Efficacy of tamoxifen on sex reversal of nile tilapia (Oreochromis niloticus) / N. P. Pandit in Journal of Agriculture and Forestry University, Volume 2 (2018)  

Public ISBD [article]  inJournal of Agriculture and Forestry University > Volume 2 (2018) . - 211-216 p. Title : Efficacy of tamoxifen on sex reversal of nile tilapia (Oreochromis niloticus) Material Type: printed text Authors: N. P. Pandit, Author ; R, Ranjan, Author ; R. Wagle, Author ; A. K, Yadav, Author ; N. R. Jaishi, Author ; I. Singh Mahato, Author Publication Date: 2018 Article on page: 211-216 p. Languages : English (eng) Keywords: Cytotam 20  non-steroidal aromatase inhibitor  masculinization Abstract: The efficacy of tamoxifen, a non-steroidal aromatase inhibitor, for inducing masculinization in Nile tilapia was assessed. Nine days post hatch tilapia fry were reared in fine meshed nylon hapas, suspended in a green cemented pond, and fed with tamoxifen (Cytotam 20) @ 150, 200, 250, 300, 350, 500, and 1000 mg/kg diet for 30 and 40 days. In 30 days treatment group, the percentage of male fed with tamoxifen @ 150, 200, 250, 300, 350, 500 and 1000 mg/kg diet were 67.6±0.5, 72.4±2.7, 84.5±1.8, 87.5±1.4, 89.7±1.0, 90.0±1.3 and 96.7±1.2, respectively, while control group had 50.8±0.9 to 50.9±1.4% males. Although the treatment with tamoxifen in lower concentrations (150-500 mg/ kg diet) significantly increased the male proportion compared to control diet, the percentage of male was significantly highest in treatment with 1000 mg/kg diet. There were no significant differences in percentage of male between 30 and 40 days of treatment durations. Likewise there was no significant difference in the survival of Nile tilapia fries among control and treatment groups. The findings revealed that tamoxifen has potential for production of all-male Nile tilapia. The best dose of tamoxifen was 1000 mg/kg feed. However, increased dose of tamoxifen should be tested to induce 100% masculinization Link for e-copy: https://afu.edu.np/sites/default/files/Efficacy_of_tamoxifen_on_sex_reversal_of_ [...] [article] Efficacy of tamoxifen on sex reversal of nile tilapia (Oreochromis niloticus) [printed text] / N. P. Pandit, Author ; R, Ranjan, Author ; R. Wagle, Author ; A. K, Yadav, Author ; N. R. Jaishi, Author ; I. Singh Mahato, Author . - 2018 . - 211-216 p. Languages : English (eng) in Journal of Agriculture and Forestry University > Volume 2 (2018) . - 211-216 p. Keywords: Cytotam 20  non-steroidal aromatase inhibitor  masculinization Abstract: The efficacy of tamoxifen, a non-steroidal aromatase inhibitor, for inducing masculinization in Nile tilapia was assessed. Nine days post hatch tilapia fry were reared in fine meshed nylon hapas, suspended in a green cemented pond, and fed with tamoxifen (Cytotam 20) @ 150, 200, 250, 300, 350, 500, and 1000 mg/kg diet for 30 and 40 days. In 30 days treatment group, the percentage of male fed with tamoxifen @ 150, 200, 250, 300, 350, 500 and 1000 mg/kg diet were 67.6±0.5, 72.4±2.7, 84.5±1.8, 87.5±1.4, 89.7±1.0, 90.0±1.3 and 96.7±1.2, respectively, while control group had 50.8±0.9 to 50.9±1.4% males. Although the treatment with tamoxifen in lower concentrations (150-500 mg/ kg diet) significantly increased the male proportion compared to control diet, the percentage of male was significantly highest in treatment with 1000 mg/kg diet. There were no significant differences in percentage of male between 30 and 40 days of treatment durations. Likewise there was no significant difference in the survival of Nile tilapia fries among control and treatment groups. The findings revealed that tamoxifen has potential for production of all-male Nile tilapia. The best dose of tamoxifen was 1000 mg/kg feed. However, increased dose of tamoxifen should be tested to induce 100% masculinization Link for e-copy: https://afu.edu.np/sites/default/files/Efficacy_of_tamoxifen_on_sex_reversal_of_ [...]

Growth performance of different fish species during dry period in Chitwan, Nepal / P. Neupane in Journal of Agriculture and Forestry University, Volume 5 (2022)  

Public ISBD [article]  inJournal of Agriculture and Forestry University > Volume 5 (2022) . - 177-185 p. 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 [...] [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 [...]