The breeding of heifers is a matter of great relevance for the company that produces milk. There are few inns that are presented to the sale of surplus production of players and most of sail in the very low growth rates (under 1% per annum).
In a recent study, analyzing thousands of cases was observed that the average age at first birth was found to be the 31.3 months, and also that the increased production per lactation was of those heifers that gave birth to 26 months of age.
To view the full job analysing more than half a million of first lactations, follow the following link: