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Subject: Aquaculture × Author: PARVIND KUMAR × End date: 2022 × Start date: 2020 × Type: Thesis ×
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    ThesisItemOpen Access
    EVALUATION OF DIFFERENT STRATEGIES FOR ENHANCEMENT OF SURVIVAL RATE AND GROWTH PERFORMANCE IN THE NURSERY REARING OF AMUR COMMON CARP, CYPRINUS CARPIO HAEMATOPTERUS
    (KARNATAKA VETERINARY, ANIMAL AND FISHERIES SCIENCES UNIVERSITY, BIDAR, 2022) PARVIND KUMAR; MANJAPPA
    The present research was conducted to investigate the effect of different stocking densities and protein percentage in the nursery rearing of Amur common carp (Cyprinus carpio haematopterus). The experiment was carried out in two stages viz., spawn to fry and fry to fingerling. The growth results of spawn to fry showed maximum average weight in treatment T2 (190 mg - mixture of organic and inorganic fertilizers) followed by T1 (140 mg - mixture of GOC and cow dung), t3 (140 mg-cow dung + SSP and Urea) and control groups T0 (50 mg - cow dung). There was significant difference (P<0.05) observed in between the treatments and control. The survival percentage was observed high in T2 (42.98%) followed by T3 (41.01%), T1 (40.18%) and T0 (34.08%). The better growth and survival in nursery rearing from fry to fingerling for a period of 60 days was observed in T1 (40% protein feed) followed by T0 (35% protein feed) and T2 (30% protein feed). The water quality parameters recorded during the study period and found suitable for seed rearing. High average phytoplankton density (64-140 Nos/l) and zooplankton (59-67 Nos/l) was observed. The result of current experiment clearly demonstrates that use of organic and inorganic fertilizer mixture was suitable in spawn to fry development and 40% protein feed helped in better growth and survival from fry to fingerling of Amur carp. Keywords: Amur carp, Spawn to fry, Fry to fingerling, Physico-chemical characteristics