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dc.contributor.authorMehtio, Terhi
dc.contributor.authorMäntysaari, Päivi
dc.contributor.authorKokkonen, Tuomo
dc.contributor.authorKajava, Sari
dc.contributor.authorPrestløkken, Egil
dc.contributor.authorKidane, Alemayehu
dc.contributor.authorWallén, Sini Elina
dc.contributor.authorNyholm, Laura
dc.contributor.authorNegussie, Enyew
dc.contributor.authorMantysaari, Esa A.
dc.contributor.authorLidauer, Martin H.
dc.identifier.citationLivestock Science. 2019, 226 1-6.nb_NO
dc.description.abstractDigestibility traits included in this study were dry matter digestibility (DMD, g/kg), which was calculated based on the indigestible neutral detergent fibre (iNDF, g/kg of dry matter) content in faeces (iNDFf) and in diet (iNDFd), and iNDFf predicted directly from faecal samples by near infrared reflectance spectroscopy (NIRS). The data set was collected at three research herds in Finland and one in Norway including in total 931 records from 328 lactating Nordic Red Cattle and Holstein cows. Observations were associated with different accuracy, due to the differences in sampling protocols used for collecting faecal samples. Heritability estimates varied between different sampling protocols and ranged from 0.14 ± 0.06 to 0.51 ± 0.24 for DMD and from 0.13 ± 0.05 to 0.48 ± 0.18 for iNDFf. Estimated genetic standard deviations were 10.5 g/kg and 6.2 g/kg dry matter for DMD and iNDFf, respectively. Results of our study indicated that recording only the iNDF content in the faeces is sufficient to determine genetic variation in cows’ ability to digest feed. The coefficient of genetic variation for DMD was rather small (1.7%), but could be utilized if it is supported by a positive analysis of benefits over costs.nb_NO
dc.description.abstractGenetic parameters for cow-specific digestibility predicted by near infrared reflectance spectroscopynb_NO
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internasjonal*
dc.titleGenetic parameters for cow-specific digestibility predicted by near infrared reflectance spectroscopynb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.source.journalLivestock Sciencenb_NO
cristin.unitnameInstitutt for husdyr- og akvakulturvitenskap

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Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal
Med mindre annet er angitt, så er denne innførselen lisensiert som Attribution-NonCommercial-NoDerivatives 4.0 Internasjonal