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Biochemical Composition of Some Small Indigenous Fresh Water Fishes from the River Mouri, Khulna, Bangladesh  [PDF]
D. Kamal,A.N. Khan,M.A. Rahman,F. Ahamed
Pakistan Journal of Biological Sciences , 2007,
Abstract: Biochemical composition of seven small indigenous fresh water fishes namely Magur (Clarias batrachus), Shingi (Heteropneustes fossilis), Koi (Anabas testudineus), Foli (Notopterus notopterus), Royna (Nandas nandas), Taki (Channa punctatus) and Tangra (Mystus vittatus) from the Mouri river Khulna, Bangladesh was studied in order to evaluate their nutritional values. The mean value of protein, fat, moisture and ash content was found as 14.87±0.63, 7.90±1.91, 73.49±0.69 and 3.74±0.46% in C. batrachus; 17.34±0.51, 3.45±0.92, 76.06±2.24 and 3.15±0.25% in H. fossilis; 19.63±0.5, 7.79±2.73, 69.27±1.04 and 3.31±0.83% in A. testudineus; 18.30±0.79, 4.98±1.71, 72.68±1.08 and 5.82±0.82% in N. notopterus; 16.09±2.66, 7.34±0.49, 75.75±0.78 and 5.19±.029% in N. nandas; 19.13±2.40, 4.55±1.18, 70.55±1.89 and 6.81±0.94% in C. punctatus and 15.62±0.32, 7.53±1.10, 73.99±3.13 and 6.50±0.63% in M. vittatus. Considering the result of the present study, it can be concluded that all the species are rich in food value.
Haematological studies of climbing perch (Anabas testudineus Bloch)
Sukasem, N.,Ruangsri, J.,Supamattaya, K.
Songklanakarin Journal of Science and Technology , 2005,
Abstract: Some blood parameters of the climbing perch (Anabas testudineus Bloch) i.e. red (RBC) and white (WBC) blood cell count, percent haematocrit (HTC), hemoglobin, plasma protein as well as hepatosomatic index (HSI) were studied. There were no statistically significant difference (p>0.05) in average body weight and length of fish from the earthen pond and net cage culture, which were 16.85±1.46 g and 16.24±2.42 g, respectively, for the weight and 10.02±0.25 and 9.74±0.37 cm, respectively, for the length. Haematologicalstudies revealed that RBC, WBC including percent HTC levels of the fish from earthen pond and net cage were not significantly different (> 0.05). Whereas hemoglobin and serum protein concentration of the fish sampling from net cage were higher than those sampled from the earthen pond (p<0.05), with value of 12.21± 0.91 g/dl and 11.12±0.85 g/dl for hemoglobin and 4.61±0.50 mg/dl and 3.87±0.62 mg/dl for serum protein, respectively. HSI of the fish cultured in the earthen pond was significantly (p<0.05) higher than that of fish reared in net cage, with value of 1.93±0.12% and 1.66±0.12%, respectively.
Effects of lead on the plasma electrolytes of a freshwater fish, Heteropneustes fossilis
Ajai K Srivastav, Rubi Rai, Nobuo Suzuki, Diwakar Mishra and Sunil K Srivastav
International Aquatic Research , 2013, DOI: 10.1186/2008-6970-5-4
Abstract: The freshwater catfish, Heteropneustes fossilis, was subjected to 657.6 mg/L (0.8 of 96 h LC50) and 164.4 mg/L (0.2 of 96 h LC50) of lead nitrate for short-term and long-term experiment, respectively. Blood from fish was collected on 24, 48, 72 and 96 h in short term and after 7, 14, 21, and 28 days in long-term experiment. Plasma calcium and phosphate levels were determined at these intervals. After short-term lead exposure, the plasma calcium levels of the fish remained unaffected at 24 h. The levels exhibited a decrease after 48 h which persisted until the end of the experiment (96 h). Following 48 h of lead exposure to the fish, the plasma phosphate levels remained unchanged. The values exhibited a progressive decrease from 72 h onwards. The plasma calcium levels of the fish exposed to lead for 7 days exhibited a decrease. This decrease persisted progressively until the end of the experiment (28 days). The plasma phosphate levels of lead-exposed fish remained unaffected until day 14. The levels decreased progressively from 21 days onwards.
