Dietary Supplementation of Different Levels of Phytogenic Feed Additive in Broiler Diets: The Dynamics of Growth Performance, Caecal Microbiota, and Intestinal Morphometry

被引:11
作者
Ahsan, U. [1 ]
Kuter, E. [1 ]
Raza, I [1 ]
Koksal, B. H. [1 ]
Cengiz, O. [1 ]
Yildiz, M. [2 ]
Kizanlik, P. K. [3 ]
Kaya, M. [4 ]
Tatli, O. [1 ]
Sevim, O. [1 ]
机构
[1] Adnan Menderes Univ, Fac Vet Med, Dept Anim Nutr & Nutr Dis, TR-09016 Isikli, Aydin, Turkey
[2] Canakkale Onsekiz Mart Univ, Sch Appl Sci, Dept Occupat Hlth & Safety, TR-17020 Canakkale, Turkey
[3] Adnan Menderes Univ, Fac Vet Med, Dept Food Hyg & Technol, TR-09016 Isikli, Aydin, Turkey
[4] Adnan Menderes Univ, Fac Vet Med, Dept Anim Sci, TR-09016 Isikli, Aydin, Turkey
关键词
Broilers; intestinal microbiota; intestinal morphology; performance; phytogenic feed additive; ESSENTIAL OIL COMPONENTS; NUTRIENT DIGESTIBILITY; PLANT-EXTRACTS; HEMATOLOGICAL PARAMETERS; CLOSTRIDIUM-PERFRINGENS; ANTIMICROBIAL ACTIVITY; LIPID OXIDATION; IMMUNE-RESPONSE; GUT MICROFLORA; ORGANIC-ACIDS;
D O I
10.1590/1806-9061-2017-0698
中图分类号
S8 [畜牧、 动物医学、狩猎、蚕、蜂];
学科分类号
0905 ;
摘要
The present study was conducted to investigate the influence of different levels of dietary phytogenic feed additive (PFA) on growth performance, caecal microbiota, and intestinal morphology of broilers. A total of 480 Ross-308 one-day-old male broilers chicks (body weight 43 +/- 3 g) were randomly assigned to 32 replicate pens of four experimental groups, each experimental group consisting of 8 replicates (each replicate pen consisting of 15 chicks). A basal diet was formulated based on corn and soybean meal that was fed to the control group. Other dietary treatments received a commercial PFA at 100 mg/kg (PFA100), 125 mg/kg (PFA125), and 150 mg/kg (PFA150). Body weight gain, feed intake, and feed conversion rate of broilers were recorded on 1-21, 22-42, and 1-42 days of age. One bird was slaughtered on the 21st and 42nd days and caecal contents were aseptically collected. Jejunal tissue samples were also collected on the same days. Total aerobic bacteria, coliforms, Escherichia coli, and lactobacilli were counted in the caecal contents. Villus height, villus diameter, crypt depth, muscular thickness, and goblet cell number per villus were recorded. There was no difference among the dietary treatments for growth performance and caecal microbe populations at any phase. However, the dietary PFA supplementation increased the villus height, villus width, muscularis thickness, and reduced the crypt depth and goblet cell number per villus in broilers compared to those fed control diets. In conclusion, this study suggests that dietary supplementation of a PFA consisting of blend of different spices and essential oils did not improve growth performance and caecal microbial populations despite a positive improvement in the jejunal morphometry of broilers.
引用
收藏
页码:737 / 745
页数:9
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