<b>Carcass characteristics of sheep fed diets with slow-release urea replacing conventional urea
This study aimed to evaluate the effects of adding slow-release urea to replace conventional urea in the diet on carcass characteristics of feedlot sheep. We used 20 Santa Ines x SRD rams, with average body weight of 21.1±1.2 kgand average age of 120 days, distributed in a completely randomized desi...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Editora da Universidade Estadual de Maringá (Eduem)
2014-07-01
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| Series: | Acta Scientiarum: Animal Sciences |
| Subjects: | |
| Online Access: | http://186.233.154.254/ojs/index.php/ActaSciAnimSci/article/view/21379 |
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| author | Evanilton Moura Alves Márcio dos Santos Pedreira Beatriz Silva Moreira Leile Daiane Ribeiro Freire Thiago Ramos Lima Cristiane Leal dos Santos-Cruz |
| author_facet | Evanilton Moura Alves Márcio dos Santos Pedreira Beatriz Silva Moreira Leile Daiane Ribeiro Freire Thiago Ramos Lima Cristiane Leal dos Santos-Cruz |
| author_sort | Evanilton Moura Alves |
| collection | DOAJ |
| description | This study aimed to evaluate the effects of adding slow-release urea to replace conventional urea in the diet on carcass characteristics of feedlot sheep. We used 20 Santa Ines x SRD rams, with average body weight of 21.1±1.2 kgand average age of 120 days, distributed in a completely randomized design with 5 treatments. The replacement levels used as treatments were 0, 20, 40, 60, and 80%, composing diets of about 12% crude protein, with 50 % Tifton-85 hay and 50% concentrate. There was no influence of slow release urea on weight at slaughter (35.17 kg), and on hot (16.75 kg) and cold (16.24 kg) carcass weight, but the yield of these carcasses showed quadratic trend, revealing lower percentages at 48.5 and 47.63% replacement levels, respectively. The weights and yields of cuts did not change, except for the posterior arm, whose values showed a cubic trend. Objective measures of carcass, loin eye area, and subjective evaluations of conformation, finishing and marbling of carcasses were not affected. The subcutaneous fat thickness decreased linearly (4.25 to2.48 mm). The inclusion of slow release urea in the diet changes the yield and reduces subcutaneous fat, however, it does not influence other carcass characteristics. |
| first_indexed | 2024-04-13T00:29:04Z |
| format | Article |
| id | doaj.art-98ca47c178154bde8177389cb5dd7708 |
| institution | Directory Open Access Journal |
| issn | 1806-2636 1807-8672 |
| language | English |
| last_indexed | 2024-04-13T00:29:04Z |
| publishDate | 2014-07-01 |
| publisher | Editora da Universidade Estadual de Maringá (Eduem) |
| record_format | Article |
| series | Acta Scientiarum: Animal Sciences |
| spelling | doaj.art-98ca47c178154bde8177389cb5dd77082022-12-22T03:10:32ZengEditora da Universidade Estadual de Maringá (Eduem)Acta Scientiarum: Animal Sciences1806-26361807-86722014-07-0136330331010.4025/actascianimsci.v36i3.2137910909<b>Carcass characteristics of sheep fed diets with slow-release urea replacing conventional ureaEvanilton Moura Alves0Márcio dos Santos Pedreira1Beatriz Silva Moreira2Leile Daiane Ribeiro Freire3Thiago Ramos Lima4Cristiane Leal dos Santos-Cruz5Instituto Federal BaianoUniversidade Estadual do Sudoeste da BahiaUniversidade Estadual do Sudoeste da BahiaUniversidade Estadual do Sudoeste da BahiaUniversidade Estadual do Sudoeste da BahiaUniversidade Estadual do Sudoeste da BahiaThis study aimed to evaluate the effects of adding slow-release urea to replace conventional urea in the diet on carcass characteristics of feedlot sheep. We used 20 Santa Ines x SRD rams, with average body weight of 21.1±1.2 kgand average age of 120 days, distributed in a completely randomized design with 5 treatments. The replacement levels used as treatments were 0, 20, 40, 60, and 80%, composing diets of about 12% crude protein, with 50 % Tifton-85 hay and 50% concentrate. There was no influence of slow release urea on weight at slaughter (35.17 kg), and on hot (16.75 kg) and cold (16.24 kg) carcass weight, but the yield of these carcasses showed quadratic trend, revealing lower percentages at 48.5 and 47.63% replacement levels, respectively. The weights and yields of cuts did not change, except for the posterior arm, whose values showed a cubic trend. Objective measures of carcass, loin eye area, and subjective evaluations of conformation, finishing and marbling of carcasses were not affected. The subcutaneous fat thickness decreased linearly (4.25 to2.48 mm). The inclusion of slow release urea in the diet changes the yield and reduces subcutaneous fat, however, it does not influence other carcass characteristics.http://186.233.154.254/ojs/index.php/ActaSciAnimSci/article/view/21379meat cutsnon-protein nitrogennutritionsmall ruminantsyield |
| spellingShingle | Evanilton Moura Alves Márcio dos Santos Pedreira Beatriz Silva Moreira Leile Daiane Ribeiro Freire Thiago Ramos Lima Cristiane Leal dos Santos-Cruz <b>Carcass characteristics of sheep fed diets with slow-release urea replacing conventional urea Acta Scientiarum: Animal Sciences meat cuts non-protein nitrogen nutrition small ruminants yield |
| title | <b>Carcass characteristics of sheep fed diets with slow-release urea replacing conventional urea |
| title_full | <b>Carcass characteristics of sheep fed diets with slow-release urea replacing conventional urea |
| title_fullStr | <b>Carcass characteristics of sheep fed diets with slow-release urea replacing conventional urea |
| title_full_unstemmed | <b>Carcass characteristics of sheep fed diets with slow-release urea replacing conventional urea |
| title_short | <b>Carcass characteristics of sheep fed diets with slow-release urea replacing conventional urea |
| title_sort | b carcass characteristics of sheep fed diets with slow release urea replacing conventional urea |
| topic | meat cuts non-protein nitrogen nutrition small ruminants yield |
| url | http://186.233.154.254/ojs/index.php/ActaSciAnimSci/article/view/21379 |
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