...my impression is that I should push the cockerels in particular, feeding them like I do Cornish-Rocks...
I can email her asking for more clarification if you like.
I would appreciate clarification, thank you. My understanding is that CornishXrocks are not pushed, but are limit-fed, reducing both the volume of feed offered and the protein available to slow their growth. (Otherwise they outgrow their skeletons and internal organs.) I am trying to accomplish the opposite, increase early growth in a strain that doesn't flesh out for months, so feeding them like cornishxrocks seems counterintuitive.
Best wishes,
Angela