Short duration grazing with sheep on a thinned caattinga in the sertão of Ceará
Autor(a) principal: | |
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Data de Publicação: | 1999 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Pesquisa Agropecuária Brasileira (Online) |
Texto Completo: | https://seer.sct.embrapa.br/index.php/pab/article/view/5144 |
Resumo: | The experiment was carried out in Sobral, Ceará, Brazil, from January 1992 to July 1994, with the objective of determining the productive performance of lambs, forage production, and frequency of the species of the herbaceous layer of a thinned caatinga, under organic fertilization and short duration grazing, with two stocking rates. The stocking rates were 3.3 (light) and 10.0 heads/ha (heavy), with (5.0 ton/ha of goat manure) and without fertilization. A complete randomized design was followed, with a factorial distribution of 2 x 2 x 3 (stocking rate x fertilization x year), with two repetitions. Sheep grazing resulted in total disapearing of the grass species and an increasing of the forbs, along the period of study. The organic fertilization did not show significant effects (P > 0.05) on the animal and pasture performances. The best animal performance (P < 0.01) was observed on the padocks under light stocking rate (3.3 head/ha), with 108.0 g/head/day, and the best performance (P < 0.01) of the pasture was obtained on the areas under heavy stocking rate (10 head/ha), with 71.2 kg/ha/year. Although, the short duration grazing with sheep presented high performance by the animals and by the pasture, it should not be recommended for the thinned caatinga, because it unbalances the herbaceous layer composition, the principal source of the diet of those ruminants. Possibly, the alternate grazing with other herbivorous of different grazing habit and diet composition may result on a beter sustainability of the exploration. |
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Short duration grazing with sheep on a thinned caattinga in the sertão of CearáPastoreio de curta duração com ovinos em caatinga raleada no sertão cearensefertilization; semi-arid; stocking rate; weight gainadubação; carga animal; ganho de peso; semi-áridoThe experiment was carried out in Sobral, Ceará, Brazil, from January 1992 to July 1994, with the objective of determining the productive performance of lambs, forage production, and frequency of the species of the herbaceous layer of a thinned caatinga, under organic fertilization and short duration grazing, with two stocking rates. The stocking rates were 3.3 (light) and 10.0 heads/ha (heavy), with (5.0 ton/ha of goat manure) and without fertilization. A complete randomized design was followed, with a factorial distribution of 2 x 2 x 3 (stocking rate x fertilization x year), with two repetitions. Sheep grazing resulted in total disapearing of the grass species and an increasing of the forbs, along the period of study. The organic fertilization did not show significant effects (P > 0.05) on the animal and pasture performances. The best animal performance (P < 0.01) was observed on the padocks under light stocking rate (3.3 head/ha), with 108.0 g/head/day, and the best performance (P < 0.01) of the pasture was obtained on the areas under heavy stocking rate (10 head/ha), with 71.2 kg/ha/year. Although, the short duration grazing with sheep presented high performance by the animals and by the pasture, it should not be recommended for the thinned caatinga, because it unbalances the herbaceous layer composition, the principal source of the diet of those ruminants. Possibly, the alternate grazing with other herbivorous of different grazing habit and diet composition may result on a beter sustainability of the exploration. A pesquisa foi conduzida em Sobral, Ceará, no período de janeiro de 1992 a julho de 1994 e objetivou determinar o desempenho produtivo de ovinos, produção de forragem e características fitossociológicas do estrato herbáceo da caatinga raleada submetida à adubação orgânica e pastoreio de curta duração, com duas taxas de lotação. Foram testadas as cargas de 3,3 (leve) e 10 cab/ha (pesada), com (5 t/ha de esterco de caprinos) e sem adubação orgânica. Utilizou-se um delineamento inteiramente casualizado distribuído em um fatorial 2 x 2 x 3 (carga animal x adubação x ano), com duas repetições. O pastejo de ovinos resultou no desaparecimento total das gramíneas e no aumento das dicotiledôneas herbáceas no período estudado. A adubação orgânica não mostrou efeitos significantes (P > 0,05) quanto à performance animal e das pastagens. O melhor desempenho animal (P < 0,01) foi obtido nas parcelas com carga leve (3,3 cab/ha), com 108,0 g/cab/dia e o da pastagem foi observado nas áreas com carga pesada (10 cab/ha) com 71,2 kg/ha/ano. Apesar da elevada produção animal, o pastejo de curta duração, somente com ovinos, não deve ser recomendado para a caatinga raleada, por desestabilizar a composição do estrato herbáceo, principal componente da dieta desses ruminantes. Provavelmente, a alternância com outro herbívoro de hábito de pastejo e preferência alimentar diferente resultará em uma melhor sustentabilidade da exploração.Pesquisa Agropecuaria BrasileiraPesquisa Agropecuária BrasileiraSilva, Nilzemary Lima daFilho, João Ambrósio de AraújoSousa, Francisco Beni deAraújo, Marcelo Renato Alves de1999-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.sct.embrapa.br/index.php/pab/article/view/5144Pesquisa Agropecuaria Brasileira; v.34, n.1, jan. 1999; 135-140Pesquisa Agropecuária Brasileira; v.34, n.1, jan. 1999; 135-1401678-39210100-104xreponame:Pesquisa Agropecuária Brasileira (Online)instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa)instacron:EMBRAPAporhttps://seer.sct.embrapa.br/index.php/pab/article/view/5144/2336info:eu-repo/semantics/openAccess2010-07-16T13:31:45Zoai:ojs.seer.sct.embrapa.br:article/5144Revistahttp://seer.sct.embrapa.br/index.php/pabPRIhttps://old.scielo.br/oai/scielo-oai.phppab@sct.embrapa.br || sct.pab@embrapa.br1678-39210100-204Xopendoar:2010-07-16T13:31:45Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa)false |
