The effect of helium neon laser irradiation on the morphology of small intestine of hatched broiler chicks

Subject Areas : Journal of Comparative Pathobiology

هادی ابوالحسنی ¹ , جمشید قیاسی قلعه کندی ² , علیرضا احمدزاده ³ , جواد حیدربیگی ممقانی ⁴

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Received: 2011-05-01 Accepted : 2011-07-27 Published : 2011-11-22

Keywords: Helium neon laser, Morphology, Small intestine, Broiler chick,

Abstract :

An experimental was conducted to determine the effect of helium neon laser irradiation on themorphology of small intestine of hatched broiler chicks. A total of 225 day old (Ross 308)broiler chicks were used in a completely randomized. Design with 3 treatments in 3 replicates(25 chickens per replicate). Experimental treat were: 1) without laser irradiation (control). 2) 6mw laser irradiation, for 1.5 minute, 12 hours before incubation. 3) 10 mw laser irradiation, for1.5 minute, 12 hours before incubation. At the ages of 21,28,36, and 42 days , 2 broiler wasselected from each replication, and various sections of their small intestine were sampled inlaboratory (1, 10, 30, 50, 70, 90% length of small intestine). And villi length, crypt depth, andtheir ratio were measured. The results of related to morphology of small intestine (villous lengthand crypts depth) showed distinguish between treatments were significant (P< 0/05). Heliumneon laser irradiation on the morphology of small intestine of hatched broiler chicks hadsignificant effect. Thus, helium-neon laser irradiation with an intensity of 10 mw on villouslength and crypt depth had a positive effect on nutrient absorption has the effect of feed.