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Author S. Rai |
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Refine your search Apply to external sourcesDiversity and marketing of dried fish products in Nepal / N. Pradhan in Journal of Agriculture and Forestry University, Volume 1 (2017)
Title : Diversity and marketing of dried fish products in Nepal Material Type: printed text Authors: N. Pradhan, Author ; M. K. Shrestha, Author ; S. Rai, Author ; D. K. Jha, Author ; Sanjit Kumar Saha, Author Publication Date: 2017 Article on page: 139-152 p. Languages : English (eng) Keywords: Sun-dried, smoked, consumer’s preference, market channels Abstract: Various dried fish products are available in Nepalese markets. The information on diversity and
marketing system of dried fish products in the country is scanty. Survey on dried fish was carried
out in 19 districts to elucidate the species diversity, market channels and consumer’s preference
of dried fish. Exotic species such as Harpodon nehereus, Penaeus spp., Stolephorus spp. imported
from several Asian countries shares approximately 70 percent of the dried fish market of the country.
The dried fish products available in the market are in the form of sun-dried, smoked, spicy instant
fish and fish pickle. Marketing system of dried fish varies for indigenous captured fish, cultured fish
and imported fish. Price of dried fish varied greatly being high in rainy season associated with short
supply and increased demand, and relatively low during winter months because of excess supply.
Survey findings indicated that consumer’s preference on dried fish species is different with their
different believes, traditional knowledge and eco-region. However, quality of dried fish available
in market is a concernLink for e-copy: https://afu.edu.np/sites/default/files/Diversity_and_marketing_of_dried_fish_pro [...]
in Journal of Agriculture and Forestry University > Volume 1 (2017) . - 139-152 p.[article] Diversity and marketing of dried fish products in Nepal [printed text] / N. Pradhan, Author ; M. K. Shrestha, Author ; S. Rai, Author ; D. K. Jha, Author ; Sanjit Kumar Saha, Author . - 2017 . - 139-152 p.
Languages : English (eng)
in Journal of Agriculture and Forestry University > Volume 1 (2017) . - 139-152 p.
Keywords: Sun-dried, smoked, consumer’s preference, market channels Abstract: Various dried fish products are available in Nepalese markets. The information on diversity and
marketing system of dried fish products in the country is scanty. Survey on dried fish was carried
out in 19 districts to elucidate the species diversity, market channels and consumer’s preference
of dried fish. Exotic species such as Harpodon nehereus, Penaeus spp., Stolephorus spp. imported
from several Asian countries shares approximately 70 percent of the dried fish market of the country.
The dried fish products available in the market are in the form of sun-dried, smoked, spicy instant
fish and fish pickle. Marketing system of dried fish varies for indigenous captured fish, cultured fish
and imported fish. Price of dried fish varied greatly being high in rainy season associated with short
supply and increased demand, and relatively low during winter months because of excess supply.
Survey findings indicated that consumer’s preference on dried fish species is different with their
different believes, traditional knowledge and eco-region. However, quality of dried fish available
in market is a concernLink for e-copy: https://afu.edu.np/sites/default/files/Diversity_and_marketing_of_dried_fish_pro [...]
Title : Effectiveness of different measures to control red bloom in carp ponds Material Type: printed text Authors: R. B. Mandal, Author ; S. Rai, Author ; M. K. Shrestha, Author ; D. K. Jha, Author ; N. P. Pandit, Author Publication Date: 2022 Article on page: 139-147 p. Languages : English (eng) Keywords: Euglena sanguinea, phytoplankton, mitigation, fish production Abstract: Red blooms caused by Euglena sanguinea (Ehrenberg, 1832) might cause severe depletion of dissolved oxygen
significantly in the pond. An experiment was conducted to assess the effects of measures for controlling E.
sanguinea on water quality, growth and yield of carp polyculture. The experiment included four treatments:
without mitigation measure (T1), skimming using net skimmer (T2), fertilization with urea and diammonium
phosphate (T3) and liming using agriculture lime (T4) with three replications. The experiment was carried out
for 120 days. The results showed that abundance of E. sanguinea was significantly lower (p diammonium phosphate treated ponds (270 ± 10 cells L-1) than control ponds (1650 ± 90 cells L-1). Water quality
parameter such as nitrite, total nitrogen and total phosphorus were significantly (p ponds (T1) than in treatment ponds. The net fish yield of rohu was significantly higher (0.19 ± 0.0 t ha-1) in T3
ponds than T2 ponds (0.07 ± 0.0 t ha-1). The present experiment effectively controlled abundance of E. sanguinea
but admixture of urea and diammonium phosphate application appeared to be better control measures because
dissolved oxygen content was at acceptable level in the ponds.Link for e-copy: https://afu.edu.np/sites/default/files/Effectiveness_of_different_measures_to_co [...]
