TY - JOUR
T1 - Group size planning for breedings of gene-modified mice and other organisms following Mendelian inheritance
AU - Milchevskaya, Vladislava
AU - Bugnon, Philippe
AU - ten Buren, Emiel B.J.
AU - Vanhecke, Dominique
AU - Brand, Frank
AU - Tresch, Achim
AU - Buch, Thorsten
N1 - Publisher Copyright:
© 2023, The Author(s).
PY - 2023/8
Y1 - 2023/8
N2 - Colony management of gene-modified animals is time-consuming, costly and affected by random events related to Mendelian genetics, fertility and litter size. Careful planning is mandatory to ensure successful outcomes using the least number of animals, hence adhering to the 3R principles of animal welfare. Here we have developed an R package, accessible also through an interactive public website, that optimizes breeding design by providing information about the optimal number of breedings needed to obtain defined breeding outcomes, taking into account specific species, strain, or line properties and success probability. Our software also enables breeding planning for balanced male-to-female ratio or single-sex experiments. We show that, for single-sex designs, the necessary number of breedings is at least doubled compared to the use of all born animals. While the presented tool provides preset parameters for the laboratory mouse, it can be readily used for any other species.
AB - Colony management of gene-modified animals is time-consuming, costly and affected by random events related to Mendelian genetics, fertility and litter size. Careful planning is mandatory to ensure successful outcomes using the least number of animals, hence adhering to the 3R principles of animal welfare. Here we have developed an R package, accessible also through an interactive public website, that optimizes breeding design by providing information about the optimal number of breedings needed to obtain defined breeding outcomes, taking into account specific species, strain, or line properties and success probability. Our software also enables breeding planning for balanced male-to-female ratio or single-sex experiments. We show that, for single-sex designs, the necessary number of breedings is at least doubled compared to the use of all born animals. While the presented tool provides preset parameters for the laboratory mouse, it can be readily used for any other species.
UR - http://www.scopus.com/inward/record.url?scp=85165473966&partnerID=8YFLogxK
U2 - 10.1038/s41684-023-01213-1
DO - 10.1038/s41684-023-01213-1
M3 - Article
AN - SCOPUS:85165473966
SN - 0093-7355
VL - 52
SP - 183
EP - 188
JO - Lab Animal
JF - Lab Animal
IS - 8
ER -