Standard
Prediction of between-animal variation in N use efficiency in dairy cows from isotopic N signatures. / Correa-Luna, M.
; Johansen, Marianne; Nozière, P. et al.
Book of Abstracts of the 72nd Annual Meeting of the European Federation of Animal Science. ed. / E. Strandberg; L. Pinotti; S. Messori; D. Kenny; M. Lee; J.F. Hocquette; V.A.P. Cadavez; S. Millet; R. Evans; T. Veldkamp; M. Pastell; G. Pollott. Wageningen Academic Publishers, 2021. p. 603-603 (EAAP Book of Abstracts, Vol. 27).
Research output: Contribution to book/anthology/report/proceeding › Conference abstract in proceedings › Research › peer-review
Harvard
Correa-Luna, M
, Johansen, M, Nozière, P, Bayat, AR, Crompton, LA, Reynolds, CK, Froidmont, E, Edouard, N
, Lund, P, Martin, C & Cantalapiedra-Hijar, G 2021,
Prediction of between-animal variation in N use efficiency in dairy cows from isotopic N signatures. in E Strandberg, L Pinotti, S Messori, D Kenny, M Lee, JF Hocquette, VAP Cadavez, S Millet, R Evans, T Veldkamp, M Pastell & G Pollott (eds),
Book of Abstracts of the 72nd Annual Meeting of the European Federation of Animal Science. Wageningen Academic Publishers, EAAP Book of Abstracts, vol. 27, pp. 603-603, 72nd Annual Meeting of the European Federation of Animal Science, Davos, Switzerland,
29/08/2021.
https://doi.org/10.3920/978-90-8686-918-3APA
Correa-Luna, M.
, Johansen, M., Nozière, P., Bayat, A. R., Crompton, L. A., Reynolds, C. K., Froidmont, E., Edouard, N.
, Lund, P., Martin, C., & Cantalapiedra-Hijar, G. (2021).
Prediction of between-animal variation in N use efficiency in dairy cows from isotopic N signatures. In E. Strandberg, L. Pinotti, S. Messori, D. Kenny, M. Lee, J. F. Hocquette, V. A. P. Cadavez, S. Millet, R. Evans, T. Veldkamp, M. Pastell, & G. Pollott (Eds.),
Book of Abstracts of the 72nd Annual Meeting of the European Federation of Animal Science (pp. 603-603). Wageningen Academic Publishers. EAAP Book of Abstracts Vol. 27
https://doi.org/10.3920/978-90-8686-918-3CBE
Correa-Luna M
, Johansen M, Nozière P, Bayat AR, Crompton LA, Reynolds CK, Froidmont E, Edouard N
, Lund P, Martin C, et al. 2021.
Prediction of between-animal variation in N use efficiency in dairy cows from isotopic N signatures. Strandberg E, Pinotti L, Messori S, Kenny D, Lee M, Hocquette JF, Cadavez VAP, Millet S, Evans R, Veldkamp T, Pastell M, Pollott G, editors. In Book of Abstracts of the 72nd Annual Meeting of the European Federation of Animal Science. Wageningen Academic Publishers. pp. 603-603. (EAAP Book of Abstracts, Vol. 27).
https://doi.org/10.3920/978-90-8686-918-3MLA
Correa-Luna, M. et al.
"Prediction of between-animal variation in N use efficiency in dairy cows from isotopic N signatures"., Strandberg, E., Pinotti, L., Messori, S., Kenny, D., Lee, M. and Hocquette, J.F. Cadavez, V.A.P. Millet, S. Evans, R. Veldkamp, T. Pastell, M. Pollott, G. (editors).
Book of Abstracts of the 72nd Annual Meeting of the European Federation of Animal Science. Wageningen Academic Publishers. (EAAP Book of Abstracts, Vol. 27). 2021, 603-603.
https://doi.org/10.3920/978-90-8686-918-3Vancouver
Correa-Luna M
, Johansen M, Nozière P, Bayat AR, Crompton LA, Reynolds CK et al.
Prediction of between-animal variation in N use efficiency in dairy cows from isotopic N signatures. In Strandberg E, Pinotti L, Messori S, Kenny D, Lee M, Hocquette JF, Cadavez VAP, Millet S, Evans R, Veldkamp T, Pastell M, Pollott G, editors, Book of Abstracts of the 72nd Annual Meeting of the European Federation of Animal Science. Wageningen Academic Publishers. 2021. p. 603-603. (EAAP Book of Abstracts, Vol. 27). doi: 10.3920/978-90-8686-918-3
Author
Bibtex
@inbook{cd64e082848c462ebe507208cf45c564,
title = "Prediction of between-animal variation in N use efficiency in dairy cows from isotopic N signatures",
abstract = "Animal proteins are naturally enriched in 15N relative to the consumed diet and the 15N enrichment of animal proteins over the diet (Δ15N) has been recently shown to capture the between-animal variation in N use efficiency (NUE). The aim of this study was to evaluate the performance of a previous model to predict between-animal variability in NUE from measured Δ15N in lactating cows. The data included 990 records from 17 experiments comprising 164 contemporary groups (CG; group of cows fed the same diet at the same place and measuring period) with an average of 6 cows per CG. Samples of milk or plasma and feed were analysed for 15N and Δ15N was calculated as the 15N difference between animal proteins and diet. Measured NUE and Δ15N of each cow were expressed as their deviations from the average value of the CG they belonged to and noted as observed deviations. Predicted differences in NUE between each cow and its CG average value was calculated as 0.035 × observed deviations of Δ15N (according to the previous published model) and noted as predicted deviations. The coefficient of variation was 10 and 13% for observed NUE and Δ15N within CG, respectively. The correlation between observed and predicted deviations of NUE was positive in 84% of CG. Overall correlation coefficient between predicted and observed deviation of NUE was moderate but significant (r=0.50, P<0.001). The model error showed that Δ15N was able to identify between-animalvariability in NUE when the phenotypic deviations among cows surpassed 2.90 percent units. This study confirmed that regardless of the modest prediction accuracy of the validated model, the Δ15N biomarker was able to identifyphenotypes of contrasting NUE.",
author = "M. Correa-Luna and Marianne Johansen and P. Nozi{\`e}re and Bayat, {A. R.} and Crompton, {L A} and Reynolds, {C. K.} and Eric Froidmont and N. Edouard and Peter Lund and C. Martin and Gonzalo Cantalapiedra-Hijar",
year = "2021",
month = aug,
doi = "10.3920/978-90-8686-918-3",
language = "English",
isbn = "978-90-8686-366-2",
series = "EAAP Book of Abstracts",
publisher = "Wageningen Academic Publishers",
pages = "603--603",
editor = "E. Strandberg and L. Pinotti and S. Messori and D. Kenny and M. Lee and J.F. Hocquette and V.A.P. Cadavez and S. Millet and R. Evans and T. Veldkamp and M. Pastell and G. Pollott",
booktitle = "Book of Abstracts of the 72nd Annual Meeting of the European Federation of Animal Science",
note = "72nd Annual Meeting of the European Federation of Animal Science, EAAP ; Conference date: 29-08-2021 Through 03-09-2021",
}
RIS
TY - ABST
T1 - Prediction of between-animal variation in N use efficiency in dairy cows from isotopic N signatures
AU - Correa-Luna, M.
