Genetic analysis of longevity in the Canadian and New Zealand dairy herds
Two longevity measures, duration of productive life (DP) and duration of total life (DT) were investigated. Within each of these measures, two traits were defined based on the definition of failure of the cows. The first definition considered cows to have failed only if they were disposed of due t...
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| Format: | Others |
| Language: | English |
| Published: |
2009
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| Online Access: | http://hdl.handle.net/2429/7446 |