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  • 1
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    Protein from blanch liquor (2021)
    In:  http://aquaticcommons.org/id/eprint/16487 | 12051 | 2015-10-22 06:06:56 | 16487 | Society of Fisheries Technologists, India
    Details
    Publication Date: 2021-07-06
    Description: A process is described for isolation of edible protein from blanch liquor, which is discarded as a waste at present from prawn canning factories. The protein isolated is colourless and odourless and contains an appreciable amount of salt from the brine used for blanching prawns. It is comparable to fish protein concentrate in amino acid composition.
    Keywords: Fisheries ; edible proteins ; canned prawns ; processing fishery products
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 143-145
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  • 2
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    Stock assessment of sin croaker Johnieops sina (Cuvier) from Bombay waters (2021)
    In:  http://aquaticcommons.org/id/eprint/16532 | 12051 | 2015-04-03 07:15:01 | 16532 | Indian Fisheries Association
    Details
    Publication Date: 2021-07-06
    Description: Growth, mortality and stock parameters of Johnieops sina (Cuvier) based on the data collected from 1989 to 1994 from Sassoon Dock and New Ferry Wharf landing centres of Greater Bombay has been discussed here. The von Bertallanffy's growth parameters for this species were estimated as follows, L∞= 266 mm, K=0.91 per year and W∞=193 g. This species grows to 159 and 223 mm at the end of first and second year of its life. The mortality parameters estimated were Z=6.17, M=2. 03 and F=4.14. The E and U were calculated as 0.62 and 0.63 respectively. Length cohort and Thompson Bell analyses show that there is no decline in the catches at the present level of fishing. But even by doubling the efforts the catches can go up by only 9.4 % indicating that the fishing efforts is not economical and proportional to the increase in yield.
    Description: Paper presented at the National Symposium on Aquacrops, 16-18 November 1994, Versova, Bombay (India)
    Keywords: Fisheries ; Johnieops sina ; sin croaker ; stock assessment ; Bombay ; Maharashtra ; India
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 9-15
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  • 3
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    Effect of brood source on the growth of rohu (Labeo rohita Ham.) fingerlings reared in glass tanks with formulated diets (2021)
    In:  http://aquaticcommons.org/id/eprint/16372 | 12051 | 2015-03-27 10:10:41 | 16372 | Bangladesh Fisheries Research Institute
    Details
    Publication Date: 2021-07-04
    Description: A 60 day long feeding trial was conducted in an indoor static water system with rohu fingerlings (Labeo rohita Ham.) originating from wild brood, private and public hatcheries (denoted as A B and C respectively). They were fed on formulated diet having 34% crude protein level using indigenous ingredients. The effect of brood source on growth as well as their responses to formulated diet was observed. On the basis of the observed growth rate, food conversion ratio, protein efficiency ratio, apparent net protein utilization and apparent protein digestibility, fingerling source A showed significantly (p〈0.05) higher growth, while the sources B and C produced no significantly different (p〉0.05) in terms of these parameters. The results of the present study demonstrated that the fingerlings of wild source were of best quality in terms of growth and food utilization in comparison to those had the sources from hatcheries.
    Keywords: Aquaculture ; Labeo rohita ; fingerlings ; formulated diets
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 47-54
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  • 4
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    Feeding metabolism in an Indian major carp (Catla catla Lin.) fed on different protein diets (2021)
    In:  http://aquaticcommons.org/id/eprint/16440 | 12051 | 2015-03-27 09:11:30 | 16440 | Bangladesh Fisheries Research Institute
    Details
    Publication Date: 2021-07-05
    Description: Feeding metabolism in an Indian major carp, Catla catla fingerlings of 10.8+0.56g was investigated in a flow-through water recirculating system. The metabolic energy loss in resting metabolism and feeding metabolism were determined by the indirect method of oxygen consumption followed by multiplication by suitable oxycalorific coefficient. This was done in four metabolic chambers of a respirometer system. Ten fish fingerlings of mean total weight of 109.5, 110.4 and 112.8g/chambers respectively each in two experimental runs of three treatments a, b and c were used. The mean resting metabolic rate during unfed condition showed no significant variation in different treatments. The fish in three treatments a, b and c fed on diets containing 28, 33 and 38% crude protein had significantly different (p〈0.05) post-fed SDA magnitude of 497.7, 638.7 and 735.5 mgO2/chamber/day having an equivalent energy loss of 12.68, 14.68 and 15.86 KJ respectively. The SDA co-efficient in three treatments a, b and c were 14.95, 19.00 and 22.36% respectively whereas, respiratory energy - 'R' as % of mean total ingested energy in three treatments were 26.93, 31.17 and 34.74% respectively showing a significant increase (p〈0.05) with increase of protein. Feeding metabolism in an Indian major carp (Catla catla Lin.) fed on different protein diets.