in Journal of Agriculture and Forestry University > Volume 5 (2022) . - 139-147 p.[article] Effectiveness of different measures to control red bloom in carp ponds [printed text] / R. B. Mandal, Author ; S. Rai, Author ; M. K. Shrestha, Author ; D. K. Jha, Author ; N. P. Pandit, Author . - 2022 . - 139-147 p.
Languages : English (eng)
in Journal of Agriculture and Forestry University > Volume 5 (2022) . - 139-147 p.
Keywords: Euglena sanguinea, phytoplankton, mitigation, fish production Abstract: Red blooms caused by Euglena sanguinea (Ehrenberg, 1832) might cause severe depletion of dissolved oxygen
significantly in the pond. An experiment was conducted to assess the effects of measures for controlling E.
sanguinea on water quality, growth and yield of carp polyculture. The experiment included four treatments:
without mitigation measure (T1), skimming using net skimmer (T2), fertilization with urea and diammonium
phosphate (T3) and liming using agriculture lime (T4) with three replications. The experiment was carried out
for 120 days. The results showed that abundance of E. sanguinea was significantly lower (p diammonium phosphate treated ponds (270 ± 10 cells L-1) than control ponds (1650 ± 90 cells L-1). Water quality
parameter such as nitrite, total nitrogen and total phosphorus were significantly (p ponds (T1) than in treatment ponds. The net fish yield of rohu was significantly higher (0.19 ± 0.0 t ha-1) in T3
ponds than T2 ponds (0.07 ± 0.0 t ha-1). The present experiment effectively controlled abundance of E. sanguinea
but admixture of urea and diammonium phosphate application appeared to be better control measures because
dissolved oxygen content was at acceptable level in the ponds.Link for e-copy: https://afu.edu.np/sites/default/files/Effectiveness_of_different_measures_to_co [...]
Title : Effects of sunlight on the abundance of Euglenophyceae in earthen ponds | R. B. Mandal, S. Rai, M. K. Shrestha, D. K. Jha, and N. P. Pandit Material Type: printed text Authors: R. B. Mandal, Author ; S. Rai, Author ; M. K. Shrestha, Author ; D. K. Jha, Author ; N. P. Pandit, Author Publication Date: 2020 Article on page: 289-294 p. Languages : English (eng) Keywords: Red bloom, Euglena sanguinea, dynamics, light intensity, density Abstract: Algal red bloom in carp ponds has been a serious concern to farmers due its scum covering the entire pond surface area
during the day and disappearing in the evening. Thus it is important to examine the effects of sunlight on dynamics of red
bloom algae in ponds. An experiment was done with the use of three treatments, i) non-red bloom pond with sunlight, ii),
red bloom pond with sunlight, and iii) red bloom pond without sunlight; each treatment was replicated thrice. Density
of Euglenophyceae was assessed from two different water depths (10 cm and 50 cm) at three different times: morning,
afternoon, and evening. Results showed that Euglena sanguinea Ehrenberg, 1832 was dominant among euglenophytes and
it showed vertical and temporal migration with sunlight intensity. Density of E. sanguinea was significantly higher (p at 10 cm and lower (p Euglenophyceae and E. sanguinea by 69% and 80%, respectively. Maximum red bloom was observed during 12.00 to 13.00
hours, when light intensity was highest (1928 Lux to 1988 Lux). Appearance and disappearance of red bloom in the pond
was due to vertical migration of E. sanguinea with sunlight intensity.Link for e-copy: https://afu.edu.np/sites/default/files/Effects%20of%20sunlight%20on%20the%20abun [...]
in Journal of Agriculture and Forestry University > Volume 4 (2020) . - 289-294 p.[article] Effects of sunlight on the abundance of Euglenophyceae in earthen ponds | R. B. Mandal, S. Rai, M. K. Shrestha, D. K. Jha, and N. P. Pandit [printed text] / R. B. Mandal, Author ; S. Rai, Author ; M. K. Shrestha, Author ; D. K. Jha, Author ; N. P. Pandit, Author . - 2020 . - 289-294 p.
