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Abstract

>49 000 lactations and reproductive data of Holstein Friesian cows, recorded between 1995 and 2001 in Tunisia, were used in this study. Fertility parameters and heritability estimates of days to first service (DTFS), days open (DOP) and calving interval (CI) were 85 days and 0.03, 157 days and...

Author(s)
Hamouda, M. B.; M'rad, M. B.; Hemdene, M.
Publisher
Wageningen Academic Publishers, Wageningen, Netherlands
Citation
Performance recording of animals: state of the art 2004. Proceedings of the 34th Biennial Session of ICAR, Sousse, Tunisia, 28th May-3rd June, 2004, 2004, pp 71-76
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

The sustainability of beef production in the world demands the identification and selection of efficient animals that can produce more products with fewer inputs. Feed accounts for around 50-70% of variable costs of beef cattle systems, depending on the level of intensification adopted. Water has...

Author(s)
Menezes, G. R. O.; Gomes, R. C.; Ribas, M. N.; Torres Junior, R. A. A.; Fernandes Junior, J. A.; Pereira, G. M.; Fávero, R.; Silva, L. O. C.
Publisher
International Committee for Animal Recording (ICAR), Rome, Italy
Citation
ICAR Technical Series, 2018, No.23, pp 167-171
AbstractFull Text

In this study, we analyzed genetic parameter for foot and claw diseases/disorders from 29 377 lactations of 11 776 Holstein cows recorded on 7 farms in the Czech Republic from 2000 to 2016. Three groups of foot and claw diseases/disorders were defined: skin diseases (SD), including digital and...

Author(s)
Zavadilová, L.; Brzáková, M.; Kasná, E.; Stípková, M.
Publisher
International Committee for Animal Recording (ICAR), Rome, Italy
Citation
ICAR Technical Series, 2018, No.23, pp 263-267
AbstractFull Text

The International Genotype Exchange Platform "GenoEx" is being developed at the Interbull Centre, with financial support from Interbull, SLU and ICAR. The first service to be provided through this platform will be the Parentage SNP Exchange (GenoEx-PSE) service. GenoEx-PSE will be provided to...

Author(s)
Roozen, A. W. M.; Jorjani, H.; Doormaal, B. J. van
Publisher
International Committee for Animal Recording (ICAR), Rome, Italy
Citation
ICAR Technical Series, 2017, No.21, pp 71-77
AbstractFull Text

An Austrian wide health monitoring system for cattle has been established since 2006. A monitoring tool based on somatic cell count (SCC) is a further step for early and accurate awareness of subclinical mastitis cases. A logistic regression model based on the Dairy Herd Improvement (DHI) data for...

Author(s)
Winter, P.; Hofrichter, J.; Obritzhauser, W.; Zottl, K.; Egger-Danner, C.
Publisher
International Committee for Animal Recording (ICAR), Roma, Italy
Citation
ICAR Technical Series, 2010, No.14, pp 153-157
AbstractFull Text

With Herd Navigator frequent measurements ensures close monitoring of the herd to allow pro active action on a number of parameters such as reproduction parameters, mastitis, ketosis and urea. It is evident that alerts informing the herd manager about need for insemination or other immediate...

Author(s)
Asmussen, T.
Publisher
International Committee for Animal Recording (ICAR), Roma, Italy
Citation
ICAR Technical Series, 2010, No.14, pp 291-293
Abstract

A preliminary analysis of heteroskedasticity and genotype by environment interaction was performed with purebred Charolais data originating from different European countries. A sample of 114 829 200-day weights, recorded between 1992 and 2000 and stratified into six different origins (Ireland,...

Author(s)
Quintanilla, R.; Laloë, D.; Renand, G.
Publisher
Wageningen Academic Publishers, Wageningen, Netherlands
Citation
Performance recording of animals: state of the art 2002. Proceedings of the 33rd Biennial Session of ICAR, Interlaken, Switzerland, 26-31 May, 2002, 2003, pp 147-150
AbstractFull Text

Author(s)
Sievert, S.
Publisher
International Committee for Animal Recording (ICAR), Rome, Italy
Citation
ICAR Technical Series, 2018, No.23, pp 21
Abstract

Author(s)
Rosati, A.
Publisher
Wageningen Academic Publishers, Wageningen, Netherlands
Citation
Performance recording of animals: state of the art 2002. Proceedings of the 33rd Biennial Session of ICAR, Interlaken, Switzerland, 26-31 May, 2002, 2003, pp 199-207

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