From 5 to 9 mo of age , the weight-for-age z score ( WAZ ) and length-for-age z score ( LAZ ) increased in the Meat group ( WAZ : 0.24 0.19 ; LAZ : 0.14 0.12 ) and decreased in the Cereal group ( WAZ : -0.07 0.17 ; LAZ : -0.27 0.24 ) ( P-group by time < 0.05 ) .