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dc.contributor.authorHofmann, P.
dc.contributor.authorKrieg, J.
dc.contributor.authorFrancesch, M.
dc.contributor.authorFeuerstein, D.
dc.contributor.authorRodehutscord, M.
dc.contributor.otherProducció Animalca
dc.date.accessioned2022-05-16T10:14:59Z
dc.date.available2022-05-16T10:14:59Z
dc.date.issued2022-03-31
dc.identifier.citationHofmann, P., J. Krieg, M. Francesch, D. Feuerstein, and M. Rodehutscord. 2022. "Effects Of Added Phytase On Growth Performance, Carcass Traits, And Tibia Ash Of Broiler Chickens Fed Diets With Reduced Amino Acid, Crude Protein, And Phosphorus Concentration". Journal Of Applied Poultry Research 31 (3): 100258. doi:10.1016/j.japr.2022.100258.ca
dc.identifier.issn1056-6171ca
dc.identifier.urihttp://hdl.handle.net/20.500.12327/1755
dc.description.abstractThis experiment was conducted to investigate the effect of phytase supplementation in diets reduced in amino acids (AA), crude protein (CP), and phosphorus (P) on growth performance, carcass traits, and tibia ash of broiler chickens. A total of 2,240 unsexed Ross 308 broiler chickens were used in 56 floor pens with 40 birds each and fed one of eight dietary treatments in seven replicates until 35 d of age. A positive control (PC) diet and diets with dietary AA/CP level reduced by 2, 4, and 6% were used with and without supplementation with 1,500 FTU phytase/kg. Starter, grower, and finisher diets were fed from d 1 to 10, d 10 to 25, and d 25 to 35, respectively. For the total period, no significant interaction effects between AA/CP level and phytase supplementation were detected for any measured traits. The ADG, ADFI, carcass weight, breast weight, and tibia ash weight were lower and FCR was higher compared to the PC diets when the AA/CP level was reduced by more than 2%. Phytase supplementation increased ADG, ADFI, final BW, and tibia ash weight. Tibia ash measurements showed that birds were adequately supplied with digestible phosphorus in all treatments, although dietary phosphorus and calcium were reduced in the phytase-supplemented diets. This enabled the feeding of broiler chickens without mineral phosphate supplements in grower and finisher diets. The results showed that supplementation with 1,500 FTU phytase/kg diminished the growth-decreasing effect of lower dietary AA/CP at all reduction steps.ca
dc.format.extent14ca
dc.language.isoengca
dc.publisherElsevierca
dc.relation.ispartofJournal of Applied Poultry Researchca
dc.rightsAttribution 4.0 Internationalca
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.titleEffects of added phytase on growth performance, carcass traits, and tibia ash of broiler chickens fed diets with reduced amino acid, crude protein, and phosphorus concentrationca
dc.typeinfo:eu-repo/semantics/articleca
dc.description.versioninfo:eu-repo/semantics/publishedVersionca
dc.rights.accessLevelinfo:eu-repo/semantics/openAccess
dc.embargo.termscapca
dc.subject.udc636ca
dc.identifier.doihttps://doi.org/10.1016/j.japr.2022.100258ca
dc.contributor.groupNutrició Animalca


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Attribution 4.0 International
Except where otherwise noted, this item's license is described as http://creativecommons.org/licenses/by/4.0/
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