I don't count protein from shakes or vegetable proteins in my daily amounts. Regardless of its bio-availability, they are low quality proteins that are absorbed in 30 mins (whey). The nitrogen spike is short.
The only time you should consume a shake is post workout because you need this spike from quick digesting (whey) protein. If you require 160g of protein a day, get 160g from foods (eggs, meat, and some dairy), and consume a shake post workout and/or in the morning, but don't count it in your daily totals... nothing can replace good old FOOD.
