Three Angora Goats of 2—2.5 years old, with permanent rumen cannula were used, in this experiment. Animals were fed with three different types of rations with concentrate mixture and alfalfa straw; 20:80, 40: 60, 60:40 respectively.

In the investigation; pH Inorganic P and NHyN values in the rumen fluid and NH3N in the blood and Urea-N, total protein, glucose, Inorganic P levels in the blood sera vere determined before feeding, at the 4 and 8th hour after feeding for each animal. At the 4 th hour after feeding the pH values in the rumen fluid and NHyN of the blood were both decreased. The NHyN values of the blood at the 8 th hour after feeding and NHyN levels of the rumen fluid at the 4 th hour after feeding were highest. Inorganic P values in the blood sera were gradually increased but Inorganic P levels in the rumen fluid were decreased at the sampling times.

No notable changes were observed in each sampling, as far as Urea-N, total protein and glucose levels of the blood sera are concerned.