Languages : English (eng)
in Journal of Agriculture and Forestry University > Volume 4 (2020) . - 289-294 p.
Keywords: Red bloom, Euglena sanguinea, dynamics, light intensity, density Abstract: Algal red bloom in carp ponds has been a serious concern to farmers due its scum covering the entire pond surface area
during the day and disappearing in the evening. Thus it is important to examine the effects of sunlight on dynamics of red
bloom algae in ponds. An experiment was done with the use of three treatments, i) non-red bloom pond with sunlight, ii),
red bloom pond with sunlight, and iii) red bloom pond without sunlight; each treatment was replicated thrice. Density
of Euglenophyceae was assessed from two different water depths (10 cm and 50 cm) at three different times: morning,
afternoon, and evening. Results showed that Euglena sanguinea Ehrenberg, 1832 was dominant among euglenophytes and
it showed vertical and temporal migration with sunlight intensity. Density of E. sanguinea was significantly higher (p at 10 cm and lower (p Euglenophyceae and E. sanguinea by 69% and 80%, respectively. Maximum red bloom was observed during 12.00 to 13.00
hours, when light intensity was highest (1928 Lux to 1988 Lux). Appearance and disappearance of red bloom in the pond
was due to vertical migration of E. sanguinea with sunlight intensity.Link for e-copy: https://afu.edu.np/sites/default/files/Effects%20of%20sunlight%20on%20the%20abun [...]
Title : Growth performance of different fish species during dry period in Chitwan, Nepal Material Type: printed text Authors: P. Neupane, Author ; S. Rai, Author ; H. Kafle, Author ; R, Ranjan, Author Publication Date: 2022 Article on page: 177-185 p. Languages : English (eng) Keywords: Carp, common carp, Nile tilapia, drought, yield Abstract: In order to assess the growth and yield of different fish species during dry period, an experiment was conducted
in the Aquaculture Farm of Agriculture and Forestry University, Rampur, Chitwan from 1 April to 10 July,
2021. The experiment included three treatments: T1 (Carp polyculture), T2 (Common carp Cyprinus carpio
monoculture) and T3 (Nile tilapia Oreochromis niloticus monoculture), each with three replications. Silver carp
(Hypophthalmichthys molitrix 7%), Bighead carp (Aristichthys nobilis 20%), Grass carp (Ctenopharyngodon
idella 13%), Rohu (Labeo rohita 30%), Mrigal (Cirrhinus mrigala 10%) and Common carp (20%) were stocked
at densities of 1,400, 4,000, 2,600, 4,000, 6,000 and 2,000 fish/ha, respectively. Stocking density of Common
carp and Nile tilapia was 20,000 fish/ha. Fish were fed with sinking pellet (28% crude protein) at the rate of
3% of body weight. Gross and net fish yield was significantly higher in T3 (89.89±0.67 t/ha/yr,16±0.25 t/ha/
yr) than in T2 (4.88±0.38 t/ha/yr, 4.05±0.35 t/ha/yr) due to higher (p in T2 (40.6±4.5 %). Gross margin was significantly higher in T3 (1,257,482±186,600 NRs./ha/yr) than in T2
(434,250±124,753 NRs./ha/yr). Based on higher survival, yield and gross margin, Nile tilapia monoculture is
suitable for dry season.Link for e-copy: https://afu.edu.np/sites/default/files/Growth_performance_of_different_fish_spec [...]
in Journal of Agriculture and Forestry University > Volume 5 (2022) . - 177-185 p.[article] Growth performance of different fish species during dry period in Chitwan, Nepal [printed text] / P. Neupane, Author ; S. Rai, Author ; H. Kafle, Author ; R, Ranjan, Author . - 2022 . - 177-185 p.
Languages : English (eng)
in Journal of Agriculture and Forestry University > Volume 5 (2022) . - 177-185 p.
