In poultry " broiler finish mash " is fed to the chicks between

Question

$\begin {array} {1 1} (1)\;1\: to\: 6\: weeks & \quad (2)\;7\: to \: 10\: weeks \\ (3)\;10\: to \: 15\: weeks & \quad (4)\;15\: to \: 20 \: weeks \end {array}$