One of my chicken books states that..."To settle the dust in the hen house with a dirt floor." Spray the dirt with a solution of water and oil using a pump sprayer. However, it doesn't tell me what type of oil to use or how much oil to mix with a gal. of water. Does anyone in the forum have knowledge of using this oil spray solution in the hen house? Would it harm the chickens in any way or would it be better for the hen house to remain dusty?