#Practical_11
#Ether_Extract_Determination
#Crude-Fat_Determination
Proximate Analysis of Feed
Crude fat, also known as ether extract, is the Soxhlet extraction of the sample with petroleum ether or other hexane solvents.
It consists of not only the true fat but also other ether soluble substances.
Phospholipids, steroids, waxes, alkaloids, organic acids, pigments and fat-soluble vitamins).
Principle
Ether is continuously heated, volatilized, condensed and dropped on the sample containing fat.
It extracts the ether soluble material.
The process is continued till the complete removal of the ether soluble material from the sample.
The ether is recovered and remaining crude fat is dried and weighed.
Animal Nutrition-by Dr Tanveer Ahmad, Arid Uni RWP.
Animal Nutrition, feed formulation, hay and silage making, livestock feeding,
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