Growth and production performances of crossbred climbing perch koi, Anabas testudineus in Bangladesh  [cached]
A.H.M. Kohinoor
International Journal of Agricultural Research, Innovation and Technology : IJARIT , 2012,
Abstract: The study was performed for evaluating the growth and production performances of crossbred climbing perch (Anabas testudineus) during August to October 2009. The crossbred groups of fish were produced by crossing between native climbing perch and Thai climbing perch (A. testudineus). Growth and production performances was compared at grow out condition between crossbred groups in the two reciprocal crosses of treatments viz. T1: Native climbing perch (♀) × Thai climbing perch (♂) and T2: Thai climbing perch (♀)×Native climbing perch (♂. At the same time, they were compared also with their respective control F1 pure line groups i.e. T3: Native climbing perch (♀) × Native climbing perch (♂) and T4: Thai climbing perch (♀) × Thai climbing perch (♂). It was evident from the results that among the treatments in grow out system, the highest mean harvesting weight was 69.25±9.01 g found in T4 (Thai climbing perch), which was significantly different (P<0.05) from all other treatments. Whereas, T3 (native climbing perch) also showed the lowest mean harvesting weight 33.38±8.74 g and showed significant differences (P<0.05) among all the treatments. The mean harvesting weight of both the crossbred groups i.e. T1 and T2 were 50.83±6.65 and 59.94±7.83 g, respectively and these results were statistically insignificant (P>0.05) between them but significant among all other treatments. The highest (93.60%) and lowest (83.06%) survival rates were observed in Thai koi (T4) and native Koi (T3) parental stocks, respectively. Wider variations in terms of productions performances were observed among the treatments, where the gross production of T1, T2, T3 and T4 were 2,753±96.67, 3,401±73.26, 1,733±168.47 and 4,051±185 kg/ha, respectively. The productions obtained from crossbred groups were at intermediate compared to their control pure line groups. Higher FCR mean value was observed in native control line (T3), while, lower FCR mean value was observed in Thai control line (T4).
Aquaculture Potential of Climbing Perch, Anabas Testudineus, in Brackish Water  [cached]
Walailak Journal of Science and Technology , 2010, DOI: 10.2004/vol7iss1pp15-21
Abstract: Climbing perch, Anabas testudineus, is a freshwater fish species commercially grown in Southeast Asian countries. This study investigated aspects of salinity on hatching viability and growth performance of climbing perch to use as a measure for aquaculture in brackish water. The experiments were carried out under controlled laboratory conditions. The hormonal induction spawned eggs, and farm reared fry fish of an average body weight of 1.51 - 1.54 g were used in this study. The tested media were prepared using fresh seawater diluted with dechlorinated supplied tap water. It was found that hatching rates for the artificially fertilized eggs were 77 - 92 % in salinities of 0 - 4.5 ppt. The LC50 (24 h) was found to be 5.1 ppt. Hatching was not observed in salinities higher than 7.5 ppt. When fry were reared in different salinities for 40 days, they were found to grow best in salinity of 6.9 ppt. Normal growth rates were found in salinities up to 10.2 ppt. The fry stopped growing and gradually died off in salinities higher than 12.4 ppt. This study suggests that brackish water can potentially be used for climbing perch aquaculture. Saline water up to 4 ppt is practical for propagation of the fish. The fry climbing perch may be nurtured in brackish water of 6 - 7 ppt to obtain the best growth performance.
