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Hydroxychloride trace minerals have a positive effect on growth performance,carcass quality and impact ileal and cecal microbiota in broiler chickens

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Journal of Animal Science and Biotechnology 2021年第3期12卷 1112-1124页

作者： Sandra J.A.van Kuijk Yanming Han ana Isabel Garcia-Ruiz ana rodiles Trouw Nutrition R&D P.O.Box 2993800AGAmersfoortthe Netherlands Trouw Nutrition R&D 45950 Casarrubios del MonteToledoSpain.

Background:The objective was to study the effect of hydroxychloride trace minerals(HTM)on growth performance,carcass quality and gut microbiota of broiler chickens in comparison to sulphate trace minerals(STM).In total 1440 male Ross 308 day-old chicks were divided into 12 replicate pens with 30 birds each per treatment.Four different treatments were tested according to a 2×2 factorial study design,where the animals received a three phase diet containing either inorganic Zn from sulphates or Zn from HTM in high(80 mg/kg Zn)or low Zn dosage(20 mg/kg Zn).In all treatments 15 mg/kg Cu was added from the same mineral source as the Zn.Body weight and feed intake were measured on day 0,10,27 and 34,while carcass and breast meat yields were measured at the end of the study(day 34).In addition,high-throughput sequencing analysis was performed in digesta samples from ileum and cecum to study the gut microbiome(day 34).Results:The results showed an improved(Panalysis of the microbiota revealed a higher microbial diversity in the ileum and cecum of HTM fed birds compared to STM fed birds.Taxonomical differences were mainly found in the cecum,specifically between the group fed high and low Zn levels from HTM.This correlated with the mineral contents observed in the cecal digesta.Comparing both groups fed 80 mg/kg Zn,the HTM group had more Streptococcaceae,Streptococcus,Clostridia,Weissella and Leuconostocaceae compared to the STM group.Conclusions:HTM improved growth performance of broiler chickens;and the source and level of Zn modulated the gut micro

关键词： Broiler chickens Growth performance Gut microbiota Hydroxychloride trace minerals

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