title: Effect of sucrose thermal oligosaccharide caramel, dietary vitamin-mineral level, and brooding temperature on growth and intestinal bacterial populations of broiler chickens.
abstract: Two experiments were conducted to determine the effect of sucrose thermal oligosaccharide caramel (STOC) and dietary vitamin-mineral (V/M) level on growth performance and intestinal microflora of broiler chickens. In Experiment 1, Peterson x Arbor Acres male broilers (n = 384) were randomly allocated into four groups that were fed either the control diet or diets containing the antibiotic virginiamycin (11 mg/kg), 3.7% STOC or 7.5% STOC for 4 wk at brooding temperatures of 32 to 29.7 C. Weight gains for broilers in Experiment 1 were greater (P < 0.001) for birds fed STOC diets, with weight gains of 763, 822, 1,124, and 1,080 g for birds on the control, antibiotic, 3.7% STOC, and 7.5% STOC diets, respectively. Feed intake and feed conversion by birds fed STOC diets were also significantly improved. Cecal bifidobacterial numbers were increased (P < 0.03) over the control diet with numbers being 5.98, 6.99, 7.47, and 7.39 log10 cfu/g cecal DM, respectively. In Experiment 2, Peterson x Hubbard male broilers (n = 384) were used in a 2 x 2 x 2 factorial arrangement with two levels of V/M premix (0.5 or 1% of the diet), two levels of STOC (0 or 3.5% of the diet), and two brooding temperatures, normal (32 to 23.6 C) or high (32 to 29.7 C) for 4 wk. Feeding the STOC diet improved (P < 0.05) weight gain, feed intake, and feed conversion of broilers. The effect of STOC on animal performance was less evident when broilers were fed twice the NRC recommended levels of V/M. Feeding the STOC diets resulted in a significantly greater increase in weight gain at high brooding temperatures than at normal brooding temperatures. There was also a reduction (P < 0.05) in numbers of total aerobes and coliforms in the ceca of birds fed diets containing STOC. Feeding STOC has potential to improve growth performance of broiler chickens.
authors.affiliation: Department of Animal Sciences, Purdue University, West Lafayette, Indiana 47907, USA.
authors.forename: J I
authors.initials: JI
authors.lastname: Orban
authors.forename: J A
authors.initials: JA
authors.lastname: Patterson
authors.forename: A L
authors.initials: AL
authors.lastname: Sutton
authors.forename: G N
authors.initials: GN
authors.lastname: Richards
mesh_terms: D000193:Actinomycetales Infections / Q000188:drug therapy / Q000453:epidemiology / Q000662:veterinary; D000818:Animals; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D001644:Bifidobacterium / Q000302:isolation & purification; D002645:Chickens / Q000254:growth & development* / Q000382:microbiology; D004032:Diet / Q000662:veterinary; D004040:Dietary Carbohydrates / Q000494:pharmacology*; D019422:Dietary Sucrose / Q000494:pharmacology*; D004305:Dose-Response Relationship, Drug; D004435:Eating / Q000502:physiology; D005527:Food, Fortified; D007422:Intestines / Q000382:microbiology*; D008297:Male; D008903:Minerals / Q000008:administration & dosage*; D009844:Oligosaccharides / Q000494:pharmacology*; D011201:Poultry Diseases / Q000175:diagnosis / Q000453:epidemiology; D011897:Random Allocation; D013696:Temperature; D014769:Virginiamycin / Q000627:therapeutic use; D014815:Vitamins / Q000008:administration & dosage*; D015430:Weight Gain / Q000502:physiology
chemical_list: D000900:Anti-Bacterial Agents; D004040:Dietary Carbohydrates; D019422:Dietary Sucrose; D008903:Minerals; D009844:Oligosaccharides; D014815:Vitamins; D014769:Virginiamycin