Reduction of phosphorus concentration in mineral supplement on fertility rate, maternal ability and costs of beef cows reared in pastures of Urochloa decumbens

Detalhes bibliográficos
Autor(a) principal: Costa, Rogério Magnoli
Data de Publicação: 2016
Outros Autores: Ponsano, Elisa Helena Giglio [UNESP], de Souza, Vinícius Carneiro [UNESP], Malafaia, Pedro
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1007/s11250-015-0967-4
http://hdl.handle.net/11449/172473
Resumo: Manufacturing and marketing of mineral mixtures with less than 40 g kg−1 phosphorus (P) is prohibited under Brazilian regulations, although scientific evidence rejects this recommendation. Considering the hypothesis that P levels in commercial mineral supplements can be reduced without affecting animal performance and health, the objective of this experiment was to evaluate the effects of reducing the concentration of P in the mineral supplement (from 40 to 18 g kg−1) of a herd of beef cows grazing tropical pastures of signal grass (Urochloa decumbens). The experiment was carried out in the savanna region of Mato Grosso do Sul, Brazil, during the years 2011 to 2013. Variables analyzed included pregnancy rate, calving interval, weight of calves at weaning, and cost of mineral supplementation. There were no changes in the reproductive parameters of the herd and the weight at weaning of the calves. However, the cost of mineral supplementation was significantly lower when the herd was supplemented with the mineral mix containing only 18 g kg−1 P. Phosphorus concentration of the forage was analyzed monthly during 1 year and averaged 1.9 ± 0.45 g kg−1 DM. Thus, it appears possible to reduce P content and cost of mineral supplementation without any adverse effects on the health and productivity of beef cattle herds in the State of Mato Grosso do Sul. However, the final decision should be made based on the clinical-nutritional examination and by constant technical assistance to the farm.
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spelling Reduction of phosphorus concentration in mineral supplement on fertility rate, maternal ability and costs of beef cows reared in pastures of Urochloa decumbensBeef cattleCost of mineral supplementationPhosphorusManufacturing and marketing of mineral mixtures with less than 40 g kg−1 phosphorus (P) is prohibited under Brazilian regulations, although scientific evidence rejects this recommendation. Considering the hypothesis that P levels in commercial mineral supplements can be reduced without affecting animal performance and health, the objective of this experiment was to evaluate the effects of reducing the concentration of P in the mineral supplement (from 40 to 18 g kg−1) of a herd of beef cows grazing tropical pastures of signal grass (Urochloa decumbens). The experiment was carried out in the savanna region of Mato Grosso do Sul, Brazil, during the years 2011 to 2013. Variables analyzed included pregnancy rate, calving interval, weight of calves at weaning, and cost of mineral supplementation. There were no changes in the reproductive parameters of the herd and the weight at weaning of the calves. However, the cost of mineral supplementation was significantly lower when the herd was supplemented with the mineral mix containing only 18 g kg−1 P. Phosphorus concentration of the forage was analyzed monthly during 1 year and averaged 1.9 ± 0.45 g kg−1 DM. Thus, it appears possible to reduce P content and cost of mineral supplementation without any adverse effects on the health and productivity of beef cattle herds in the State of Mato Grosso do Sul. However, the final decision should be made based on the clinical-nutritional examination and by constant technical assistance to the farm.Êxito Rural Consultoria em Pecuária, Av.Mário Covas 2747DAPSA FMVA UNESPDepartamento de Zootecnia UNESPDNAP IZ UFRRJDAPSA FMVA UNESPDepartamento de Zootecnia UNESPÊxito Rural Consultoria em PecuáriaUniversidade Estadual Paulista (Unesp)UFRRJCosta, Rogério MagnoliPonsano, Elisa Helena Giglio [UNESP]de Souza, Vinícius Carneiro [UNESP]Malafaia, Pedro2018-12-11T17:00:33Z2018-12-11T17:00:33Z2016-02-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article417-422application/pdfhttp://dx.doi.org/10.1007/s11250-015-0967-4Tropical Animal Health and Production, v. 48, n. 2, p. 417-422, 2016.1573-74380049-4747http://hdl.handle.net/11449/17247310.1007/s11250-015-0967-42-s2.0-849557058802-s2.0-84955705880.pdfScopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengTropical Animal Health and Production0,5110,511info:eu-repo/semantics/openAccess2024-09-04T19:15:38Zoai:repositorio.unesp.br:11449/172473Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-04T19:15:38Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Reduction of phosphorus concentration in mineral supplement on fertility rate, maternal ability and costs of beef cows reared in pastures of Urochloa decumbens
