INFLUENCE OF DIFFERENT ZOO TECHNICAL INDEXES IN THE COMPOSITION AND EVOLUTION OF DAIRY CATTLE
Autor(a) principal: | |
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Data de Publicação: | 2009 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Ciência animal brasileira (Online) |
Texto Completo: | https://revistas.ufg.br/vet/article/view/1661 |
Resumo: | The aim of this work was to analyze the influence of different zoo technical indexes in the composition and evolution of dairy cattle through the years. Two hundred forty herds were simulated by combinations among the zoo technical indexes ages at the first birth (24,30 and 36 months), birthrate (100%, 90%, 80%, 70% and 60%), culling (10%, 15%, 20% and 25%) and the female death rate from 0 to 1 year old, 1 to 2, 2 to 3 (3%, 6%, 9%, 12%, 2%, 4%, 6%, 8%, 1%, 2%, 3% and 4%, respectively). For the simulations of herd evolutions, the Computational System for Measurements and Evolution of Beef Cattle software was used. It was applied in the statistical analysis Kruskal-Wallis non-parametrical statistic, through NPAR1WAY procedure. Having observed significance in Kruskal-Wallis test, MULTTEST procedure was applied to verify the difference among the averages by the contrast. It was concluded the appropriate gaining of zoo technical indexes in the raise of dairy cattle influences the composition and evolution of herds, being the birthrate the most responsible for the herd evolution, followed by age at first birth, culling and death rates.KEY WORDS: Dairy cattle, herd planning, reproductive efficiency, simulation. |
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INFLUENCE OF DIFFERENT ZOO TECHNICAL INDEXES IN THE COMPOSITION AND EVOLUTION OF DAIRY CATTLEINFLUÊNCIA DE DIFERENTES ÍNDICES ZOOTÉCNICOS NA COMPOSIÇÃO E EVOLUÇÃO DE REBANHOS BOVINOS LEITEIROSbovinocultura de leiteeficiência reprodutivaplanejamento de rebanhossimulaçãoThe aim of this work was to analyze the influence of different zoo technical indexes in the composition and evolution of dairy cattle through the years. Two hundred forty herds were simulated by combinations among the zoo technical indexes ages at the first birth (24,30 and 36 months), birthrate (100%, 90%, 80%, 70% and 60%), culling (10%, 15%, 20% and 25%) and the female death rate from 0 to 1 year old, 1 to 2, 2 to 3 (3%, 6%, 9%, 12%, 2%, 4%, 6%, 8%, 1%, 2%, 3% and 4%, respectively). For the simulations of herd evolutions, the Computational System for Measurements and Evolution of Beef Cattle software was used. It was applied in the statistical analysis Kruskal-Wallis non-parametrical statistic, through NPAR1WAY procedure. Having observed significance in Kruskal-Wallis test, MULTTEST procedure was applied to verify the difference among the averages by the contrast. It was concluded the appropriate gaining of zoo technical indexes in the raise of dairy cattle influences the composition and evolution of herds, being the birthrate the most responsible for the herd evolution, followed by age at first birth, culling and death rates.KEY WORDS: Dairy cattle, herd planning, reproductive efficiency, simulation.Este trabalho teve por objetivo analisar a influência de diferentes índices zootécnicos na composição e evolução de rebanhos leiteiros ao longo dos anos. Foram simulados 240 rebanhos através da combinação dos índices zootécnicos idade ao primeiro parto (24, 30 e 36 meses), taxa de natalidade (100%, 90%, 80%, 70% e 60%), taxa de descarte (10%, 15%, 20% e 25%) e taxa de mortalidade de fêmeas com idade de 0 a 1 ano, 1 a 2 anos, 2 a 3 anos (3%, 6%, 9%; 12%, 2%, 4%; 6%, 8%, 1%, 2%, 3% e 4%, respectivamente). Para efetuar as simulações das evoluções dos rebanhos foi utilizado o software Sistema Computacional para Dimensionamento e Evolução de Rebanhos Bovinos. Aplicou-se a estatística não paramétrica de Kruskal-Wallis, através do procedimento NPAR1WAY. Ao ser observada significância no teste Kruskal-Wallis, aplicou-se o procedimento MULTTEST, para verificar a diferença entre as médias através de contraste. Conclui-se que a obtenção de índices zootécnicos adequados na criação de bovinos de leite influencia na composição e evolução dos rebanhos, sendo a taxa de natalidade a maior responsável na evolução dos rebanhos, seguido pela idade ao primeiro parto, taxa de descarte e taxa de mortalidade.PALAVRAS-CHAVES: Bovinocultura de leite, eficiência reprodutiva, planejamento de rebanhos, simulação.Universidade Federal de Goiás2009-07-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionAvaliado por paresPesquisa Cientificaapplication/pdfhttps://revistas.ufg.br/vet/article/view/166110.5216/cab.v10i2.1661Brazilian Animal Science/ Ciência Animal Brasileira; Vol. 10 No. 2 (2009); 446-453Ciência Animal Brasileira / Brazilian Animal Science; v. 10 n. 2 (2009); 446-4531809-68911518-2797reponame:Ciência animal brasileira (Online)instname:Universidade Federal de Goiás (UFG)instacron:UFGporhttps://revistas.ufg.br/vet/article/view/1661/4833Lopes, Marcos AurélioCardoso, Milton GhediniDemeu, Fabiana Alvesinfo:eu-repo/semantics/openAccess2009-07-03T14:37:09Zoai:ojs.revistas.ufg.br:article/1661Revistahttps://revistas.ufg.br/vetPUBhttps://revistas.ufg.br/vet/oai||revistacab@gmail.com1809-68911518-2797opendoar:2024-05-21T19:54:56.996147Ciência animal brasileira (Online) - Universidade Federal de Goiás (UFG)true |
