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Registro Completo |
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
Data corrente: |
10/02/2020 |
Data da última atualização: |
28/04/2020 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
FERREIRA, T. A.; MARTINSA, P. G. M. A.; GOUVEIA, G. C.; ABREU, L. R. A.; GOUVEIA, A. M. G.; FACO, O.; COLOSIMO, E. A.; FURUSHO-GARCIA, I. F.; PEREIRA, I. G. |
Afiliação: |
TALITA A. FERREIRA, Federal University of Jequitinhonha and Mucuri Valleys (UFVJM) - Diamantina, MG, Brazil; Federal University of Minas Gerais (UFMG) - Belo Horizonte, MG, Brazil; PAULO G.M.A. MARTINSA, Federal University of Jequitinhonha and Mucuri Valleys (UFVJM) - Diamantina, MG, Brazil; GABRIELA C. GOUVEIA, Federal University of Minas Gerais (UFMG) - Belo Horizonte, MG, Brazil; LUÍZA R.A. ABREU, Federal University of Minas Gerais (UFMG) - Belo Horizonte, MG, Brazil; AURORA M.G. GOUVEIA, Federal University of Minas Gerais (UFMG) - Belo Horizonte, MG, Brazil; OLIVARDO FACO, CNPC; ENRICO A. COLOSIMO, Federal University of Minas Gerais (UFMG) - Belo Horizonte, MG, Brazil; IRAIDES F. FURUSHO-GARCIA, Federal University of Minas Gerais (UFMG) - Belo Horizonte, MG, Brazil; IDALMO G. PEREIRA, Federal University of Minas Gerais (UFMG) - Belo Horizonte, MG, Brazil. |
Título: |
Proportional hazard models associated with the survival of dairy goats reared in a tropical environment. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
Small Ruminant Research, v. 184, Mar. 2020. |
DOI: |
https://doi.org/10.1016/j.smallrumres.2020.106063 |
Idioma: |
Inglês |
Conteúdo: |
Abstract: Increasing the functional life of a doe in order to keep the most productive females in the herd as long as possible can result in a reduction of replacement costs because of the better utilization of the animal in the production system. Thus, the objective was to evaluate the influence of environment effect, and morphometric and type traits on the culling that limits the stay of a doe of an exotic dairy goat breed reared in a tropical climate in the herd (stayability). The data utilized in the present study had information of 1439 Saanen does, born between 2000 and 2015, from 17 herds. The stay in the herd for longer than 28 months of age (STAY28), that is lack of culling, was defined as successful; the does? records were then not censored (C?=?1). On the other hand, does kept in the herd for less than 28 months had their records censored (C?=?0), once we considered that she still would kid. Does sold to other farmers were considered censored. Information regarding birth year, birth season, herd, six morphometric traits, and 12 visual appraisal-scored traits were evaluated. The Cox proportional hazard rate and the Kaplan-Meier models were fitted to analyze the data. Birth year, body length, rump width, feet and legs soundness, udder, and teat conformation were the traits that affected STAY28. For each birth year, body length, and rump width, reductions of 4 %, 2 %, and 5 % were observed on the culling hazard of a doe, respectively. Does with great scores for traits related to the mammary system were prematurely culled from the herd. In conclusion, STAY28 can be used as a selection criterion based on the aforementioned morphological and type traits, since it is effective to early detect individuals that will stay longer and more productive in a herd. Therefore, these traits should be considered in breeding programs. MenosAbstract: Increasing the functional life of a doe in order to keep the most productive females in the herd as long as possible can result in a reduction of replacement costs because of the better utilization of the animal in the production system. Thus, the objective was to evaluate the influence of environment effect, and morphometric and type traits on the culling that limits the stay of a doe of an exotic dairy goat breed reared in a tropical climate in the herd (stayability). The data utilized in the present study had information of 1439 Saanen does, born between 2000 and 2015, from 17 herds. The stay in the herd for longer than 28 months of age (STAY28), that is lack of culling, was defined as successful; the does? records were then not censored (C?