Zobrazeno 1 - 10
of 146
pro vyhledávání: '"E.A. Mäntysaari"'
Estimating breeding values for feed efficiency in dairy cattle by regression on expected feed intake
Autor:
M.H. Lidauer, E. Negussie, E.A. Mäntysaari, P. Mäntysaari, S. Kajava, T. Kokkonen, A. Chegini, T. Mehtiö
Publikováno v:
Animal, Vol 17, Iss 9, Pp 100917- (2023)
The efficiency with which a dairy cow utilises feed for the various physiological and metabolic processes can be evaluated by metrics that contrast realised feed intake with expected feed intake. In this study, we presented a new metric – regressio
Externí odkaz:
https://doaj.org/article/8652e2fba79d4c108aac1156668c2002
Autor:
P. Mäntysaari, J. Juga, M.H. Lidauer, J. Häggman, T. Mehtiö, J.M. Christensen, E.A. Mäntysaari
Publikováno v:
Journal of Dairy Science, Vol 105, Iss 8, Pp 6833-6844 (2022)
ABSTRACT: The relationships between dairy cow milk-based energy status (ES) indicators and fertility traits were studied during periods 8 to 21, 22 to 35, 36 to 49, and 50 to 63 d in milk. Commencement of luteal activity (C-LA) and interval from calv
Externí odkaz:
https://doaj.org/article/9c649d9bfece424490ea1132c0a01146
Publikováno v:
JDS Communications, Vol 2, Iss 3, Pp 137-141 (2021)
Calculation of individual animal reliability of estimated genomic breeding value by SNP-BLUP requires inversion of the mixed model equations (MME). When the SNP-BLUP model includes a residual polygenic (RPG) effect, the size of the MME will be at lea
Externí odkaz:
https://doaj.org/article/3593822a76754ee4a7264ec3477e32d8
Publikováno v:
Animal, Vol 14, Iss 8, Pp 1588-1597 (2020)
Inclusion of feed efficiency traits into the dairy cattle breeding programmes will require considering early lactation energy status to avoid deterioration in health and fertility of dairy cows. In this regard, energy status indicator (ESI) traits, f
Externí odkaz:
https://doaj.org/article/49621d73db8b40a4a8c6ce32531f8918
Publikováno v:
Animal, Vol 15, Iss 12, Pp 100398- (2021)
Improving feed efficiency in dairy cattle by animal breeding has started in the Nordic countries. One of the two traits included in the applied Saved feed index is called maintenance and it is based on the breeding values for metabolic BW (MBW). Howe
Externí odkaz:
https://doaj.org/article/ca5f3eb9a2d14030b9513287ea7c64f6
Publikováno v:
Animal, Vol 13, Iss 2, Pp 248-255 (2019)
High-yielding cows may suffer from negative energy balance during early lactation, which can lead to ketosis and delayed ability of returning to cyclicity after calving. Fast recovery after calving is essential when breeding for improved fertility. T
Externí odkaz:
https://doaj.org/article/ef3a029973f84d2692c2efa06c1e5718
Autor:
E. Negussie, J. Lehtinen, P. Mäntysaari, A.R. Bayat, A.-E. Liinamo, E.A. Mäntysaari, M.H. Lidauer
Publikováno v:
Animal, Vol 11, Iss 5, Pp 890-899 (2017)
Attempts to lower the environmental footprint of milk production needs a sound understanding of the genetic and nutritional basis of methane (CH4) emissions from the dairy production systems. This in turn requires accurate and reliable techniques for
Externí odkaz:
https://doaj.org/article/291068cccc294b00a4644d74c0e8ac4c
Publikováno v:
Animal, Vol 10, Iss 6, Pp 1061-1066 (2016)
We studied the effect of including genomic data for cows in the reference population of single-step evaluations. Deregressed individual cow genetic evaluations (DRP) from milk production evaluations of Nordic Red Dairy cattle were used to estimate th
Externí odkaz:
https://doaj.org/article/71d046e2a519477992abd6db604a1510
Publikováno v:
Animal, Vol 4, Iss 2, Pp 183-188 (2010)
Mink skin size in Finland, as well as in other countries, has increased considerably during last decade. However, there are signs that selection for large body size has a negative impact on litter size (LS) and also for survival of kits. Therefore, i
Externí odkaz:
https://doaj.org/article/99800319b0c249d790213555a5bbd058
Publikováno v:
Agricultural and Food Science, Vol 16, Iss 2 (2008)
Pelt size has increased rapidly in the Finnish blue fox population during the last decade. However, average number of pups per mated female has slightly decreased after the mid-1990s. In this study we estimated genetic parameters of litter size in th
Externí odkaz:
https://doaj.org/article/929785bad15245fcbbac67a50a9687dd