What protective measure is recommended to prevent cold damage to the goose's knob before a hard freeze?

Answer

Applying a thin barrier ointment, such as plain petroleum jelly

A practical preventative step involves applying a thin barrier ointment, like petroleum jelly, to the knobs of both sexes before the first hard freeze to guard against icing or cold damage.

What protective measure is recommended to prevent cold damage to the goose's knob before a hard freeze?
whiteChinesebrownbreedgoose