Herd Testing for production data is governed by the Ministry for Primary Industries (MPI) under the New Zealand Standard of Dairy herd testing NZS 8100:2015.
Why is herd testing regulated?
Herd testing information is part of a comprehensive database of information held on New Zealand dairy cows. Herd testing is regulated to maintain value and integrity of the industry core database. It is the source of all animal evaluation, bull and cow indices.
Why does LIC enforce the regulations?
LIC is a certified herd tester. In this role we must have systems in place to monitor compliance with the standard on an ongoing basis. Regular audits of LIC are completed to ensure we remain compliant with the requirements of the certification. Key elements of complying with the standard are farmers accurately recording tagging and calvings to the core database via your herd recording management system (MINDA).
What is the tagging requirement?
• At least 95% of the animals physically on the property, aged 2 years and older, and currently lactating are recorded before 1st herd test.
What is the calving requirement?
• At least 75% of the lactating animals should have their latest calving date recorded at the time of the first herd test.
What is the 150 day suppression rule?
Every effort must be taken to resolve any tagging or calving query as soon as possible. Where tagging and calving queries are not resolved in 150 days the test will be considered somatic cell count (SCC) only, meaning you will only receive your SCC results from herd testing.
What is the reason for the 150 day suppression?
For information to be of value to the industry and for individual farmers, the time it takes to capture, assess, and return evaluated information needs to be as short as possible. Certified herd testers (in conjunction with farmers) must make every effort to ensure 100% accuracy of all recorded data is achieved for each herd. 150 days was the timeline agreed on by the committee for the Standard: New Zealand Standard Dairy herd testing NZS8100:2015.
‘Full component’ results from herd testing cover: Volume (litres), Milkfat (%, kg), Protein (%, kg), Lactose (%, kg) and Milksolids (kg).
What happens with the full component results after 150 days?
The results are permanently suppressed (i.e. deleted), and the herd test data will not be published or sent to the core database or the farmer.
Will I see the results in MINDA?
No. The results are permanently deleted. The SCC only Lab Strip received following the test is the only information you will receive.
Will I get updated indices (BW, PW & LW)?
No. The test is now SCC only and therefore no component information is or will be sent to the core database to update the animals’ indices.
Can I resolve queries after 150 days and get the data back?
No. The results for that test are permanently deleted. Updating records after 150 days will not result in publishing or receiving herd test data, or updating the core database, for that test.
Will I receive results for my subsequent herd tests?
Each test is treated separately and the 150 day timeline starts from each test date. If you have not received full component results for your first herd test you may receive full component results for the second and subsequent tests as long as records are now up to date.
Where can I find a copy of the regulations?
A full version of the New Zealand Standard of Dairy herd testing may be bought online from NZS Dairy Herd Testing 8100:2015
Can I herd test without having to update my records?
Yes. You can do somatic cell count (SCC) only testing which is exempt from the standard.
What help is available?
We want to make it easier for you to get value from your herd test and MINDA records:
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