Multivariate approach of inter-relationships among growth, consumption and carcass traits in Nellore cattle
The objective of the present study was to analyze the phenotypic inter-relationships between growth, feed intake and carcass traits in polled Nellore cattle, as well as to determine which bulls produced the most efficient progeny. The experiment was conducted in the feedlot of the Guaporé Pecuária (...
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| Format: | Article |
| Language: | English |
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Universidade Federal do Ceará
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| Series: | Revista Ciência Agronômica |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000100020&lng=en&tlng=en |
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| author | Cláudio Ulhôa Magnabosco Fernando Brito Lopes Eliane Sayuri Miyagi Raysildo Barbosa Lôbo Roberto Daniel Sainz |
| author_facet | Cláudio Ulhôa Magnabosco Fernando Brito Lopes Eliane Sayuri Miyagi Raysildo Barbosa Lôbo Roberto Daniel Sainz |
| author_sort | Cláudio Ulhôa Magnabosco |
| collection | DOAJ |
| description | The objective of the present study was to analyze the phenotypic inter-relationships between growth, feed intake and carcass traits in polled Nellore cattle, as well as to determine which bulls produced the most efficient progeny. The experiment was conducted in the feedlot of the Guaporé Pecuária (Livestock) Company, OB Brand. The following traits were analyzed: initial live weight (ILW); final live weight (FLW); average daily gain (ADG); dry matter intake (DMI); gain:feed (G:F); residual feed intake (RFI); rib-eye area (REA); rump fat thickness (RF); backfat thickness at the 12th-13th rib (BF); weighted fat score (WF); and intramuscular fat percentage (IMF). Both univariate and multivariate analyses were performed to analyze the inter-relationships between the studied traits. No significant phenotypic associations were observed between growth, carcass traits and residual feed intake, while the correlation between RFI and G:F was negative. Therefore, RFI may be used to select more nutritionally efficient animals without compromising growth or adult size. The selection of bulls with progeny showing low residual feed intake is recommended, as selection for low RFI tends to improve feed efficiency without compromising growth and development. |
| first_indexed | 2024-12-11T03:41:11Z |
| format | Article |
| id | doaj.art-f6bc95e9f3df4c6a87d22ba2a9562e6d |
| institution | Directory Open Access Journal |
| issn | 1806-6690 |
| language | English |
| last_indexed | 2024-12-11T03:41:11Z |
| publisher | Universidade Federal do Ceará |
| record_format | Article |
| series | Revista Ciência Agronômica |
| spelling | doaj.art-f6bc95e9f3df4c6a87d22ba2a9562e6d2022-12-22T01:22:08ZengUniversidade Federal do CearáRevista Ciência Agronômica1806-669045116817610.1590/S1806-66902014000100020S1806-66902014000100020Multivariate approach of inter-relationships among growth, consumption and carcass traits in Nellore cattleCláudio Ulhôa Magnabosco0Fernando Brito Lopes1Eliane Sayuri Miyagi2Raysildo Barbosa Lôbo3Roberto Daniel Sainz4EmbrapaEmbrapaUniversidade Federal de GoiásAssociação Nacional de Criadores e PesquisadoresEmbrapaThe objective of the present study was to analyze the phenotypic inter-relationships between growth, feed intake and carcass traits in polled Nellore cattle, as well as to determine which bulls produced the most efficient progeny. The experiment was conducted in the feedlot of the Guaporé Pecuária (Livestock) Company, OB Brand. The following traits were analyzed: initial live weight (ILW); final live weight (FLW); average daily gain (ADG); dry matter intake (DMI); gain:feed (G:F); residual feed intake (RFI); rib-eye area (REA); rump fat thickness (RF); backfat thickness at the 12th-13th rib (BF); weighted fat score (WF); and intramuscular fat percentage (IMF). Both univariate and multivariate analyses were performed to analyze the inter-relationships between the studied traits. No significant phenotypic associations were observed between growth, carcass traits and residual feed intake, while the correlation between RFI and G:F was negative. Therefore, RFI may be used to select more nutritionally efficient animals without compromising growth or adult size. The selection of bulls with progeny showing low residual feed intake is recommended, as selection for low RFI tends to improve feed efficiency without compromising growth and development.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000100020&lng=en&tlng=enClusterResidual feed intakeMultivariate statisticWeight gainZebu |
| spellingShingle | Cláudio Ulhôa Magnabosco Fernando Brito Lopes Eliane Sayuri Miyagi Raysildo Barbosa Lôbo Roberto Daniel Sainz Multivariate approach of inter-relationships among growth, consumption and carcass traits in Nellore cattle Revista Ciência Agronômica Cluster Residual feed intake Multivariate statistic Weight gain Zebu |
| title | Multivariate approach of inter-relationships among growth, consumption and carcass traits in Nellore cattle |
| title_full | Multivariate approach of inter-relationships among growth, consumption and carcass traits in Nellore cattle |
| title_fullStr | Multivariate approach of inter-relationships among growth, consumption and carcass traits in Nellore cattle |
| title_full_unstemmed | Multivariate approach of inter-relationships among growth, consumption and carcass traits in Nellore cattle |
| title_short | Multivariate approach of inter-relationships among growth, consumption and carcass traits in Nellore cattle |
| title_sort | multivariate approach of inter relationships among growth consumption and carcass traits in nellore cattle |
| topic | Cluster Residual feed intake Multivariate statistic Weight gain Zebu |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902014000100020&lng=en&tlng=en |
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