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pro vyhledávání: '"Tefera, Sileshi"'
Data collected from 1974 to 2015(42 years) on crossbred dairy cows maintained at Holetta Agricultural Research Centre were used to estimate genetic parameters for lifetime traits. These traits were total life, herd life, productive life, lifetime mil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cda9c925b83e5201c28e954ca7df4de5
The objective of this study was to analyze the lifetime performance of crossbred dairy cattle in the Central highland of Ethiopia. Birth year records of 502 cows maintained at Holetta Agricultural Research Centre from 1974 through 2015 were used to e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2dfe6115d7ab1bb65ba694a7ec3ab419