dc.title.none.fl_str_mv |
Short duration grazing with sheep on a thinned caattinga in the sertão of Ceará Pastoreio de curta duração com ovinos em caatinga raleada no sertão cearense |
title |
Short duration grazing with sheep on a thinned caattinga in the sertão of Ceará |
spellingShingle |
Short duration grazing with sheep on a thinned caattinga in the sertão of Ceará Silva, Nilzemary Lima da fertilization; semi-arid; stocking rate; weight gain adubação; carga animal; ganho de peso; semi-árido |
title_short |
Short duration grazing with sheep on a thinned caattinga in the sertão of Ceará |
title_full |
Short duration grazing with sheep on a thinned caattinga in the sertão of Ceará |
title_fullStr |
Short duration grazing with sheep on a thinned caattinga in the sertão of Ceará |
title_full_unstemmed |
Short duration grazing with sheep on a thinned caattinga in the sertão of Ceará |
title_sort |
Short duration grazing with sheep on a thinned caattinga in the sertão of Ceará |
author |
Silva, Nilzemary Lima da |
author_facet |
Silva, Nilzemary Lima da Filho, João Ambrósio de Araújo Sousa, Francisco Beni de Araújo, Marcelo Renato Alves de |
author_role |
author |
author2 |
Filho, João Ambrósio de Araújo Sousa, Francisco Beni de Araújo, Marcelo Renato Alves de |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
|
dc.contributor.author.fl_str_mv |
Silva, Nilzemary Lima da Filho, João Ambrósio de Araújo Sousa, Francisco Beni de Araújo, Marcelo Renato Alves de |
dc.subject.por.fl_str_mv |
fertilization; semi-arid; stocking rate; weight gain adubação; carga animal; ganho de peso; semi-árido |
topic |
fertilization; semi-arid; stocking rate; weight gain adubação; carga animal; ganho de peso; semi-árido |
description |
The experiment was carried out in Sobral, Ceará, Brazil, from January 1992 to July 1994, with the objective of determining the productive performance of lambs, forage production, and frequency of the species of the herbaceous layer of a thinned caatinga, under organic fertilization and short duration grazing, with two stocking rates. The stocking rates were 3.3 (light) and 10.0 heads/ha (heavy), with (5.0 ton/ha of goat manure) and without fertilization. A complete randomized design was followed, with a factorial distribution of 2 x 2 x 3 (stocking rate x fertilization x year), with two repetitions. Sheep grazing resulted in total disapearing of the grass species and an increasing of the forbs, along the period of study. The organic fertilization did not show significant effects (P > 0.05) on the animal and pasture performances. The best animal performance (P < 0.01) was observed on the padocks under light stocking rate (3.3 head/ha), with 108.0 g/head/day, and the best performance (P < 0.01) of the pasture was obtained on the areas under heavy stocking rate (10 head/ha), with 71.2 kg/ha/year. Although, the short duration grazing with sheep presented high performance by the animals and by the pasture, it should not be recommended for the thinned caatinga, because it unbalances the herbaceous layer composition, the principal source of the diet of those ruminants. Possibly, the alternate grazing with other herbivorous of different grazing habit and diet composition may result on a beter sustainability of the exploration. |
publishDate |
1999 |
dc.date.none.fl_str_mv |
1999-01-01 |
dc.type.none.fl_str_mv |
|
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/5144 |
url |
https://seer.sct.embrapa.br/index.php/pab/article/view/5144 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://seer.sct.embrapa.br/index.php/pab/article/view/5144/2336 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
publisher.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira Pesquisa Agropecuária Brasileira |
dc.source.none.fl_str_mv |
Pesquisa Agropecuaria Brasileira; v.34, n.1, jan. 1999; 135-140 Pesquisa Agropecuária Brasileira; v.34, n.1, jan. 1999; 135-140 1678-3921 0100-104x reponame:Pesquisa Agropecuária Brasileira (Online) instname:Empresa Brasileira de Pesquisa Agropecuária (Embrapa) instacron:EMBRAPA |
instname_str |
Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
instacron_str |
EMBRAPA |
institution |
EMBRAPA |
reponame_str |
Pesquisa Agropecuária Brasileira (Online) |
collection |
Pesquisa Agropecuária Brasileira (Online) |
repository.name.fl_str_mv |
Pesquisa Agropecuária Brasileira (Online) - Empresa Brasileira de Pesquisa Agropecuária (Embrapa) |
repository.mail.fl_str_mv |
pab@sct.embrapa.br || sct.pab@embrapa.br |
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1793416702428446720 |