Sward structure and nutritive value of Alexandergrass fertilized with nitrogen
This experiment evaluated forage production, sward structure, stocking rate, weight gain per area and nutritive value of forage as grazed by beef heifers on Alexandergrass (Urochloa plantaginea (Link) Hitch) pasture fertilized with nitrogen (N): 0; 100; 200 or 300 kg of N/ha. The experiment was a co...
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| Format: | Article |
| Language: | English |
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Academia Brasileira de Ciências
2016-03-01
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| Series: | Anais da Academia Brasileira de Ciências |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100385&lng=en&tlng=en |
| _version_ | 1818215324035579904 |
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| author | Paulo R. Salvador Luciana Pötter Marta G. Rocha Anelise P. Hundertmarck Maria José O. Sichonany Luiz G. Amaral Neto Mateus Negrini Paulo H. Moterle |
| author_facet | Paulo R. Salvador Luciana Pötter Marta G. Rocha Anelise P. Hundertmarck Maria José O. Sichonany Luiz G. Amaral Neto Mateus Negrini Paulo H. Moterle |
| author_sort | Paulo R. Salvador |
| collection | DOAJ |
| description | This experiment evaluated forage production, sward structure, stocking rate, weight gain per area and nutritive value of forage as grazed by beef heifers on Alexandergrass (Urochloa plantaginea (Link) Hitch) pasture fertilized with nitrogen (N): 0; 100; 200 or 300 kg of N/ha. The experiment was a completely randomized design following a repeated measurement arrangement. The experimental animals were Angus heifers with initial age and weight of 15 months and 241.5±5 kg, respectively. The grazing method was continuous, with put-and-take stocking. N utilization, regardless of the level, increase by 25% the daily forage accumulation rate and the weight gain per area by 23%. The level of 97.2 kg N/ha leads to a higher leaf blade mass and increases by 20% the leaf:stem ratio. Alterations in sward structure changes the nutritive value of forage as grazed. The utilization of 112.7 kg of N/ha allows the highest stocking rate (2049.8 kg of BW/ha), equivalent to 7.5 heifers per hectare. |
| first_indexed | 2024-12-12T06:34:16Z |
| format | Article |
| id | doaj.art-75a808608c9f43d686ddc1064dce40fa |
| institution | Directory Open Access Journal |
| issn | 1678-2690 |
| language | English |
| last_indexed | 2024-12-12T06:34:16Z |
| publishDate | 2016-03-01 |
| publisher | Academia Brasileira de Ciências |
| record_format | Article |
| series | Anais da Academia Brasileira de Ciências |
| spelling | doaj.art-75a808608c9f43d686ddc1064dce40fa2022-12-22T00:34:30ZengAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências1678-26902016-03-0188138539510.1590/0001-3765201620150180S0001-37652016000100385Sward structure and nutritive value of Alexandergrass fertilized with nitrogenPaulo R. SalvadorLuciana PötterMarta G. RochaAnelise P. HundertmarckMaria José O. SichonanyLuiz G. Amaral NetoMateus NegriniPaulo H. MoterleThis experiment evaluated forage production, sward structure, stocking rate, weight gain per area and nutritive value of forage as grazed by beef heifers on Alexandergrass (Urochloa plantaginea (Link) Hitch) pasture fertilized with nitrogen (N): 0; 100; 200 or 300 kg of N/ha. The experiment was a completely randomized design following a repeated measurement arrangement. The experimental animals were Angus heifers with initial age and weight of 15 months and 241.5±5 kg, respectively. The grazing method was continuous, with put-and-take stocking. N utilization, regardless of the level, increase by 25% the daily forage accumulation rate and the weight gain per area by 23%. The level of 97.2 kg N/ha leads to a higher leaf blade mass and increases by 20% the leaf:stem ratio. Alterations in sward structure changes the nutritive value of forage as grazed. The utilization of 112.7 kg of N/ha allows the highest stocking rate (2049.8 kg of BW/ha), equivalent to 7.5 heifers per hectare.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100385&lng=en&tlng=enmassa de lâminas foliaresrazão folha: colmosimulação de pastejoUrochloa plantaginea (Link) Hitch |
| spellingShingle | Paulo R. Salvador Luciana Pötter Marta G. Rocha Anelise P. Hundertmarck Maria José O. Sichonany Luiz G. Amaral Neto Mateus Negrini Paulo H. Moterle Sward structure and nutritive value of Alexandergrass fertilized with nitrogen Anais da Academia Brasileira de Ciências massa de lâminas foliares razão folha: colmo simulação de pastejo Urochloa plantaginea (Link) Hitch |
| title | Sward structure and nutritive value of Alexandergrass fertilized with nitrogen |
| title_full | Sward structure and nutritive value of Alexandergrass fertilized with nitrogen |
| title_fullStr | Sward structure and nutritive value of Alexandergrass fertilized with nitrogen |
| title_full_unstemmed | Sward structure and nutritive value of Alexandergrass fertilized with nitrogen |
| title_short | Sward structure and nutritive value of Alexandergrass fertilized with nitrogen |
| title_sort | sward structure and nutritive value of alexandergrass fertilized with nitrogen |
| topic | massa de lâminas foliares razão folha: colmo simulação de pastejo Urochloa plantaginea (Link) Hitch |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652016000100385&lng=en&tlng=en |
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