Mineral requirements for growth of wool and hair lambs
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/S1516-35982013000500007 http://hdl.handle.net/11449/30880 |
Resumo: | The present study was conducted to determine the body composition and the mineral requirements for growth of wool and hair lambs. A total of 34 castrated lambs with an initial body weight (BW) of 19.9±0.8 kg were used; 17 of these lambs were of the genotype Ideal × Ile de France and 17 were Santa Inês. Ten lambs (5 of each genotype) were slaughtered at the beginning of the experiment to establish their initial body composition. The remaining lambs were assigned to one of three diets (40% roughage and 60% concentrate, 60% roughage and 40% concentrate, or 80% roughage and 20% concentrate) in a 2 × 3 factorial arrangement of treatments. All of the diets were provided ad libitum. When the group under 40% roughage and 60% concentrate reached 35 kg BW, all of the animals were slaughtered. Linear regressions were used to determine the relationship between the shrunk BW and the empty body weight (EBW) for each genotype. These equations were compared and revealed differences between the genotypes. The allometric equations were calculated using the relationship between the amount of minerals and the EBW. The equations of a given mineral for each genotype were compared to verify if they were statistically different. The equations for calcium, phosphorus, magnesium and sodium differed between genotypes. The same equations were used to estimate the major body mineral composition per kilogram of EBW. The net requirement for gain of the fleece-free Ideal × Ile de France lambs ranged from 7.77 to 6.80 g Ca, 4.54 to 4.14 g P, 0.30 to 0.27 g Mg, 1.18 to 1.07 g K and 0.84 to 0.76 g Na per kg BW gain, and the requirements of the Santa Inês animals ranged from 9.57 to 8.37 g Ca, 5.39 to 4.91 g P, 0.36 to 0.33 g Mg, 1.18 to 1.07 g K and 0.90 to 0.81 g Na per kg BW gain for the lambs weighting 20 to 35 kg. Santa Inês lambs showed higher requirements for Ca, P, Mg and Na. |
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Mineral requirements for growth of wool and hair lambsBody compositionmajor mineralnet requirementsSheepThe present study was conducted to determine the body composition and the mineral requirements for growth of wool and hair lambs. A total of 34 castrated lambs with an initial body weight (BW) of 19.9±0.8 kg were used; 17 of these lambs were of the genotype Ideal × Ile de France and 17 were Santa Inês. Ten lambs (5 of each genotype) were slaughtered at the beginning of the experiment to establish their initial body composition. The remaining lambs were assigned to one of three diets (40% roughage and 60% concentrate, 60% roughage and 40% concentrate, or 80% roughage and 20% concentrate) in a 2 × 3 factorial arrangement of treatments. All of the diets were provided ad libitum. When the group under 40% roughage and 60% concentrate reached 35 kg BW, all of the animals were slaughtered. Linear regressions were used to determine the relationship between the shrunk BW and the empty body weight (EBW) for each genotype. These equations were compared and revealed differences between the genotypes. The allometric equations were calculated using the relationship between the amount of minerals and the EBW. The equations of a given mineral for each genotype were compared to verify if they were statistically different. The equations for calcium, phosphorus, magnesium and sodium differed between genotypes. The same equations were used to estimate the major body mineral composition per kilogram of EBW. The net requirement for gain of the fleece-free Ideal × Ile de France lambs ranged from 7.77 to 6.80 g Ca, 4.54 to 4.14 g P, 0.30 to 0.27 g Mg, 1.18 to 1.07 g K and 0.84 to 0.76 g Na per kg BW gain, and the requirements of the Santa Inês animals ranged from 9.57 to 8.37 g Ca, 5.39 to 4.91 g P, 0.36 to 0.33 g Mg, 1.18 to 1.07 g K and 0.90 to 0.81 g Na per kg BW gain for the lambs weighting 20 to 35 kg. Santa Inês lambs showed higher requirements for Ca, P, Mg and Na.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Universidade Estadual Paulista Department of Animal SciencesUniversidade Federal de Campina Grande (UFCG) CSTRUniversidade Estadual Paulista Department of Animal SciencesFAPESP: 98/06746-2Sociedade Brasileira de ZootecniaUniversidade Estadual Paulista (Unesp)Universidade Federal de Campina Grande (UFCG)Teixeira, Izabelle Auxiliadora Molina de Almeida [UNESP]Resende, Kleber Tomás de [UNESP]Silva, Aderbal Marcos de AzevêdoSilva Sobrinho, Américo Garcia da [UNESP]Härter, Carla Joice [UNESP]Sader, Ana Paula de Oliveira [UNESP]2014-05-20T15:18:25Z2014-05-20T15:18:25Z2013-05-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article347-353application/pdfhttp://dx.doi.org/10.1590/S1516-35982013000500007Revista Brasileira de Zootecnia. Sociedade Brasileira de Zootecnia, v. 42, n. 5, p. 347-353, 2013.1516-3598http://hdl.handle.net/11449/3088010.1590/S1516-35982013000500007S1516-35982013000500007WOS:000320026500007S1516-35982013000500007.pdfSciELOreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengRevista Brasileira de Zootecnia0,337info:eu-repo/semantics/openAccess2024-06-07T18:44:29Zoai:repositorio.unesp.br:11449/30880Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-06-07T18:44:29Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Mineral requirements for growth of wool and hair lambs |
