Evaluation of the Breeding Value of Rainbow Trout (Oncorhynchus mykkiss) for Body Development Traits Using a Linear Model
The objective of this research is to assess the breeding value of male individuals and calculate heritability values for body weight and body length at 12 months of age in the rainbow trout population in the Republic of Serbia. The study utilized data on the physical development of trout obtained th...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2023-12-01
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| Series: | Contemporary Agriculture |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/contagri-2023-0030 |
| _version_ | 1797375963754921984 |
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| author | Golubović Vukosav Stanojević Dragan Stanković Marko Vukojević Dalibor Marjanović Stefan Đedović Radica Marković Zoran |
| author_facet | Golubović Vukosav Stanojević Dragan Stanković Marko Vukojević Dalibor Marjanović Stefan Đedović Radica Marković Zoran |
| author_sort | Golubović Vukosav |
| collection | DOAJ |
| description | The objective of this research is to assess the breeding value of male individuals and calculate heritability values for body weight and body length at 12 months of age in the rainbow trout population in the Republic of Serbia. The study utilized data on the physical development of trout obtained through the Center for Fisheries and Applied Hydrobiology “Mali Dunav”, Experimental Estate “Radmilovac” of the Faculty of Agriculture, University of Belgrade (CEFAH) Breeding Program for rainbow trout in the Republic of Serbia. The fish were raised in individual tanks under tightly controlled conditions at the CEFAH, until they reached 5 months of age. At this point, the fish were marked (with PIT tags Norway) and transferred to commercial fish farms, where monitoring of their production results continued. To estimate the breeding value for body weight and body length of rainbow trout at 12 months of age, we analyzed data collected between 2016 and 2020, which included a total of 2014 individuals. The breeding values were estimated using a sire model. The mixed model incorporated fixed effects (spawning year and sex) and a random effect for the individual sire. The heritability estimate at 12 months of age was 0.44 for body weight, and 0.45 for body length. The breeding values were estimated for 107 sires, with body weight values ranging from −37.83 to +37.83 g and body length values ranging from −14.00 to +14.00 mm. The substantial variation observed within the studied rainbow trout population suggests the potential for further genetic improvement. The high heritability values confirm that further selection can be based on the phenotype. The inclusion of high-quality and validated males in breeding programs will contribute to the enhancement of production characteristics within the existing rainbow trout population in Serbia. |
| first_indexed | 2024-03-08T19:31:50Z |
| format | Article |
| id | doaj.art-d5c95bf17edc473386cb41aaf63258c6 |
| institution | Directory Open Access Journal |
| issn | 2466-4774 |
| language | English |
| last_indexed | 2024-03-08T19:31:50Z |
| publishDate | 2023-12-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Contemporary Agriculture |
| spelling | doaj.art-d5c95bf17edc473386cb41aaf63258c62023-12-26T07:41:54ZengSciendoContemporary Agriculture2466-47742023-12-0172422422910.2478/contagri-2023-0030Evaluation of the Breeding Value of Rainbow Trout (Oncorhynchus mykkiss) for Body Development Traits Using a Linear ModelGolubović Vukosav0Stanojević Dragan1Stanković Marko2Vukojević Dalibor3Marjanović Stefan4Đedović Radica5Marković Zoran61University of Belgrade, Faculty of Agriculture, Nemanjina 6, Belgrade, Serbia1University of Belgrade, Faculty of Agriculture, Nemanjina 6, Belgrade, Serbia1University of Belgrade, Faculty of Agriculture, Nemanjina 6, Belgrade, Serbia1University of Belgrade, Faculty of Agriculture, Nemanjina 6, Belgrade, Serbia1University of Belgrade, Faculty of Agriculture, Nemanjina 6, Belgrade, Serbia1University of Belgrade, Faculty of Agriculture, Nemanjina 6, Belgrade, Serbia1University of Belgrade, Faculty of Agriculture, Nemanjina 6, Belgrade, SerbiaThe objective of this research is to assess the breeding value of male individuals and calculate heritability values for body weight and body length at 12 months of age in the rainbow trout population in the Republic of Serbia. The study utilized data on the physical development of trout obtained through the Center for Fisheries and Applied Hydrobiology “Mali Dunav”, Experimental Estate “Radmilovac” of the Faculty of Agriculture, University of Belgrade (CEFAH) Breeding Program for rainbow trout in the Republic of Serbia. The fish were raised in individual tanks under tightly controlled conditions at the CEFAH, until they reached 5 months of age. At this point, the fish were marked (with PIT tags Norway) and transferred to commercial fish farms, where monitoring of their production results continued. To estimate the breeding value for body weight and body length of rainbow trout at 12 months of age, we analyzed data collected between 2016 and 2020, which included a total of 2014 individuals. The breeding values were estimated using a sire model. The mixed model incorporated fixed effects (spawning year and sex) and a random effect for the individual sire. The heritability estimate at 12 months of age was 0.44 for body weight, and 0.45 for body length. The breeding values were estimated for 107 sires, with body weight values ranging from −37.83 to +37.83 g and body length values ranging from −14.00 to +14.00 mm. The substantial variation observed within the studied rainbow trout population suggests the potential for further genetic improvement. The high heritability values confirm that further selection can be based on the phenotype. The inclusion of high-quality and validated males in breeding programs will contribute to the enhancement of production characteristics within the existing rainbow trout population in Serbia.https://doi.org/10.2478/contagri-2023-0030rainbow troutphenotypic and genetic variabilityheritabilitybreeding value |
| spellingShingle | Golubović Vukosav Stanojević Dragan Stanković Marko Vukojević Dalibor Marjanović Stefan Đedović Radica Marković Zoran Evaluation of the Breeding Value of Rainbow Trout (Oncorhynchus mykkiss) for Body Development Traits Using a Linear Model Contemporary Agriculture rainbow trout phenotypic and genetic variability heritability breeding value |
| title | Evaluation of the Breeding Value of Rainbow Trout (Oncorhynchus mykkiss) for Body Development Traits Using a Linear Model |
| title_full | Evaluation of the Breeding Value of Rainbow Trout (Oncorhynchus mykkiss) for Body Development Traits Using a Linear Model |
| title_fullStr | Evaluation of the Breeding Value of Rainbow Trout (Oncorhynchus mykkiss) for Body Development Traits Using a Linear Model |
| title_full_unstemmed | Evaluation of the Breeding Value of Rainbow Trout (Oncorhynchus mykkiss) for Body Development Traits Using a Linear Model |
| title_short | Evaluation of the Breeding Value of Rainbow Trout (Oncorhynchus mykkiss) for Body Development Traits Using a Linear Model |
| title_sort | evaluation of the breeding value of rainbow trout oncorhynchus mykkiss for body development traits using a linear model |
| topic | rainbow trout phenotypic and genetic variability heritability breeding value |
| url | https://doi.org/10.2478/contagri-2023-0030 |
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