If you do not have an average BV Lwt for your group of heifers, you may estimate using the following guide…
Breed |
BV Lwt (kg) |
Jersey |
-57 |
Cross Breed |
-5 |
Friesian |
48 |
The values above are taken from the breed RAS list as at 6-May-2009.
The current Breeding Value Liveweight (BV Lwt) benchmark for mature NZ dairy cows is 503 kilograms.
If a Jersey has a BV Lwt of minus 57, then its mature liveweight is estimated at 503 minus 57 equals 446 kg.
An animal with an BV Lwt of plus 48 will calculate at 503 plus 48 equals 551 kg.
To discover the BV Lwt for your group of heifers refer to the “Trait Evaluations Report” available from LIC. To view an example, click here.
To view the BV Lwt for AB Sires on the RAS list, click here.