Zobrazeno 1 - 10
of 497
pro vyhledávání: '"N. Gengler"'
Publikováno v:
JDS Communications, Vol 5, Iss 5, Pp 368-373 (2024)
The increase in periods of heat waves leads to an increase in heat stress events in dairy cattle leading to welfare issues, production losses, and health issues. However, the low frequency of milk recording data makes genetic evaluation for heat tole
Externí odkaz:
https://doaj.org/article/7fa228df4fec41e09c88dc9450c1a1fc
Publikováno v:
Journal of Dairy Science, Vol 107, Iss 5, Pp 3020-3031 (2024)
ABSTRACT: The aims of this study were to conduct a single-step genome-wide association to identify genomic regions associated with milk urea (MU) and to estimate genetic correlations between MU and milk yield (MY), milk composition (calcium content [
Externí odkaz:
https://doaj.org/article/3b7f8b12b46c407c99f3310761b76eaf
Autor:
C. Grelet, T. Larsen, M.A. Crowe, D.C. Wathes, C.P. Ferris, K.L. Ingvartsen, C. Marchitelli, F. Becker, A. Vanlierde, J. Leblois, U. Schuler, F.J. Auer, A. Köck, L. Dale, J. Sölkner, O. Christophe, J. Hummel, A. Mensching, J.A. Fernández Pierna, H. Soyeurt, M. Calmels, R. Reding, M. Gelé, Y. Chen, N. Gengler, F. Dehareng
Publikováno v:
Journal of Dairy Science, Vol 107, Iss 3, Pp 1669-1684 (2024)
ABSTRACT: At the individual cow level, suboptimum fertility, mastitis, negative energy balance, and ketosis are major issues in dairy farming. These problems are widespread on dairy farms and have an important economic impact. The objectives of this
Externí odkaz:
https://doaj.org/article/ce689e1d98a64dbd945ccb7366c5b436
Autor:
S. Fresco, A. Vanlierde, D. Boichard, R. Lefebvre, M. Gaborit, R. Bore, S. Fritz, N. Gengler, P. Martin
Publikováno v:
Animal, Vol 18, Iss 7, Pp 101200- (2024)
Predicting methane (CH4) emission from milk mid-infrared (MIR) spectra provides large amounts of data which is necessary for genomic selection. Recent prediction equations were developed using the GreenFeed system, which required averaging multiple C
Externí odkaz:
https://doaj.org/article/95b4dc4751384fd0a4ff8d4116f46cb7
Autor:
H. Soyeurt, X.-L. Wu, C. Grelet, M.L. van Pelt, N. Gengler, F. Dehareng, C. Bertozzi, J. Burchard
Publikováno v:
Journal of Dairy Science, Vol 106, Iss 12, Pp 9095-9104 (2023)
ABSTRACT: The use of milk Fourier transform mid-infrared (FT-MIR) spectrometry to develop management and breeding tools for dairy farmers and industry is growing and supported by the availability of numerous new predicted phenotypes to assess the nut
Externí odkaz:
https://doaj.org/article/5a72fb081fc04c6f9872ae7b98a8de48
Publikováno v:
Journal of Dairy Science, Vol 106, Iss 11, Pp 7816-7831 (2023)
ABSTRACT: This study aimed to perform genome-wide association study to identify genomic regions associated with milk production and cheese-making properties (CMP) in Walloon Holstein cows. The studied traits were milk yield, fat percentage, protein p
Externí odkaz:
https://doaj.org/article/f0a0c6b6b11044b18886d388d9cea22a
Publikováno v:
Journal of Dairy Science, Vol 106, Iss 9, Pp 6299-6315 (2023)
ABSTRACT: The aim of this study was to estimate genetic parameters and identify genomic regions associated with selected individual and groups of milk fatty acids (FA) predicted by milk mid-infrared spectrometry in Dual-Purpose Belgian Blue cows. The
Externí odkaz:
https://doaj.org/article/bfb483a6c48840399ff48a5486ac7a9b
Publikováno v:
Journal of Dairy Science, Vol 106, Iss 7, Pp 4471-4488 (2023)
ABSTRACT: Heat stress implies unfavorable effects on primary and functional traits in dairy cattle and, in consequence, on the profitability of the whole production system. The increasing number of days with extreme hot temperatures suggests that it
Externí odkaz:
https://doaj.org/article/fc74bedbadc0484dbd054b2f5a6c4571
Publikováno v:
Journal of Dairy Science, Vol 105, Iss 11, Pp 8972-8988 (2022)
ABSTRACT: This study aimed to estimate genetic parameters and identify genomic region(s) associated with selected cheese-making properties (CMP) in Dual-Purpose Belgian Blue (DPBB) cows. Edited data were 46,301 test-day records of milk yield, fat per
Externí odkaz:
https://doaj.org/article/7f62bd6577e74afa92c49f3ab247cccf
Publikováno v:
Journal of Dairy Science, Vol 105, Iss 9, Pp 7575-7587 (2022)
ABSTRACT: The purposes of this study were (1) to explore the relationship between 3 milk mid-infrared predicted features including nitrogen intake (NINT), milk true protein N (MTPN), and milk urea-N yield (MUNY); (2) to integrate these 3 features int
Externí odkaz:
https://doaj.org/article/be685fd370d04a3bb6bfdae0d04f5909