WBUAFS

Kolkata, India
Kolkata, India
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Dora K.C.,WBUAFS | Talwar N.A.,WBUAFS
Indian Journal of Marine Sciences | Year: 2013

Size selection studies for threadfin breams were carried out with square shape meshed cod-ends of 20, 30 and 40 mm mesh size at high opening bottom trawl (HOBT). Results were compared with conventional HOBT. Experiments were conducted at depth of 40-90 meter off Mangalore from September 2003 to May 2004. Results revealed that fish measuring more than 15 cm contributed to the highest percentage of total catch (40%) followed by 10-15 cm group (33.2%) and 15.3% of the size group of 5-10 cm. Fish measuring less than 5 cm contributed to an average of 11.5% to the total catch. Size selectivity of threadfin breams showed that the high peak frequencies in HOBT with diamond-meshed codend than that of square meshed cod ends. When compare the catches, the bigger sized are more valued fishes which are retained in the square mesh cod-end.


Ray M.,AICRP on Integrated Farming Systems | Roy D.C.,WBUAFS | Haldar P.,AICRP on Integrated Farming Systems | Choudhury N.B.,AICRP on Integrated Farming Systems | Sahoo P.K.,BCKV
Indian Journal of Ecology | Year: 2014

A farmers' participatory field experiment with four different rice-based cropping systems was conducted during 2011-12 and 2012-13 in coastal saline zone of West Bengal. Due to low land agro-ecosystem, conventionally farmers grow long duration high yielding varieties of rice during wet season and keep their land either fallow or marginally growing some low water requiring crops in dry season (rabi and summer) using residual moisture or life saving irrigation. This study was aimed to evaluated profitability and resource use efficiency of rice-greengram, rice - sunflower, rice - sunflower + greengram and rice - lady's finger cropping systems. Rice - lady's finger cropping system recorded significantly higher yield of rice grain (4,617.04 kg ha-1) and straw (6,605.11 kg ha-1), system equivalent yield (28,080.17 kg ha-1) and productivity (78.01 kg ha-1 day-1). The highest net return (Rs. 1,44,600 ha-1) and B:C ratio (2:24) were also obtained in rice - lady's finger cropping system, followed by rice - sunflower. Rice - sunflower cropping system recorded significantly higher phosphate and potash uptake, however, regarding nitrogen uptake the same was at par with rice - lady's finger system. Higher land use efficiency, irrigation water use efficiency, energy output and employment generation were registered with rice - lady's finger system followed by rice - sunflower.


Mukhopadhyaya S.K.,WBUAFS
Toxicology and Industrial Health | Year: 2012

A subacute toxicity study of acetamiprid was undertaken in 72 female Wistar rats randomly divided into four groups (18 each). Acetamiprid was administered orally at the dose rate of 0, 25, 100 and 200 mg/kg of body weight to rats of groups I, II, III and IV, respectively. Group I served as control. Calcium, phosphorous, sodium, potassium, chloride, zinc, copper, iron and cobalt concentrations in plasma were significantly (p ≥ 0.05) increased in acetamiprid administered groups. However, no alteration was observed in plasma manganese concentration in acetamiprid-treated rats. The repeated oral toxicity study on acetamiprid in present investigation suggested that it has toxic potential and it is a high-risk insecticide. © The Author(s) 2011.


Nath S.,Rgkar Medical College And Hospital | Bandyopadhyay S.K.,Director of Medical Education | Mandal T.K.,WBUAFS | Das A.K.,Rgkar Medical College And Hospital
Toxicology and Environmental Health Sciences | Year: 2016

Arsenic poisoning is one of the major causes of chronic human illness and mortality in Bengal Delta plain with limited treatment option. The present study was conducted to evaluate the ameliorating effect of Bauhinia acuminata L (Leguminosae: Caesalpinioideae) stem-bark powder against sodium arsenite (NaAsO2) induced toxicity. Forty eight adult albino rats were divided into four groups viz., D0, D1, D2 and D3. Sodium arsenite was administered @4 mg/kg daily in drinking water in groups D1, D2 and D3 for 90 days; control group (D0) received water for 120 days. The D1 group of animals received water, instead of arsenic during 91-120 days, while rats of group D2 and D3 were orally treated with stem bark powder @350 mg/kg (1/10 th dose of LD50) and 175 mg/kg (1/20 th dose of LD50) respectively daily during the period. Analysis of arsenic concentrations in tissue samples, hair and faeces showed that treatment with B. acuminata stem bark powder significantly (p<0.05) reduced arsenic accumulation in tissues, hair and in faeces. A significantly (p<0.05) higher organo-arsenic fraction and lower arsenite and arsenate fractions was also observed in B. acuminata stem bark powder treated group (D2 and D3). The study showed that oral treatment with B. acuminata stem bark powder could ameliorate induced arsenicosis. © 2016, Korean Society of Environmental Risk Assessment and Health Science and Springer Science+Business Media Dordrecht.


