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Author S. Sapkota |
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Refine your search Apply to external sourcesAntioxidant activity of essential oil of Artemisia vulgaris collected from sub-tropical region of Bagmati province, Nepal / S. Sapkota in Journal of Agriculture and Forestry University, Volume 5 (2022)
Title : Antioxidant activity of essential oil of Artemisia vulgaris collected from sub-tropical region of Bagmati province, Nepal Material Type: printed text Authors: S. Sapkota, Author ; P. Kadariya, Author ; Madhav Pandey, Author ; P. Risal, Author ; B. B. Basnet, Author Publication Date: 2022 Article on page: 203-207 p. Languages : English (eng) Keywords: Artemisia vulgaris, essential oil, antioxidants, phytochemicals Abstract: Artemisia vulgaris is one of the highly used plant species as traditional medicine because of its antioxidant
activity, anti-allergic effect and other several health benefits. This study was carried out with the objectives to
explore the phytochemical constituents and assess the antioxidant property of essential oils of A. vulgaris found
in sub- tropical regions of Bagmati province. Hydro distillation method was used for the extraction of essential oil
and gas chromatography–mass spectrometry (GC-MS) analysis was performed to identify various phytochemicals
present in essential oil. Evaluation of antioxidant activity by in vitro method was carried out by observing
hydrogen peroxide scavenging effects of essential oils at different concentrations. GC-MS analysis showed 41
different phytochemicals including mono- and sesquiterpenes. Among them, highly expressed phytochemicals
were Cadinene(14.95%), Caryophyllene(E) (9.32%), Camphor (8.74%), Thujone (6.57%),
Eucalyptol (6.25%). Essential oil also showed scavenging effect against hydrogen peroxide with EC50 value of
48.49. This preliminary study shows that essential oil of A. vulgaris can be used as a source of natural antioxidants,
but in vivo and other clinical trials must be done for oral use.Link for e-copy: https://afu.edu.np/sites/default/files/Antioxidant_activity_of_essential_oil_of_ [...]
in Journal of Agriculture and Forestry University > Volume 5 (2022) . - 203-207 p.[article] Antioxidant activity of essential oil of Artemisia vulgaris collected from sub-tropical region of Bagmati province, Nepal [printed text] / S. Sapkota, Author ; P. Kadariya, Author ; Madhav Pandey, Author ; P. Risal, Author ; B. B. Basnet, Author . - 2022 . - 203-207 p.
Languages : English (eng)
in Journal of Agriculture and Forestry University > Volume 5 (2022) . - 203-207 p.
Keywords: Artemisia vulgaris, essential oil, antioxidants, phytochemicals Abstract: Artemisia vulgaris is one of the highly used plant species as traditional medicine because of its antioxidant
activity, anti-allergic effect and other several health benefits. This study was carried out with the objectives to
explore the phytochemical constituents and assess the antioxidant property of essential oils of A. vulgaris found
in sub- tropical regions of Bagmati province. Hydro distillation method was used for the extraction of essential oil
and gas chromatography–mass spectrometry (GC-MS) analysis was performed to identify various phytochemicals
present in essential oil. Evaluation of antioxidant activity by in vitro method was carried out by observing
hydrogen peroxide scavenging effects of essential oils at different concentrations. GC-MS analysis showed 41
different phytochemicals including mono- and sesquiterpenes. Among them, highly expressed phytochemicals
were Cadinene(14.95%), Caryophyllene(E) (9.32%), Camphor (8.74%), Thujone (6.57%),
Eucalyptol (6.25%). Essential oil also showed scavenging effect against hydrogen peroxide with EC50 value of
48.49. This preliminary study shows that essential oil of A. vulgaris can be used as a source of natural antioxidants,
but in vivo and other clinical trials must be done for oral use.Link for e-copy: https://afu.edu.np/sites/default/files/Antioxidant_activity_of_essential_oil_of_ [...]
