Evaluation of development traits of beef buffalo in Brazil using multivariate analysis
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.4081/ijas.2007.s2.321 http://hdl.handle.net/11449/226127 |
Resumo: | The buffalo population in Brazil increased about 12.9% between 1998 and 2003, to 2.8 million head, evidencing the importance of this species for the country. The objective this work was evaluation of animal growth using multivariate analysis. The data were from 2,944 water buffalo from 10 herds raised in pasture conditions in Brazil. Principal components and genetic distances were estimated using proc PRINCOMP and proc CANDISC in SAS (SAS Inst. Inc. Cary, NC, USA). Variables analyzed were birth weight (BW), age at weaning (AW), weaning weight (WT), weight adjusted to 205 d (W205), total gain between BW and WT (TG), daily gain between BW and WT (DG), weight adjusted to 365 d (W365), total gain between WT and W365 (TG3), daily gain between WT and W365 (TGD3), weight adjusted to 550 d (W550) and weight adjusted to 730 d (W730). Means and standard deviations for each variable were 39.4 ± 3.2 kg, 225.6 ± 38.8 d, 209.4 ± 39.4 kg, 195.4 ± 30.2 kg, 157.4 ± 32.0 kg, 0.77 ± 0.16 kg/d, 282.0 ± 43.5 kg, 73.9 ± 33.9 kg, 0.53 ± 0.21 kg/d, 406.8 ± 67.9 kg, and 468.2 ± 70.6 kg, respectively. The eigenvalues to four first principal components were 5.29, 2.54, 1.66, 1.01, and justify 48%, 23%, 15% and 9%, respectively, with a total cumulative 95%. We created an index using the first principal component which is Y= 0.0552 BW + 0.0438 AW + 0.3142 WT + 0.3549 W205 + 0.3426 TG + 0.3426 DG + 0.4070 W365- 0.1531 TG3 - 0.2059 TGD3 - 0.3833 W550 - 0.3966 W730. This index accounted for 48% the variation in the correlation matrix. This principal component emphasizes early growth of the animal. Estimates the pair-wise squared distances between herds, D2(i|j)= (xi-xj)' cov-1(xi-xj), using with basis the average of weight of animals, showed the largest distance between herds eight (Murrah: DF) and seven (Murrah: Amazon) and the closest distance between herds one (Mediterranean - RS) and five (Jafarabadi - SP). |
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Evaluation of development traits of beef buffalo in Brazil using multivariate analysisGainMurrahWeightThe buffalo population in Brazil increased about 12.9% between 1998 and 2003, to 2.8 million head, evidencing the importance of this species for the country. The objective this work was evaluation of animal growth using multivariate analysis. The data were from 2,944 water buffalo from 10 herds raised in pasture conditions in Brazil. Principal components and genetic distances were estimated using proc PRINCOMP and proc CANDISC in SAS (SAS Inst. Inc. Cary, NC, USA). Variables analyzed were birth weight (BW), age at weaning (AW), weaning weight (WT), weight adjusted to 205 d (W205), total gain between BW and WT (TG), daily gain between BW and WT (DG), weight adjusted to 365 d (W365), total gain between WT and W365 (TG3), daily gain between WT and W365 (TGD3), weight adjusted to 550 d (W550) and weight adjusted to 730 d (W730). Means and standard deviations for each variable were 39.4 ± 3.2 kg, 225.6 ± 38.8 d, 209.4 ± 39.4 kg, 195.4 ± 30.2 kg, 157.4 ± 32.0 kg, 0.77 ± 0.16 kg/d, 282.0 ± 43.5 kg, 73.9 ± 33.9 kg, 0.53 ± 0.21 kg/d, 406.8 ± 67.9 kg, and 468.2 ± 70.6 kg, respectively. The eigenvalues to four first principal components were 5.29, 2.54, 1.66, 1.01, and justify 48%, 23%, 15% and 9%, respectively, with a total cumulative 95%. We created an index using the first principal component which is Y= 0.0552 BW + 0.0438 AW + 0.3142 WT + 0.3549 W205 + 0.3426 TG + 0.3426 DG + 0.4070 W365- 0.1531 TG3 - 0.2059 TGD3 - 0.3833 W550 - 0.3966 W730. This index accounted for 48% the variation in the correlation matrix. This principal component emphasizes early growth of the animal. Estimates the pair-wise squared distances between herds, D2(i|j)= (xi-xj)' cov-1(xi-xj), using with basis the average of weight of animals, showed the largest distance between herds eight (Murrah: DF) and seven (Murrah: Amazon) and the closest distance between herds one (Mediterranean - RS) and five (Jafarabadi - SP).Paraná Federal University, Palotina Campus, Palotina-PRPaulista State University Animal Production Department, Botucatu-SPSalth East of Bahia University Biologic Science Department, Jequié-BAMato Grosso do Sul Federal University Bioscience Departament CEUL, Três Lagoas, MSDepartment of Statistics University of Missouri ColumbiaDivision of Animal Sciences University of Missouri - ColumbiaPaulista State University Animal Production Department, Botucatu-SPParaná Federal UniversityUniversidade Estadual Paulista (UNESP)Biologic Science DepartmentCEULUniversity of Missouri ColumbiaUniversity of Missouri - ColumbiaDeSouza, J. C.Ramos, A. A. [UNESP]Malhado, C. H.M.Jorge, A. M. [UNESP]Ferraz Filho, P. B.DeFreitas, J. A.Flournoy, N.Lamberson, W. R.2022-04-28T21:25:51Z2022-04-28T21:25:51Z2007-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article321-324http://dx.doi.org/10.4081/ijas.2007.s2.321Italian Journal of Animal Science, v. 6, n. SUPPL. 2, p. 321-324, 2007.1594-4077http://hdl.handle.net/11449/22612710.4081/ijas.2007.s2.3212-s2.0-78449312162Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengItalian Journal of Animal Scienceinfo:eu-repo/semantics/openAccess2022-04-28T21:25:51Zoai:repositorio.unesp.br:11449/226127Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T21:25:51Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Evaluation of development traits of beef buffalo in Brazil using multivariate analysis |
