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  • 1
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    The effect of optimum dosage of Ovaprim injection on artificial spawning of Esox lucius (2017)
    Details
    Publication Date: 2021-05-19
    Description: This project was conducted to explore the effect of optimum dosage of Ovaprim injection on artificial spawning of Esox lucius. The research implemented by 4 treatments with 3 replicates for each ones. Three female and six male brooders were injected in each replicate. The animals in 1, 2 and 3 treatments were injected by 10, 20 and 30 µg/kg BW, respectively, and 4 th treatment was considered as the control being injected with 4 mg/kg BW pituitary gland extract. Average (±SE) weights were 1361±521, 1376±954, 1009±160 and 1100 ±422 g in 1, 2, 3 and 4 treatments in females, respectively. In addition, positive response percent to hormone injection were measured as 77.8 ±19.24, 88.9 ± 19.24, 55.5 ±50.91 and 55.5 ± 19.24 % in 1, 2, 3 and 4 treatments in female and 94.4 ± 9.58, 88.9 ±19.26, 83.3±28.86 and 88.9 ± 19.26 % in male brooders, respectively. However, there was no significant different between all treatments. Fertilization content (±SE) in one to four treatments measured as 87.1±10, 88.04±7.7, 83.9±5.2 and 72.4±19.7 %, respectively. No significant differences were found among pairwise treatments. Average (±SE) percentage of eyed eggs were 66.6±15.9 for treatment one, 61.2±22.3 in treatment two, 58.3±10.7 in treatment three, and 56.1±15.04 in treatment four, with no significant pairwise differences. The average (±SE) hatching eggs were measured as 27.41±19.8 in treatment one, 39.53±26.9 in treatment two, 95.18±5.6 in treatment three and 26.78±12.4 in treatment four, with no significane pairwise differences. Also, the best dosage injection of ovaprim hormone was 10 and 20 µg/kgBW.
    Description: Published
    Keywords: Esox Lucius ; Eyed eggs ; Reproduction ; Spawning ; Ovaprim hormon ; Fecundations
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp.1-15
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  • 2
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    Determination of optimum Dosage of Ovaprim injectionon Artificial spawning Efficiency of Esox Lucius (2018)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    Details
    Publication Date: 2021-05-19
    Description: This project was conducted to goal of optimum dosage determination of ovaprim injection to artificial spawning efficiency of Esox lucius. The research implemented by 4 treatments with 3 replicates for each ones. 3 female and 6 male brooders injected in each replicate. The animals in 1, 2 and 3 treatments injected by 10, 20 and 30 µg/kg BW, respectively, and 4th treatment as a control injected with 4 mg/kg BW pituitary gland extract. Average weight of brooders were 1361±521, 1376±954, 1009±160 and 1100 ±422 g in 1, 2, 3 and 4 treatments in females and 689±145, 734±197, 547±118 and 794±238 g in males, respectively. In addition, positive response percent to hormone injection were measured 77.8 ±19.24 , 88.9 ± 19.24 , 55.5 ±50.91 and 55.5 ± 19.24 % in 1, 2, 3 and 4 treatments in female and 94.4 ± 9.58, 88.9 ±19.26 , 83.3±28.86 and 88.9 ± 19.26 % in male brooders, respectively, but there was no significant different between all of treatments (p〈0.05). Incubation period from fertilization till hatching step in 7 to 15 ˚C was 5 to 10 days with average of 7±1.5 days. Fertilization content was in 1 to 4 treatments measured 87.1±10, 88.04±7.7, 83.9±5.2 and 72.4±19.7 %, respectively and also the treatments didn’t show any different significantly together (p〈0.05). Average percentage of eyed eggs 66.6±15.9 in treat 1, 61.2±22.3 in treat 2, 58.3±10.7 in treat 3 and 56.1±15.04 in treat 4, without any significant different between of them (p〈0.05). Hatching of eggs mean were measured 27.41±19.8 in treat 1, 39.53±26.9 in treat 2, 95.18±5.6 in treat 3 and 26.78±12.4 in treat 4, and significant different observed between of them too (p〈0.05).In the other hand, mean percent of larvae with active feeding in these treatments were measured 18.77±14.6, 20.1±8.51, 55.6±11.6 and 14.51±7.72 as the treatments had significant different (p〈0.05). Also, the best temperature and dosage injection of ovaprim hormone was 9 to 12.5 ˚C and 20µg/kg BW, respectively.The end of trial, from 103740 larvae introduced to earthen pond obtained 8000 fingerlings with weight of 2.68±0.6 g and length of 6.96±0.51 cm.
    Description: Iranian Fisheries Science Research Institute
    Description: Published
    Keywords: Esox Lucius ; Reproduction ; Spawning ; Ovaprim Injection ; Fecundations ; Hatching ; Brooders ; Females ; Males ; Fertilization ; Hormone ; Larvae ; Earthen pond ; Fingerlings
    Repository Name: AquaDocs
    Type: Report , Refereed
    Format: 168pp.
