I am searching for some probiotics which can help with the production of diseaseless poultry. The beneficial effects of these bacteria may prevent gut related disease of poultry
My first question would be: are you looking for a solution in a research setting or for practical purposes???
In all cases you must first optimize hygiene, animal housing, climate and of course nutrition.
If you have done that, your results will probably be near the biological maximum for the typeof bird you are working with. If the laying percentage of your hens is already at or above 95 %, or for broilers at 40 days your daily bodyweight gain at or above 60 g, the chances of getting any improvement are very slim. Many experiments have proven that.
Moreover metabolic problems are quite likely to occur as the the animals are then performing like "topsporters".
So my advice would be: aim for hygiene and climate first.
Feed additives might have their disadvantages as well as we have pointed out in our review paper. (Kan, Jager and Grommers Animal Welfare I998, 7: 397 -414)
You can to find more information in these articles:
A direct fed microbial containing a combination of three-strain Bacillus sp. can be used as an alternative to feed antibiotic growth promoters in broiler production. http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9262280&fileId=S2049257X14000047
Intestinal microbiota and metabolites—Implications for broiler chicken health and performance. http://japr.oxfordjournals.org/content/22/3/647.short
Effect of a Lactic Acid Bacteria Based Probiotic, Floramax-B11, on Performance, Bone Qualities, and Morphometric Analysis of Broiler Chickens: An Economic Analysis. http://omicsgroup.org/journals/effect-of-a-lactic-acid-bacteria-based-probiotic-floramaxb-on-performance-bone-qualities-and-morphometric-analysis-of-broiler-chickens-an-economic-analysis-2329-6577-2-113.pdf
Effect of Bioplus 2B and Protoxin Probiotics Supplementation on ® Growth Performance, Small Intestinal Morphology and Carcass Characteristics of Broiler Chickens. http://www.idosi.org/bjps/2(2)13/1.pdf