Bandyopadhyay S.K.,Director of Medical Education | Mandal T.K.,WBUAFS | Das A.K.,Rgkar Medical College And Hospital | Mishra A.,WBUAFS
International Journal of Pharma and Bio Sciences | Year: 2016

Arsenic poisoning is one of the major causes of chronic human illness and mortality in Bengal Delta plain with limited treatment options. The present study was conducted to evaluate the ameliorating effect of Glycosmis pentaphylla (Rutaceae) leaf extract against sodium arsenite (NaAsO2) induced toxicity. Forty eight adult albino rats were divided into four groups viz., G0, G1, G2 and G3. Sodium arsenite was administered @ 4mg/kg daily in drinking water in groups G1, G2 and G3 for 90 days; the control group (G0) received water for 120 days. The G1 group of animals received water, instead of arsenic during 91-120 days, while rats of group G2 and G3 were orally treated with plant leaf extract at 320 mg/kg (1/10th LD50) and 160 mg/kg (1/20th LD50) respectively daily during the period. Analysis of arsenic concentrations in tissue samples, hair and faeces showed that treatment with G. pentaphylla leaf extract significantly (p < 0.05) reduced arsenic accumulation in tissues, hair and in faeces. A significantly (p < 0.05) higher organo-arsenic fraction and lower arsenite and arsenate fraction was also observed in G. pentaphylla leaf extract treated group(G2 & G3). The study showed that oral treatment with G. pentaphylla leaf extract could ameliorate induced arsenicosis.


PubMed | Indian Veterinary Research Institute and WBUAFS
Type: Journal Article | Journal: Microbial drug resistance (Larchmont, N.Y.) | Year: 2016

The present investigation was carried out to study the vancomycin resistance pattern of Staphylococcus aureus isolates (n=274) obtained from 352 milk samples of bovine (269) and caprine (63) clinical and subclinical mastitis from different districts of West Bengal, India. Of them, seven isolates (vancomycin-resistant S. aureus [VRSA] 1-7) exhibited resistance to vancomycin. Minimum inhibitory concentration of vancomycin (MIC


Mukherjee J.,WBUAFS | De K.,ICAR Central Sheep and Wool Research Institute | Chaudhury M.,Government of West Bengal | Dang A.K.,National Dairy Research Institute
Biological Rhythm Research | Year: 2015

Immunity of mammary gland in terms of in vitro activity of milk leukocytes has been evaluated during hot-humid, summer, and winter season in elite (n = 10) and non-elite (n = 10) crossbred cows. Milk samples were collected from all the cows throughout the year at 15-day interval. Milk somatic cell counts (SCC) and differential leukocyte counts (DLC) were evaluated microscopically. Milk neutrophils, macrophages, and lymphocytes were isolated and cultured in vitro. In vitro PI of milk neutrophils and macrophages was evaluated by colorimetric NBT (nitro-blue tetrazolium) reductive assay. Mitogen-induced milk lymphocyte blastogenic response was measured by colorimetric MTT (thiazolyl blue tetrazolium bromide) assay. Milk SCC was found to be significantly (p < 0.01) higher in elite cows compared to non-elite cows irrespective of season. There was significant (p < 0.05) increase in milk SCC during hot-humid season compared to winter season in both the group of the cows. There was no significant difference between group and season in terms of DLC. In vitro phagocytic index of elite cows was significantly (p < 0.01) higher than non-elite cows. The phagocytic index was significantly (p < 0.01) decreased in summer and hot-humid season compared to winter season in both the group of animals. Macrophages isolated from elite cows having significantly (p < 0.01) lower phagocytic index than non-elite cows which significantly (p < 0.01) decreased during summer and hot-humid season compared to winter. In vitro milk lymphocyte proliferative response was significantly (p < 0.01) lower in elite cows. Activity of B-lymphocytes decreased significantly (p < 0.01) during summer and hot-humid season than winter, but activity of T-lymphocytes remains unaltered during different seasons. In conclusion, the mammary immunity in terms of in vitro activity of milk leukocytes is compromised during summer and hot-humid season in elite crossbred cows; therefore, better care and management should be taken in high-yielding cows during summer and hot-humid season to minimize intramammary infections. © 2015 Taylor & Francis.


