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Articles | Volume 63, issue 1
Articles | Volume 63, issue 1
https://doi.org/10.5194/aab-63-113-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/aab-63-113-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 63, issue 1
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, Kerstin Brügemann, Tong Yin, Petra Engel, Henrik Wagner, Axel Wehrend, and Sven König

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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.
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