    Keywords: Aquaculture ; oxygen consumption ; diets ; feeding behaviour ; fingerlings ; proteins ; protein diets ; feeding experiments ; feeding metabolism ; freshwater fish ; Catla catla
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 27-34
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  • 5
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    Performance of paddy-cum-prawn culture in rainfed low land ecosystem of Sunderbans (2021)
    In:  http://aquaticcommons.org/id/eprint/16510 | 12051 | 2015-04-03 06:46:43 | 16510 | Indian Fisheries Association
    Details
    Publication Date: 2021-07-06
    Description: Performance of both paddy (Var. NC 492) and prawn Penaeus monodon were assessed for two years during wet-season in rainfed lowland ecosystem with a view to study the economic viability of paddy-cum-prawn culture in the coastal saline zone of West Bengal. Both mono and dual culture of paddy and prawn were tried in the study. Fingerlings of prawn (α 35,000 haˉ¹) of 10-15 mm size were reared for about three and half months with and without fish feed. It was observed that addition of fish feed resulted in higher (57.7%) production of prawn (2.65 mg/haˉ¹) but not rice. Such increase in prawn production was 1.6 times higher when no feed was provided and 1.4 times higher when grown as sole crop. However, paddy, whether grown as mono or mixed culture, did not differ in yield significantly. In dual culture, the benefit - cost ratio was higher (6.83) when prawn was grown with feed and it was maximum (36.0) when grown without feed as sole crop. The study, therefore, indicates that paddy-cum-prawn culture under low land ecosystem of the coastal saline zone is enterprising particularly for small and marginal farmers who fear to take risk of growing prawn alone at the cost of paddy.
    Description: Paper presented at the National Symposium on Aquacrops, 16-18 November 1994, Versova, Bombay (India)
    Keywords: Aquaculture ; rice field aquaculture ; prawn culture ; Penaeus monodon ; saline zones ; Sunderbans ; West Bengal ; India
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 121-128
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  • 6
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    Postmortem changes in hilsa fish. Pt. 2. Studies on physical and bacteriological changes in iced and frozen stored hilsa fish (Tenualosa ilisha Ham.) (2021)
    In:  http://aquaticcommons.org/id/eprint/16364 | 12051 | 2015-03-27 10:19:19 | 16364 | Bangladesh Fisheries Research Institute
    Details
    Publication Date: 2021-07-04
    Description: Studies were conducted to evaluate the quality of hilsa fish during icing and freezing storage at -20°C by determining organoleptic and bacteriological aspects. The fishes stored in ice were organoleptically in acceptable condition 2 for 20 days. The bacterial load in muscles of 4 days ice stored fish was 2.5x10² CFU/g which gradually increased up to 1.8x10⁵ CFU/g after 20 days when the fishes were organoleptically in acceptable condition. The keeping qualities of different days of ice stored fishes were also evaluated during their subsequent frozen storage at -20°C. Both 4 and 7 days of ice stored fishes were organoleptically in acceptable condition up to 48 weeks but the highest degree of freshness was found for fish stored in ice for 4 days before freezing at -20°C. The result indicates that the longer is the duration of ice storage before freezing, the shorter is the shelf life of the fish. The initial bacterial load prior to freezing of the 4 and 7 days of ice stored samples were 2.5x10³ CFU/g and 3.8x10⁴ CFU/g, respectively which reduced to 2.21x10² CFU/g and 2.38x10² CFU/g, respectively at the end of the 24 weeks of frozen storage. However, after 40 weeks the bacterial load in the frozen stored sample fell below the detection level.
    Description: Pt. 1. Studies on rigor-mortis, typical yields and protein composition of dark and white muscle of hilsa fish (Tenualosa ilisha Ham.). Bangladesh Journal of Fisheries Research, 1(1), pp. 91-99.
