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Akademický článek

Assessing different cross-validation schemes for predicting novel traits using sensor data: An application to dry matter intake and residual feed intake using milk spectral data

Autor: A. Yilmaz Adkinson, M. Abouhawwash, M.J. VandeHaar, K.L. Parker Gaddis, J. Burchard, F. Peñagaricano, H.M. White, K.A. Weigel, R. Baldwin, J.E.P. Santos, J.E. Koltes, R.J. Tempelman

Publikováno v: Journal of Dairy Science, Vol 107, Iss 10, Pp 8084-8099 (2024)

ABSTRACT: Feed efficiency is important for economic profitability of dairy farms; however, recording daily DMI is expensive. Our objective was to investigate the potential use of milk mid-infrared (MIR) spectral data to predict proxy phenotypes for D

Externí odkaz: https://doaj.org/article/b359eab555624d5d891a0d8a8894e895

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Akademický článek

Estimation of genetic parameters for feed efficiency traits using random regression models in dairy cattle

Autor: K. Houlahan, F.S. Schenkel, F. Miglior, J. Jamrozik, R.B. Stephansen, O. González-Recio, N. Charfeddine, D. Segelke, A.M. Butty, P. Stratz, M.J. VandeHaar, R.J. Tempelman, K. Weigel, H. White, F. Peñagaricano, J.E. Koltes, J.E.P. Santos, R.L. Baldwin, VI, C.F. Baes

Publikováno v: Journal of Dairy Science, Vol 107, Iss 3, Pp 1523-1534 (2024)

ABSTRACT: Feed efficiency has become an increasingly important research topic in recent years. As feed costs rise and the environmental impacts of agriculture become more apparent, improving the efficiency with which dairy cows convert feed to milk i

Externí odkaz: https://doaj.org/article/ceace4e1b7be4c618f7868a902959795

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Akademický článek

Novel genetic parameters for genetic residual feed intake in dairy cattle using time series data from multiple parities and countries in North America and Europe

Publikováno v: Journal of Dairy Science, Vol 106, Iss 12, Pp 9078-9094 (2023)

ABSTRACT: Residual feed intake is viewed as an important trait in breeding programs that could be used to enhance genetic progress in feed efficiency. In particular, improving feed efficiency could improve both economic and environmental sustainabili

Externí odkaz: https://doaj.org/article/f059b94bb385437f8220ccc4e0ce7807

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Akademický článek

Predicting dry matter intake in mid-lactation Holstein cows using point-in-time data streams available on dairy farms

Autor: W.E. Brown, M.J. Caputo, C. Siberski, J.E. Koltes, F. Peñagaricano, K.A. Weigel, H.M. White

Publikováno v: Journal of Dairy Science, Vol 105, Iss 12, Pp 9666-9681 (2022)

ABSTRACT: Quantifying dry matter intake (DMI) in lactating dairy cows is important for determining feed efficiency; however, there are no methods for economically quantifying individual cow DMI on dairy farms where cows are group-fed. Attempts have b

Externí odkaz: https://doaj.org/article/33e02210665c4163a158be5e350f27dd

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Akademický článek

Multiple-trait random regression modeling of feed efficiency in US Holsteins

Autor: P. Khanal, K.L. Parker Gaddis, M.J. Vandehaar, K.A. Weigel, H.M. White, F. Peñagaricano, J.E. Koltes, J.E.P. Santos, R.L. Baldwin, J.F. Burchard, J.W. Dürr, R.J. Tempelman

Publikováno v: Journal of Dairy Science, Vol 105, Iss 7, Pp 5954-5971 (2022)

ABSTRACT: Residual feed intake (RFI) and feed saved (FS) are important feed efficiency traits that have been increasingly considered in genetic improvement programs. Future sustainability of these genetic evaluations will depend upon greater flexibil

Externí odkaz: https://doaj.org/article/4474809b91e24f749112ed10a83d89c8

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Akademický článek

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Akademický článek

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Akademický článek

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K zobrazení výsledku je třeba se přihlásit.

Multiple-trait random regression modeling of feed efficiency in US Holsteins

Autor: P. Khanal, K.L. Parker Gaddis, M.J. Vandehaar, K.A. Weigel, H.M. White, F. Peñagaricano, J.E. Koltes, J.E.P. Santos, R.L. Baldwin, J.F. Burchard, J.W. Dürr, R.J. Tempelman

Publikováno v: Journal of dairy science. 105(7)

Residual feed intake (RFI) and feed saved (FS) are important feed efficiency traits that have been increasingly considered in genetic improvement programs. Future sustainability of these genetic evaluations will depend upon greater flexibility to acc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9932fdd263b22028e903aa6c42271e8
https://pubmed.ncbi.nlm.nih.gov/35636997

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