The Effects of Microbial Phytase to Low-Protein Diets Supplemented with Individual Amino Acids on Performance and Carcass Characteristics in Broilers

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dc.contributor.authorCufadar, Yusuf
dc.contributor.authorYildiz, Alp Onder
dc.contributor.authorOlgun, Osman
dc.date.accessioned2020-03-26T17:40:39Z
dc.date.available2020-03-26T17:40:39Z
dc.date.issued2009
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractA 6 weeks experiment with 450 unsexed, one day-old broilers was carried out to determine the effects of adding phytase to low-protein diets supplemented with individual amino acids on performance, carcass traits and some organ weights. The chicks were fed with diets containing 22 and 20% Crude Protein (CP; control) for the 0-3 and for the 4-6 weeks of period, respectively. During the 0-3 and 4-6 weeks of periods, the other groups were fed with low protein diets (20 and 18% CP, respectively) containing lysine, methionine and threonine (EAA) levels of 100, 110, 120, or 130% of NRC recommendation. The diets were then supplemented with (500 FTU kg(-1) of diet; Natuphos, BASF, Germany) and without additional microbial phytase. This resulted in 4x2 factorial arrangements with four levels of and two levels of phytase (0 and 500 FTU kg(-1)) and so a total of 9 treatments with a control group were tested. Each treatment was replicated 3 times with each replication consisting of 15 chicks. All other nutrient contents of diets were met the requirements by NRC recommendation and were contained 3200 kcal ME kg(-1). The effects of interactions consist of EAA and phytase levels on body weight gain, feed intake, feed conversion ratio, carcass traits except for wings weight and relative organs weight had no significant (p>0.05). There were no main effects of dietary EAA levels on body weight gain, feed intake, feed conversion ratio, all measured carcass traits and relative organs weight, except for pancreas weight, in the experiment. As a main factor, effects of dietary phytase levels on all parameters had no significant. Also, there was no significant difference in terms of performances, carcass traits and organ weights (% of body weight) between control diet and low-CP diets. These data suggest that broilers fed low CP, EAA supplemented diet (lysine, methionine, threonine levels of 100% NRC recommendation) have performance and carcass traits similar to broilers fed higher level of CP recommended by NRC.en_US
dc.description.sponsorshipUniversity of Selcuk (BAP), Konya, TurkeySelcuk Universityen_US
dc.description.sponsorshipThe research was funded in part by a grant from the University of Selcuk (BAP), Konya, Turkey. The authors wish to thanks Mr. Mehmet Ali Yildiz, Ph.D., for statistical analysis and Mr. Yilmaz Bahtiyarca, PhD., for technical support.en_US
dc.identifier.endpage1448en_US
dc.identifier.issn1680-5593en_US
dc.identifier.issn1993-601Xen_US
dc.identifier.issue7en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage1443en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12395/23937
dc.identifier.volume8en_US
dc.identifier.wosWOS:000265889200037en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherMEDWELL ONLINEen_US
dc.relation.ispartofJOURNAL OF ANIMAL AND VETERINARY ADVANCESen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.selcuk20240510_oaigen_US
dc.subjectBroileren_US
dc.subjectcarcassen_US
dc.subjectlow-proteinen_US
dc.subjectperformanceen_US
dc.subjectphytaseen_US
dc.subjectamino acidsen_US
dc.titleThe Effects of Microbial Phytase to Low-Protein Diets Supplemented with Individual Amino Acids on Performance and Carcass Characteristics in Broilersen_US
dc.typeArticleen_US

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