Growth curve of locally adapted pantaneiro cows raised under natural conditions
The objective of this study was to use morphometric and ultrasound evaluations to estimate the growth curve of the Pantaneiro cattle breed, raised in its natural habitat, aiming at the re-insertion of this breed in production systems. One hundred and three females, aging from months to 11 years, and...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Zootecnia
2013-11-01
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| Series: | Revista Brasileira de Zootecnia |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001100002&lng=en&tlng=en |
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| author | Eleonora Araújo Barbosa Andréa Alves do Egito Urbano Gomes Pinto de Abreu Raquel Soares Juliano Joseane Padilha da Silva Arthur da Silva Mariante Alexandre Floriani Ramos |
| author_facet | Eleonora Araújo Barbosa Andréa Alves do Egito Urbano Gomes Pinto de Abreu Raquel Soares Juliano Joseane Padilha da Silva Arthur da Silva Mariante Alexandre Floriani Ramos |
| author_sort | Eleonora Araújo Barbosa |
| collection | DOAJ |
| description | The objective of this study was to use morphometric and ultrasound evaluations to estimate the growth curve of the Pantaneiro cattle breed, raised in its natural habitat, aiming at the re-insertion of this breed in production systems. One hundred and three females, aging from months to 11 years, and raised on native pastures, were evaluated. The animals belonged to the Conservation Nucleus of Embrapa Pantanal, located in the Pantanal of Mato Grosso do Sul (Brazil). Weight, thoracic perimeter (TP), body length (BL), rump height (RH), height at withers (HW), hip height (HH), depth (DP), distance between the ilia (DI) (cm) and rib-eye area (REA) were measured. To relate the measurements with the age of the animals, the univariate regression model was used, assigning the variable response to gamma distribution. The Pearson correlation between variables was also estimated. The inflection point of the growth curve was 37 months for HH; between 38 and 39 months for TP and HW; between 40 and 41 months for DI, HH and DP; and 45 months for BL. The REA results could not fit in a statistical model. The majority of the variables presented a correlation above 60% among themselves, except for REA × Age, of 15.81%; REA × HW, of 34.44%; HH × Age, of 46.19; HH × DI, of 58.07%; REA × HH, of 24.57%; and REA × TP, of 39.9%. The cows showed maturity age at 40 months, which may have occurred because they were raised in natural farming conditions. In Pantaneiro cows reared in extensive systems only on natural pastures, the use of ultrasound is not effective to estimate the curve of muscular development, perhaps because this breed was not selected for weight gain. |
| first_indexed | 2024-12-19T04:31:25Z |
| format | Article |
| id | doaj.art-694bd30dba244b799f86e354334540a0 |
| institution | Directory Open Access Journal |
| issn | 1806-9290 |
| language | English |
| last_indexed | 2024-12-19T04:31:25Z |
| publishDate | 2013-11-01 |
| publisher | Sociedade Brasileira de Zootecnia |
| record_format | Article |
| series | Revista Brasileira de Zootecnia |
| spelling | doaj.art-694bd30dba244b799f86e354334540a02022-12-21T20:35:51ZengSociedade Brasileira de ZootecniaRevista Brasileira de Zootecnia1806-92902013-11-01421177477910.1590/S1516-35982013001100002S1516-35982013001100002Growth curve of locally adapted pantaneiro cows raised under natural conditionsEleonora Araújo Barbosa0Andréa Alves do Egito1Urbano Gomes Pinto de Abreu2Raquel Soares Juliano3Joseane Padilha da Silva4Arthur da Silva Mariante5Alexandre Floriani Ramos6Universidade de BrasíliaEmbrapa Gado de CorteEmbrapa PantanalEmbrapa PantanalEmbrapa Recursos Genéticos e BiotecnologiaEmbrapa Recursos Genéticos e BiotecnologiaEmbrapa Recursos Genéticos e BiotecnologiaThe objective of this study was to use morphometric and ultrasound evaluations to estimate the growth curve of the Pantaneiro cattle breed, raised in its natural habitat, aiming at the re-insertion of this breed in production systems. One hundred and three females, aging from months to 11 years, and raised on native pastures, were evaluated. The animals belonged to the Conservation Nucleus of Embrapa Pantanal, located in the Pantanal of Mato Grosso do Sul (Brazil). Weight, thoracic perimeter (TP), body length (BL), rump height (RH), height at withers (HW), hip height (HH), depth (DP), distance between the ilia (DI) (cm) and rib-eye area (REA) were measured. To relate the measurements with the age of the animals, the univariate regression model was used, assigning the variable response to gamma distribution. The Pearson correlation between variables was also estimated. The inflection point of the growth curve was 37 months for HH; between 38 and 39 months for TP and HW; between 40 and 41 months for DI, HH and DP; and 45 months for BL. The REA results could not fit in a statistical model. The majority of the variables presented a correlation above 60% among themselves, except for REA × Age, of 15.81%; REA × HW, of 34.44%; HH × Age, of 46.19; HH × DI, of 58.07%; REA × HH, of 24.57%; and REA × TP, of 39.9%. The cows showed maturity age at 40 months, which may have occurred because they were raised in natural farming conditions. In Pantaneiro cows reared in extensive systems only on natural pastures, the use of ultrasound is not effective to estimate the curve of muscular development, perhaps because this breed was not selected for weight gain.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001100002&lng=en&tlng=enanimal productionbiometriccattleconservationgenetic resourcesultrasound |
| spellingShingle | Eleonora Araújo Barbosa Andréa Alves do Egito Urbano Gomes Pinto de Abreu Raquel Soares Juliano Joseane Padilha da Silva Arthur da Silva Mariante Alexandre Floriani Ramos Growth curve of locally adapted pantaneiro cows raised under natural conditions Revista Brasileira de Zootecnia animal production biometric cattle conservation genetic resources ultrasound |
| title | Growth curve of locally adapted pantaneiro cows raised under natural conditions |
| title_full | Growth curve of locally adapted pantaneiro cows raised under natural conditions |
| title_fullStr | Growth curve of locally adapted pantaneiro cows raised under natural conditions |
| title_full_unstemmed | Growth curve of locally adapted pantaneiro cows raised under natural conditions |
| title_short | Growth curve of locally adapted pantaneiro cows raised under natural conditions |
| title_sort | growth curve of locally adapted pantaneiro cows raised under natural conditions |
| topic | animal production biometric cattle conservation genetic resources ultrasound |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013001100002&lng=en&tlng=en |
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