Effects of Zinc Glycinate on Growth Performance, Serum Biochemical Indexes, and Intestinal Morphology of Yellow Feather Broilers

The purpose of this study was to investigate the effects of zinc glycinate (Gly-Zn) on growth performance, serum biochemical index, intestinal morphology, and hepatic metallothionein (MT) mRNA expression in the liver of yellow feather broilers. A total of 540 18-day-old yellow feather broilers were...

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Veröffentlicht in:	Biological trace element research 2022-09, Vol.200 (9), p.4089-4097
Hauptverfasser:	Zhu, Xiaoping, Shang, Xiuguo, Lin, Guozhao, Li, Haojie, Feng, Xin, Zhang, Huihua
Format:	Artikel
Sprache:	eng
Schlagworte:	Animal Feed - analysis Animals average daily gain Biochemistry Biomedical and Life Sciences Biotechnology blood serum Chickens - metabolism Control Diet Diet - veterinary Dietary Supplements Duodenum Feathers feed intake Gene expression Glutathione Glutathione peroxidase Glycine - analogs & derivatives Growth growth performance Ileum Intestine Intestines Jejunum Life Sciences Liver Malondialdehyde Metallothionein Metallothionein - genetics Metallothionein - metabolism Morphological indexes Morphology Nutrition Oncology Parameters Performance indices Peroxidase RNA, Messenger - metabolism Serum Small intestine Tibia transcription (genetics) villi Villus Zinc Zinc - metabolism Zinc sulfate
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Zusammenfassung:	The purpose of this study was to investigate the effects of zinc glycinate (Gly-Zn) on growth performance, serum biochemical index, intestinal morphology, and hepatic metallothionein (MT) mRNA expression in the liver of yellow feather broilers. A total of 540 18-day-old yellow feather broilers were randomly divided into three groups: control group (basal diet), ZnSO 4 group (basal diet plus 60 mg Zn/kg from ZnSO 4 ), and Gly-Zn group (basal diet plus 60 mg Zn/kg from zinc glycinate). Each treatment group had 6 replicates with 30 birds in each replicate. The experiment lasted for 42 days (18 to 59 days of age). The results showed that Gly-Zn supplementation significantly improved the average daily gain (ADG) and average daily feed intake (ADFI) of broilers during 18 to 39 days of age compared with that in the control group ( P
ISSN:	0163-4984 1559-0720
DOI:	10.1007/s12011-021-02990-x