From: Time trends and epidemiological patterns of perinatal lamb mortality in Norway
Year | Exclusions | |||||
---|---|---|---|---|---|---|
Ewes with a lambing date | Ewes with no lambsa | Ewes with >1 recordb | Ewes in flocks with incomplete recordsc | Ewes in the study | Lambs in the study | |
2000 | 281,380 | 2150 | 563 | 2036 | 276,631 | 554,007 |
2001 | 292,341 | 2053 | 1073 | 1938 | 287,277 | 580,445 |
2002 | 293,317 | 3137 | 865 | 1576 | 287,739 | 587,199 |
2003 | 295,714 | 3150 | 592 | 1092 | 290,880 | 601,980 |
2004 | 290,680 | 2277 | 972 | 1722 | 285,709 | 598,821 |
2005 | 291,193 | 3752 | 582 | 2337 | 284,522 | 598,771 |
2006 | 283,146 | 3311 | 297 | 1235 | 278,303 | 593,825 |
2007 | 272,728 | 2443 | 251 | 1479 | 268,555 | 573,721 |
2008 | 274,219 | 3851 | 215 | 2065 | 268,088 | 575,752 |
2009 | 292,088 | 21,443 | 124 | 1636 | 268,885 | 582,797 |
2010 | 288,536 | 17,187 | 154 | 1084 | 270,111 | 588,397 |