اثر پوسته خارجی به عنوان یک منبع فیبر جیرههای نامحلول بر ریخت شناسی و جمعیت لاکتوباسیلوسها و اشریشیا کولی روده جوجههای گوشتی
Publish place: Iranian Journal of Veterinary Medicine، Vol: 10، Issue: 3
Publish Year: 1395
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJVM-10-3_008
تاریخ نمایه سازی: 12 تیر 1398
Abstract:
Background: There are some reports on the positive effectsof dietary insoluble fiber on the performance of broilers. Objectives: This study was carried out to determine theeffect of inclusion rate and particle size of rice husk in the diet of broilerson the ileal and cecal bacteria populations and small intestine morphology. Methods: The experimental diets consisted of a control husk-free diet andfour diets containing 7.5 or 15 g/kg rice husk with particle sizes of less than1 mm or between 1-2 mm. Results:The dietary insoluble fiber did not affect feed intake of the experimentalgroups. The best body weight gain and feed conversion ratio was recorded in thebroiler chickens fed the diet containing 15g/kg rice hulls with particle sizeof less than 1 mm (p<0.05). In the duodenum and jejunum, the crypt depth tovilli height ratio in the control group was significantly lower than othergroups (p<0.05). In the ileum, all the birds fed rice husk except the groupfed the diet that contained 15g/kg rice husk with particle size of 1-2 mm,had higher Lactobacilli and lowerE. coli and coliforms populations than the control group (p<0.05). Conclusions: The results of the present study suggest thatthe 7.5g/kg dietary inclusion and more coarse particles size of rice husk (1-2mm) were more effective to promote broiler growth performance. The positiveeffects of dietary insoluble fiber on the growth performance of broilers inthis study are probably a result of favorable changes in the bacteria populations of the gastrointestinal tract andnot any improvement in small intestine absorptive capacit
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Authors
Ali Abazari
۱Graduated from Department of Animal Sciences, University of Mohaghegh Ardabili, Ardabil, Iran
Bahman Navidshad
۲Department of Animal Sciences, University of Mohaghegh Ardabili, Ardabil, Iran
Farzad Mirzaei Aghjehgheshlagh
۲Department of Animal Sciences, University of Mohaghegh Ardabili, Ardabil, Iran
Saeid Nikbin
۲Department of Animal Sciences, University of Mohaghegh Ardabili, Ardabil, Iran
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