Title : Effect of forced molting on post molt production performance of locally available commercial laying chicken Material Type: printed text Authors: S. Sapkota, Author ; R. Shah, Author ; D. K. Chhetri, Author ; S.R. Barsila, Author Publication Date: 2018 Article on page: 199-204 p. Languages : English (eng) Keywords: : Forced molting, layers, post molt, mortality, feed intake Abstract: A study was done at a commercial farm in Sorabhagh, Morang district on layers using a cage system
for 114 days during June 24, 2017 to October 15, 2017. The objective of this study was to determine
the effect of forced molting on production parameters of Lohmann layers. The cages were disinfected
before the study with Virkon-s and Hydrogen peroxide. 3072 laying birds were divided into three
treatment groups.The treatments were- without feed restriction (control=T0), 7 days feed restriction
(T1
) and 15 days feed restriction (T2) which was further replicated each for four times. There were
256 birds in each replication. The mortality rates, feed intake per bird, egg production and egg weight
were recorded. Analysis of variance showed significantly (p the treatment groups during the first 15 days. Accordingly, higher mortality (1.07%) was recorded
in T2. Result revealed a significant difference in feed intake throughout the study period. In the end,
higher feed intake (102.45 g) was recorded in T2. However, statistically similar (p>0.05) feed intake
was observed in T1
and T0. The results showed a significant difference in egg production among
the treatment groups. Higher egg production (65.9%) was observed in the T2
group at the end of the
experimental period with an increasing trend. However, lower egg production (47.7%) was recorded
in T0. Statistically similar egg weight (p>0.05) was recorded in all treatment groups throughout the
study period.The results obtained from this study revealed that forced molting can increase the egg
production and feed intake rate with the cost of slight increment in the mortality rate.Link for e-copy: https://afu.edu.np/sites/default/files/Effect_of_forced_molting_on_post_molt_pro [...]
in Journal of Agriculture and Forestry University > Volume 2 (2018) . - 199-204 p.[article] Effect of forced molting on post molt production performance of locally available commercial laying chicken [printed text] / S. Sapkota, Author ; R. Shah, Author ; D. K. Chhetri, Author ; S.R. Barsila, Author . - 2018 . - 199-204 p.
Languages : English (eng)
in Journal of Agriculture and Forestry University > Volume 2 (2018) . - 199-204 p.
Keywords: : Forced molting, layers, post molt, mortality, feed intake Abstract: A study was done at a commercial farm in Sorabhagh, Morang district on layers using a cage system
for 114 days during June 24, 2017 to October 15, 2017. The objective of this study was to determine
the effect of forced molting on production parameters of Lohmann layers. The cages were disinfected
before the study with Virkon-s and Hydrogen peroxide. 3072 laying birds were divided into three
treatment groups.The treatments were- without feed restriction (control=T0), 7 days feed restriction
(T1
) and 15 days feed restriction (T2) which was further replicated each for four times. There were
256 birds in each replication. The mortality rates, feed intake per bird, egg production and egg weight
were recorded. Analysis of variance showed significantly (p the treatment groups during the first 15 days. Accordingly, higher mortality (1.07%) was recorded
in T2. Result revealed a significant difference in feed intake throughout the study period. In the end,
higher feed intake (102.45 g) was recorded in T2. However, statistically similar (p>0.05) feed intake
was observed in T1
and T0. The results showed a significant difference in egg production among
the treatment groups. Higher egg production (65.9%) was observed in the T2
group at the end of the
experimental period with an increasing trend. However, lower egg production (47.7%) was recorded
in T0. Statistically similar egg weight (p>0.05) was recorded in all treatment groups throughout the
study period.The results obtained from this study revealed that forced molting can increase the egg
production and feed intake rate with the cost of slight increment in the mortality rate.Link for e-copy: https://afu.edu.np/sites/default/files/Effect_of_forced_molting_on_post_molt_pro [...]
