Tool 3.1 Lamb growth planner
Tool 3.1 Lamb growth planner
To plan the average lamb growth rate to point of sale:
- Separate the mob into top, middle and bottom thirds to account for natural variation.
- Complete the table for each mob.
- Calculate the estimated average days to sale weight.
- Calculate the growth rate required (grams per head per day) to achieve the target market.
- Use this information to plan the utilisation of available forage (see chapter 8.3 in MMFS Module 8 Turn Pasture into Product)
|
Estimated days from birth to sale (no. days) |
Average birth weight* (kg) |
Target live weight at sale (kg) |
Total growth required (kg) |
Required growth rate per day (g/head/day) |
|
A |
B |
C |
D = C – B |
D / A x 1000 |
First draft lambs |
|
|
|
|
|
Second draft lambs |
|
|
|
|
|
Carryover lambs |
|
|
|
|
|
* If not known, use 4.5 kg if mainly born as singles and 4 kg if 20% or higher multiples in the mob.