Fereshteh Jamili; Farid Shariatmadari; Mohammad-amir Karimi Torshizi
Volume 15, Issue 2 , October 2013, , Pages 117-126
Abstract
This experiment was conducted to evaluate the effect of emulsifiers such as lecithin and bile salts onbroilers performances fed diet containing vegetable fats. 192 male Ross broiler chickens were randomlyallocated in a factorial experiment design of 3 × 2, consisting two sources of fat (four percent ...
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This experiment was conducted to evaluate the effect of emulsifiers such as lecithin and bile salts onbroilers performances fed diet containing vegetable fats. 192 male Ross broiler chickens were randomlyallocated in a factorial experiment design of 3 × 2, consisting two sources of fat (four percent fatty acidsor soy bean oil) and three emulsifiers (none, one percent lecithin and 0.05 percent bile salts) incompletely randomized design with four replicates and eight birds per each. Total weight gain and feedconversion ratio was not affected by fat sources while soya oil addition to diets increased feed intake(P<0.05). Emulsifiers’ addition to diet improved weight gain feed conversion ratio (P<0.05). The lengthand width of villi in jejunum, and crypt depths in duodenum were not affected by fat sources, while, cryptdepth in jejunum and width of villi in ileum of birds fed on diets containing fatty acid were higher thanother birds (P<0.05). Addition of emulsifiers to diets increased dietary metabolisable energy (P<0.05). Inconclusion, addition lecithin or bile salts to diets containing soybean oil or its fatty acids, improved bodyweight gain and feed conversion ratio in broiler chicks by increasing in absorption area of intestine anddietary metabolisable energy.