title |
Mineral requirements for growth of wool and hair lambs |
spellingShingle |
Mineral requirements for growth of wool and hair lambs Teixeira, Izabelle Auxiliadora Molina de Almeida [UNESP] Body composition major mineral net requirements Sheep |
title_short |
Mineral requirements for growth of wool and hair lambs |
title_full |
Mineral requirements for growth of wool and hair lambs |
title_fullStr |
Mineral requirements for growth of wool and hair lambs |
title_full_unstemmed |
Mineral requirements for growth of wool and hair lambs |
title_sort |
Mineral requirements for growth of wool and hair lambs |
author |
Teixeira, Izabelle Auxiliadora Molina de Almeida [UNESP] |
author_facet |
Teixeira, Izabelle Auxiliadora Molina de Almeida [UNESP] Resende, Kleber Tomás de [UNESP] Silva, Aderbal Marcos de Azevêdo Silva Sobrinho, Américo Garcia da [UNESP] Härter, Carla Joice [UNESP] Sader, Ana Paula de Oliveira [UNESP] |
author_role |
author |
author2 |
Resende, Kleber Tomás de [UNESP] Silva, Aderbal Marcos de Azevêdo Silva Sobrinho, Américo Garcia da [UNESP] Härter, Carla Joice [UNESP] Sader, Ana Paula de Oliveira [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Universidade Federal de Campina Grande (UFCG) |
dc.contributor.author.fl_str_mv |
Teixeira, Izabelle Auxiliadora Molina de Almeida [UNESP] Resende, Kleber Tomás de [UNESP] Silva, Aderbal Marcos de Azevêdo Silva Sobrinho, Américo Garcia da [UNESP] Härter, Carla Joice [UNESP] Sader, Ana Paula de Oliveira [UNESP] |
dc.subject.por.fl_str_mv |
Body composition major mineral net requirements Sheep |
topic |
Body composition major mineral net requirements Sheep |
description |
The present study was conducted to determine the body composition and the mineral requirements for growth of wool and hair lambs. A total of 34 castrated lambs with an initial body weight (BW) of 19.9±0.8 kg were used; 17 of these lambs were of the genotype Ideal × Ile de France and 17 were Santa Inês. Ten lambs (5 of each genotype) were slaughtered at the beginning of the experiment to establish their initial body composition. The remaining lambs were assigned to one of three diets (40% roughage and 60% concentrate, 60% roughage and 40% concentrate, or 80% roughage and 20% concentrate) in a 2 × 3 factorial arrangement of treatments. All of the diets were provided ad libitum. When the group under 40% roughage and 60% concentrate reached 35 kg BW, all of the animals were slaughtered. Linear regressions were used to determine the relationship between the shrunk BW and the empty body weight (EBW) for each genotype. These equations were compared and revealed differences between the genotypes. The allometric equations were calculated using the relationship between the amount of minerals and the EBW. The equations of a given mineral for each genotype were compared to verify if they were statistically different. The equations for calcium, phosphorus, magnesium and sodium differed between genotypes. The same equations were used to estimate the major body mineral composition per kilogram of EBW. The net requirement for gain of the fleece-free Ideal × Ile de France lambs ranged from 7.77 to 6.80 g Ca, 4.54 to 4.14 g P, 0.30 to 0.27 g Mg, 1.18 to 1.07 g K and 0.84 to 0.76 g Na per kg BW gain, and the requirements of the Santa Inês animals ranged from 9.57 to 8.37 g Ca, 5.39 to 4.91 g P, 0.36 to 0.33 g Mg, 1.18 to 1.07 g K and 0.90 to 0.81 g Na per kg BW gain for the lambs weighting 20 to 35 kg. Santa Inês lambs showed higher requirements for Ca, P, Mg and Na. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-05-01 2014-05-20T15:18:25Z 2014-05-20T15:18:25Z |
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/10.1590/S1516-35982013000500007 Revista Brasileira de Zootecnia. Sociedade Brasileira de Zootecnia, v. 42, n. 5, p. 347-353, 2013. 1516-3598 http://hdl.handle.net/11449/30880 10.1590/S1516-35982013000500007 S1516-35982013000500007 WOS:000320026500007 S1516-35982013000500007.pdf |
url |
http://dx.doi.org/10.1590/S1516-35982013000500007 http://hdl.handle.net/11449/30880 |
identifier_str_mv |
Revista Brasileira de Zootecnia. Sociedade Brasileira de Zootecnia, v. 42, n. 5, p. 347-353, 2013. 1516-3598 10.1590/S1516-35982013000500007 S1516-35982013000500007 WOS:000320026500007 S1516-35982013000500007.pdf |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Revista Brasileira de Zootecnia 0,337 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
347-353 application/pdf |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Zootecnia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Zootecnia |
dc.source.none.fl_str_mv |
SciELO 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 |
|
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1803045536586006528 |