How does the condition of the pasture in late winter influence the plant and animal responses in the subsequent seasons?
This study aimed to test the hypotheses: (i) the deferred pasture with lower height in late winter has greater herbage accumulation rate (HAR) and better structure, which facilitates the animal selective grazing during the subsequent spring and summer; (ii) the mowed of high pasture in late winter i...
| Published in: | Bioscience Journal |
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| Main Authors: | , , , , , |
| Format: | Article |
| Language: | English |
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Universidade Federal de Uberlândia
2022-03-01
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| Online Access: | https://seer.ufu.br/index.php/biosciencejournal/article/view/54042 |
| _version_ | 1856933888763363328 |
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| author | Manoel Eduardo Rozalino Santos Fernanda Rosalinski Moraes Gabriel de Oliveira Rocha Davi Moraes de Oliveira Flávia de Oliveira Scarpino van Cleef Bruno Humberto Rezende Carvalho |
| author_facet | Manoel Eduardo Rozalino Santos Fernanda Rosalinski Moraes Gabriel de Oliveira Rocha Davi Moraes de Oliveira Flávia de Oliveira Scarpino van Cleef Bruno Humberto Rezende Carvalho |
| author_sort | Manoel Eduardo Rozalino Santos |
| collection | DOAJ |
| container_title | Bioscience Journal |
| description | This study aimed to test the hypotheses: (i) the deferred pasture with lower height in late winter has greater herbage accumulation rate (HAR) and better structure, which facilitates the animal selective grazing during the subsequent spring and summer; (ii) the mowed of high pasture in late winter improves the sward structure but decreases its HAR from the spring. Four pasture condition in late winter of Urochloa brizantha cv. Marandu were evaluated: low (24.1 cm and 2,420 kg.ha-1 of DM); low/mowed (25.2 cm and 2,198 kg.ha-1 of DM, mowed at 8.0 cm); high (49.0 cm and 3,837 kg.ha-1 of DM); and high/mowed (50.0 cm and 4,211 kg.ha-1 DM, mowed at 8.0 cm). The highest live leaf blade percentage (LLBP) and the lowest dead stem percentage (DSP) occurred in the mowed pastures. The live stem (LSP) and dead leaf blade percentages of the grazing simulation sample were higher in the high pasture. This same pattern of response occurred for apparent selectivity indices (ASI) of the live leaf blade and live stem. The ASI of the dead leaf blade was greater in the high pasture, intermediate in the mowed pastures, and lower in the low pasture. The ASI of the dead stem was lower in the low pasture. The HAR was higher in low pasture. Our results support the first hypothesis. The mowing of high pasture in late winter improves the sward structure and the animal selective grazing but does not decrease the HAR during spring and summer. |
| format | Article |
| id | doaj-art-bd72c2d8fb4e4fa394fe5b76eaec67e8 |
| institution | Directory of Open Access Journals |
| issn | 1981-3163 |
| language | English |
| publishDate | 2022-03-01 |
| publisher | Universidade Federal de Uberlândia |
| record_format | Article |
| spelling | doaj-art-bd72c2d8fb4e4fa394fe5b76eaec67e82025-08-19T20:12:26ZengUniversidade Federal de UberlândiaBioscience Journal1981-31632022-03-0138e38022e3802210.14393/BJ-v38n0a2022-5404228171How does the condition of the pasture in late winter influence the plant and animal responses in the subsequent seasons?Manoel Eduardo Rozalino Santos0Fernanda Rosalinski Moraes1https://orcid.org/0000-0002-3469-064XGabriel de Oliveira Rocha2https://orcid.org/0000-0002-5557-2458Davi Moraes de Oliveira3https://orcid.org/0000-0002-4235-3248Flávia de Oliveira Scarpino van Cleef4Bruno Humberto Rezende Carvalho5Universidade Federal de UberlândiaUniversidade Federal de UberlândiaUniversidade Federal de UberlândiaUniversidade Federal de UberlândiaUniversity of FloridaUniversidade Federal de UberlândiaThis study aimed to test the hypotheses: (i) the deferred pasture with lower height in late winter has greater herbage accumulation rate (HAR) and better structure, which facilitates the animal selective grazing during the subsequent spring and summer; (ii) the mowed of high pasture in late winter improves the sward structure but decreases its HAR from the spring. Four pasture condition in late winter of Urochloa brizantha cv. Marandu were evaluated: low (24.1 cm and 2,420 kg.ha-1 of DM); low/mowed (25.2 cm and 2,198 kg.ha-1 of DM, mowed at 8.0 cm); high (49.0 cm and 3,837 kg.ha-1 of DM); and high/mowed (50.0 cm and 4,211 kg.ha-1 DM, mowed at 8.0 cm). The highest live leaf blade percentage (LLBP) and the lowest dead stem percentage (DSP) occurred in the mowed pastures. The live stem (LSP) and dead leaf blade percentages of the grazing simulation sample were higher in the high pasture. This same pattern of response occurred for apparent selectivity indices (ASI) of the live leaf blade and live stem. The ASI of the dead leaf blade was greater in the high pasture, intermediate in the mowed pastures, and lower in the low pasture. The ASI of the dead stem was lower in the low pasture. The HAR was higher in low pasture. Our results support the first hypothesis. The mowing of high pasture in late winter improves the sward structure and the animal selective grazing but does not decrease the HAR during spring and summer.https://seer.ufu.br/index.php/biosciencejournal/article/view/54042brachiaria brizantha syn. urochloa brizanthahand-plucked samplemorphological compositionurochloa brizantha. |
| spellingShingle | Manoel Eduardo Rozalino Santos Fernanda Rosalinski Moraes Gabriel de Oliveira Rocha Davi Moraes de Oliveira Flávia de Oliveira Scarpino van Cleef Bruno Humberto Rezende Carvalho How does the condition of the pasture in late winter influence the plant and animal responses in the subsequent seasons? brachiaria brizantha syn. urochloa brizantha hand-plucked sample morphological composition urochloa brizantha. |
| title | How does the condition of the pasture in late winter influence the plant and animal responses in the subsequent seasons? |
| title_full | How does the condition of the pasture in late winter influence the plant and animal responses in the subsequent seasons? |
| title_fullStr | How does the condition of the pasture in late winter influence the plant and animal responses in the subsequent seasons? |
| title_full_unstemmed | How does the condition of the pasture in late winter influence the plant and animal responses in the subsequent seasons? |
| title_short | How does the condition of the pasture in late winter influence the plant and animal responses in the subsequent seasons? |
| title_sort | how does the condition of the pasture in late winter influence the plant and animal responses in the subsequent seasons |
| topic | brachiaria brizantha syn. urochloa brizantha hand-plucked sample morphological composition urochloa brizantha. |
| url | https://seer.ufu.br/index.php/biosciencejournal/article/view/54042 |
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