Title : Evaluation of egg laying and egg quality parameters of local chicken sakini (Gallus gallus domesticus) of Nepal Material Type: printed text Authors: S. Sapkota, Author ; M. R. Kolakshyapati, Author ; N. R. Devkota, Author ; N. A. Gorkhali, Author ; N. Bhattarai, Author Publication Date: 2017 Article on page: 181-188 p. Languages : English (eng) Keywords: egg, native, breed, quality, value Abstract: Eggs are the important and easy sources of protein for the people of rural areas. Moreover, eggs
from local chickens are popular and fetch good value. Therefore, this study mainly aimed at
evaluating egg laying and egg quality parameters of Sakini (Gallus gallus domesticus) of Nepal to
understand the reproductive fitness of the chicken and correlation among the parameters. For this,
a total of 30 eggs (10 each) collected from the chickens of three agro-ecological zones (AEZs),
representing terai, mid-hill and high-hill and of similar age groups after one month of egg laying.
These chickens were raised in same environment and management condition at Swine and Avian
Research Program(SARP), Khumaltar. Egg laying per hen per year was calculated for the chicken
from each AEZs and was found highest for high hills (140). Egg weight (EW), Egg Length (EL),
Egg Breadth (EB), Yolk weight (YW), Shell Thickness (ST), Dry Shell weight (DSW), Albumen
weight (AW) were the parameters recorded. With this, Least square means and Standard Errors
(LSM±SE) for Egg volume (EV), Surface Area (SA), Shape Index (SI) and Breaking Strength
(BS) were calculated. In all cases, the eggs from the Sakini from high hills were better in terms of
EW(47.45g), YW(13.6g) and AW (29.28g). Similarly, EV (42.02 cm3 ), SA(73.06 cm2 ), SI(0.75)
and BS(1718.74g) were also higher for the eggs from high hill chickens. This result showed that
the Sakini from high hills can be selected and their genetic potentiality of egg laying and egg
parameters can be explored to improve the native Sakini breeds in the other regions, of Nepal.Link for e-copy: https://afu.edu.np/sites/default/files/Evaluation_of_egg_laying_and_egg_quality_ [...]
in Journal of Agriculture and Forestry University > Volume 1 (2017) . - 181-188 p.[article] Evaluation of egg laying and egg quality parameters of local chicken sakini (Gallus gallus domesticus) of Nepal [printed text] / S. Sapkota, Author ; M. R. Kolakshyapati, Author ; N. R. Devkota, Author ; N. A. Gorkhali, Author ; N. Bhattarai, Author . - 2017 . - 181-188 p.
Languages : English (eng)
in Journal of Agriculture and Forestry University > Volume 1 (2017) . - 181-188 p.
Keywords: egg, native, breed, quality, value Abstract: Eggs are the important and easy sources of protein for the people of rural areas. Moreover, eggs
from local chickens are popular and fetch good value. Therefore, this study mainly aimed at
evaluating egg laying and egg quality parameters of Sakini (Gallus gallus domesticus) of Nepal to
understand the reproductive fitness of the chicken and correlation among the parameters. For this,
a total of 30 eggs (10 each) collected from the chickens of three agro-ecological zones (AEZs),
representing terai, mid-hill and high-hill and of similar age groups after one month of egg laying.
These chickens were raised in same environment and management condition at Swine and Avian
Research Program(SARP), Khumaltar. Egg laying per hen per year was calculated for the chicken
from each AEZs and was found highest for high hills (140). Egg weight (EW), Egg Length (EL),
Egg Breadth (EB), Yolk weight (YW), Shell Thickness (ST), Dry Shell weight (DSW), Albumen
weight (AW) were the parameters recorded. With this, Least square means and Standard Errors
(LSM±SE) for Egg volume (EV), Surface Area (SA), Shape Index (SI) and Breaking Strength
(BS) were calculated. In all cases, the eggs from the Sakini from high hills were better in terms of
EW(47.45g), YW(13.6g) and AW (29.28g). Similarly, EV (42.02 cm3 ), SA(73.06 cm2 ), SI(0.75)
and BS(1718.74g) were also higher for the eggs from high hill chickens. This result showed that
the Sakini from high hills can be selected and their genetic potentiality of egg laying and egg
parameters can be explored to improve the native Sakini breeds in the other regions, of Nepal.Link for e-copy: https://afu.edu.np/sites/default/files/Evaluation_of_egg_laying_and_egg_quality_ [...]
