Effects of the inclusion of a Bacillus direct-fed microbial on performance parameters, bone quality, recovered gut microflora, and intestinal morphology in broilers consuming a grower diet containing corn distillers dried grains with solubles
| Autor: | Guillermo Tellez, Billy M. Hargis, J. L. Vicente, Xochitl Hernandez-Velasco, Ross Wolfenden, Juan D. Latorre |
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| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Male Animal feed DDGS Population enzymes Bacillus Feed conversion ratio Metabolism and Nutrition 03 medical and health sciences chemistry.chemical_compound Random Allocation Starter microbiota Animals Food science Bacillus-DFM education education.field_of_study Bone Development biology Chemistry Probiotics 0402 animal and dairy science 04 agricultural and veterinary sciences General Medicine biology.organism_classification 040201 dairy & animal science Animal Feed bone quality Lactic acid Diet Gastrointestinal Microbiome Intestines 030104 developmental biology Animal Science and Zoology Composition (visual arts) Anaerobic bacteria Chickens Bacteria |
| Zdroj: | Poultry Science |
| ISSN: | 1525-3171 |
| Popis: | Distillers dried grains with solubles (DDGS) have increasingly been used in poultry diets as a consequence of rising grain costs. Some, but not all, sources of DDGS have a variable compositional value, and a high inclusion of this by-product could be considered a risk factor for presentation of enteric diseases. Presently, 2 experiments were conducted using a starter corn-soybean diet (zero to 7 d) and a corn-DDGS-soybean grower diet (8 to 28 d) with or without inclusion of a Bacillus-direct-fed microbial (DFM). In both experiments, day-of-hatch chicks were randomly assigned to 2 different groups: control group without DFM or Bacillus-DFM group, containing 106 spores/g of feed. In each experiment, 8 pens of 20 chicks (n = 160/group) were used. Performance parameters of BW, BW gain (BWG), feed intake (FI), and feed conversion (FCR) were evaluated in each growth phase. Additionally, in experiment 2, intestinal samples were collected to determine duodenal and ileal morphology (n = 8/group), as well as the microbiota population of total lactic acid bacteria (TLAB), total Gram-negative bacteria (TGNB), and total anaerobic bacteria (TAB) on d 28 (n = 16/group). Furthermore, both tibias were evaluated for bone strength and bone composition (n = 16/group). In both experiments BW, BWG, and FCR were improved by the DFM when compared to the control group (P |
| Databáze: | OpenAIRE |
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