Antioxidants, Gross Energy and Cost Savings

Good article.. The calculation of financial losses due oil spoilage is very interesting. Apart from gross energy losses due to rancidity, there will be reduction in the vitamins and other additives level in the final feed,when we use damaged oil in poultry feed.

Author Ms. Lin did an excellent work to establish financial impact of oxidation of oils. Antioxidants play very important role not only to preserve stability of oils but also other products by preventing the products from the process of oxidation. I must request author to extend her study to calculate the financial impact of oxidation on grains or any other product used in feed formulation. Especially in Pakistan, where commercial feed producers are manufacturing low density and low energy diets virtually without the addition of any oil or fat and still they are economically viable and profitable. I wish, if Ms. Lin could put some light on the use of antioxidants on grains and other materials too with the financial impact.

Dear Ms Lin, The case study is a self explainatory that use of Antioxidants in Fat/Oil directly or in finished feed will save the energy losses in storage. But i have some below querries on the subject matter:... 1) Why you have selected the Crude palm oil as study material as oxidative changes are more related with unsaturates so we expect you will work on the Soya crude oil in the same way. 2) The Oil sample collected & mentioned Zero day is immediate after oil production i.e. before staring the auto-oxidation reactions? 3) If samples collected at Zero days have not started any Oxidation reactions then after adding the antioxidant by which phenomenon energy will increase during the storage. eg.Sample II treated with Barox : Gross energy value at 0 day is 8490 Kcal/Kg, at 14 day 8660 kcal/kg & at 28 day 8710 Kcal/kg. 4) By which phenomenon after adding the antioxidants in Oil increases the gross energy in storage too. Please elaborate the same to upgrade our knowledge. Thanks & regards, Dr Jaydip

Thanks