Effect of an addition of phytase to diets with variable zinc and low phosphorus content on performance, carcass characteristics and bone mineralization of broilers

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dc.contributor.authorCufadar, Y
dc.contributor.authorBahtiyarca, Y
dc.date.accessioned2020-03-26T16:48:13Z
dc.date.available2020-03-26T16:48:13Z
dc.date.issued2004
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractA 6-week experiment with 960 unsexed one day-old broiler chicks was conducted to evaluate the effect Of Microbial phytase (Natuphos 500) on the performance. carcass characteristics and toe ash as a measure of bone mineralization when varying levels of zinc (Zn) and low phosphorus content in diet were used. Twelve treatments consisting of three levels of Zn (40. 60 and 160 mg/kg diet) and four levels of phytase (0, 500, 1000 and 1500 U / k2 diet) in 3 x 4 factorial arrangement were used with four replicates of twenty birds each. Increase of the dietary zinc content resulted in a non-significant reduction in the body weight gain (BWG), feed consumption (FC). weights of the carcass, neck, thighs, back + breast and a significant decrease (P< 0.05) in weight of wings. There was also a tendency of increasing feed/gain ratio and toe ash percentage. On the other hand. supplemental phytase induced significant increases of FC during the first (0 to 3 weeks), the second (4 to 6 weeks) periods and during all the experimental duration. and significant decreases of feed/gain ratios (for the second period and for all the experimental period). Carcass weights and their components were also increased by phytase supplementation (p < 0.05-0.01). The differences among Supplemental phytase with respect to these parameters have not been significant. In the experiment, significant Zn level x phytase level interactions (P< 0.05) have been observed for BWG. BWG have been significantly improved by phytase addition at three dietary Zn levels whatever the age period considered and the effects of this interaction on the BWG were different during the different age periods. Also. the negative impacts of increasing Zn levels on FC feed/ gain ratio and carcass traits (P> 0.05) have been completely corrected by inclusion of phytase to diets. The results indicate that supplementing microbial phytase to broiler diets with various levels of Zn has improved growth performances and carcass traits.en_US
dc.identifier.endpage361en_US
dc.identifier.issn0035-1555en_US
dc.identifier.issn2258-0646en_US
dc.identifier.issue7en_US
dc.identifier.scopusqualityQ3en_US
dc.identifier.startpage355en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12395/19003
dc.identifier.volume155en_US
dc.identifier.wosWOS:000223781900001en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherECOLE NATIONALE VETERINAIRE TOULOUSEen_US
dc.relation.ispartofREVUE DE MEDECINE VETERINAIREen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectzincen_US
dc.subjectphytaseen_US
dc.subjectbroileren_US
dc.subjectmineralizationen_US
dc.subjectgrowthen_US
dc.subjectcarcass traitsen_US
dc.titleEffect of an addition of phytase to diets with variable zinc and low phosphorus content on performance, carcass characteristics and bone mineralization of broilersen_US
dc.typeArticleen_US

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