The Poultry Bulletin - - SMALL BUT DEADLY - By Dr San­gita Jalukar

With mul­ti­ple points of en­try to poul­try fa­cil­i­ties; con­tact with wild birds, ro­dents and other an­i­mals; as well as biose­cu­rity breaches, it can be dif­fi­cult to con­tain Salmonella. As a re­sult, in­fec­tion and pathogen spread can oc­cur at any point in a poul­try pro­duc­tion sys­tem. The im­pli­ca­tions for an­i­mal health and pro­duc­tiv­ity, along with food safety con­cerns, means poul­try pro­duc­ers must fo­cus on ways to keep Salmonella out of their fa­cil­i­ties.

Fail­ure to do so can have se­ri­ous con­se­quences. In the EU for ex­am­ple, more than 100 000 hu­man cases of salmonel­losis are re­ported each year. The Eu­ro­pean Food Safety Au­thor­ity es­ti­mated that the over­all eco­nomic bur­den of hu­man salmonel­losis could be as high as EUR 3 bil­lion a year.

So­lu­tions from nu­tri­tion

Nu­tri­tional so­lu­tions like the Re­fined Func­tional Car­bo­hy­drates (RFC) found in CELMANAX can help pro­vide poul­try pro­duc­ers with ways to pre­vent the spread of Salmonella and other pathogens while de­liv­er­ing nu­tri­tional ben­e­fits to the flock.

RFCS are the com­po­nents har­vested from yeast cells (S. cere­visiae) us­ing spe­cific enzymes dur­ing a pro­pri­etary man­u­fac­tur­ing process. This en­zy­matic hy­drol­y­sis yields MOS (Man­nan Oligosac­cha­rides); Beta 1,3-1,6 glu­cans; and D-man­nose.

These com­pounds are nat­u­rally present in all yeast cells, but are not read­ily bioavail­able. The method of pro­cess­ing used to re­fine the yeast cells in­flu­ences the size and struc­ture of these lib­er­ated com­po­nents, which in turn af­fects bioavail­abil­ity and func­tion­al­ity.

In the case of RFCS, this en­zy­matic hy­drol­y­sis process sig­nif­i­cantly in­creases bioavail­abil­ity that ben­e­fits an­i­mal health and pro­duc­tiv­ity. Re­search shows that each RFC has a spe­cific mode of ac­tion and out­come when fed to poul­try and live­stock.

In poul­try, RFCS in­ter­fere with Salmonella’s ad­her­ence to the in­testi­nal tract, as well as ag­glu­ti­nate the bac­te­ria to ren­der it harm­less once it passes through the in­testi­nal tract.

Fur­ther­more, be­cause of the multi-func­tional nature of RFCS (re­duc­ing the ef­fects of harm­ful pathogens, as well as my­co­tox­ins in feed) less en­ergy is needed for fight­ing dis­ease chal­lenges and sup­port­ing the im­mune sys­tem, mak­ing more en­ergy avail­able for growth, syn­er­gis­ti­cally help­ing poul­try per­for­mance.

Re­search Re­sults

Sci­en­tific stud­ies ver­ify the pos­i­tive ben­e­fits of RFCS to help con­trol Salmonella in breed­ing hens.

For ex­am­ple, a study con­ducted in the US at North Carolina State Univer­sity found that preva­lence of ce­cal Salmonella in breeder hens fed the con­trol diet (which did not con­tain any RFCS), was 71.4 per­cent. Mean­while, preva­lence of Salmonella in breeder hens fed the RFC diet was 0 per­cent, as shown in the chart above.

Fur­ther, as shown in the chart be­low, when broiler prog­eny of these birds were fed the same diet as their par­ents (breed­ers), broil­ers on the RFC diet con­tained no ev­i­dence of ce­cal Salmonella. How­ever, 12.5 per­cent of broiler prog­eny ceca con­tained Salmonella when not fed a diet con­tain­ing RFCS.

The re­searchers con­cluded that the sup­ple­men­ta­tion with RFCS pre­vented ce­cal Salmonella col­o­niza­tion in the pul­lets and the or­gan­ism passed harm­lessly through the an­i­mal, re­duc­ing the odds of in­fec­tion.

Ul­ti­mately, these data from re­search tri­als show that you can de­pend on RFCS to en­hance your flock’s health and pro­duc­tiv­ity while re­duc­ing the un­wanted spread and neg­a­tive ef­fects of Salmonella.¡

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