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20111
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Subject: Fisheries × Author: Kaur, Jyotsaroop × End date: 2012 × Start date: 2010 × Type: Thesis × Thesis Type: M.Sc ×
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    ThesisItemOpen Access
    Impact of vermicompost as pond fertilizer on the growth performance of Indian major carps
    (CCSHAU, 2011) Kaur, Jyotsaroop; Gupta, R.K.
    In the present investigations, the experiment was carried out in .0033 ha. sized ponds at the fish hatchary farm of CCSHAU, Hisar for 150 days to study the impact of vermicompost as pond fertilizer on the growth performance of Indian major carps. The different organic fertilizers viz. Vermicompost @ 15000kg/ha/yr, Vermicompost @ 10000kg/ha/yr, vermicompost @ 5000kg/ha/yr and cowdung @ 10000kg/ha/yr were used to monitored their effect on water quality parameters and growth of fishes. One forth dose of fertilizers were applied 15 days prior to fish stocking and remaining doses given at fortnightly interval. The fry/fingerlings were stocked @ 10000/ha/yr and fed upon supplemented feed given at 2% of their body weight. The water parameters like DO, pH, alkalinity, hardness, free CO2 and planktons were found in optimum range in all treated ponds. The maximum value of Dissolved oxygen (7.314 ± 0.060 to 7.573 ± 0.047mg/l), Phytoplanktons (536.000 ± 5.099 to 5210.00 ± 4.45 no/l) and Zooplanktons (186.000 ± 2.449 to 1782.00 ± 5.83 no/l) was observed under the vermicompost @ 10000kg/ha/yr. While that of pH (7.258 ± 0.54 to 8.251± 0.041mg/l), Alkalinity (199.320 ± 0.524 to 326 ± 0.743mg/l), Hardness (198.600 ± 0.872 to 252.640 ± 0.172 mg/l) and Free CO2 (0.812 ± 0.006 to 4.720 ± 0.037mg/l) were maximum in vermicompost @15000kg/ha/yr. The range of water parameters increased significantly (P<0.05) in the ponds. All the three species gained maximum growth in vermicompost 10,000 kg/ha/yr, followed by vermicompost @ 15000kg/ha/yr, vermicompost @ 5000 kg/ha/yr and cow dung @ 10000 kg/ha/yr. . Among the 3 species Catla catla showed maximum growth followed by Cirrhinus mrigala and Labeo rohita.There was two times more growth of Indian major carps as compared to control in pond treated with vermicompost @10000kg/ha/yr. All the observed data was statistically analysed by using completely randomized design (CRD) at 5% level of significance.