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Oikonomou S, Kazlari Z, Loukovitis D, Dimitroglou A, Kottaras L, Tzokas K, Barkas D, Katribouzas N, Papaharisis L, Chatziplis D. Genetic Parameters and Genotype × Diet Interaction for Body Weight Performance and Fat in Gilthead Seabream. Animals (Basel) 2023; 13:ani13010180. [PMID: 36611788 PMCID: PMC9817679 DOI: 10.3390/ani13010180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/14/2022] [Accepted: 12/30/2022] [Indexed: 01/05/2023] Open
Abstract
There has been thorough research on the genotype by diet interaction and the extent of its impact on the genetic evaluation, using a partly replaced marine animal protein on the gilthead seabream. To do that, 8356 individuals were gathered from two batches and followed different diets: a high-plant-protein diet containing 85% plant proteins and a standard commercial one containing 30% marine animal protein. During the experiment, body weight, growth and fat content were recorded. High heritability estimates were detected for the body weight performance and fat content. A small effect of genotype by diet interaction was detected in all phenotypes (presented as the genetic correlations from 0.95 to 0.97) but a medium-high ranking correlation between the breeding values for each trait was estimated (0.72-0.70). A higher expected response to selection for the body weight performance was detected using the standard commercial rather than the plant-based diet. Based on the findings, the establishment of a plant-based diet breeding strategy can be achieved provided the reduction of the cost of aquafeed is attained, though a lower genetic gain is expected.
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Affiliation(s)
- Stavroula Oikonomou
- Laboratory of Agrobiotechnology and Inspection of Agricultural Products, Department of Agricultural Technology, School of Geotechnical Sciences, International Hellenic University, Alexander Campus, P.O. Box 141, Sindos, 57400 Thessaloniki, Greece
- Correspondence:
| | - Zoi Kazlari
- Laboratory of Agrobiotechnology and Inspection of Agricultural Products, Department of Agricultural Technology, School of Geotechnical Sciences, International Hellenic University, Alexander Campus, P.O. Box 141, Sindos, 57400 Thessaloniki, Greece
| | - Dimitrios Loukovitis
- Laboratory of Agrobiotechnology and Inspection of Agricultural Products, Department of Agricultural Technology, School of Geotechnical Sciences, International Hellenic University, Alexander Campus, P.O. Box 141, Sindos, 57400 Thessaloniki, Greece
- Research Institute of Animal Science, ELGO Demeter, Paralimni, 58100 Giannitsa, Greece
| | - Arkadios Dimitroglou
- Department of Animal Science, Agricultural University of Athens, Iera Odos 75, 11855 Athens, Greece
- Department of Research & Development, Avramar Aquaculture SA, 341 00 Chalkida, Greece
| | - Lefteris Kottaras
- Department of Research & Development, Avramar Aquaculture SA, 341 00 Chalkida, Greece
| | - Konstantinos Tzokas
- Department of Research & Development, Avramar Aquaculture SA, 341 00 Chalkida, Greece
| | - Dimitrios Barkas
- Department of Research & Development, Avramar Aquaculture SA, 341 00 Chalkida, Greece
| | - Nikolaos Katribouzas
- Department of Research & Development, Avramar Aquaculture SA, 341 00 Chalkida, Greece
| | - Leonidas Papaharisis
- Department of Research & Development, Avramar Aquaculture SA, 341 00 Chalkida, Greece
| | - Dimitrios Chatziplis
- Laboratory of Agrobiotechnology and Inspection of Agricultural Products, Department of Agricultural Technology, School of Geotechnical Sciences, International Hellenic University, Alexander Campus, P.O. Box 141, Sindos, 57400 Thessaloniki, Greece
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