Articles | Volume 63, issue 1
Arch. Anim. Breed., 63, 113–123, 2020
https://doi.org/10.5194/aab-63-113-2020
Arch. Anim. Breed., 63, 113–123, 2020
https://doi.org/10.5194/aab-63-113-2020

Original study 16 Apr 2020

Original study | 16 Apr 2020

Assessment of methane emission traits in ewes using a laser methane detector: genetic parameters and impact on lamb weaning performance

Jessica Reintke et al.

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Short summary
Methane (CH4) emissions represent an energy loss. Our study analyzes phenotypic and genetic relationships between ewe CH4 records (using a laser technique), energy efficiency traits and body weight development from their lambs (intergenerational perspective). Large levels of ewe CH4 emissions were genetically unfavorably correlated with lamb weight and ewe body condition traits, indicating improvements in lamb weaning performance and ewe energy efficiency when breeding in reduced CH4 emissions.