Text and Data Mining valid from 2018-09-12
First Online: 12 September 2018
Compliance with Ethical Standards
: On behalf of all authors, the corresponding author states that there is no conflict of interest.
: All applicable international, national, and institutional guidelines for the care and use of animals were followed. The study was preapproved by the National Animal Research Authority (NARA) and was carried out according to the Norwegian laws and regulations controlling experiments/procedures using live animals with the identification number: id8278.Some of the data were previously presented in a poster at the annual ABAI conference in Minneapolis in May 2013. This work has not been previously published nor is this work under consideration for publication elsewhere.