Suitability of Duckweed (Lemna minor) as Feed for Fish in Polyculture System

Talukdar, M.Z.H.; Shahjahan, Md; Ms, Rahman

doi:10.3329/ijarit.v2i1.13994

Cited by 32 publications

(28 citation statements)

References 6 publications

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“…Within limit productive ranges of such water quality parameters have also been observed by a number of authors (Uddin et al, 2007;Chowdhury et al, 2008;Uddin et al, 2012;Rahman et al, 2012;Talukdar et al, 2012;Siddika et al, 2012;Nupur et al, 2013) in the aquaculture ponds of BAU area which are in conformity with those of the present study.…”

Section: Discussionsupporting

confidence: 92%

Effects of artificial feeds on growth and production of fishes in Polyculture

Hosen

Shahjahan

et al. 2015

Int. J. Agril. Res. Innov. & Tech.

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A study on the effects of artificial feeds on growth and production of fishes along with some limnological conditions were conducted in polyculture system. Species of Indian major carp (Cirrhinus mrigala) and exotic fishes (Hypophthalmicthys molitrix and Oreochromis niloticus) were stocked in six ponds under two treatments, each with three replications. Stocking rate in both treatments was 100 fish per decimal at the ratio of silver carp: tilapia: mrigal = 2: 2: 1. Fertilization and artificial feeds were given in Ttreatment 1 (T1) and only fertilization was done in Treatment 2 (T2). Wheat bran, rice bran and soybean meal were given daily as artificial feed in T1 in the ratio of wheat bran: rice bran: soybean meal = 2: 2: 1 (by wt). Urea, T.S.P and cow dung were applied fortnightly at the rate of 60 g deci -1 , 90 g deci -1 and 2 kg deci -1 respectively. Water temperature, transparency, pH, dissolved oxygen, free CO2, total alkalinity, PO4-P and NO3-N were determined fortnightly and phytoplankton and zooplankton were studied fortnightly. These limnological conditions were more or less similar in the ponds under two treatments and were within suitable ranges. Calculated gross and net yields of fish were 16.56 and 12.48 ton ha -1 respectively in case of fertilization and artificial feeding application (T1) and 9.99 and 5.91 ton ha -1 respectively in case of only fertilization (T2). Application of artificial feed in T1 significantly increased the growth and production of fish more than two times which indicates that artificial feeding in polyculture is very useful for increasing fish production.

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Section: Discussionsupporting

confidence: 92%

Effects of artificial feeds on growth and production of fishes in Polyculture

Hosen

Shahjahan

et al. 2015

Int. J. Agril. Res. Innov. & Tech.

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“…Though they have been used for the safety of humans, their harmful effects are alarming on other non-target animals like fish. Contamination of water by insecticides, either directly or indirectly can lead to fish kills and reduced productivity of waterbodies Siddika et al, 2012;Talukdar et al, 2012;Nupur et al, 2013). In Bangladesh, more than 300 types of pesticides and insecticides are used for crop protection in agriculture (Uddin et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Changes in hematological parameters and gill morphology in common carp exposed to sub-lethal concentrations of Malathion

Sharmin

Salam

Haque

et al. 2016

Asian J. Med. Biol. Res

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Abstract:Malathion is an organophosphorous insecticide widely used in the agricultural field in Bangladesh and reach in the aquatic environment through rain wash. In the present study, we examined the effects of Malathion on hematological parameters and gills morphology in common carp exposed to two sub-lethal concentrations (1.5 and 3.0 mg/L) for a period of 192h (8 days). For hematological parameters fish were sacrificed at 24, 48, 72, and 96h after start of exposure. Gills were collected at 192h after start of exposure. The blood glucose level was significantly elevated with increasing the concentration of Malathion. Red blood cells (RBCs), hemoglobin (Hb) and hematocrit (Hct) values were significantly decreased after the exposure of Malathion. Significant increments were observed in case of the mean corpuscular volume (MCV) and mean corpuscular hemoglobin concentration (MCHC), while no distinct changes were noted for mean corpuscular hemoglobin (MCH). Interestingly, white blood cells (WBCs) count was significantly increased with toxicity of Malathion. Several morphological changes, such as telangiectasia, blood lamellar congestion, hypertrophy of filaments, lamellar fusion were observed in the gills of fish exposed to Malathion. The present study revealed that the insecticide had adverse effects on various blood parameters and gills morphology in common carp. Thus, the use of insecticide in the agriculture field may be a threat to fauna and flora of the aquatic environment.

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“…One species from genera Lemna-L. minuta was recently found in Bulgaria (Kirjakov & Velichkova, 2016 investigation of usage of duckweed as a feed component for fish feeding used L. minor (Yılmaz, Akyurt, & Günal 2004;El-Shafai, El-Gohary, Verreth, Schrama, & Gijzen, 2004;Talukdar, Shahjahan, & Rahman, 2012). The studies connected with the test of other species from Lemna as a feed substitution in fish feed were practically missing or were very rare (Bairagi, Ghosh, Sen, & Ray, 2002).…”

Section: Introductionmentioning

confidence: 99%

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Sirakov¹,

Velichkova²

2018

Turk. J. Fish. Aquat. Sci.

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The aim of the current study was to investigate the influence of aquaponically grown duckweed (Lemna minuta) used as part of a biofilter in recirculation aquaculture systems, when its included in the composition (10 and 30% content of daily feed ratio) of sustainable diets on hydrochemical and technological parameters in common carp (Cyprinus carpio L) fingerlings cultivated in recirculation aquaponic systems. The inclusion of L. minuta in diets for carp fingerlings influenced the hydrochemical parameters and decreased the quantity of nitrogen and phosphorus compounds in water of tanks where carps were fed with feed containing duckweed, but difference was statistically significant only for ammonium (0.087±0.008)(P≤0.05). The carps fed with a diet containing 30% (L30) duckweed of their daily feed ratio showed better survival but similar growth and FCR than fish fed with L0 and differences were not significant (P≥0.05). The lower growth and higher FCR were measured in carps fed with L10 compared to the values of these parameters in carp's fingerlings fed with L0 diet and the differences were significant (P≤0.05). The duckweed presents cheap and easy accessible ingredients for feeding of carp. Furthermore it could be used for treatment of wastewater in recirculating aquaculture systems this way increasing their sustainability.

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Suitability of Duckweed (Lemna minor) as Feed for Fish in Polyculture System

Cited by 32 publications

References 6 publications

Effects of artificial feeds on growth and production of fishes in Polyculture

Effects of artificial feeds on growth and production of fishes in Polyculture

Changes in hematological parameters and gill morphology in common carp exposed to sub-lethal concentrations of Malathion

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