dc.title.none.fl_str_mv |
INFLUENCE OF DIFFERENT ZOO TECHNICAL INDEXES IN THE COMPOSITION AND EVOLUTION OF DAIRY CATTLE INFLUÊNCIA DE DIFERENTES ÍNDICES ZOOTÉCNICOS NA COMPOSIÇÃO E EVOLUÇÃO DE REBANHOS BOVINOS LEITEIROS |
title |
INFLUENCE OF DIFFERENT ZOO TECHNICAL INDEXES IN THE COMPOSITION AND EVOLUTION OF DAIRY CATTLE |
spellingShingle |
INFLUENCE OF DIFFERENT ZOO TECHNICAL INDEXES IN THE COMPOSITION AND EVOLUTION OF DAIRY CATTLE Lopes, Marcos Aurélio bovinocultura de leite eficiência reprodutiva planejamento de rebanhos simulação |
title_short |
INFLUENCE OF DIFFERENT ZOO TECHNICAL INDEXES IN THE COMPOSITION AND EVOLUTION OF DAIRY CATTLE |
title_full |
INFLUENCE OF DIFFERENT ZOO TECHNICAL INDEXES IN THE COMPOSITION AND EVOLUTION OF DAIRY CATTLE |
title_fullStr |
INFLUENCE OF DIFFERENT ZOO TECHNICAL INDEXES IN THE COMPOSITION AND EVOLUTION OF DAIRY CATTLE |
title_full_unstemmed |
INFLUENCE OF DIFFERENT ZOO TECHNICAL INDEXES IN THE COMPOSITION AND EVOLUTION OF DAIRY CATTLE |
title_sort |
INFLUENCE OF DIFFERENT ZOO TECHNICAL INDEXES IN THE COMPOSITION AND EVOLUTION OF DAIRY CATTLE |
author |
Lopes, Marcos Aurélio |
author_facet |
Lopes, Marcos Aurélio Cardoso, Milton Ghedini Demeu, Fabiana Alves |
author_role |
author |
author2 |
Cardoso, Milton Ghedini Demeu, Fabiana Alves |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Lopes, Marcos Aurélio Cardoso, Milton Ghedini Demeu, Fabiana Alves |
dc.subject.por.fl_str_mv |
bovinocultura de leite eficiência reprodutiva planejamento de rebanhos simulação |
topic |
bovinocultura de leite eficiência reprodutiva planejamento de rebanhos simulação |
description |
The aim of this work was to analyze the influence of different zoo technical indexes in the composition and evolution of dairy cattle through the years. Two hundred forty herds were simulated by combinations among the zoo technical indexes ages at the first birth (24,30 and 36 months), birthrate (100%, 90%, 80%, 70% and 60%), culling (10%, 15%, 20% and 25%) and the female death rate from 0 to 1 year old, 1 to 2, 2 to 3 (3%, 6%, 9%, 12%, 2%, 4%, 6%, 8%, 1%, 2%, 3% and 4%, respectively). For the simulations of herd evolutions, the Computational System for Measurements and Evolution of Beef Cattle software was used. It was applied in the statistical analysis Kruskal-Wallis non-parametrical statistic, through NPAR1WAY procedure. Having observed significance in Kruskal-Wallis test, MULTTEST procedure was applied to verify the difference among the averages by the contrast. It was concluded the appropriate gaining of zoo technical indexes in the raise of dairy cattle influences the composition and evolution of herds, being the birthrate the most responsible for the herd evolution, followed by age at first birth, culling and death rates.KEY WORDS: Dairy cattle, herd planning, reproductive efficiency, simulation. |
publishDate |
2009 |
dc.date.none.fl_str_mv |
2009-07-02 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Avaliado por pares Pesquisa Cientifica |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://revistas.ufg.br/vet/article/view/1661 10.5216/cab.v10i2.1661 |
url |
https://revistas.ufg.br/vet/article/view/1661 |
identifier_str_mv |
10.5216/cab.v10i2.1661 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://revistas.ufg.br/vet/article/view/1661/4833 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Goiás |
publisher.none.fl_str_mv |
Universidade Federal de Goiás |
dc.source.none.fl_str_mv |
Brazilian Animal Science/ Ciência Animal Brasileira; Vol. 10 No. 2 (2009); 446-453 Ciência Animal Brasileira / Brazilian Animal Science; v. 10 n. 2 (2009); 446-453 1809-6891 1518-2797 reponame:Ciência animal brasileira (Online) instname:Universidade Federal de Goiás (UFG) instacron:UFG |
instname_str |
Universidade Federal de Goiás (UFG) |
instacron_str |
UFG |
institution |
UFG |
reponame_str |
Ciência animal brasileira (Online) |
collection |
Ciência animal brasileira (Online) |
repository.name.fl_str_mv |
Ciência animal brasileira (Online) - Universidade Federal de Goiás (UFG) |
repository.mail.fl_str_mv |
||revistacab@gmail.com |
_version_ |
1799874783485100032 |