You may find the article on the link below useful to your queries

https://www.researchgate.net/publication/313021653_Appropriate_Insulin_Level_in_Selecting_Fortified_Diet-Fed_Streptozotocin-Treated_Rat_Model_of_Type_2_Diabetes_for_Anti-Diabetic_Studies?_iepl%5BviewId%5D=lI5THw7f3IenOKkM623VmQ1o&_iepl%5BprofilePublicationItemVariant%5D=default&_iepl%5Bcontexts%5D%5B0%5D=prfpi&_iepl%5BtargetEntityId%5D=PB%3A313021653&_iepl%5BinteractionType%5D=publicationTitle 

Article Appropriate Insulin Level in Selecting Fortified Diet-Fed, S...

“High Fat Diet” (HFD), by providing a purified laboratory hypercaloric rodent diet “WESTERN RD” (SDS, Special Diets Services, Saint Gratien, France) containing 21.4 % fat, 17.5 % protein, 50 % carbohydrate, 3.5 % fibre, and 4.1 % ash. 

Have a look on this :

http://jme.endocrinology-journals.org/content/36/3/485.full

and this

https://www.ncbi.nlm.nih.gov/pubmed/28849467

Hello,  hope these papers will answer your question.

Thank you so much for your excellent response.