PEDIGREE INDEXING YOUNG HOLSTEIN DAIRY BULLS USING ANCESTRAL INFORMATION FROM DIFFERENT COUNTRIES
نویسندگان
چکیده
منابع مشابه
Progeny testing and selection intensity for Holstein bulls in different countries.
International Bull Evaluation Service (Interbull) Holstein evaluations from February 1995 through February 2003 were used to determine characteristics of progeny testing for Holstein bulls in Australia, Canada, Denmark, France, Germany, Italy, New Zealand, Sweden, The Netherlands, and the United States. The decision to graduate a bull from progeny test (PT) was assumed to have been made based o...
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Fifty-four Holstein bulls were blocked by initial BW (301 +/- 7.4 kg) and randomly assigned to 6 treatments following a 3 x 2 factorial arrangement, with 3 concentrate lipid levels (5, 8, and 11% of DM) and 2 lipid sources (whole canola seed and whole linseed), with the objective of evaluating the possibility of increasing the content of n-3 fatty acids in meat. Concentrates (mostly corn meal) ...
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In general the importance of functional traits is increasing in all dairy cattle populations over the last decade. Beside udder and fertility problems claw and foot disorders are main involuntary culling reasons. Linear description of feet and leg traits in the frame of conformation scoring didn’t reduce claw and leg problems as expected. Therefore new ways of data recording should be establish...
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A logistic (regulated population size) branching process is presented, and compared to a regular branching process and the Wright-Fisher model for properties including the coalescent time and the shape of the coalescent process. The similarity of these properties for the logistic branching process and the Wright-Fisher and regular banching process models indicates that these models are reasonab...
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The purpose of this work was to produce and compare liver proteomic maps of cattle breeds that have been selected for different purposes: dairy (Holstein) and beef (Chianina). Liver was chosen because it displays functions of synthesis, homeostasis, excretion, and defense. Two dimensional electrophoresis analyses were performed on bovine livers collected from 4 individuals of each breed to eval...
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ژورنال
عنوان ژورنال: Canadian Journal of Animal Science
سال: 1986
ISSN: 0008-3984,1918-1825
DOI: 10.4141/cjas86-098