was
found the best.
Keywords: Growth performance; mola; production; stocking density
ABSTRAK
Satu uji kaji telah dijalankan untuk mengetahui kesan ketumpatan
stok dalam prestasi pertumbuhan dan penghasilan ikan Amblypharyngodon mola dari 9 Julai hingga 9
Oktober 2011. Tiga perlakuan dengan tiga replikasi setiap satu telah digunakan
dalam kolam berdasar tanah dengan kedalaman 1.5 m. Kolam dengan tiga perlakuan
T1,
T2 dan T3 telah dimasukkan ikan mola pada
ketumpatan 145000; 73000 dan 36500 ind. ha-1.
Suhu air, kelutsinaran, kealkalinan total, pH, oksigen terlarut,
nitrat-nitrogen, nitrit-nitrogen, ammonia-nitrogen, fosfat-fosforus dan
klorofil-a pada air kolam diukur setiap minggu. Antara parameter kualiti air
tersebut, perbezaan signifikan (p<0.05) diperhatikan pada suhu dan
oksigen terlarut. Kepekatan PO4-P dan klorofil-a paling
rendah diperhatikan dalam T1. Kesemua parameter kualiti air didapati berada
pada julat yang sesuai untuk kultur ikan. Ketumpatan ikan semasa penuaian
adalah 155633.31±11.5; 84200±4 dan 45600±7.21 indi. ha-1 dalam
T1,
T2 dan T3 masing-masing. Berat min ikan mola
semasa penuaian telah menurun secara signifikan (p<0.05) dengan
peningkatan ketumpatan stok. Penghasilan bersih ikan mola adalah lebih tinggi
secara signifikan dalam perlakuan T3 (43.22±8.66 kg ha-1)
daripada T2 (34.82±6.53 kg ha-1) dan T1 (32.74±6.53
kg ha-1). Dengan mengambil kira penghasilan bersih antara
ketiga-tiga ketumpatan yang diuji, ketumpatan stok yang diperlakukan dalam T3 didapati
paling baik.
Kata kunci: Ketumpatan stok; mola; penghasilan;
prestasi pertumbuhan
RUJUKAN
Ahmed, H. 2004. Promotion of small indigenous
fish species (SIS)-mola based carp polyculture technology at Gazipur area of
Bangladesh. M.Sc dissertation, Dept. of Fisheries Management, Bangladesh
Agricultural University, Mymensingh. p. 85 (unpublished).
Ahmed, K. 1981. Nutritional blindness in
Bangladesh. In Touch: VHSS News Letter 45(Feb): 12.
Alam, A.K.M.A. 1985. Mini Pond. CARITAS
Bangladesh, Dhaka.
Alim, M.A. 2005. Developing a fish polyculture
technique for farmers’ consumption and cash crop. PhD. Dissertation. Department
of Fisheries Management, Bangladesh Agricultural University, Mymensingh. p. 153
(unpublished).
Asaduzzaman, M. 2005. The potentials of organic
farming of giant freshwater prawn (Macrobrachium rosenbergii) in
Bangladesh. MSc dissertation, Dept. of Fisheries Management, Bangladesh
Agricultural University, Mymensingh. p. 125 (unpublished).
Asaduzzaman, M., Salam, M.A., Wahab, M.A.,
Kunda, M. & Rahman, M.B. 2006. Effects of control of C/N ratio by low-cost
carbohydrate addition on water quality and pond ecology in freshwater prawn Macrobrachium
rosenbergii post-larve nursing system. Bangladesh J. Fish. Res. 10(2):
121-130.
Azim, M.E., Talukder, S.S., Wahab, M.A., Haque,
M.M. &. Haque, M.S. 1995. Effect of liming and maintenance of total
hardness level in fish production in fertilized ponds. Progress. Agric. 6(2):
4-14.
Banu, C.P., Nahar, B., Begum, M. & Ahmed, K.
1985. Studies of the protein, riboflavin and iron contents of some freshwater
fish and a prawn of Bangladesh. Bangladesh J. Zool. 13(1): 25-28.
Bhuiyan, A.L. 1964. Fishes of Dacca.
Asiatic Society of Pakistan, Dacca.
