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Table showing full year results for 2013, 2014, 2015 and 2016, 2017, 2018 and 2019 plus results for 2020 to the date/week shown. The corresponding 2019 and 2020 data of the same week is also shown for comparison.
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| 13/01/21 | |||||||||||
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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 2 |
2021 Week 2 |
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| Calves Tested | 2,095,890 | 2,131,968 | 2,264,872 | 2,325,277 | 2,347,617 | 2,346,051 | 2,343,694 | 2,355,174 | 830 | 4,373 | |
| % Negative | 98.03% | 98.54% | 98.85% | 99.20% | 98.85% | 98.58% | 98.96% | 99.10% | 98.92% | 99.31% | |
| % (Number) Positive* | 0.77% (16,193) | 0.50% (10,758) | 0.36% (8,247) | 0.20% (4,540) | 0.12% (2,843) | 0.07% (1,531) | 0.05% (1,111) | 0.03% (790) | 0.00% (0) | 0.05% (2) | |
| % (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% (0) | 0.00% (0) | |
| % (Number) Empty | 1.13% (23,751) | 0.92% (19,676) | 0.73% (16,637) | 0.59% (13,720) | 1.01% (23,715) | 1.33% (31,131) | 0.94% (22,066) | 0.81% (19,013) | 0.96% (8) | 0.64% (28) | |
| % (Number) PI** | 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% (714) | 0.00% (0) | 0.05% (2) | |
| % (Number) PI** recorded dead | 100% (13,876) | 100% (9,733) | 100% (7,427) | 100% (3,808) | 100% (2,397) | 100% (1,325) | 100% (987) | 98.2% (701) | 0.00% (0) | 0.00% (0) | |
| % (Number) of positive herds | 11.27% (9,484) | 7.63% (6,191) | 5.9% (4,770) | 3.25% (2,549) | 2.03% (1,613) | 1.13% (865) | 0.78% (571) | 0.55% (392) | 0.00% (0) | 0.05% (0) | |
| % (Number) of herds retaining one or more PI** 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% (1) | 0.00% (0) | 0.01% (5) | 0.00% (0) | 0.00% (0) | |
| No. of herds with Negative Herd Status | N/A | N/A | N/A | N/A | N/A | N/A | N/A | N/A | 77,060 | 78,491 | |
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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 PI 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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