title: Effects of dietary lipids and Clostridium butyricum on the performance and the digestive tract of broiler chickens.
abstract: The effects of two sources of dietary lipids and supplementation of Clostridium butyricum on performance and intestinal metabolism of broilers were investigated. In a 2 x 2 factorial arrangement, 168 one-day-old broiler chicks were divided into four treatment groups, and fed four diets with two lipid sources (soya bean oil or fish oil, at 25 g/kg and 30 g/kg in starter and grower diets respectively), and without or with supplementation of C. butyricum (1 x 10(9) colony forming units per kg diet). C. butyricum had no effect on broiler performance. At 20 and 40 d of age, the pH of caecal digesta and the relative length of caecum were decreased after supplementation of C. butyricum (p < 0.05). After this treatment, the activity of alkaline phosphatase was increased in jejunal mucosa at 40 d of age (p < 0.01). Furthermore, there were increases in populations of lactic acid bacteria and the concentrations of acetic acid, n-butyric acid, n-valeric acid and total short chain fatty acids in caecal digesta of birds fed C. butyricum (p < 0.05). A significant interaction between lipid source and C. butyricum was found in the pH of caecal digesta at 20 d of age (p < 0.01). The results of the present study indicated that dietary supplementation of C. butyricum maybe a benefit for gut health of broiler chickens.
authors: State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Bejjing, China.
authors: Bingkun
authors: B
authors: Zhang
authors: Xin
authors: X
authors: Yang
authors: Yuming
authors: Y
authors: Guo
authors: Fangyu
authors: F
authors: Long
mesh_terms: D000821:Animal Feed / Q000032:analysis; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D002645:Chickens / Q000254:growth & development / Q000382:microbiology / Q000502:physiology; D046972:Clostridium butyricum / Q000502:physiology*; D004032:Diet / Q000662:veterinary; D004041:Dietary Fats / Q000494:pharmacology*; D041981:Gastrointestinal Tract / Q000187:drug effects* / Q000382:microbiology*; D006863:Hydrogen-Ion Concentration; D008055:Lipids / Q000737:chemistry / Q000494:pharmacology*; D008297:Male
chemical_list: D004041:Dietary Fats; D008055:Lipids