Evaluation of growth, sex (male proportion; sexual dimorphism), and color segregation in four cross combinations of different strains of XX female and YY male Nile Tilapia
Abstract Four cross combinations of different YY male and female Nile Tilapia Oreochromis niloticus strains were evaluated for growth, sex, and color segregation. Red color parental strains included blotched phenotypes. The Genetically Improved Farmed Tilapia (GIFT) was the only dark (wild‐type) col...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-04-01
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| Series: | Journal of the World Aquaculture Society |
| Subjects: | |
| Online Access: | https://doi.org/10.1111/jwas.12742 |
| _version_ | 1797803747425910784 |
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| author | Noel D. Novelo Boris Gomelsky Shawn D. Coyle Alexander G. Kramer |
| author_facet | Noel D. Novelo Boris Gomelsky Shawn D. Coyle Alexander G. Kramer |
| author_sort | Noel D. Novelo |
| collection | DOAJ |
| description | Abstract Four cross combinations of different YY male and female Nile Tilapia Oreochromis niloticus strains were evaluated for growth, sex, and color segregation. Red color parental strains included blotched phenotypes. The Genetically Improved Farmed Tilapia (GIFT) was the only dark (wild‐type) color parental strain. Fish of the same age and cross were stocked in three replicate tanks for four crosses in one recirculating system for 167 days. Data recorded included feed consumed, body weight, total length, color, sex, and fillet weight. YY males crossed with GIFT females (Cross 2) exhibited superior growth that was significantly different (p < .05) to other three crosses. Male proportions were 79–100%. Only YY males crossed with the LSA female strain (Cross 4) yielded 100% males, but, Cross 4's productivity was inferior to that of Cross 2. Body weight advantage of males over females was 28.7–84.2%. Color segregation indicated that red color trait in Nile Tilapia is autosomal dominant, and black patch coverage was variable. This study showed that different parental strain combinations clearly impact productivity traits, and that YY male technology combined with crossbreeding provide the opportunity for genetic improvement and development of commercially beneficial superior traits in Nile Tilapia. |
| first_indexed | 2024-03-13T05:26:41Z |
| format | Article |
| id | doaj.art-a90828cde1d945debe850bad1be6e2a4 |
| institution | Directory Open Access Journal |
| issn | 0893-8849 1749-7345 |
| language | English |
| last_indexed | 2024-03-13T05:26:41Z |
| publishDate | 2021-04-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of the World Aquaculture Society |
| spelling | doaj.art-a90828cde1d945debe850bad1be6e2a42023-06-15T05:51:38ZengWileyJournal of the World Aquaculture Society0893-88491749-73452021-04-0152244545610.1111/jwas.12742Evaluation of growth, sex (male proportion; sexual dimorphism), and color segregation in four cross combinations of different strains of XX female and YY male Nile TilapiaNoel D. Novelo0Boris Gomelsky1Shawn D. Coyle2Alexander G. Kramer3Aquaculture Research Center Kentucky State University Frankfort Kentucky USAAquaculture Research Center Kentucky State University Frankfort Kentucky USAAquaculture Research Center Kentucky State University Frankfort Kentucky USAAquaculture Research Center Kentucky State University Frankfort Kentucky USAAbstract Four cross combinations of different YY male and female Nile Tilapia Oreochromis niloticus strains were evaluated for growth, sex, and color segregation. Red color parental strains included blotched phenotypes. The Genetically Improved Farmed Tilapia (GIFT) was the only dark (wild‐type) color parental strain. Fish of the same age and cross were stocked in three replicate tanks for four crosses in one recirculating system for 167 days. Data recorded included feed consumed, body weight, total length, color, sex, and fillet weight. YY males crossed with GIFT females (Cross 2) exhibited superior growth that was significantly different (p < .05) to other three crosses. Male proportions were 79–100%. Only YY males crossed with the LSA female strain (Cross 4) yielded 100% males, but, Cross 4's productivity was inferior to that of Cross 2. Body weight advantage of males over females was 28.7–84.2%. Color segregation indicated that red color trait in Nile Tilapia is autosomal dominant, and black patch coverage was variable. This study showed that different parental strain combinations clearly impact productivity traits, and that YY male technology combined with crossbreeding provide the opportunity for genetic improvement and development of commercially beneficial superior traits in Nile Tilapia.https://doi.org/10.1111/jwas.12742crossbreedingNile tilapiaYY male technology |
| spellingShingle | Noel D. Novelo Boris Gomelsky Shawn D. Coyle Alexander G. Kramer Evaluation of growth, sex (male proportion; sexual dimorphism), and color segregation in four cross combinations of different strains of XX female and YY male Nile Tilapia Journal of the World Aquaculture Society crossbreeding Nile tilapia YY male technology |
| title | Evaluation of growth, sex (male proportion; sexual dimorphism), and color segregation in four cross combinations of different strains of XX female and YY male Nile Tilapia |
| title_full | Evaluation of growth, sex (male proportion; sexual dimorphism), and color segregation in four cross combinations of different strains of XX female and YY male Nile Tilapia |
| title_fullStr | Evaluation of growth, sex (male proportion; sexual dimorphism), and color segregation in four cross combinations of different strains of XX female and YY male Nile Tilapia |
| title_full_unstemmed | Evaluation of growth, sex (male proportion; sexual dimorphism), and color segregation in four cross combinations of different strains of XX female and YY male Nile Tilapia |
| title_short | Evaluation of growth, sex (male proportion; sexual dimorphism), and color segregation in four cross combinations of different strains of XX female and YY male Nile Tilapia |
| title_sort | evaluation of growth sex male proportion sexual dimorphism and color segregation in four cross combinations of different strains of xx female and yy male nile tilapia |
| topic | crossbreeding Nile tilapia YY male technology |
| url | https://doi.org/10.1111/jwas.12742 |
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