Non-PRO English to French Other Livestock / Animal Husbandry

In most regions of the commercial beef-raising world the important profit index ranks as follows for every $10 margin:
$7 earned by good reproduction
$2 earned by live weight growth
$1 earned by other traits (carcase, colour, temperament etc)
At XXXX we are in our third decade of intense selection in the traits of fertile, gentle and growthy cattle adapted to our Northern Australian costs and conditions. Four traits are plenty to select for.
1. In reality fertility and adaptation may end up meaning the same thing: absolute value.
2. Good temperament is essential for low costs in labour and facilities, and minimising market losses.
3. Growth usually equals consumption, so there is literally no free feed there, in normal Northern Australian conditions.
The most elusive factor is adequate groceries for our herds. You can equate this in several ways, eg. stocking rates per square mile, stock days per hectare per 100mm of rain, or ///acres to the beast./// All of these have an equivalent dollar cost, whether on your own country or on agistment. Quantity and distribution of rainfall has a big impact on our costs each year also.

From a document describing a cattle breeding farm in North Queensland - Australia.

Thanks for your help.