Mukherjee J.,WBUAFS | Mallick S.,National Dairy Research Institute | Chaudhury M.,Government of West Bengal | Prakash B.S.,ADG | Dang A.K.,National Dairy Research Institute
Biological Rhythm Research | Year: 2015

Infradian rhythmicity in milk leukocyte activity together with plasma cortisol and prolactin levels throughout the lactation period in high-yielding crossbred cows has been studied in 10 high-yielding (milk production: 5000 l per lactation) Karan Fries crossbred (Holstein Friesian × Tharparkar) cows. Milk and blood samples were collected from all the experimental animals. Isolation of milk phagocytes (neutrophils and macrophages) and lymphocytes were done by density gradient centrifugation. In vitro phagocytic index of milk neutrophils and macrophages was performed by colorimetric NBT reductive assay. Mitogen-induced milk lymphocyte blastogenic response was estimated by colorimetric MTT (tetrazolium) assay. Total plasma cortisol and prolactin were estimated by enzyme immune assay. Highest value of plasma cortisol and prolactin was observed at calving which decreased significantly (p < 0.01) on 15th day postpartum for both prolactin and cortisol. Immune activity of milk leukocytes was highest on day 0 colostrum and decreased significantly (p < 0.01) on 7th day postpartum. A significant (p < 0.01) rise of plasma prolactin was observed around 135th and 225th days postpartum, whereas a peak level of plasma cortisol was observed at 105th, 180th, and 270th days postpartum. Phagocytic index of milk neutrophils and macrophages remains almost in a steady state during mid-lactation period (between 100 and 200 days postpartum). A decline in increasing trend of milk phagocytic activity was observed during late lactation. Mitogen-induced milk lymphocyte blastogenic response was highest on day 0 colostrum which decreased significantly (p < 0.01) on 15th day postpartum. Con A-induced milk lymphocyte blastogenic response showed an increasing trend from 120th to 210th days postpartum. Upon correlation study, it showed that the plasma cortisol has a negative effect on milk leukocyte activity, while prolactin has a positive effect, though the effect is lactation stage specific. © 2015 Taylor and Francis.


Rajkumar V.,ICAR Central Institute for Research on Goats | Verma A.K.,ICAR Central Institute for Research on Goats | Patra G.,WBUAFS | Pradhan S.,WBUAFS | And 3 more authors.
Asian-Australasian Journal of Animal Sciences | Year: 2016

Aloe vera has been used worldwide for pharmaceutical, food, and cosmetic industries due to its wide biological activities. However, quality improvement of low fat meat products and their acceptability with added Aloe vera gel (AVG) is scanty. The aim of this study was to explore the feasibility of using fresh AVG on physicochemical, textural, sensory and nutritive qualities of goat meat nuggets. The products were prepared with 0%, 2.5%, and 5% fresh AV G replacing goat meat and were analyzed for proximate composition, physicochemical and textural properties, fatty acid profile and sensory parameters. Changes in lipid oxidation and microbial growth of nuggets were also evaluated over 9 days of refrigerated storage. The results showed that AV G significantly (p<0.05) decreased the pH value and protein content of meat emulsion and nuggets. Product yield was affected at 5% level of gel. Addition of AV G in the formulation significantly affected the values of texture profile analysis. The AV G reduced the lipid oxidation and microbial growth in nuggets during storage. Sensory panelists preferred nuggets with 2.5% AV G over nuggets with 5% AVG. Therefore, AV G up to 2.5% level could be used for quality improvement in goat meat nuggets without affecting its sensorial, textural and nutritive values. Copyright © 2016 by Asian-Australasian Journal of Animal Sciences.


Bordoloi R.,WBUAFS | Muzaddadi A.U.,Central Institute of Post Harvest Engineering and Technology ICAR
Indian Journal of Traditional Knowledge | Year: 2015

Indigenous Technical Knowledge has been the key rescuer of the fishers and common people of Dhemaji district of Assam, India from frequent floods in the region every year. They utilize the existing resources with a sustainable eco-friendly approach towards disaster management and exploration of fisheries resources and co-exist with the usual floods in the region. This study was conducted in the region through PRA after interviewing 110 fishers of three most flood-prone development blocks of the district with the help of an interview questionnaire. ITKs associated with the early warning of flood, construction of flood-safe fish ponds for flooded regions and post flood situation, modified fishing methods, fishing gear and fish preservation methods best suited to the flood situation developed by the people of the district are compiled and documented. People of the region traditionally use different meteorological signs, weather status along with animal behavior as early signal of flood and heavy rain. In order to face devastating floods which occur 2-3 times a year, the farmers constructed smaller ponds (<0.2 ha) for facilitating easy maintenance against flood inundation with tall and wide dykes and strengthening them with turfing and plantation. Fish harvesting techniques were modified in several occasions and preservation of bulk catch was done with innovative techniques for future consumption including combination of drying and smoking in household oven and development of products in combination with vegetables. © 2015, National Institute of Science Communication and Information Resources (NISCAIR). All rights reserved.

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