Genetic parameters for cow-specific digestibility predicted by near infrared reflectance spectroscopy

Terhi Mehtiö, Päivi Mäntysaari, Tuomo Kokkonen, Sari Kajava, Egil Prestløkken, Alemayehu Kidane, Sini Wallén, Laura Nyholm, Enyew Negussie, Esa A. Mäntysaari, Martin H. Lidauer

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Digestibility 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.
Original languageEnglish
JournalLivestock Science
Volume226
Pages (from-to)1-6
Number of pages6
ISSN1871-1413
DOIs
Publication statusPublished - Aug 2019
MoE publication typeA1 Journal article-refereed

Fields of Science

  • 412 Animal science, dairy science
  • Dairy cow
  • Digestibility
  • Heritability
  • Near infrared reflectance spectroscopy

Cite this

Mehtiö, Terhi ; Mäntysaari, Päivi ; Kokkonen, Tuomo ; Kajava, Sari ; Prestløkken, Egil ; Kidane, Alemayehu ; Wallén, Sini ; Nyholm, Laura ; Negussie, Enyew ; Mäntysaari, Esa A. ; Lidauer, Martin H. / Genetic parameters for cow-specific digestibility predicted by near infrared reflectance spectroscopy. In: Livestock Science. 2019 ; Vol. 226. pp. 1-6.
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title = "Genetic parameters for cow-specific digestibility predicted by near infrared reflectance spectroscopy",
abstract = "Digestibility 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.",
keywords = "412 Animal science, dairy science, Dairy cow, Digestibility, Heritability, Near infrared reflectance spectroscopy",
author = "Terhi Mehti{\"o} and P{\"a}ivi M{\"a}ntysaari and Tuomo Kokkonen and Sari Kajava and Egil Prestl{\o}kken and Alemayehu Kidane and Sini Wall{\'e}n and Laura Nyholm and Enyew Negussie and M{\"a}ntysaari, {Esa A.} and Lidauer, {Martin H.}",
year = "2019",
month = "8",
doi = "10.1016/j.livsci.2019.05.017",
language = "English",
volume = "226",
pages = "1--6",
journal = "Livestock Science",
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Mehtiö, T, Mäntysaari, P, Kokkonen, T, Kajava, S, Prestløkken, E, Kidane, A, Wallén, S, Nyholm, L, Negussie, E, Mäntysaari, EA & Lidauer, MH 2019, 'Genetic parameters for cow-specific digestibility predicted by near infrared reflectance spectroscopy', Livestock Science, vol. 226, pp. 1-6. https://doi.org/10.1016/j.livsci.2019.05.017

Genetic parameters for cow-specific digestibility predicted by near infrared reflectance spectroscopy. / Mehtiö, Terhi; Mäntysaari, Päivi; Kokkonen, Tuomo; Kajava, Sari; Prestløkken, Egil; Kidane, Alemayehu; Wallén, Sini; Nyholm, Laura; Negussie, Enyew; Mäntysaari, Esa A.; Lidauer, Martin H.

In: Livestock Science, Vol. 226, 08.2019, p. 1-6.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Genetic parameters for cow-specific digestibility predicted by near infrared reflectance spectroscopy

AU - Mehtiö, Terhi

AU - Mäntysaari, Päivi

AU - Kokkonen, Tuomo

AU - Kajava, Sari

AU - Prestløkken, Egil

AU - Kidane, Alemayehu

AU - Wallén, Sini

AU - Nyholm, Laura

AU - Negussie, Enyew

AU - Mäntysaari, Esa A.

AU - Lidauer, Martin H.

PY - 2019/8

Y1 - 2019/8

N2 - Digestibility 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.

AB - Digestibility 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.

KW - 412 Animal science, dairy science

KW - Dairy cow

KW - Digestibility

KW - Heritability

KW - Near infrared reflectance spectroscopy

U2 - 10.1016/j.livsci.2019.05.017

DO - 10.1016/j.livsci.2019.05.017

M3 - Article

VL - 226

SP - 1

EP - 6

JO - Livestock Science

JF - Livestock Science

SN - 1871-1413

ER -