Keywords: Carp, common carp, Nile tilapia, drought, yield Abstract: In order to assess the growth and yield of different fish species during dry period, an experiment was conducted
in the Aquaculture Farm of Agriculture and Forestry University, Rampur, Chitwan from 1 April to 10 July,
2021. The experiment included three treatments: T1 (Carp polyculture), T2 (Common carp Cyprinus carpio
monoculture) and T3 (Nile tilapia Oreochromis niloticus monoculture), each with three replications. Silver carp
(Hypophthalmichthys molitrix 7%), Bighead carp (Aristichthys nobilis 20%), Grass carp (Ctenopharyngodon
idella 13%), Rohu (Labeo rohita 30%), Mrigal (Cirrhinus mrigala 10%) and Common carp (20%) were stocked
at densities of 1,400, 4,000, 2,600, 4,000, 6,000 and 2,000 fish/ha, respectively. Stocking density of Common
carp and Nile tilapia was 20,000 fish/ha. Fish were fed with sinking pellet (28% crude protein) at the rate of
3% of body weight. Gross and net fish yield was significantly higher in T3 (89.89±0.67 t/ha/yr,16±0.25 t/ha/
yr) than in T2 (4.88±0.38 t/ha/yr, 4.05±0.35 t/ha/yr) due to higher (p in T2 (40.6±4.5 %). Gross margin was significantly higher in T3 (1,257,482±186,600 NRs./ha/yr) than in T2
(434,250±124,753 NRs./ha/yr). Based on higher survival, yield and gross margin, Nile tilapia monoculture is
suitable for dry season.Link for e-copy: https://afu.edu.np/sites/default/files/Growth_performance_of_different_fish_spec [...]
Title : Performance of locally formulated low cost feeds for rearing rainbow trout (Oncorhynchus mykiss walbaum, 1792) fry in Nepal Material Type: printed text Authors: G. B. Gurung, Author ; S. Rai, Author ; A. P. Nepal, Author ; K. Gharti, Author Publication Date: 2020 Article on page: 173-179 p. Languages : English (eng) Keywords: Shrimp, stinging nettle, silkworm, survival, feed cost Abstract: Rainbow trout (Oncorhynchus mykiss Walbaum, 1792) farming is the only promising cold water aquaculture in Nepal, but its
farming is constrained by availability of quality and quantity of feed. An experiment was done to evaluate the performance
of locally formulated low cost nutritious feeds for rainbow trout fry at Fisheries Research Center, Trishuli for 3 months.
The experiment included four treatments i) T1- control, shrimp based feed, ii) T2 - shrimp+amino acids based feed, iii) T3 -
shrimp+stinging nettle based feed, and iv) T4 - silkworm based feed. Each treatment was replicated thrice. Fry was stocked
in raceways of 1 m2
at 200 fry/m2
density and fed at the satiation for 6 times in a day from 7.00 am to 5.00 pm. Proximate
analysis showed that crude protein was 42.8% in T1, 42.0% in T2, 41.7% in T3 and 39.8% in T4 feeds. Growth of fry and
food conversion ratio were significantly better (p respective feeds while feed cost was significantly (p and gross margin T1 feed was found to be better among experimental feeds.Link for e-copy: https://afu.edu.np/jafu
in Journal of Agriculture and Forestry University > Volume 3 (2019) . - 173-179 p.[article] Performance of locally formulated low cost feeds for rearing rainbow trout (Oncorhynchus mykiss walbaum, 1792) fry in Nepal [printed text] / G. B. Gurung, Author ; S. Rai, Author ; A. P. Nepal, Author ; K. Gharti, Author . - 2020 . - 173-179 p.
Languages : English (eng)
in Journal of Agriculture and Forestry University > Volume 3 (2019) . - 173-179 p.
Keywords: Shrimp, stinging nettle, silkworm, survival, feed cost Abstract: Rainbow trout (Oncorhynchus mykiss Walbaum, 1792) farming is the only promising cold water aquaculture in Nepal, but its
farming is constrained by availability of quality and quantity of feed. An experiment was done to evaluate the performance
of locally formulated low cost nutritious feeds for rainbow trout fry at Fisheries Research Center, Trishuli for 3 months.
The experiment included four treatments i) T1- control, shrimp based feed, ii) T2 - shrimp+amino acids based feed, iii) T3 -
shrimp+stinging nettle based feed, and iv) T4 - silkworm based feed. Each treatment was replicated thrice. Fry was stocked
in raceways of 1 m2
at 200 fry/m2
density and fed at the satiation for 6 times in a day from 7.00 am to 5.00 pm. Proximate
analysis showed that crude protein was 42.8% in T1, 42.0% in T2, 41.7% in T3 and 39.8% in T4 feeds. Growth of fry and
food conversion ratio were significantly better (p respective feeds while feed cost was significantly (p and gross margin T1 feed was found to be better among experimental feeds.Link for e-copy: https://afu.edu.np/jafu
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