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An ICAR recommendation sheet for udder health & estimation of genetic parameters for udder health |
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Author: Hiemstra, Groen, Bovenhuis, Ducro, de Jong |
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State: Global Year: 2002 |
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Excerpt: An upgrade of the present-day udder health index seems worth while. It seems that somatic cell score can keep its heavy weight in the udder health index, just as udder depth. An extremely high or low milking speed might need to be given a negative weigth.
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Breeding for Improved Resistance to Mastitis |
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Author: Rogers |
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State: TN Year: 2001 |
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Excerpt: Mastitis resistance should be considered in a breeding program. Selection for lower SCS will improve mastitis
resistance. Selection for higher more tightly attached
udders will reduce mastitis.
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Evaluation Summary for Udder Health Traits - quarterly summary |
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Author: Emanuelson, Mark, Jorjani, Fikse, Philipsson, Englund |
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State: Global Year: 2002 |
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Excerpt: International genetic evaluations for milk somatic cell & clinical mastitis of bulls.
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Genetic evaluations for mastitis & relationship between mastitis
& udder type |
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Author: Rogers |
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State: PA Year: 1997 |
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Excerpt: Selection to reduce clinical mastitis is justified. In the absence of high quality direct recording of clinical mastitis, somatic cell score & some udder traits can very effectively serve as tools for selection.
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Genetic Improvement of Udder Traits & Milk Quality |
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Author: Weigel |
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State: WI Year: 2003 |
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Excerpt: Costs of clinical & subclinical mastitis, Clinical mastitis or somatic cell score (SCS)?, Interpretation of somatic cell count (SCC) & SCS, Genetic evaluation of SCS, Relationship between SCS & other traits, Impact of udder traits on cow survival
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How to select cows that are more resistant to mastitis |
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Author: Dairy Australia |
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State: Australia Year: 2002 |
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Excerpt: The benefits of adding genetic improvement to your mastitis control tool kit can be considerable. ADHIS estimates the difference between the best (-60) & worst (+60) bull for cell count ABV to be worth about $40 per cow per year.
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