Biological and economic performance of genetic groups under different diets
A grazing trial to evaluate biological and economic efficiencies for rearing young animals exclusively on pasture from weaning at 7 months of age, with average initial weight of 220 ± 12 kg, to slaughter was conducted from May 2006 to October 2007. Two levels of combined supplementation during the...
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| Format: | Article |
| Language: | English |
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Universidade Federal de Uberlândia
2018-12-01
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| Series: | Bioscience Journal |
| Subjects: | |
| Online Access: | https://seer-dev.ufu.br/index.php/biosciencejournal/article/view/39808 |
| _version_ | 1818157045895921664 |
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| author | Valéria Pacheco Batista Euclides Fernando Paim Costa Kepler Euclides Filho Denise Baptaglin Montagner Geraldo Ramos Figueiredo |
| author_facet | Valéria Pacheco Batista Euclides Fernando Paim Costa Kepler Euclides Filho Denise Baptaglin Montagner Geraldo Ramos Figueiredo |
| author_sort | Valéria Pacheco Batista Euclides |
| collection | DOAJ |
| description |
A grazing trial to evaluate biological and economic efficiencies for rearing young animals exclusively on pasture from weaning at 7 months of age, with average initial weight of 220 ± 12 kg, to slaughter was conducted from May 2006 to October 2007. Two levels of combined supplementation during the first dry period and four genetic groups (F1 Angus-Nellore; ½Braford-¼Angus-¼Nellore; ½Brahman-¼Angus-¼Nellore; and â…Charolais-â…œNellore) were used following a 4 by 2 factorial arrangement and eight replications in a completely randomized design. During both dry periods, eight paddocks of deferred Brachiaria brizantha were utilized. During the first dry period, concentrated mix (CM) and protein-mineral mixture (PMM) were provided in quantities of 0.8% and 0.2% of body weight (BW), respectively, for 142 days. During the subsequent rainy period, the animals were transferred to eight guinea grass paddocks for 197 days. During the second dry period, the animals were allocated to the same eight palisade grass paddocks used during the previous dry season. Steers had received supplementary diet with the same CM used before at 0.8% of BW. Animals supplemented with CM gained more BW than those supplemented with PMM; however, during the rainy season, steers supplemented with PMM performed better than those receiving CM during the preceding dry period. Using concentrate since the first dry season is a risky option in economic terms, as only the Angus-Nellore group showed a positive but small gain.
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| first_indexed | 2024-12-11T15:07:57Z |
| format | Article |
| id | doaj.art-790edc6dea4942ea91cfab953aaf1df2 |
| institution | Directory Open Access Journal |
| issn | 1981-3163 |
| language | English |
| last_indexed | 2024-12-11T15:07:57Z |
| publishDate | 2018-12-01 |
| publisher | Universidade Federal de Uberlândia |
| record_format | Article |
| series | Bioscience Journal |
| spelling | doaj.art-790edc6dea4942ea91cfab953aaf1df22022-12-22T01:00:50ZengUniversidade Federal de UberlândiaBioscience Journal1981-31632018-12-01346Biological and economic performance of genetic groups under different diets Valéria Pacheco Batista Euclides0Fernando Paim Costa1Kepler Euclides Filho2Denise Baptaglin Montagner3Geraldo Ramos Figueiredo4EMBRAPA GADO DE CORTEEMBRAPA GADO DE CORTEEMBRAPAEMBRAPA GADO DE CORTEEMBRAPA GADO DE CORTE A grazing trial to evaluate biological and economic efficiencies for rearing young animals exclusively on pasture from weaning at 7 months of age, with average initial weight of 220 ± 12 kg, to slaughter was conducted from May 2006 to October 2007. Two levels of combined supplementation during the first dry period and four genetic groups (F1 Angus-Nellore; ½Braford-¼Angus-¼Nellore; ½Brahman-¼Angus-¼Nellore; and â…Charolais-â…œNellore) were used following a 4 by 2 factorial arrangement and eight replications in a completely randomized design. During both dry periods, eight paddocks of deferred Brachiaria brizantha were utilized. During the first dry period, concentrated mix (CM) and protein-mineral mixture (PMM) were provided in quantities of 0.8% and 0.2% of body weight (BW), respectively, for 142 days. During the subsequent rainy period, the animals were transferred to eight guinea grass paddocks for 197 days. During the second dry period, the animals were allocated to the same eight palisade grass paddocks used during the previous dry season. Steers had received supplementary diet with the same CM used before at 0.8% of BW. Animals supplemented with CM gained more BW than those supplemented with PMM; however, during the rainy season, steers supplemented with PMM performed better than those receiving CM during the preceding dry period. Using concentrate since the first dry season is a risky option in economic terms, as only the Angus-Nellore group showed a positive but small gain. https://seer-dev.ufu.br/index.php/biosciencejournal/article/view/39808Brachiaria brizanthadeferred grazingfeed supplementationPanicum maximumrotational grazing |
| spellingShingle | Valéria Pacheco Batista Euclides Fernando Paim Costa Kepler Euclides Filho Denise Baptaglin Montagner Geraldo Ramos Figueiredo Biological and economic performance of genetic groups under different diets Bioscience Journal Brachiaria brizantha deferred grazing feed supplementation Panicum maximum rotational grazing |
| title | Biological and economic performance of genetic groups under different diets |
| title_full | Biological and economic performance of genetic groups under different diets |
| title_fullStr | Biological and economic performance of genetic groups under different diets |
| title_full_unstemmed | Biological and economic performance of genetic groups under different diets |
| title_short | Biological and economic performance of genetic groups under different diets |
| title_sort | biological and economic performance of genetic groups under different diets |
| topic | Brachiaria brizantha deferred grazing feed supplementation Panicum maximum rotational grazing |
| url | https://seer-dev.ufu.br/index.php/biosciencejournal/article/view/39808 |
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