A step-up ractopamine feeding program for finishing pigs
Background: Ractopamine (RAC) supplementation in the feed has been evaluated as a strategy to increase productive efficiency in finishing pigs. Objective: To evaluate the effects of different RAC dietary levels on performance, carcass traits, efficiency of lysine (ELU) and energy (EEU) utilization,...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Universidad de Antioquia
2018-12-01
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| Series: | Revista Colombiana de Ciencias Pecuarias |
| Subjects: | |
| Online Access: | https://revistas.udea.edu.co/index.php/rccp/article/view/330974 |
| _version_ | 1818998489312395264 |
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| author | Tiago L. Holzback Anderson Corassa Charles Kiefer Alexandre O. Teixeira Leonardo M. Moreira Carlos M. R. Junior |
| author_facet | Tiago L. Holzback Anderson Corassa Charles Kiefer Alexandre O. Teixeira Leonardo M. Moreira Carlos M. R. Junior |
| author_sort | Tiago L. Holzback |
| collection | DOAJ |
| description | Background: Ractopamine (RAC) supplementation in the feed has been evaluated as a strategy to increase productive efficiency in finishing pigs. Objective: To evaluate the effects of different RAC dietary levels on performance, carcass traits, efficiency of lysine (ELU) and energy (EEU) utilization, and economic viability in finishing pig. Methods: A total of 40 barrows (74.75 ± 5.22 kg) were fed four RAC levels (0, 5, 10 and 5-10 mg/kg step-up program) from 0-14, 15-31 and 0-31 days. Performance, carcass characteristics, ELU, EEU, cost per unit of weight gain (CWG), payment and profit parameters were measured. The animals were distributed in a completely randomized design in four treatments, with ten replicates per treatment. The experimental unit was each animal. Results: Pigs fed RAC diets showed increased body weights at 14 and 31 days, average daily gain (ADG) at 0–14 and 0–31 days, ELU at 0-14 days, and hot carcass weight as compared with those fed the control diet. The step-up program as compared to the 10 mg/kg RAC concentration resulted in increased body weight, feed/gain ratio (FGR), ADG, ELU, EEU and CWG at 0–14 days. Payment by weight and bonus payment were better for treatments with RAC as compared to control. Conclusions: Pigs fed RAC improved performance, carcass weight, ELU, EEU and economic viability. The results were better for the step-up program compared with the intermittent use of 10 mg/kg RAC. |
| first_indexed | 2024-12-20T22:02:20Z |
| format | Article |
| id | doaj.art-3f6ebdc416fe4545b83ca78619c4883f |
| institution | Directory Open Access Journal |
| issn | 2256-2958 |
| language | English |
| last_indexed | 2024-12-20T22:02:20Z |
| publishDate | 2018-12-01 |
| publisher | Universidad de Antioquia |
| record_format | Article |
| series | Revista Colombiana de Ciencias Pecuarias |
| spelling | doaj.art-3f6ebdc416fe4545b83ca78619c4883f2022-12-21T19:25:19ZengUniversidad de AntioquiaRevista Colombiana de Ciencias Pecuarias2256-29582018-12-0131427628410.17533/udea.rccp.v31n4a0430045A step-up ractopamine feeding program for finishing pigsTiago L. Holzback0Anderson Corassa1Charles Kiefer2Alexandre O. Teixeira3Leonardo M. Moreira4Carlos M. R. Junior5Federal University of Mato GrossoFederal University of Mato GrossoFederal University of Mato Grosso do SulFederal University of São João del-ReiFederal University of São João del-ReiFederal University of LavrasBackground: Ractopamine (RAC) supplementation in the feed has been evaluated as a strategy to increase productive efficiency in finishing pigs. Objective: To evaluate the effects of different RAC dietary levels on performance, carcass traits, efficiency of lysine (ELU) and energy (EEU) utilization, and economic viability in finishing pig. Methods: A total of 40 barrows (74.75 ± 5.22 kg) were fed four RAC levels (0, 5, 10 and 5-10 mg/kg step-up program) from 0-14, 15-31 and 0-31 days. Performance, carcass characteristics, ELU, EEU, cost per unit of weight gain (CWG), payment and profit parameters were measured. The animals were distributed in a completely randomized design in four treatments, with ten replicates per treatment. The experimental unit was each animal. Results: Pigs fed RAC diets showed increased body weights at 14 and 31 days, average daily gain (ADG) at 0–14 and 0–31 days, ELU at 0-14 days, and hot carcass weight as compared with those fed the control diet. The step-up program as compared to the 10 mg/kg RAC concentration resulted in increased body weight, feed/gain ratio (FGR), ADG, ELU, EEU and CWG at 0–14 days. Payment by weight and bonus payment were better for treatments with RAC as compared to control. Conclusions: Pigs fed RAC improved performance, carcass weight, ELU, EEU and economic viability. The results were better for the step-up program compared with the intermittent use of 10 mg/kg RAC.https://revistas.udea.edu.co/index.php/rccp/article/view/330974beta-adrenergic agonistcarcass qualityeconomylysinepig nutrition |
| spellingShingle | Tiago L. Holzback Anderson Corassa Charles Kiefer Alexandre O. Teixeira Leonardo M. Moreira Carlos M. R. Junior A step-up ractopamine feeding program for finishing pigs Revista Colombiana de Ciencias Pecuarias beta-adrenergic agonist carcass quality economy lysine pig nutrition |
| title | A step-up ractopamine feeding program for finishing pigs |
| title_full | A step-up ractopamine feeding program for finishing pigs |
| title_fullStr | A step-up ractopamine feeding program for finishing pigs |
| title_full_unstemmed | A step-up ractopamine feeding program for finishing pigs |
| title_short | A step-up ractopamine feeding program for finishing pigs |
| title_sort | step up ractopamine feeding program for finishing pigs |
| topic | beta-adrenergic agonist carcass quality economy lysine pig nutrition |
| url | https://revistas.udea.edu.co/index.php/rccp/article/view/330974 |
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