    Keywords: Fisheries ; hilsa fishes ; Tenualosa ilisha ; organoleptic aspects ; bacteriological changes ; frozen storage ; processing fishery products
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 101-110
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  • 7
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    Effects of animal and plant protein diets on growth of Indian major carp (Labeo rohita Ham.) fingerlings (2021)
    In:  http://aquaticcommons.org/id/eprint/16453 | 12051 | 2015-03-27 09:09:39 | 16453 | Bangladesh Fisheries Research Institute
    Details
    Publication Date: 2021-07-05
    Description: An experiment was conducted with Labeo rohita fingerlings in an indoor static fish rearing water system of glass made aquaria. Five experimental diets A, B, C, D and E were formulated containing 33% dietary protein level in five treatments each having two replicates containing 12 fingerlings of mean total initial weight of 13.00±0.2g. Sixty days of feeding trial in this experiment showed that fish fed on diet 'A' containing fish meal and diet 'E' containing mixed plant sources protein had significantly highest and lowest growth respectively. However, no significant difference of growth was found in fish fed on diets C and D containing meat and bone meal, and mix of animal protein source diets respectively. The result showed that the apparent protein digestibility (APD) of diets 'A' and 'E' had significantly best and least values respectively. Food conversion ratio (FCR) and protein efficiency ratio (PER) ranged between 1.37 to 2.17 and 1.38 to 2.18 respectively. On the basis of observed FCR and PER diets 'A' and 'E' produced significantly highest and lowest growth respectively.
    Keywords: Aquaculture ; Labeo rohita ; protein feed ; diets ; rearing ; fingerlings ; proteins ; feeding experiments ; food conversion ; fish culture
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 113-120
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  • 8
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    Energetics of resting metabolism in an Indian major carp (Catla catla Ham.) (2021)
    In:  http://aquaticcommons.org/id/eprint/16420 | 12051 | 2015-03-27 09:27:35 | 16420 | Bangladesh Fisheries Research Institute
    Details
    Publication Date: 2021-07-05
    Description: Resting metabolism in Indian major carp, Catla catla Ham. fingerlings were investigated. For this purpose a water recirculatory system in the laboratory was used. The metabolic energy losses were determined by the indirect method of oxygen consumption by the fish and were then multiplied by an oxycalorific coefficient (Q-ox). Five metabolism chambers in the experimental system were used where there were two same treatment runs in quadruplicate of mean total weight of fish fingerlings of 109.5, 110.4, 112.8 and 111.6g/chamber. The water temperature in the system was 28±0.5°C. The mean metabolic rate in the replicates showed no significant variation (p〉0.05) and was found to be 151.66, 153.91, 150.25, 152.74 mgO-2/kg/h respectively. This showed an equivalent energy loss 5.40, 5.52, 5.51 and 5.56 KJ/chamber/day (35.60, 35.92, 36.67 and 36.40 KJ/kg/day) respectively. Energetics of resting metabolism in an Indian major carp (Catla catla Ham.)
    Keywords: Aquaculture ; resting metabolism ; oxygen consumption ; bioenergetics ; energy budget ; metabolism ; Catla catla ; carps
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 87-93
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  • 9
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    Study on the intestinal bacteria of Labeo rohita (Ham.) (2021)
    In:  http://aquaticcommons.org/id/eprint/16416 | 12051 | 2015-03-27 09:37:54 | 16416 | Bangladesh Fisheries Research Institute
    Details
    Publication Date: 2021-07-05
    Description: The quantitative and qualitative aspects of intestinal bacteria of rohu fish (Labeo rohita) showed that total viable count of bacteria ranged from 9.9 x 106 to 1.4 x 107 CFU/g of intestine in different age groups of fish. The bacterial load was highest in the month of July and lowest in January. The genera of the isolates from intestine included Coryneform, Micrococcus, Flavobacterium, Cytophaga, Achromobacter, Aeromonas Enterobacteriaceae and Vibrio. Coryneform was the dominant group throughout the study period followed by Micrococcus and Enterobacteriaceae. Marked variations in the bacterial load and generic composition of intestinal bacteria were evident during the study period in different age groups of rohu fish.
    Keywords: Aquaculture ; intestines ; microorganisms ; freshwater fish ; microbiological analysis ; Achromobacter ; bacterial load ; vibrio ; Labeo rohita ; Cytophaga ; Aeromonas ; Flavobacterium ; Micrococcus ; seasonal variation
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 63-66
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  • 10
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    A small scale fish meal dryer (2021)
    In:  http://aquaticcommons.org/id/eprint/16490 | 12051 | 2015-03-27 08:51:23 | 16490 | Society of Fisheries Technologists, India
    Details
    Publication Date: 2021-07-06
    Description: A batch type rotary drum dryer for the production of fish meal suitable for operation in the fishing villages of India has been designed, fabricated and operated successfully. The dyer can be used for production of fish meal from whole lean fish or press-cake from fish body oil extraction plants. The time taken to reach a moisture level below 10% is 5-8 hours depending upon the type of material fed into the dryer.
    Keywords: Fisheries ; rotary drum dryer ; fish meal production ; processing fishery products ; India
    Repository Name: AquaDocs
    Type: article
    Format: application/pdf
    Format: application/pdf
    Format: 164-168
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