Author details
Author D. K. Jha |
Available item(s) by this author (4)
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 : Supply chain analysis of carp in Makwanpur, Chitwan and Nawalparasi districts of Nepal Material Type: printed text Authors: K. Adhikari, Author ; S. Rai, Author ; D. K. Jha, Author ; R. B. Mandal, Author Publication Date: 2018 Article on page: 205-210 P. Languages : English (eng) Keywords: Price, variable cost, profit, farmer, middleman Abstract: Carp is the major fish produced and imported in Nepal. It is imperative to establish sustainable and
effective supply chains of carp to develop aquaculture industry in Nepal. In order to assess role of
key actors involved and to analyse the existing supply chains of carp, a study was carried out in
Makwanpur, Chitwan and Nawalparasi districts of Nepal during May to September, 2016. A total of
102 respondents (20 grow out farmers, 3 middleman, 3 wholesalers, 3 retailers, and 5 consumers in
each district) were selected randomly for household survey from all three districts. Data were collected
by using set of pre-tested questionnaire by employing face to face survey with the respondents.
Data were analysed by using One Way Anova followed by Duncan's Multiple Range Test. Findings
revealed that grow out farmer, middleman, wholesaler, retailer and consumer are key actors to govern
existing supply chains of carp. There are upto seven types of supply chains of fresh carp and four
types of supply chains of live carp in three districts. Supply chain of live carp is comparatively shorter
with three actors than fresh carp supply chain to minimize fish loss due to handling stress. Grow out
farmers in Nawalparasi earned significantly (p Makwanpur, due to higher selling price and low variable costs incurred. In live carp supply chain,
middle man received higher margin (34-36%) whereas in fresh carp chain, retailers earned higher
profit in Makwanpur (50%) and Nawalparasi (56%), and middleman, in Chitwan (50%). Although
supply chain of live carp is found to be more profitable, but it is risky and not sustainable at the
moment. Therefore, supply chain of fresh carp needs to be strengthened.Link for e-copy: https://afu.edu.np/sites/default/files/Supply_chain_analysis_of_carp_in_Makwanpu [...]
in Journal of Agriculture and Forestry University > Volume 2 (2018) . - 205-210 P.[article] Supply chain analysis of carp in Makwanpur, Chitwan and Nawalparasi districts of Nepal [printed text] / K. Adhikari, Author ; S. Rai, Author ; D. K. Jha, Author ; R. B. Mandal, Author . - 2018 . - 205-210 P.
Languages : English (eng)
in Journal of Agriculture and Forestry University > Volume 2 (2018) . - 205-210 P.
Keywords: Price, variable cost, profit, farmer, middleman Abstract: Carp is the major fish produced and imported in Nepal. It is imperative to establish sustainable and
effective supply chains of carp to develop aquaculture industry in Nepal. In order to assess role of
key actors involved and to analyse the existing supply chains of carp, a study was carried out in
Makwanpur, Chitwan and Nawalparasi districts of Nepal during May to September, 2016. A total of
102 respondents (20 grow out farmers, 3 middleman, 3 wholesalers, 3 retailers, and 5 consumers in
each district) were selected randomly for household survey from all three districts. Data were collected
by using set of pre-tested questionnaire by employing face to face survey with the respondents.
Data were analysed by using One Way Anova followed by Duncan's Multiple Range Test. Findings
revealed that grow out farmer, middleman, wholesaler, retailer and consumer are key actors to govern
existing supply chains of carp. There are upto seven types of supply chains of fresh carp and four
types of supply chains of live carp in three districts. Supply chain of live carp is comparatively shorter
with three actors than fresh carp supply chain to minimize fish loss due to handling stress. Grow out
farmers in Nawalparasi earned significantly (p Makwanpur, due to higher selling price and low variable costs incurred. In live carp supply chain,
middle man received higher margin (34-36%) whereas in fresh carp chain, retailers earned higher
profit in Makwanpur (50%) and Nawalparasi (56%), and middleman, in Chitwan (50%). Although
supply chain of live carp is found to be more profitable, but it is risky and not sustainable at the
moment. Therefore, supply chain of fresh carp needs to be strengthened.Link for e-copy: https://afu.edu.np/sites/default/files/Supply_chain_analysis_of_carp_in_Makwanpu [...]