title Reduction of phosphorus concentration in mineral supplement on fertility rate, maternal ability and costs of beef cows reared in pastures of Urochloa decumbens
spellingShingle Reduction of phosphorus concentration in mineral supplement on fertility rate, maternal ability and costs of beef cows reared in pastures of Urochloa decumbens
Costa, Rogério Magnoli
Beef cattle
Cost of mineral supplementation
Phosphorus
title_short Reduction of phosphorus concentration in mineral supplement on fertility rate, maternal ability and costs of beef cows reared in pastures of Urochloa decumbens
title_full Reduction of phosphorus concentration in mineral supplement on fertility rate, maternal ability and costs of beef cows reared in pastures of Urochloa decumbens
title_fullStr Reduction of phosphorus concentration in mineral supplement on fertility rate, maternal ability and costs of beef cows reared in pastures of Urochloa decumbens
title_full_unstemmed Reduction of phosphorus concentration in mineral supplement on fertility rate, maternal ability and costs of beef cows reared in pastures of Urochloa decumbens
title_sort Reduction of phosphorus concentration in mineral supplement on fertility rate, maternal ability and costs of beef cows reared in pastures of Urochloa decumbens
author Costa, Rogério Magnoli
author_facet Costa, Rogério Magnoli
Ponsano, Elisa Helena Giglio [UNESP]
de Souza, Vinícius Carneiro [UNESP]
Malafaia, Pedro
author_role author
author2 Ponsano, Elisa Helena Giglio [UNESP]
de Souza, Vinícius Carneiro [UNESP]
Malafaia, Pedro
author2_role author
author
author
dc.contributor.none.fl_str_mv Êxito Rural Consultoria em Pecuária
Universidade Estadual Paulista (Unesp)
UFRRJ
dc.contributor.author.fl_str_mv Costa, Rogério Magnoli
Ponsano, Elisa Helena Giglio [UNESP]
de Souza, Vinícius Carneiro [UNESP]
Malafaia, Pedro
dc.subject.por.fl_str_mv Beef cattle
Cost of mineral supplementation
Phosphorus
topic Beef cattle
Cost of mineral supplementation
Phosphorus
description Manufacturing and marketing of mineral mixtures with less than 40 g kg−1 phosphorus (P) is prohibited under Brazilian regulations, although scientific evidence rejects this recommendation. Considering the hypothesis that P levels in commercial mineral supplements can be reduced without affecting animal performance and health, the objective of this experiment was to evaluate the effects of reducing the concentration of P in the mineral supplement (from 40 to 18 g kg−1) of a herd of beef cows grazing tropical pastures of signal grass (Urochloa decumbens). The experiment was carried out in the savanna region of Mato Grosso do Sul, Brazil, during the years 2011 to 2013. Variables analyzed included pregnancy rate, calving interval, weight of calves at weaning, and cost of mineral supplementation. There were no changes in the reproductive parameters of the herd and the weight at weaning of the calves. However, the cost of mineral supplementation was significantly lower when the herd was supplemented with the mineral mix containing only 18 g kg−1 P. Phosphorus concentration of the forage was analyzed monthly during 1 year and averaged 1.9 ± 0.45 g kg−1 DM. Thus, it appears possible to reduce P content and cost of mineral supplementation without any adverse effects on the health and productivity of beef cattle herds in the State of Mato Grosso do Sul. However, the final decision should be made based on the clinical-nutritional examination and by constant technical assistance to the farm.
publishDate 2016
dc.date.none.fl_str_mv 2016-02-01
2018-12-11T17:00:33Z
2018-12-11T17:00:33Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1007/s11250-015-0967-4
Tropical Animal Health and Production, v. 48, n. 2, p. 417-422, 2016.
1573-7438
0049-4747
http://hdl.handle.net/11449/172473
10.1007/s11250-015-0967-4
2-s2.0-84955705880
2-s2.0-84955705880.pdf
url http://dx.doi.org/10.1007/s11250-015-0967-4
http://hdl.handle.net/11449/172473
identifier_str_mv Tropical Animal Health and Production, v. 48, n. 2, p. 417-422, 2016.
1573-7438
0049-4747
10.1007/s11250-015-0967-4
2-s2.0-84955705880
2-s2.0-84955705880.pdf
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Tropical Animal Health and Production
0,511
0,511
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 417-422
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv repositoriounesp@unesp.br
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