Document Type : Research Paper

Authors

• Daryush Khademi Shurmasti ¹
• Farid Shariatmadari ²
• Mohammad Amir Karimi Torshizi ³
• Houshang Lotfollahian ⁴

¹ Ph.D. Candidate, Department of Poultry Science, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran

² Professor, Department of Poultry Science, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran

³ Assistant Professor, Department of Poultry Science, Faculty of Agriculture, Tarbiat Modares University, Tehran, Iran

⁴ Assistant Research Professor, Section of Nutrition and Physiology, Animal Research Institute, Karaj, Iran

Abstract

The present study was carried out to evaluate the effects of vegetable fat sources and additives on performance and morphological parameters of the small intestine of Arain broiler chickens. Birds were randomly used in a 2×3 factorial arrangement of dietary treatments included two fat sources (canola or pumpkin seed) and three additives (without additive, 0.1 g/kg probiotic and 0.15 g/kg virginamycin) with four pen replicates and 20 birds per each. The growth performance and productive traits, with using of neither additives nor fat sources or fat sources × additives were unaffected. However, probiotic was significantly decreased crypt depth and increased villi height to crypt depth ratio in jejunum and ileum (P<0.01). Likewise, the highest of villi height and villi height to crypt depth ratio in jejunum and ileum especially was obtained with combination of pumpkin seed oil and probiotic (P<0.05). Crypt depth, villi thickness and surface area was higher in duodenum of broilers were fed with pumpkin seed oil (P<0.05).Thus, probiotic bactocell can be used in diets contain linoleic-oleic (pumpkin seed oil) and linolenic (canola oil) fat groups without negative effect on performance and productive traits.

Keywords

• Antibiotic
• broiler
• intestine morphology
• Probiotic
• vegetable fat

20.1001.1.20096776.1394.17.2.5.9