Apolipoprotein A-IV

Normal growth
Normal feeding behavior
Normal lipid absorbtion
Decreased cholesterol HDL plasma level
Decreased plasma triglyceride
Reduced VLDL transport rate
Reduced in the plasma ApoC-III level

Reference:

Weinstock PH, Bisgaier CL, Hayek T., Aalto-Sehayek E., Wu L., Sheiffele P., Merkel M., Essenburg AD, Breslow JL.: Decreased HDL cholesterol levels but normal lipid absorption, growth and feeding behavior in apolipoprotein A-IV knockout mice. J Lipid Res 1997 Sep;38 (9): 1782-1794.