Analysis of egg quality and growth-related factors during embryogenic development of olive flounder (Paralichthys olivaceus) fed different broodstock diets
Egg quality serves as an early indicator of successful hatching and larval quality, both important for continuous larval culture production. The current study aimed to demonstrate the comparative effect of a formulated extruded pellet (EP) against a raw fish-based moist pellet (MP) as broodstock die...
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The Korean Society of Fisheries and Aquatic Science
2024-12-01
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| Series: | Fisheries and Aquatic Sciences |
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| Online Access: | http://www.e-fas.org/archive/view_article?doi=10.47853/FAS.2024.e76 |
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| author | Ji-Sung Moon Minji Seong Si-Chan Kim Josel Cadangin Ji-Hye Lee Eun-Seo Lee Bong-Seung Seo Haham Kim Su-Jin Park Jukyoung Kim Jinho Lee Seunghyung Lee Youn-Hee Choi |
| author_facet | Ji-Sung Moon Minji Seong Si-Chan Kim Josel Cadangin Ji-Hye Lee Eun-Seo Lee Bong-Seung Seo Haham Kim Su-Jin Park Jukyoung Kim Jinho Lee Seunghyung Lee Youn-Hee Choi |
| author_sort | Ji-Sung Moon |
| collection | DOAJ |
| description | Egg quality serves as an early indicator of successful hatching and larval quality, both important for continuous larval culture production. The current study aimed to demonstrate the comparative effect of a formulated extruded pellet (EP) against a raw fish-based moist pellet (MP) as broodstock diet of olive flounder (Paralichthys olivaceus) on the egg quality and level of growth-related factors during the embryonic development of fertilized eggs. The egg quality parameters such as spawned eggs volume, fertilization rate, egg diameter, oil globule diameter, oil globule volume, hatching rate, malformation rate, and survival activity index (SAI) were compared after feeding either EP or MP to broodstocks for 2 months. Besides, the study assessed the time to reach embryonic stages and the concentration of growth-related factors (growth hormone, insulin-like growth factor, and lipovitellin) at various developmental stages. The results showed that spawned eggs volume, fertilization rate, oil globule volume, and SAI were higher in the EP group compared to the MP group. In contrast, higher egg diameter, oil globule diameter, hatching rate, and lower malformation rate were observed in the MP group compared to the EP group. Nevertheless, no significant difference was observed in most parameters (p > 0.05). The proximate composition of fertilized eggs revealed significantly higher protein (including amino acids) and lipid contents in the MP group than in the EP group (p < 0.05). In contrast, the fatty acids EPA and DHA content was significantly higher in the EP group than in the MP group (p < 0.05). Comparison of the time to complete embryogenesis until hatching into larvae of fertilized eggs showed that there was a difference between diets with EP group faster than MP. The concentration of growth-related factors in various developmental stages was affected by experimental diets. The former two were higher in the EP group, while the latter was higher in the MP group. The findings of this study demonstrate the positive effects and suitability of an EP diet as a broodstock diet for olive flounder seed production. However, maintaining the consistency and quality of the diet’s constituents is likely crucial to sustaining these positive effects. |
| format | Article |
| id | doaj-art-886609a60b474e4e8aa0b5d18cc74a54 |
| institution | Kabale University |
| issn | 2234-1757 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | The Korean Society of Fisheries and Aquatic Science |
| record_format | Article |
| series | Fisheries and Aquatic Sciences |
| spelling | doaj-art-886609a60b474e4e8aa0b5d18cc74a542025-01-16T21:47:56ZengThe Korean Society of Fisheries and Aquatic ScienceFisheries and Aquatic Sciences2234-17572024-12-01271284285410.47853/FAS.2024.e76Analysis of egg quality and growth-related factors during embryogenic development of olive flounder (Paralichthys olivaceus) fed different broodstock dietsJi-Sung Moon0Minji Seong1Si-Chan Kim2Josel Cadangin3Ji-Hye Lee4Eun-Seo Lee5Bong-Seung Seo6Haham Kim7Su-Jin Park8Jukyoung Kim9Jinho Lee10Seunghyung Lee11Youn-Hee Choi12Department of Fisheries Biology, Pukyong National University, Busan 48513, KoreaWest Sea Aquatic Living Resources Center, Korea Fisheries Resources Agency, Buan 56338, KoreaDepartment of Fisheries Biology, Pukyong National University, Busan 48513, KoreaDepartment of Fisheries Biology, Pukyong National University, Busan 48513, KoreaDepartment of Fisheries Biology, Pukyong National University, Busan 48513, KoreaDepartment of