عنوان مقاله [English]
Perlite is among silicon volcanic stones and posses a neutral pH and had been admitted in the
chemical direction of food. An experiment was conducted to study the effects of perlite on
morphology of villi in the small intestine of male broilers. The experimental design was
arranged as randomized complete bocks in 4 * 2 factorial arrangement of treatment. 120 male
broilers of Ross commercial hybrid (Ross 308) was designated into 2 groups (control and
treatment). 3 replicates of 20 birds were assigned to each treatment. Control treatments were fed
base diet and treatment with the same base diet plus 2% perlite.
Animals were slaughtered and different segments of small intestine(at1,10,30,50,70 and 90% of
total length the small intestine) were taken from each replicates (N=2). Morphology of villi was
measured and recorded. Data were analyzed by SAS (P<0.05).
Results: As intake of perlite significantly changed in the morphological of villi at weeks and
sites of the small intestine of the broiler chicks (P<0.05), these data suggested that perlite
administration improves fat digestion and absorption in broiler chicks.
As morphological of villi is responsible for digestion and absorption in the small intestine and as
the effect of perlite administration in the diet of broilers on this morphological of villi had not
been investigated the fallowing work had been designed and performed.