Plasma Amino Nitrogen and Creatine Values of Growing Chick and Laying Hen.

Abstract
Using Lloyd''s reagent, average plasma creatine values by the Jaffe reaction for 5-weeks old cockerels and laying hens are .97 [plus or minus] .09 and 1.17 [plus or minus].13 mg/100 ml plasma, respectively. The respective amino N values are 8.37 [plus or minus].40 and 7.97 [plus or minus] .09 mg/100 ml plasma. There is no significant difference between the values of the cockerels and laying hens. For conversion to whole blood values the chick and hen hematocrit of 28 - 30 ([image].- mammalian hematocrit of 50) must be used.