Comparative Effects of Supplemental DL-2-hydroxy-4-〈methylthio〉 Butanoic Acid and DL-methionine in Diet on Egg Production and Quality in Laying Hens
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- Bunchasak Chaiyapoom
- Department of Animal Science, Faculty of Agriculture Kasetsart University, Thailand Department of Animal Science, Faculty of Agriculture Kasetsart University, Thailand
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- Ratchadapornvanitch Yanisa
- Department of Animal Science, Faculty of Agriculture Kasetsart University, Thailand Department of Animal Science, Faculty of Agriculture Kasetsart University, Thailand
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- Thiengtham Jamroen
- Department of Animal Science, Faculty of Agriculture Kasetsart University, Thailand Department of Animal Science, Faculty of Agriculture Kasetsart University, Thailand
書誌事項
- タイトル別名
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- Comparative Effects of Supplemental DL-2-hydroxy-4-[methylthio] Butanoic Acid and DL-methionine in Diet on Egg Production and Quality in Laying Hens
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This study was conducted to compare the effects of DL-2-hydroxy-4-[methylthio] butanoic acid (HMB) and DL-methionine (DLM) on egg production performance and egg quality of laying hens. Two hundred and eighty-eight commercial laying hens were assigned to 3 dietary treatment groups and fed the experimental diets from 34 to 46 weeks of age. The bioefficacy of HMB relative to DL-methionine (DLM) was set at 88% (weight/weight), therefore 0.115% of HMB and 0.101% of DLM were added to a basal diet. DLM and HMB supplementation increased body weight, feed intake, hen-day egg production, egg weight, FCR and egg mass (P<0.01). These supplementations also increased yolk and albumen weight (g/egg) (P<0.01), while DLM slightly decreased albumen weight (% of egg). Consequently, Haugh unit was poor by DLM supplementation but did not by HMB supplementation (P<0.05). DLM supplementation significantly increased fat content in egg (g/egg and % of egg), though level of estradiol in blood was elevated by HMB supplementation. In conclusion, HMB supplementation (as 88% bioefficacy of DLM) can be used as an effective methionine source. However, mechanism of protein and fat synthesis and/or degradation of laying hens may be differed when different form of methionine is supplied.
収録刊行物
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- The Journal of Poultry Science
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The Journal of Poultry Science 49 (4), 260-267, 2012
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詳細情報 詳細情報について
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- CRID
- 1390001205207213312
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- NII論文ID
- 10031120753
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- NII書誌ID
- AA11564513
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- COI
- 1:CAS:528:DC%2BC38XhvVelur3E
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- ISSN
- 13490486
- 13467395
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- NDL書誌ID
- 024025542
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可