Effect of single and multiple pregnancies on performance of primiparous and multiparous cows
Data on 393 002 parturitions and performance in the following production cycle were collected from the SYMLEK database for 145 457 Polish Holstein-Friesian cows representing the active population in the Pomorze and Kujawy regions. The animals first calved during 2000–2012 and were used or culled by...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2015-03-01
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| Series: | Archives Animal Breeding |
| Online Access: | http://www.arch-anim-breed.net/58/43/2015/aab-58-43-2015.pdf |