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  • 3
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    Unknown
    Determination of optimum dosage of Ovaprim injectionon artificial spawning efficiency of Esox lucius (2021)
    Iranian Fisheries Science Research Institute | Tehran, Iran
    In:  http://aquaticcommons.org/id/eprint/25530 | 18721 | 2018-10-05 15:55:00 | 25530 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-16
    Description: This project was conducted to goal of optimum dosage determination of ovaprim injection to artificial spawning efficiency of Esox lucius. The research implemented by 4 treatments with 3 replicates for each ones. 3 female and 6 male brooders injected in each replicate. The animals in 1, 2 and 3 treatments injected by 10, 20 and 30 µg/kg BW, respectively, and 4th treatment as a control injected with 4 mg/kg BW pituitary gland extract. Average weight of brooders were 1361±521, 1376±954, 1009±160 and 1100 ±422 g in 1, 2, 3 and 4 treatments in females and 689±145, 734±197, 547±118 and 794±238 g in males, respectively. In addition, positive response percent to hormone injection were measured 77.8 ±19.24 , 88.9 ± 19.24 , 55.5 ±50.91 and 55.5 ± 19.24 % in 1, 2, 3 and 4 treatments in female and 94.4 ± 9.58, 88.9 ±19.26 , 83.3±28.86 and 88.9 ± 19.26 % in male brooders, respectively, but there was no significant different between all of treatments (p〈0.05). Incubation period from fertilization till hatching step in 7 to 15 ˚C was 5 to 10 days with average of 7±1.5 days. Fertilization content was in 1 to 4 treatments measured 87.1±10, 88.04±7.7, 83.9±5.2 and 72.4±19.7 %, respectively and also the treatments didn’t show any different significantly together (p〈0.05). Average percentage of eyed eggs 66.6±15.9 in treat 1, 61.2±22.3 in treat 2, 58.3±10.7 in treat 3 and 56.1±15.04 in treat 4, without any significant different between of them (p〈0.05). Hatching of eggs mean were measured 27.41±19.8 in treat 1, 39.53±26.9 in treat 2, 95.18±5.6 in treat 3 and 26.78±12.4 in treat 4, and significant different observed between of them too (p〈0.05).In the other hand, mean percent of larvae with active feeding in these treatments were measured 18.77±14.6, 20.1±8.51, 55.6±11.6 and 14.51±7.72 as the treatments had significant different (p〈0.05). Also, the best temperature and dosage injection of ovaprim hormone was 9 to 12.5 ˚C and 20µg/kg BW, respectively. The end of trial, from 103740 larvae introduced to earthen pond obtained 8000 fingerlings with weight of 2.68±0.6 g and length of 6.96±0.51 cm.
    Keywords: Aquaculture ; Iran ; Esox Lucius ; Reproduction ; Spawning ; Ovaprim Injection ; Fecundations ; Hatching ; Brooders ; Females ; Males ; Fertilization ; Hormone ; Larvae ; Earthen pond ; Fingerlings
    Repository Name: AquaDocs
    Type: monograph
    Format: application/pdf
    Format: application/pdf
    Format: 168
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  • 4
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    Unknown
    The effect of optimum dosage of Ovaprim injection on artificial spawning of Esox lucius (2021)
    In:  http://aquaticcommons.org/id/eprint/22022 | 18721 | 2018-01-25 06:53:02 | 22022 | Iranian Fisheries Science Research Institute
    Details
    Publication Date: 2021-07-06
    Description: This project was conducted to explore the effect of optimum dosage of Ovaprim injection on the artificial spawning of Esox lucius. The research implemented by 4 treatments with 3 replicates for each one. Three female and six male brooders were injected in each replicate. The animals in 1, 2 and 3 treatments were injected by 10, 20 and 30 µg/kg BW, respectively, and 4 the treatment was considered as the control being injected with 4 mg/kg BW pituitary gland extract. Average (±SE) weights were 1361±521, 1376±954, 1009±160 and 1100 ±422 g in 1, 2, 3 and 4 treatments in females, respectively. In addition, positive response percent to hormone injection were measured as 77.8 ±19.24, 88.9 ± 19.24, 55.5 ±50.91 and 55.5 ± 19.24 % in 1, 2, 3 and 4 treatments in female and 94.4 ± 9.58, 88.9 ±19.26, 83.3±28.86 and 88.9 ± 19.26 % in male brooders, respectively. However, there was no significant different between all treatments. Fertilization content (±SE) in one to four treatments measured as 87.1±10, 88.04±7.7, 83.9±5.2 and 72.4±19.7 %, respectively. No significant differences were found among pairwise treatments. Average (±SE) percentage of eyed eggs were 66.6±15.9 for treatment one, 61.2±22.3 in treatment two, 58.3±10.7 in treatment three, and 56.1±15.04 in treatment four, with no significant pairwise differences. The average (±SE) hatching eggs were measured as 27.41±19.8 in treatment one, 39.53±26.9 in treatment two, 95.18±5.6 in treatment three and 26.78±12.4 in treatment four, with no significant pairwise differences. Also, the best dosage injection of ovaprim hormone was 10 and 20 µg/kgBW.
    Keywords: Aquaculture ; Biology ; Chemistry ; Esox Lucius ; Reproduction ; Spawning ; Ovaprim hormon ; Fecundations ; Eyed eggs ; female ; hormone ; hatching ; Iran
    Repository Name: AquaDocs
    Type: article , TRUE
    Format: application/pdf
    Format: application/pdf
    Format: 1-16
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