The stability of formulated carotenoid diets during feed processing and under
different storage conditions were studied. All carotenoid diets were split into two groups
with one group containing BHT (acting as an antioxidant) at 250 ppm and the other
without BHT. The experiment was divided into two parts. First, all diets were evaluated in
total carotenoid (TC) loss during feed processing, in dry mixed feeds after being processed
and dried. In the final part, the completed dietary carotenoids were stored in an aluminum
foil bag, the top of which was sealed with a bag sealer and kept under different storage
conditions at 26–28 °C and 4 °C. The stability of the TC was observed during an 8-week
trial period. The results showed that the diet pelleting process did not affect the carotenoid
content of the diets, and the best storage temperature for the formulated carotenoid diet
was at 4 °C. However, an antioxidant was added to assist in energy saving before feed
processing. Thus, the addition of BHT at 250 ppm can be done at normal room temperature
in order to reduce oxidation that might cause a loss of TC quantities in diets.
The stability of formulated carotenoid diets during feed processing and under
different storage conditions were studied. All carotenoid diets were split into two groups
with one group containing BHT (acting as an antioxidant) at 250 ppm and the other
without BHT. The experiment was divided into two parts. First, all diets were evaluated in
total carotenoid (TC) loss during feed processing, in dry mixed feeds after being processed
and dried. In the final part, the completed dietary carotenoids were stored in an aluminum
foil bag, the top of which was sealed with a bag sealer and kept under different storage
conditions at 26–28 °C and 4 °C. The stability of the TC was observed during an 8-week
trial period. The results showed that the diet pelleting process did not affect the carotenoid
content of the diets, and the best storage temperature for the formulated carotenoid diet
was at 4 °C. However, an antioxidant was added to assist in energy saving before feed
processing. Thus, the addition of BHT at 250 ppm can be done at normal room temperature
in order to reduce oxidation that might cause a loss of TC quantities in diets.
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