date:Jun 26, 2015
the ministry recently described early gestation as critical.
Now scientists know the first heartbeat occurs on day 21, followed by growth of other organs. Testes start development on day 45 and ovary development starts on day 80.
At this point muscle development is lower down on the priorities, although studies have shown early gestation nutrition can affect muscle fibres, impacting on marbling sites.
Similarly, calves on sub-optimal nutrition during this phase produce lower carcass weight,