Bioavailability of liquid methionine hydroxy analogue-free acid relative to DL-methionine in broilers
An experiment with broiler chickens was conducted to compare the relative bioavailability of liquid methionine hydroxy analogue free acid (MHA-FA) with that of DL-methionine (DLM) during fattening to 35 days of age. Ross 308 male chicks were allotted to 9 treatments, each consisting of six replicate...
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| Format: | Article |
| Language: | English |
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Mendel University Press
2013-01-01
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| Series: | Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis |
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| Online Access: | https://acta.mendelu.cz/61/5/1513/ |
| _version_ | 1811304622323662848 |
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| author | Jiří Zelenka Jaroslav Heger Vlastislav Machander Markus Wiltafsky Martin Lešták |
| author_facet | Jiří Zelenka Jaroslav Heger Vlastislav Machander Markus Wiltafsky Martin Lešták |
| author_sort | Jiří Zelenka |
| collection | DOAJ |
| description | An experiment with broiler chickens was conducted to compare the relative bioavailability of liquid methionine hydroxy analogue free acid (MHA-FA) with that of DL-methionine (DLM) during fattening to 35 days of age. Ross 308 male chicks were allotted to 9 treatments, each consisting of six replicates of 140 birds/pen. Four graded levels (0.04, 0.08, 0.16, and 0.28 %) of MHA-FA or DLM products (weight/weight comparison) were added to a maize-wheat-soyabean meal basal diet deficient in sulphur amino acids. The criteria of response were body weight, feed conversion ratio, carcass yield and breast meat yield. Significant responses to graded levels of both methionine sources were observed in all response criteria. Using a multi-exponential model describing the dose-response relationships, the bioavailability estimates of MHA-FA relative to DLM on a weight-to-weight basis were 68, 70, 54 and 59 % for body weight, feed conversion, carcass yield and breast meat yield, respectively. If MHA-FA was compared with DLM on equimolar basis its bioavailability was 77.7, 79.0, 59.3 and 64.6 for body weight, feed conversion, carcass yield and breast meat yield, respectively. The bioavailability of MHA-FA for carcass yield and breast meat yield was significantly (P < 0.05) lower than that of DLM on a weight-to-weight and on equimolar basis. |
| first_indexed | 2024-04-13T08:09:20Z |
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| id | doaj.art-becc3aaf0c4743e883954606d1e30f39 |
| institution | Directory Open Access Journal |
| issn | 1211-8516 2464-8310 |
| language | English |
| last_indexed | 2024-04-13T08:09:20Z |
| publishDate | 2013-01-01 |
| publisher | Mendel University Press |
| record_format | Article |
| series | Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis |
| spelling | doaj.art-becc3aaf0c4743e883954606d1e30f392022-12-22T02:55:02ZengMendel University PressActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis1211-85162464-83102013-01-016151513152010.11118/actaun201361051513Bioavailability of liquid methionine hydroxy analogue-free acid relative to DL-methionine in broilersJiří Zelenka0Jaroslav Heger1Vlastislav Machander2Markus Wiltafsky3Martin Lešták4Department of Animal Nutrition and Forage Production, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech RepublicDepartment of Animal Nutrition and Forage Production, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech RepublicInternational Poultry Testing Station, Ústrašice 63, 390 02 Tábor, Czech RepublicEvonik Industries AG, 10 A539, Rodenbacher Chaussee 4, 63457 Hanau-Wolfgang, GermanyEvonik Industries AG, 10 A539, Rodenbacher Chaussee 4, 63457 Hanau-Wolfgang, GermanyAn experiment with broiler chickens was conducted to compare the relative bioavailability of liquid methionine hydroxy analogue free acid (MHA-FA) with that of DL-methionine (DLM) during fattening to 35 days of age. Ross 308 male chicks were allotted to 9 treatments, each consisting of six replicates of 140 birds/pen. Four graded levels (0.04, 0.08, 0.16, and 0.28 %) of MHA-FA or DLM products (weight/weight comparison) were added to a maize-wheat-soyabean meal basal diet deficient in sulphur amino acids. The criteria of response were body weight, feed conversion ratio, carcass yield and breast meat yield. Significant responses to graded levels of both methionine sources were observed in all response criteria. Using a multi-exponential model describing the dose-response relationships, the bioavailability estimates of MHA-FA relative to DLM on a weight-to-weight basis were 68, 70, 54 and 59 % for body weight, feed conversion, carcass yield and breast meat yield, respectively. If MHA-FA was compared with DLM on equimolar basis its bioavailability was 77.7, 79.0, 59.3 and 64.6 for body weight, feed conversion, carcass yield and breast meat yield, respectively. The bioavailability of MHA-FA for carcass yield and breast meat yield was significantly (P < 0.05) lower than that of DLM on a weight-to-weight and on equimolar basis.https://acta.mendelu.cz/61/5/1513/DLMMHA-FAchickenweight gainfeed conversioncarcass yield |
| spellingShingle | Jiří Zelenka Jaroslav Heger Vlastislav Machander Markus Wiltafsky Martin Lešták Bioavailability of liquid methionine hydroxy analogue-free acid relative to DL-methionine in broilers Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis DLM MHA-FA chicken weight gain feed conversion carcass yield |
| title | Bioavailability of liquid methionine hydroxy analogue-free acid relative to DL-methionine in broilers |
| title_full | Bioavailability of liquid methionine hydroxy analogue-free acid relative to DL-methionine in broilers |
| title_fullStr | Bioavailability of liquid methionine hydroxy analogue-free acid relative to DL-methionine in broilers |
| title_full_unstemmed | Bioavailability of liquid methionine hydroxy analogue-free acid relative to DL-methionine in broilers |
| title_short | Bioavailability of liquid methionine hydroxy analogue-free acid relative to DL-methionine in broilers |
| title_sort | bioavailability of liquid methionine hydroxy analogue free acid relative to dl methionine in broilers |
| topic | DLM MHA-FA chicken weight gain feed conversion carcass yield |
| url | https://acta.mendelu.cz/61/5/1513/ |
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