Ultimobranchial gland of freshwater catfish, Heteropneustes fossilis, in response to calcitonin administration
Srivastav, Ajai K.;Singh, Sarita;Mishra, Diwakar;Srivastav, S.K.;
Pesquisa Veterinária Brasileira , 2009, DOI: 10.1590/S0100-736X2009001200002
Abstract: the absence o!!f a hypocalcemic effect of calcitonin (ct) in fishes has been suggested due to exceedingly high plasma levels of ct; the fish may be saturated with respect of circulating ct and therefore unable to respond to exogenously administered ct. earlier it has been suggested that a hypocalcemic action of injected ct may be obscured by changes in the release of endogenous ct and other calcium regulating hormones. in this study we have used artificial freshwater, calcium-deficient freshwater and calcium-rich freshwater and injected the fish with ct. the aim behind selecting these media were (i) in calcium-deficient medium there would be reduced circulating levels of ct, (ii) in calcium-rich medium there would be diminished secretion of prolactin (this hormone is hypercalcemic in fish), and (iii) by keeping the fish in calcium-rich medium we can test the antihypercalcemic action of ct. moreover, the present study would reveal the changes in the ultimobranchial gland (ubg) after keeping the fish in all the above three media and/or injecting the fish with ct. freshwater catfish, heteropneustes fossilis, were administered intraperitoneally daily with vehicle or 0.5 u/100g body wt of salmon calcitonin (ct) and kept in artificial freshwater, calcium-rich freshwater and calcium-deficient freshwater for 10 days. blood samples were collected on 1, 3, 5, and 10 days following the treatment and analyzed for serum calcium levels. the ultimobranchial gland (ubg) was also fixed for histological studies on these intervals. in artificial freshwater there was no change in the serum calcium levels of calcitonin-injected fish. the ultimobranchial gland of calcitonin-injected fish exhibited a progressive decrease in the nuclear volume from day 5 onwards. on day 10 vacuolization in the gland was also noticed. in vehicle-injected fish (control) kept in calcium-rich freshwater hypercalcemia has been noticed which persists till the end of the experiment. in calcitonin-treated fish mai
Chromaffin cell activity in Heteropneustes fossilis exposed to artificial photoperiod  [PDF]
Srivastava S.,Monika Ruhela
Journal of Stress Physiology & Biochemistry , 2012,
Abstract: The study deals with the effect of artificial photoperiod on the interrenal and chromaffin tissues and physiological stress parameters in the teleost, Heteropneustes fossilis. Fishes were exposed to photoperiods of continuous illumination 24L:0D and continuous darkness 0L:24D for a short period (24hrs) and a long period (10 days) following which the histology of the tissues was carried out for morphometric measurements of the interrenal and chromaffin cells and blood was analyzed for the physiological stress parameters (plasma glucose, plasma chloride, plasma protein and N:L ratio). No changes in the physiological variables were observed following any of the treatments for short periods. Plasma glucose, plasma chloride and plasma protein levels increased significantly (p<0.05) following the 24L:0D exposures for ten days. Significantly the interrenal cells showed no noticeable change in size following any of the long term exposures whereas the chromaffin cells were found to be significantly (p<0.05) increased in size after the 0L:24D treatment for long period of ten days. The findings strongly indicate that long exposures to artificial photoperiod activates the chromaffin cells which possibly direct the stress responses. A serotonin mediated activation of the chromaffin tissue is suggested in this catfish known for exhibiting photoperiod dependence in several of its activities.
Effect of Sugarcane Bagasse and Supplemental Feed on Certain Reproductive Characterestics of the Catfish Heteropneustes fossilis (Bloch.)
M.V. Radhakrishnan,E. Sugumaran
Journal of Fisheries International , 2012, DOI: 10.3923/jfish.2010.58.60
Abstract: The present investigation has been conducted to study the reproductive characterestics of the catfish, Heteropneustes fossilis (Bloch.) cultured in sugarcane bagasse substrate medium. Adult H. fossilis (av. wt. 194 g for males and 210 g for females) were reared at 20 tank-1. No feed was provided to the fish in three of the substrate-added tanks (T1) while a pelleted diet was fed to the fish in the remaining three substrate-added tanks (T2) and the other three tanks without substrate (T3). Finding showed that both sexes started to reach maturity after 355 days. The average diameter of the ripened egg was 1.3-1.6 mm. Fecundity varied in different experimental groups in relation to fish weight and feeding. Compared to supplemental feed (T3) and in combination with sugarcane bagasse (T2), sugarcane bagasse alone group (T1) showed a positive relationship in all the parameters. These results showed that sugarcane bagasse can effectively be use as a substrate for the culture of the catfish Heteropneustes fossilis.
