Preliminary Investigation on the Effect of Dietary Supplement Biotin and Palm Kernel Oil on Blood,Liver and Kidney Lipids in Chicks
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Harwood Academic Publishers GmbH
Abstract
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A total of 480 day-old broiler chicks were used in two trials conducted to investigate the
performance and lipid contents of blood, liver and kidneys of birds when fed varying levels of palm
kernel oil (0% and 2%) and biotin (40, 80, 120, 160, 200 and 240 I1lcg/kg feed) in a 2 x 6 factOlial
experimental design. The results showed that blood, liver and kidney lipid concentrations were
significantly affected by dietary biotin treatments. While total lipid, free fatty acid, triglyceride and
cholesterol contents were negatively correlated with dietary biotin level, phospholipid concentrations
were positively correlated. Biotin-deficient chicks had significantly higher total lipid, free fatty acid,
triglyceride and cholesterol but lower phospholipid contents in their blood and the two organs.
Supplementation of the diet with 2% palm kernel oil significantly elevated blood phospholipid
concentration, but depressed the accumulation of the other lipid fractions in both organs and the
blood of birds. Blood, liver and kidney cholesterol concentrations were not affected by 2% fat
supplementation. Observation on the lipid parameters coupled with the results on feed utilisation
appeared to suggest that a minimum of 120 mcg of the vitamin per kilograme of diet was required
by broiler chicks for optimum performance.
Keywords
Q Science (General)