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AbstractFull Text

Fourier-transform mid-infrared (FTIR) milk spectra data is routinely collected within milk recording programs of different countries. This information can be used both for assessing milk composition and for genetic evaluations. Establishing an optimal strategy for the use of spectra data in genetic ...

Author(s)
Rovere, G.; Campos, G. de los; Tempelman, R. J.; Vazquez, A. I.; Miglior, F.; Schenkel, F.; Cecchinato, A.; Bittante, G.; Toledo-Alvarado, H.
Publisher
International Committee for Animal Recording (ICAR), Rome, Italy
Citation
ICAR Technical Series, 2018, No.23, pp 127-134
AbstractFull Text

Recent research showed the usefulness of using estimated breeding values (EBV) for mid-infrared (MIR) based biomarkers in genetic improvement. A novel class of biomarkers was defined based on modelling responses of milk composition (e.g., mid-infrared (MIR) based) to stress expressed on continuous...

Author(s)
Mineur, A.; Mota, R. R.; Gengler, N.; Vanderick, S.; Hammami, H.
Publisher
International Committee for Animal Recording (ICAR), Rome, Italy
Citation
ICAR Technical Series, 2018, No.23, pp 229-234
AbstractFull Text

This study was conducted to test the hypothesis that a combination of more frequently, but less accurately analysed milk components should give a more representative measure of a cow′s longer term milk composition than a DHIA sample taken once per month. Systematic biases with respect to stage of...

Author(s)
Lavon, Y.; Weller, J. I.; Ezra, E.
Publisher
International Committee for Animal Recording (ICAR), Rome, Italy
Citation
ICAR Technical Series, 2017, No.21, pp 113-129
AbstractFull Text

This survey looks at the plausibility checks used at data capture of a few key data sets in milk recording organisations around the world. The aim of these checks is to keep the data integral, with no internal discrepancies. We found that the most important plausibility checks are almost universal, ...

Author(s)
Kyntäjä, J.; Alday, S.; Barras, E.; Bhagat, R. L.; Bucek, P.; Craven, T.; Feeney, L.; Galvanovska, E.; Haase, K.; High, J.; Jóhannesson, G.; Kuwan, K.; Larsson, N. L.; Lauritsen, U.; Lavon, Y.; Mikalsen, V.; Pecinar, M.; Radzio, D.; Rapaioli, F.
Publisher
International Committee for Animal Recording (ICAR), Rome, Italy
Citation
ICAR Technical Series, 2018, No.23, pp 179-183
AbstractFull Text

Genetic evaluation beyond common economic traits are necessary in tropical sire summary. Thailand Tropical Holstein dairy cattle has been development for improvement of milk yield (MY), milk composition (Fat, Protein, SNF), SCC, days open under tropical environment for decades. Nowadays, there are...

Author(s)
Duangjinda, M.; Boonkum, W.; Puangdee, S.; Saowaphak, P.; Chareonsin, S.; Chankitisakul, V.; Buaban, S.
Publisher
International Committee for Animal Recording (ICAR), Rome, Italy
Citation
ICAR Technical Series, 2018, No.23, pp 155-160
AbstractFull Text

Milk samples were collected from all milkings and from all the automatic milking system (AMS) and were analysed for fat, protein, lactose and SCC (n=10, 10, 7 and 6 farms, respectively). All herds were comprised of mostly Holstein cows and herd size was on average 74±15 milking cows. Data on milk...

Author(s)
Fadul-Pacheco, L.; Lacroix, R.; Séguin, M.; Grisé, M.; Vasseur, E.; Lefebvre, D. M.
Publisher
International Committee for Animal Recording (ICAR), Rome, Italy
Citation
ICAR Technical Series, 2018, No.23, pp 53-63
AbstractFull Text

Temperature and humidity levels above a certain threshold decrease milk production in dairy cows, and there is genetic variation associated with the amount of lost production. To enable selection for improved heat tolerance, we first developed genomic estimated breeding values (GEBV) for heat...

Author(s)
Nguyen, T. T. T.; Garner, J.; Douglas, M.; Williams, R. O.; Wales, W. J.; Marett, L. C.; Bowman, P. J.; Reich, C.; Haile-Mariam, M.; Pryce, J. E.; Wales, W.; Abernethy, D.; Nieuwhof, G. J.; Hayes, B. J.
Publisher
International Committee for Animal Recording (ICAR), Rome, Italy
Citation
ICAR Technical Series, 2017, No.21, pp 85-92
AbstractFull Text

The objective of this work is to provide an overview on (a) the validation and certification of FOSS's milk analysers, (b) working with FTIR technology/data and standardisation as part of quality assurance as well as (c) quality assurance for new milk-testing parameters. Besides extensive internal...

Author(s)
Schwarz, D.
Publisher
International Committee for Animal Recording (ICAR), Rome, Italy
Citation
ICAR Technical Series, 2018, No.23, pp 23-29
AbstractFull Text

Partial least square (PLS) models were developed from Fourier transform mid-infrared (MIR) spectra, externally validated, and are being used commercially in the US for direct measurement of: * Groups of milk fatty acids [i.e., de novo (DN), mixed origin (MO), and preformed fatty (PF) acids] * Fatty ...

Author(s)
Barbano, D. M.; Dann, H. M.; Melilli, C.; Grant, R. J.
Publisher
International Committee for Animal Recording (ICAR), Rome, Italy
Citation
ICAR Technical Series, 2018, No.23, pp 101-118
AbstractFull Text

Comprehensive new selection indices have been developed for Holstein, Jersey (Dairy) and Bonsmara (Beef) breeds in South Africa. In all cases the developments were based on the common practices followed in local production systems, biological knowledge, prices realised for the products, costs of...

Author(s)
Westhuizen, J. van der; Westhuizen, R. R. van der; Banga, C. B.; Theron, H. E.
Publisher
International Committee for Animal Recording (ICAR), Roma, Italy
Citation
ICAR Technical Series, 2010, No.14, pp 199-204

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