دورية أكاديمية
Effect of dietary fiber, genetic strain and age on the digestive metabolism of broiler chickens
| العنوان: | Effect of dietary fiber, genetic strain and age on the digestive metabolism of broiler chickens |
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| المؤلفون: | RV Krás, A de M Kessler, AML Ribeiro, JD Henn, L Bockor, AF Sbrissia |
| المصدر: | Brazilian Journal of Poultry Science, Vol 15, Iss 2, Pp 83-90 (2013) |
| بيانات النشر: | Fundação APINCO de Ciência e Tecnologia Avícolas, 2013. |
| سنة النشر: | 2013 |
| المجموعة: | LCC:Animal culture LCC:Veterinary medicine LCC:Zoology |
| مصطلحات موضوعية: | Age, fiber, metabolism, pair-fed, strain, Animal culture, SF1-1100, Veterinary medicine, SF600-1100, Zoology, QL1-991 |
| الوصف: | In this study, 360 male broilers, out of which 240 of a fast-growing strain (Cobb500), and 120 of a slow-growing strain (Label Rouge), were used to evaluate the effect of dietary fiber on digesta transit time and digestive metabolism during the period of 1 to 42 days of age. A completely randomized experimental design with a 3x2 factorial arrangement was applied, consisting of three groups of birds (slow-growing - SG; fast-growing fed ad libitum - FGAL; and fast-growing pair-fed with SG broilers - FGPF) and two iso-protein diets (a 3100 kcal ME/kg low-fiber diet - LFD- and a 2800 kcal ME/kg high-fiber diet - HFD- with 14% wheat bran and 4% oat hulls). HFD-fed birds presented lower ME retention (p < 0.001) and lower dry matter metabolizability (DMM) (p < 0.001), which is possibly related to the shorter digesta transit time observed in these birds (p < 0.001). DMM was reduced with age, whereas metabolizable energy remained almost constant (p < 0.001) independently of strain. This may be related to the increase in feed intake as birds age. The slow-growing strain did not present better utilization of the high-fiber diet as compared to the fast-growing strain in none of the analyzed ages, even though showing a significant better use of fiber and dietary energy from 31 days of age. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1806-9061 1516-635X |
| Relation: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000200003&lng=en&tlng=en; https://doaj.org/toc/1806-9061 |
| DOI: | 10.1590/S1516-635X2013000200003 |
| URL الوصول: | https://doaj.org/article/25b2fb1e97444056817b79422206ce5a |
| رقم الأكسشن: | edsdoj.25b2fb1e97444056817b79422206ce5a |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 18069061 1516635X |
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| DOI: | 10.1590/S1516-635X2013000200003 |