Chowdhury, M.T.H., Dewan, S., Wahab, M.A.,
Uddin, M.J. & Thilsted, S.H. 2000. Water quality parameters of the rice
fields used for rice cum fish culture. Bangladesh J. Fish. 23(1): 25-29.
Dewan, S., Wahab, M.A., Beveridge, M.C.M.,
Rahman, M.H. & Sarker, B.K. 1991. Food selection, electivity and dietary
overlap among planktivorous Chinese and Indian major carp fry, fingerling grown
in extensively managed rainfed ponds in Bangladesh. Aquaculture and
Fisheries Management 22: 1188-1190.
Hasan, M.A. 1998. Development of carp
polyculture techniques with small indigenous fish species mola (Amblypharyngodon
mola), chela (Chela cachius) and punti (Puntius sophore). MSc
dissertation, Dept. of Fisheries Management, Bangladesh Agricultural
University, Mymensingh. p.71 (unpublished).
Hoq, M.E., Islam, M.M. & Hossain, M.M. 1996.
Polyculture of freshwater prawn, Macrobrachium rosenbergii with Chinese
and Indian carps in farmer’s pond. J. Aquacult. Trop. 2(11): 135-141.
Huq, K.A., Manir, S.M.I., Rahman, M.M. &
Ferdous, K.S. 2004. Production performance of Macrobrachium rosenbergii (De
Man) in monoculture versus Polyculture system. J. Bangladesh Agril. Univ. 2(1):
141-149.
IUCN. 2001. Red Book of Threatened Fishes of
Bangladesh. IUCN- The World Conservation Union.
Kohinoor, A.H.M. 2000. Development of culture
technology of three small indigenous fish-mola (Amblepharyngodon mola),
punti (Puntius sophore) and chela (Chela cachius) with notes on
some aspects of their biology. PhD. Thesis, Department of Fisheries Management,
Bangladesh Agricultural University, Mymensingh. p. 363 (unpublished).
Kohinoor, A.H.M., Islam, M.L., Wahab, M.A. &
Thilsted, S.H. 1998. Effect of mola (Amblypharyngodon mola) on growth
and production of carps in polyculture. Bangladesh J. Fish. 2(2):
119-126.
Kunda, M., Azim, M.E., Wahab, M.A., Dewan, S.,
Roos, N. & Thilsted, S.H. 2008. Potential of mixed culture of freshwater
prawn (Mascrobrachium rosenbergii) and self-recruiting small species
mola (Amblypharyngodon mola) in rotational rice-fish/prawn culture
systems in Bangladesh. Aquaculture Research 39: 506-517.
Paul, S. 1998. Comparison between carp
polyculture system with silver carp (Hypophthalmichthys molitrix) and
with small indigenous fish mola (Amblypharyngoedon mola). MSc Thesis,
Department of Fisheries Management, BAU, Mymensingh. p. 85 (unpublished).
Rahman, A.K.A. 1989. Freshwater Fishes of
Bangladesh. Zoological Society of Bangladesh, Department of Zoology,
University of Dhaka, Dhaka-1000.
Rahman, S.M.S. 2005. Effect of stocking density
of gift strain of nile tilapia (Orechromis niloticus) and freshwater
prawn (Macrobrachium rosenbergii) in periphyton based production system.
M.S. dissertation, Dept. of Fisheries Management, Bangladesh Agricultural
University, Mymensingh. p. 84 (unpublished).
Talwar, P.K. & Jhingran, A.G. 1991. Inland
Fishes of India and Adjacent Countries. Volume 1. Oxford & IBH
Publishing Co. Pvt. Ltd. New Delhi, Calcutta.
Uddin, M.M. 2002. Effects of addition of small fish on pond
ecology and production in polyculture. M.S. thesis, Department of Fisheries Management, BAU, Mymensingh. p. 99
(unpublished).
Wahab, M.A., Ahmed, Z.F., Islam, M.A. & Rahmatullah,
S.M. 1995. Effects of introduction of common carp, Cyprinus carpio (L.)
on the pond ecology and growth of fish in polyculture Aquaculture Res. 26(9):
619-628.
*Pengarang
untuk surat-menyurat; email; mbhnstu@gmail.com
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