Effects of herd mean and standard deviation on cow indexes for milk , and adjustments of cow indexes for these effects
Lactation records of cows born since 1964 were used to compute Cow Indexes (CI) for 581,519 Holsteins and 352,758 Jerseys. CI were used to predict Modified Contemporary Deviations (MCD) of daughters at three levels each of herd mean (µ) and standard deviation (σ), and regressions were compared to ex...
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| Format: | Others |
| Language: | en_US |
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Virginia Polytechnic Institute and State University
2017
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| Online Access: | http://hdl.handle.net/10919/74698 |