Fisheries Biology, Pukyong National University, Busan 48513, KoreaDepartment of Fisheries Biology, Pukyong National University, Busan 48513, KoreaDepartment of Fisheries Biology, Pukyong National University, Busan 48513, KoreaSoutheast Marine Fisheries Research Institute, National Institute of Fisheries Science, Tongyeong 53085, KoreaSouth Sea Aquatic Living Resources Center, Korea Fisheries Resources Agency, Wando 59110, KoreaWest Sea Aquatic Living Resources Center, Korea Fisheries Resources Agency, Buan 56338, KoreaDepartment of Fisheries Biology, Pukyong National University, Busan 48513, KoreaDepartment of Fisheries Biology, Pukyong National University, Busan 48513, KoreaEgg quality serves as an early indicator of successful hatching and larval quality, both important for continuous larval culture production. The current study aimed to demonstrate the comparative effect of a formulated extruded pellet (EP) against a raw fish-based moist pellet (MP) as broodstock diet of olive flounder (Paralichthys olivaceus) on the egg quality and level of growth-related factors during the embryonic development of fertilized eggs. The egg quality parameters such as spawned eggs volume, fertilization rate, egg diameter, oil globule diameter, oil globule volume, hatching rate, malformation rate, and survival activity index (SAI) were compared after feeding either EP or MP to broodstocks for 2 months. Besides, the study assessed the time to reach embryonic stages and the concentration of growth-related factors (growth hormone, insulin-like growth factor, and lipovitellin) at various developmental stages. The results showed that spawned eggs volume, fertilization rate, oil globule volume, and SAI were higher in the EP group compared to the MP group. In contrast, higher egg diameter, oil globule diameter, hatching rate, and lower malformation rate were observed in the MP group compared to the EP group. Nevertheless, no significant difference was observed in most parameters (p > 0.05). The proximate composition of fertilized eggs revealed significantly higher protein (including amino acids) and lipid contents in the MP group than in the EP group (p < 0.05). In contrast, the fatty acids EPA and DHA content was significantly higher in the EP group than in the MP group (p < 0.05). Comparison of the time to complete embryogenesis until hatching into larvae of fertilized eggs showed that there was a difference between diets with EP group faster than MP. The concentration of growth-related factors in various developmental stages was affected by experimental diets. The former two were higher in the EP group, while the latter was higher in the MP group. The findings of this study demonstrate the positive effects and suitability of an EP diet as a broodstock diet for olive flounder seed production. However, maintaining the consistency and quality of the diet’s constituents is likely crucial to sustaining these positive effects. http://www.e-fas.org/archive/view_article?doi=10.47853/FAS.2024.e76Paralichthys olivaceusEgg qualityExtruded pelletFatty acidGrowth-related factors |
| spellingShingle | Ji-Sung Moon Minji Seong Si-Chan Kim Josel Cadangin Ji-Hye Lee Eun-Seo Lee Bong-Seung Seo Haham Kim Su-Jin Park Jukyoung Kim Jinho Lee Seunghyung Lee Youn-Hee Choi Analysis of egg quality and growth-related factors during embryogenic development of olive flounder (Paralichthys olivaceus) fed different broodstock diets Fisheries and Aquatic Sciences Paralichthys olivaceus Egg quality Extruded pellet Fatty acid Growth-related factors |
| title | Analysis of egg quality and growth-related factors during embryogenic development of olive flounder (Paralichthys olivaceus) fed different broodstock diets |
| title_full | Analysis of egg quality and growth-related factors during embryogenic development of olive flounder (Paralichthys olivaceus) fed different broodstock diets |
| title_fullStr | Analysis of egg quality and growth-related factors during embryogenic development of olive flounder (Paralichthys olivaceus) fed different broodstock diets |
| title_full_unstemmed | Analysis of egg quality and growth-related factors during embryogenic development of olive flounder (Paralichthys olivaceus) fed different broodstock diets |
| title_short | Analysis of egg quality and growth-related factors during embryogenic development of olive flounder (Paralichthys olivaceus) fed different broodstock diets |
| title_sort | analysis of egg quality and growth related factors during embryogenic development of olive flounder paralichthys olivaceus fed different broodstock diets |
| topic | Paralichthys olivaceus Egg quality Extruded pellet Fatty acid Growth-related factors |
| url | http://www.e-fas.org/archive/view_article?doi=10.47853/FAS.2024.e76 |
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