Practical11 Ether Extract crude fat Determination

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#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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