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Table showing full year results for each year from 2013 to 2020, plus results for 2021 to the date/week shown. The corresponding 2020 and 2021 data of the same week is also shown for comparison.
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| 05/05/21 | |||||||||||
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2013
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2014
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2015
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2016 | 2017 | 2018 | 2019 | 2020 | 2020 Week 18 |
2021 Week 18 |
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| Calves Tested | 2,095,867 | 2,131,963 | 2,264,838 | 2,325,244 | 2,347,535 | 2,347,414 | 2,344,554 | 2,376,729 | 1,589,880 | 1,731,229 | |
| % Negative | 98.03% | 98.54% | 98.85% | 99.20% | 98.85% | 98.58% | 98.96% | 99.10% | 99.14% | 99.25% | |
| % (Number) Positive* | 0.77% (16,192) | 0.50% (10,758) | 0.36% (8,246) | 0.20% (4,540) | 0.12% (2,843) | 0.07% (1,531) | 0.05% (1,111) | 0.03% (804) | 0.03% (404) | 0.02% (393) | |
| % (Number) Inconclusive* | 0.03% (661) | 0.01% (119) | 0.01% (207) | 0.00% (59) | 0.01% (118) | 0.00% (47) | 0.00% (15) | 0.00% (15) | 0.00% (13) | 0.00% (2) | |
| % (Number) Empty | 1.13% (23,751) | 0.92% (19,676) | 0.73% (16,637) | 0.59% (13,721) | 1.01% (23,715) | 1.33% (31,127) | 0.94% (22,081) | 0.81% (19,359) | 0.78% (12,455) | 0.71% (11,645) | |
| % (Number) BVD+**Calves with an initial positive or inconclusive result without a negative retest result | 0.66% (13,877) | 0.46% (9,733) | 0.33% (7,427) | 0.16% (3,808) | 0.1% (2,397) | 0.06% (1,325) | 0.04% (987) | 0.03% (720) | 0.02% (369) | 0.02% (381) | |
| % (Number) BVD+** recorded dead | 100% (13,876) | 100% (9,733) | 100% (7,427) | 100% (3,808) | 100% (2,397) | 100% (1,325) | 100% (987) | 100% (720) | 69.6% (257) | 89% (339) | |
| % (Number) of positive herds | 11.27% (9,484) | 7.63% (6,191) | 5.9% (4,771) | 3.25% (2,551) | 2.03% (1,614) | 1.14% (868) | 0.78% (573) | 0.56% (403) | 0.39% (226) | 0.36% (216) | |
| % (Number) of herds retaining one or more BVD+** calves born in stated year alive for more than 7 weeks (2013-2016), 5 weeks (2017 and 2018) or 3 weeks (2019) after the date of the first test |
0.00% (0) | 0.00% (0) | 0.00% (0) | 0.00% (0) | 0.00% (0) | 0.00% (0) | 0.00% (0) | 0.00% (1) | 0.4% (20) | 0.02% (9) | |
| No. of herds with Negative Herd Status | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 76,261 | 78,346 | |
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*Based on initial tag test result, prior to any confirmatory testing
**Calves with an initial positive or inconclusive result without a negative retest result |
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Click on the image to view maps of the number and distribution of BVD-positive animals born each year
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Click on the image to view a map of the number and distribution of BVD-positive animals that are still alive |
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Click on the image to view a map of the number and distribution of BVD-positive animals that are currently retained (alive more than 3 weeks after their initial test) |
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