Genetic parameters for house fly larval performance in two dietary environments

TY - ABST

T1 - Genetic parameters for house fly larval performance in two dietary environments

AU - Georgalas, Michella D.

AU - Hansen, Laura Skrubbeltrang

AU - Laursen, Stine Frey

AU - Bahrndorff, Simon

AU - Sørensen, Jesper Givskov

AU - Kargo, Morten

AU - Kristensen, Torsten Nygaard

AU - Guldbrandtsen, Bernt

AU - Nielsen, Hanne Marie

N1 - Conference code: 75

PY - 2024

Y1 - 2024

N2 - Optimal breeding of insects requires genetic parameters for production traits. Performance may vary with the production environments, emphasising the need to investigate variance components and their interactions with environmental factors such as dietary regimes. In this study, a full-sib half-sib mating design was employed to estimate variance components for individually recorded larval size, dry mass, and fat content in an outbred population of house flies (Musca domestica) as well as correlations among these. 200 paternal half-sib groups with two full-sib groups each were established. The full-sib groups were reared either on a standard laboratory medium or a diet consisting of grass-protein waste. Variance components and correlations were estimated using uni- and bivariate linear mixed models for the traits measured within and across the dietary environments. We report variance components for all recorded traits as well as correlations between traits and unveil large effects of f ixed and random non-genetic variation on total phenotypic variation, providing useful information for the design of optimal breeding schemes.

AB - Optimal breeding of insects requires genetic parameters for production traits. Performance may vary with the production environments, emphasising the need to investigate variance components and their interactions with environmental factors such as dietary regimes. In this study, a full-sib half-sib mating design was employed to estimate variance components for individually recorded larval size, dry mass, and fat content in an outbred population of house flies (Musca domestica) as well as correlations among these. 200 paternal half-sib groups with two full-sib groups each were established. The full-sib groups were reared either on a standard laboratory medium or a diet consisting of grass-protein waste. Variance components and correlations were estimated using uni- and bivariate linear mixed models for the traits measured within and across the dietary environments. We report variance components for all recorded traits as well as correlations between traits and unveil large effects of f ixed and random non-genetic variation on total phenotypic variation, providing useful information for the design of optimal breeding schemes.

M3 - Conference abstract for conference

SP - 634

EP - 634

T2 - 75th EAAP Annual Meeting

Y2 - 1 September 2024 through 5 September 2024

ER -