Some aspects in early life stage of climbing perch, Anabas testudineus larvae  [PDF]
Thumronk Amornsakun,Wasan Sriwatana,Ponpanom Promkaew
Songklanakarin Journal of Science and Technology , 2005,
Abstract: The sexual maturity of female climbing perch, Anabas testudineus was studied by determining fecundity and gonadosomatic index (GSI). It was found that the size at sexual maturity of female climbing perch was 15.20±1.24 cm (mean±SD) in total length and 61.10±17.32 g in body weight. The eggs were floating and rounded. The fertilized eggs had a diameter of 830±39 μm. The fecundity was 24,120.5±3,328.24 ova/ fish and gonadosomatic index (GSI) was 10.4±2.5%. Newly hatched larvae of climbing perch were produced by induced spawning using chemical injection (Suprefact and Motilium). The sexually mature fishes were cultured in fiber-glass tank (water volume 300 liters) with the ratio of male and female brooders 2:1. The fertilization rate, hatching out and hatching rate experiments were carried out using a 15-liter glass aquarium (water volume 10 liters) containing 7,000-9,000 eggs. It was found that the eggs were floating and rounded. The fertilized eggs had a diameter of 830±39 μm. The average fertilization rate was 92.67%, hatching out was 20 hr 30 min and average hatching rate was 87.44% at a water temperature of 27.0-30.5oC. Sampling of the newly-hatched larvae was done at 2-hour intervals, when 20 of them were randomly taken and preserved in 10% buffered formalin for later deter-mination of yolk absorption time. Observation using a microscope revealed that newly hatched larvae were 2.02±0.20 mm in total length and had yolk sacs of 111.33±46.19 mm3 in volume. The yolk sacs were completely absorbed within 92 hr after hatching at a water temperature of 27.0-30.5oC. Up until full mouth development (start of feeding), 2-hourly samplings of twenty newly hatched larvae were taken from an aquarium for observation of the size of mouth opening. All the larvae had open mouths about 28 hr after hatching (2.95±0.59 mm TL), with the mouths measuring 328.42±32.23 mm in height. The feeding experiments were carried out using a 15-liter glass aquarium (water volume 10 liters) containing 1,000 larvae aged 1 days post-hatching (just before the mouth opened). They were fed with rotifer at a density of 10 ind/ml. Twenty larvae were collected at random from the aquarium at 2-hourly intervals, preserved in 10% buffered formalin, and then dissected to determine the presence of rotifer in the digestive tract. The digestive tracts were fixed at 32 hr of hatching at water temperatures of 27.0-30.5oC, and measured477.63±47.80 mm in mouth height. The average number of rotifer in the digestive tract at the start of feeding was 1.50 individual/larva. A starvation experiment was carried ou
Acute Toxicity Of Euphorbia Royleana Boiss (Euphorbiaceae) latex on freshwater catfish, Heteropneustes Fossilis (Siluriformes, Heteropneustidae)
ManiRam,Prasad; Abhishek,Kumar; Diwakar,Mishra; Sunil K,Srivastav; Ajai K,Srivastav;
Acta toxicol?3gica argentina , 2010,
Abstract: an acute toxicity test was performed by using a four-day static renewal test to determine the lc50 value of aqueous extract of euphorbia royleana latex for the freshwater fsh, heteropneustes fossilis. the lc50 values, their upper and lower confdence limits and slope functions were calculated. the lc50 values for aqueous extract of euphorbia royleana latex at various exposure periods were 7.758 mg/l for 24 h, 5.847 mg/l for 48 h, 4.474 mg/l for 72 h and 3.090 mg/l for 96 h. the regression coeffcient showed that there was signifcant negative correlation between exposure time and different lc values. hence, it is concluded that the concentration to produce toxicity of latex of euphorbia royleana is comparable and close to the concentration to produce toxicity of synthetic organophosphates pesticides for the fsh h. fossilis. therefore, adequate precautions must be taken when euphorbia royleana latex is being used near fsh- inhabited areas.
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