i bought a different brand of layer mash last week . i got agway 16% egg layer mash . been feeding them blueseal brand layer mash 16%. all along. i bought the agway brand because i was nt going to get to the blueseal brand store . they have slacked off laying this past week. dont know if it is the feed or the addition of the 10 new 1 year old birds i got 2 weeks ago. i was getting 14/25 eggs a day. lately its been 4, 5, 6 .7 ,8, 9. a day from 25. the 10 new birds only about half have started to lay. and only half of my original flock of 15, are laying now since the new birds arrived.