title |
Evaluation of development traits of beef buffalo in Brazil using multivariate analysis |
spellingShingle |
Evaluation of development traits of beef buffalo in Brazil using multivariate analysis DeSouza, J. C. Gain Murrah Weight |
title_short |
Evaluation of development traits of beef buffalo in Brazil using multivariate analysis |
title_full |
Evaluation of development traits of beef buffalo in Brazil using multivariate analysis |
title_fullStr |
Evaluation of development traits of beef buffalo in Brazil using multivariate analysis |
title_full_unstemmed |
Evaluation of development traits of beef buffalo in Brazil using multivariate analysis |
title_sort |
Evaluation of development traits of beef buffalo in Brazil using multivariate analysis |
author |
DeSouza, J. C. |
author_facet |
DeSouza, J. C. Ramos, A. A. [UNESP] Malhado, C. H.M. Jorge, A. M. [UNESP] Ferraz Filho, P. B. DeFreitas, J. A. Flournoy, N. Lamberson, W. R. |
author_role |
author |
author2 |
Ramos, A. A. [UNESP] Malhado, C. H.M. Jorge, A. M. [UNESP] Ferraz Filho, P. B. DeFreitas, J. A. Flournoy, N. Lamberson, W. R. |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Paraná Federal University Universidade Estadual Paulista (UNESP) Biologic Science Department CEUL University of Missouri Columbia University of Missouri - Columbia |
dc.contributor.author.fl_str_mv |
DeSouza, J. C. Ramos, A. A. [UNESP] Malhado, C. H.M. Jorge, A. M. [UNESP] Ferraz Filho, P. B. DeFreitas, J. A. Flournoy, N. Lamberson, W. R. |
dc.subject.por.fl_str_mv |
Gain Murrah Weight |
topic |
Gain Murrah Weight |
description |
The buffalo population in Brazil increased about 12.9% between 1998 and 2003, to 2.8 million head, evidencing the importance of this species for the country. The objective this work was evaluation of animal growth using multivariate analysis. The data were from 2,944 water buffalo from 10 herds raised in pasture conditions in Brazil. Principal components and genetic distances were estimated using proc PRINCOMP and proc CANDISC in SAS (SAS Inst. Inc. Cary, NC, USA). Variables analyzed were birth weight (BW), age at weaning (AW), weaning weight (WT), weight adjusted to 205 d (W205), total gain between BW and WT (TG), daily gain between BW and WT (DG), weight adjusted to 365 d (W365), total gain between WT and W365 (TG3), daily gain between WT and W365 (TGD3), weight adjusted to 550 d (W550) and weight adjusted to 730 d (W730). Means and standard deviations for each variable were 39.4 ± 3.2 kg, 225.6 ± 38.8 d, 209.4 ± 39.4 kg, 195.4 ± 30.2 kg, 157.4 ± 32.0 kg, 0.77 ± 0.16 kg/d, 282.0 ± 43.5 kg, 73.9 ± 33.9 kg, 0.53 ± 0.21 kg/d, 406.8 ± 67.9 kg, and 468.2 ± 70.6 kg, respectively. The eigenvalues to four first principal components were 5.29, 2.54, 1.66, 1.01, and justify 48%, 23%, 15% and 9%, respectively, with a total cumulative 95%. We created an index using the first principal component which is Y= 0.0552 BW + 0.0438 AW + 0.3142 WT + 0.3549 W205 + 0.3426 TG + 0.3426 DG + 0.4070 W365- 0.1531 TG3 - 0.2059 TGD3 - 0.3833 W550 - 0.3966 W730. This index accounted for 48% the variation in the correlation matrix. This principal component emphasizes early growth of the animal. Estimates the pair-wise squared distances between herds, D2(i|j)= (xi-xj)' cov-1(xi-xj), using with basis the average of weight of animals, showed the largest distance between herds eight (Murrah: DF) and seven (Murrah: Amazon) and the closest distance between herds one (Mediterranean - RS) and five (Jafarabadi - SP). |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007-12-01 2022-04-28T21:25:51Z 2022-04-28T21:25:51Z |
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/10.4081/ijas.2007.s2.321 Italian Journal of Animal Science, v. 6, n. SUPPL. 2, p. 321-324, 2007. 1594-4077 http://hdl.handle.net/11449/226127 10.4081/ijas.2007.s2.321 2-s2.0-78449312162 |
url |
http://dx.doi.org/10.4081/ijas.2007.s2.321 http://hdl.handle.net/11449/226127 |
identifier_str_mv |
Italian Journal of Animal Science, v. 6, n. SUPPL. 2, p. 321-324, 2007. 1594-4077 10.4081/ijas.2007.s2.321 2-s2.0-78449312162 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Italian Journal of Animal Science |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
321-324 |
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 |
|
_version_ |
1799965454683340800 |