=?1). On the other hand, does kept in the herd for less than 28 months had their records censored (C?=?0), once we considered that she still would kid. Does sold to other farmers were considered censored. Information regarding birth year, birth season, herd, six morphometric traits, and 12 visual appraisal-scored traits were evaluated. The Cox proportional hazard rate and the Kaplan-Meier models were fitted to analyze the data. Birth year, body length, rump width, feet and legs soundness, udder, and teat conformation were the traits that affected STAY28. For each birth year, body length, and rump width, reductions of 4 %, 2 %, and 5 % were observed on the culling hazard of a doe, respectively. Does with great scores for trait... Mostrar Tudo |
Palavras-Chave: |
Caprino leiteiro; Conformação corporal; Conformation traits; Survival analysis. |
Thesagro: |
Cabra Leiteira; Eficiência Reprodutiva; Longevidade; Melhoramento Genético Animal; Sobrevivência. |
Thesaurus Nal: |
Brazil; Dairy goats; Longevity; Reproductive performance; Saanen; Survival rate. |
Categoria do assunto: |
G Melhoramento Genético |
Marc: |
LEADER 03074naa a2200409 a 4500 001 2120068 005 2020-04-28 008 2020 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.smallrumres.2020.106063$2DOI 100 1 $aFERREIRA, T. A. 245 $aProportional hazard models associated with the survival of dairy goats reared in a tropical environment.$h[electronic resource] 260 $c2020 520 $aAbstract: Increasing the functional life of a doe in order to keep the most productive females in the herd as long as possible can result in a reduction of replacement costs because of the better utilization of the animal in the production system. Thus, the objective was to evaluate the influence of environment effect, and morphometric and type traits on the culling that limits the stay of a doe of an exotic dairy goat breed reared in a tropical climate in the herd (stayability). The data utilized in the present study had information of 1439 Saanen does, born between 2000 and 2015, from 17 herds. The stay in the herd for longer than 28 months of age (STAY28), that is lack of culling, was defined as successful; the does? records were then not censored (C?=?1). On the other hand, does kept in the herd for less than 28 months had their records censored (C?=?0), once we considered that she still would kid. Does sold to other farmers were considered censored. Information regarding birth year, birth season, herd, six morphometric traits, and 12 visual appraisal-scored traits were evaluated. The Cox proportional hazard rate and the Kaplan-Meier models were fitted to analyze the data. Birth year, body length, rump width, feet and legs soundness, udder, and teat conformation were the traits that affected STAY28. For each birth year, body length, and rump width, reductions of 4 %, 2 %, and 5 % were observed on the culling hazard of a doe, respectively. Does with great scores for traits related to the mammary system were prematurely culled from the herd. In conclusion, STAY28 can be used as a selection criterion based on the aforementioned morphological and type traits, since it is effective to early detect individuals that will stay longer and more productive in a herd. Therefore, these traits should be considered in breeding programs. 650 $aBrazil 650 $aDairy goats 650 $aLongevity 650 $aReproductive performance 650 $aSaanen 650 $aSurvival rate 650 $aCabra Leiteira 650 $aEficiência Reprodutiva 650 $aLongevidade 650 $aMelhoramento Genético Animal 650 $aSobrevivência 653 $aCaprino leiteiro 653 $aConformação corporal 653 $aConformation traits 653 $aSurvival analysis 700 1 $aMARTINSA, P. G. M. A. 700 1 $aGOUVEIA, G. C. 700 1 $aABREU, L. R. A. 700 1 $aGOUVEIA, A. M. G. 700 1 $aFACO, O. 700 1 $aCOLOSIMO, E. A. 700 1 $aFURUSHO-GARCIA, I. F. 700 1 $aPEREIRA, I. G. 773 $tSmall Ruminant Research$gv. 184, Mar. 2020.
