Effects of Methionine Hydroxy Analog Chelated Cu/Mn/Zn on Laying Performance, Egg Quality, Enzyme Activity and Mineral Retention of Laying Hens
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- Sun Qiujuan
- The State Key Lab of Animal Nutrition, College of Animal Science and Technology,China Agricultural University, Beijing 100193, China
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- Guo Yuming
- The State Key Lab of Animal Nutrition, College of Animal Science and Technology,China Agricultural University, Beijing 100193, China
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- Li Jianhui
- The State Key Lab of Animal Nutrition, College of Animal Science and Technology,China Agricultural University, Beijing 100193, China
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- Zhang Tianguo
- The State Key Lab of Animal Nutrition, College of Animal Science and Technology,China Agricultural University, Beijing 100193, China
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- Wen Jinlei
- The State Key Lab of Animal Nutrition, College of Animal Science and Technology,China Agricultural University, Beijing 100193, China
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Description
The objective of this research was to evaluate effects of partial replacement of trace mineral (Cu, Mn, Zn) sulfate by methionine hydroxy analog (MHA) chelates on laying performance, egg quality, enzyme activity and mineral retention in layers. Laying hens (Hyline Brown) of 37 weeks old were fed with 4 different diets with organic or inorganic trace mineral supplementations at equal levels. Treatments are: 1) Control (CON): a basal diet was supplemented with inorganic trace minerals (sulfate source, i.e. Cu 10, Zn 30 and Mn 30 mg/kg of diet); 2) Cu-MHA: Cu in control diet was replaced with 10 mg/kg as Cu-MHA; 3) Zn-MHA: Zn in control diet was replaced with 20 mg/kg as Zn-MHA; 4) Mn-MHA: Mn in control diet was replaced with 20 mg/kg as Mn-MHA. Experiment lasted for 14 weeks from 39 to 52 wk of age. Results showed that eggshell thickness was increased (P<0.05) by Mn-MHA and Zn-MHA supplementation. The supplementation of organic minerals increased (P<0.05) Haugh unit after 10 d storage. Ceruloplasmin (CP, P=0.051), carbonic anhydrase (CA, P<0.05) and Mn-superoxide dismutase (SOD, P<0.05) activities were increased in animals treated with organic minerals. Compared with control group, Cu-MHA significantly increased (P<0.01) Cu concentration in liver, and Zn-MHA increased (P<0.05) Zn concentration in yolk. No difference was found in Mn concentration between the two Mn sources. Interactions between mineral sources and feeding length were observed in yolk Cu (P<0.01), tibia Zn (P<0.05), liver (P<0.05) and yolk (P=0.063) Mn retention. In conclusion, MHA chelates of trace minerals (Cu, Zn and Mn) showed higher bioavailability compared with the sulfates when fed to laying hens.
Journal
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- The Journal of Poultry Science
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The Journal of Poultry Science 49 (1), 20-25, 2012
Japan Poultry Science Association
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Keywords
Details 詳細情報について
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- CRID
- 1390282680182485120
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- NII Article ID
- 130004446345
- 10030227225
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- NII Book ID
- AA11564513
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- ISSN
- 13490486
- 13467395
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- NDL BIB ID
- 023396065
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed