Effect of organic acid and Feed Restriction Intensity on the Performance, carcass characteristics and intestinal morphology of broiler chickens

Abstract

Introduction: The present study was conducted to investigate the effect of organic acid and
Feed Restriction Intensity on the Performance, carcass characteristics and intestinal
morphology of broilers.
Materials & Methods: For this purpose, 540 one-day-old male broilers of Ross 308 strain
were grown in a 3×3 factorial experiment with three levels of Globacid (0, 0.5, and 1 mL/L)
and three levels of feed restriction intensity (0, 10, and 20%) in a completely randomized
design with 9 experimental treatments, 6 replicates with 10 chickens in each replicate up to 42
days of age.
Results: According to the results of weight gain and conversion ratio in the final period, a
significant difference was observed in both levels of globacid alone and also with the dietary
restriction created (P<0.01). In the final period, feed intake in diets containing 1 ml of globacid
with 20% dietary restriction had the highest significant difference with the control (P<0.05).
The carcass characteristics of the birds when using organic acid and the severity of the
restriction were not significantly different from the control (P>0.01). The villi length in diets
containing both levels of globacid and the severity of dietary restrictions were the most
significant differences with the control (P<0.05).
Conclusion: The results showed that increasing the level of organic acid and reducing the
severity of dietary restriction from 20% to 10% can improve the function and characteristics
of carcasses and intestinal morphology.