This Ohio Small Farm Institute Grass-Fed Beef Notebook is a good resource for the grass fed livestock farmer. Its broken into chapters so you can read the ones specific to your questions!
Sections are as follows:
Section 1 Contributors Introduction
Section 2 Grazing Management Resources
Section 3 Direct Marketing
Section 4 Processing & Added Value Cuts
Section 5 This section is on Consumer Interest and Demand.
Section 6 Nutrition, Carcass, Grading & Glossary
Sección 6 Ganado vacuno terminado en sistemas pastoriles
Section 7 Additional resources