RFCS pos­i­tively af­fect egg pa­ram­e­ters

The Poultry Bulletin - - CONTENTS -

Re­searchers re­cently ex­am­ined whether Re­fined Func­tional Car­bo­hy­drates (RFCS) can of­fer the same ef­fi­ciency ben­e­fits for lay­ers as has been shown in broil­ers - that is, can RFCS pos­i­tively in­flu­ence egg pa­ram­e­ters like they can im­prove broiler ef­fi­ciency? At the same time, the re­searchers also ex­plored how well RFCS com­pare to some other com­mon feed ad­di­tives.

The study was con­ducted in Gu­atemala and fea­tured 200 Lohman White Clas­sic lay­ers at 28 weeks of age. The birds were al­lot­ted into five treat­ments in a com­pletely ran­dom­ized block de­sign. The 10-week study in­cluded four birds per cage, with eight repli­ca­tions per treat­ment.

The birds were given a twoweek adap­ta­tion pe­riod that was fol­lowed by eight weeks of data col­lec­tion. A basal layer diet was for­mu­lated to meet the strain of egg-type chicken used. Wa­ter via two nip­ple drinkers per cage and mash feed pre­pared at a com­mer­cial feed mill was pro­vided. In ad­di­tion, 14.5 hours of to­tal light (3.5 hours of ar­ti­fi­cial light) was pro­vided dur­ing the study.

Re­search Re­sults

Data showed that RFC re­sults were ex­cel­lent com­pared to some of the other com­peti­tors. RFCS were very good at im­prov­ing both egg pro­duc­tion ef­fi­ciency as well as im­prov­ing some of the egg pa­ram­e­ters, sup­port­ing its ap­pli­ca­tion in the layer in­dus­try very well. For ex­am­ple: • All treat­ments im­proved egg pro­duc­tion com­pared to con­trol, but RFCS gave the largest nu­mer­i­cal im­prove­ment in per­cent pro­duc­tion and num­ber of eggs/hen housed com­pared to other feed ad­di­tives

tested (Fig­ure 1). Feed ef­fi­ciency was im­proved in hens sup­ple­mented with RFCS and an herbal ex­tract com­pared to all other treat­ments (P<0.05) (Fig­ure 2). In ad­di­tion, re­sults also showed: Egg weight was not af­fected by treat­ments (Ta­ble 1). Egg yolk colour and

Haugh units were sig­nif­i­cantly higher in hens sup­ple­mented with an an­tibi­otic, RFCS and an herbal ex­tract com­pared to con­trol and pro­bi­otic (Ta­ble 1). Egg shell thick­ness was high­est in hens re­ceiv­ing an herbal ex­tract and low­est in those re­ceiv­ing the pro­bi­otic, with all other treat­ments be­ing in­ter­me­di­ate (Ta­ble 1).

There­fore, the re­searchers con­cluded that RFCS fed to lay­ers re­sulted in the largest im­prove­ment in layer per­for­mance while im­prov­ing some egg pa­ram­e­ters com­pared to other feed ad­di­tives tested.¡

This ar­ti­cle was au­thored by Dr. San­gita Jalukar, Prod­uct De­vel­op­ment and Re­search Co­or­di­na­tor, Arm & Ham­mer An­i­mal Nu­tri­tion. Ref­er­ences avail­able on re­quest. To learn more about RFCS, visit Ahan­i­mal­nu­tri­tion.com.

by Dr San­gita Jalukar

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