AU - Johansen, Marianne
AU - Nozière, P.
AU - Bayat, A. R.
AU - Crompton, L A
AU - Reynolds, C. K.
AU - Froidmont, Eric
AU - Edouard, N.
AU - Lund, Peter
AU - Martin, C.
AU - Cantalapiedra-Hijar, Gonzalo
PY - 2021/8
Y1 - 2021/8
N2 - Animal proteins are naturally enriched in 15N relative to the consumed diet and the 15N enrichment of animal proteins over the diet (Δ15N) has been recently shown to capture the between-animal variation in N use efficiency (NUE). The aim of this study was to evaluate the performance of a previous model to predict between-animal variability in NUE from measured Δ15N in lactating cows. The data included 990 records from 17 experiments comprising 164 contemporary groups (CG; group of cows fed the same diet at the same place and measuring period) with an average of 6 cows per CG. Samples of milk or plasma and feed were analysed for 15N and Δ15N was calculated as the 15N difference between animal proteins and diet. Measured NUE and Δ15N of each cow were expressed as their deviations from the average value of the CG they belonged to and noted as observed deviations. Predicted differences in NUE between each cow and its CG average value was calculated as 0.035 × observed deviations of Δ15N (according to the previous published model) and noted as predicted deviations. The coefficient of variation was 10 and 13% for observed NUE and Δ15N within CG, respectively. The correlation between observed and predicted deviations of NUE was positive in 84% of CG. Overall correlation coefficient between predicted and observed deviation of NUE was moderate but significant (r=0.50, P<0.001). The model error showed that Δ15N was able to identify between-animalvariability in NUE when the phenotypic deviations among cows surpassed 2.90 percent units. This study confirmed that regardless of the modest prediction accuracy of the validated model, the Δ15N biomarker was able to identifyphenotypes of contrasting NUE.
AB - Animal proteins are naturally enriched in 15N relative to the consumed diet and the 15N enrichment of animal proteins over the diet (Δ15N) has been recently shown to capture the between-animal variation in N use efficiency (NUE). The aim of this study was to evaluate the performance of a previous model to predict between-animal variability in NUE from measured Δ15N in lactating cows. The data included 990 records from 17 experiments comprising 164 contemporary groups (CG; group of cows fed the same diet at the same place and measuring period) with an average of 6 cows per CG. Samples of milk or plasma and feed were analysed for 15N and Δ15N was calculated as the 15N difference between animal proteins and diet. Measured NUE and Δ15N of each cow were expressed as their deviations from the average value of the CG they belonged to and noted as observed deviations. Predicted differences in NUE between each cow and its CG average value was calculated as 0.035 × observed deviations of Δ15N (according to the previous published model) and noted as predicted deviations. The coefficient of variation was 10 and 13% for observed NUE and Δ15N within CG, respectively. The correlation between observed and predicted deviations of NUE was positive in 84% of CG. Overall correlation coefficient between predicted and observed deviation of NUE was moderate but significant (r=0.50, P<0.001). The model error showed that Δ15N was able to identify between-animalvariability in NUE when the phenotypic deviations among cows surpassed 2.90 percent units. This study confirmed that regardless of the modest prediction accuracy of the validated model, the Δ15N biomarker was able to identifyphenotypes of contrasting NUE.
U2 - 10.3920/978-90-8686-918-3
DO - 10.3920/978-90-8686-918-3
M3 - Conference abstract in proceedings
SN - 978-90-8686-366-2
T3 - EAAP Book of Abstracts
SP - 603
EP - 603
BT - Book of Abstracts of the 72nd Annual Meeting of the European Federation of Animal Science
A2 - Strandberg, E.
A2 - Pinotti, L.
A2 - Messori, S.
A2 - Kenny, D.
A2 - Lee, M.
A2 - Hocquette, J.F.
A2 - Cadavez, V.A.P.
A2 - Millet, S.
A2 - Evans, R.
A2 - Veldkamp, T.
A2 - Pastell, M.
A2 - Pollott, G.
PB - Wageningen Academic Publishers
T2 - 72nd Annual Meeting of the European Federation of Animal Science
Y2 - 29 August 2021 through 3 September 2021
ER -