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Embrapa Caprinos e Ovinos (CNPC) |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
Data corrente: |
10/06/1999 |
Data da última atualização: |
18/06/2019 |
Autoria: |
PAVAN, M. A.; CHAVES, J. C. D.; SIQUEIRA, R.; ANDROCIOLI FILHO, A.; COLOZZI FILHO, A.; BALOTA, E. L. |
Afiliação: |
MARCOS ANTONIO PAVAN, IAPAR; JÚLIO CÉSAR DIAS CHAVES, IAPAR; RUBENS SIQUEIRA, IAPAR; ARMANDO ANDROCIOLI FILHO, IAPAR; ARNALDO COLOZZI FILHO, IAPAR; ELCIO LIBORIO BALOTA, IAPAR. |
Título: |
High coffee population to improve fertility of an oxisol. |
Ano de publicação: |
1999 |
Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 34, n. 3, p. 459-65, mar. 1999 |
Idioma: |
Inglês |
Notas: |
Título em português: Densidade populacional de cafeeiros para melhorar a fertilidade de um Latossolo. |
Conteúdo: |
The objective of this work was to evaluate the effect of coffee (Coffea arabica L.) population densities on the chemical and microbiological properties of an Oxisol. The work was carried out on soil samples of 0-20 cm depth originated from an experimental site which had been used for coffee tree spacing studies during 15 years, in Parana State, Brazil. Eight coffee tree populations were evaluated: 7143, 3571, 2381, 1786, 1429, 1190, 1020, and 893 trees/ha. Increasing plant population increased soil pH, exchangeable Ca, Mg, K, extractable P, organic carbon, moisture content and coffee root colonization by vesicular arbuscular mycorrhizal fungi, and decreased exchangeable A1 and microbial biomass. Such results were attributed to better erosion control, improved plant residue management and nutrient cycling, and decreased leaching losses. Increasing coffee tree population per unit of area has shown to be an important reclamation recuperation strategy for improving fertility of the acid soils in Parana, Brazil. |
Palavras-Chave: |
Acid soil; Solos acidos; Tree spacing. |
Thesagro: |
Coffea Arábica; Espaçamento. |
Categoria do assunto: |
-- |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/AI-SEDE/7613/1/PAB97016.pdf
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Marc: |
LEADER 01813naa a2200253 a 4500 001 1091402 005 2019-06-18 008 1999 bl uuuu u00u1 u #d 100 1 $aPAVAN, M. A. 245 $aHigh coffee population to improve fertility of an oxisol. 260 $c1999 500 $aTítulo em português: Densidade populacional de cafeeiros para melhorar a fertilidade de um Latossolo. 520 $aThe objective of this work was to evaluate the effect of coffee (Coffea arabica L.) population densities on the chemical and microbiological properties of an Oxisol. The work was carried out on soil samples of 0-20 cm depth originated from an experimental site which had been used for coffee tree spacing studies during 15 years, in Parana State, Brazil. Eight coffee tree populations were evaluated: 7143, 3571, 2381, 1786, 1429, 1190, 1020, and 893 trees/ha. Increasing plant population increased soil pH, exchangeable Ca, Mg, K, extractable P, organic carbon, moisture content and coffee root colonization by vesicular arbuscular mycorrhizal fungi, and decreased exchangeable A1 and microbial biomass. Such results were attributed to better erosion control, improved plant residue management and nutrient cycling, and decreased leaching losses. Increasing coffee tree population per unit of area has shown to be an important reclamation recuperation strategy for improving fertility of the acid soils in Parana, Brazil. 650 $aCoffea Arábica 650 $aEspaçamento 653 $aAcid soil 653 $aSolos acidos 653 $aTree spacing 700 1 $aCHAVES, J. C. D. 700 1 $aSIQUEIRA, R. 700 1 $aANDROCIOLI FILHO, A. 700 1 $aCOLOZZI FILHO, A. 700 1 $aBALOTA, E. L. 773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 34, n. 3, p. 459-65, mar. 1999
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