|
|
Registro Completo |
Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
Data corrente: |
01/07/2008 |
Data da última atualização: |
12/02/2009 |
Tipo da produção científica: |
Capítulo em Livro Técnico-Científico |
Autoria: |
IVO, W. M. P. de M.; ROSSETTO, R.; SANTIAGO, A. D.; BARBOSA, G. V. de S.; VASCONCELOS, J. N. de. |
Afiliação: |
Walane Maria Pereira de Mello Ivo, Embrapa Tabuleiros Costeiros; Raffaella Rossetto, Agência Paulista de Tecnologia do Agronegócio; Antônio Dias Santiago, Embrapa Tabuleiros Costeiros; Geraldo Veríssimo de Souza Barbosa, Universidade Federal de Alagoas; João Nunes de Vasconcelos, Universidade Federal de Alagoas. |
Título: |
Impulsionando a produção e a produtividade da cana-de-açúcar. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
In: ALBUQUERQUE, A. C. S.; SILVA, A. G. da (Ed.). Agricultura tropical: quatro décadas de inovações tecnológicas , institucionais e políticas. Brasília, DF: Embrapa Informação Tecnológica, 2008. v. 1, 1337 p. v. 1 - Produção e produtividade agrícola. p. 673-716. |
Páginas: |
p. 673-716. |
Idioma: |
Português |
Palavras-Chave: |
Cana-de-açúcar. |
Thesagro: |
Agronegócio. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00779naa a2200193 a 4500 001 1372450 005 2009-02-12 008 2008 bl uuuu u00u1 u #d 100 1 $aIVO, W. M. P. de M. 245 $aImpulsionando a produção e a produtividade da cana-de-açúcar. 260 $c2008 300 $ap. 673-716. 650 $aAgronegócio 653 $aCana-de-açúcar 700 1 $aROSSETTO, R. 700 1 $aSANTIAGO, A. D. 700 1 $aBARBOSA, G. V. de S. 700 1 $aVASCONCELOS, J. N. de 773 $tIn: ALBUQUERQUE, A. C. S.; SILVA, A. G. da (Ed.). Agricultura tropical: quatro décadas de inovações tecnológicas , institucionais e políticas. Brasília, DF: Embrapa Informação Tecnológica, 2008.$gv. 1, 1337 p. v. 1 - Produção e produtividade agrícola. p. 673-716.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Tabuleiros Costeiros (CPATC) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Gado de Leite. Para informações adicionais entre em contato com cnpgl.biblioteca@embrapa.br. |
Registro Completo
Biblioteca(s): |
Embrapa Gado de Leite. |
Data corrente: |
14/11/2023 |
Data da última atualização: |
14/11/2023 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Circulação/Nível: |
A - 1 |
Autoria: |
NEGRI, R.; DALTRO, D.; KLUSKA, S.; OTTO, P. I.; MACHADO, M. A.; PANETTO, J. C. do C.; MARTINS, M. F.; OLIVEIRA, H. R. de; COBUCI, J. A.; SILVA, M. V. G. B. |
Afiliação: |
RENATA NEGRI, UNIVERSIDADE ESTADUAL PAULISTA; DARLENE DALTRO, ASSOCIAÇAO BRASILEIRA DE CRIADORES DE GIROLANDO; SABRINA KLUSKA, ASSOCIAÇAO BRASILEIRA DE CRIADORES DE GIROLANDO; PAMELA ITAJARA OTTO, UNIVERSIDADE FEDERAL SANTA MARIA; MARCO ANTONIO MACHADO, CNPGL; JOAO CLAUDIO DO CARMO PANETTO, CNPGL; MARTA FONSECA MARTINS, CNPGL; HINAYAH ROJAS DE OLIVEIRA, PURDUE UNIVERSITY; JAIME ARAÚJO COBUCI, UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL; MARCOS VINICIUS GUALBERTO B SILVA, CNPGL. |
Título: |
Genomic-enhanced breeding values for heat stress tolerance in Girolando cattle in Brazil. |
Ano de publicação: |
2023 |
Fonte/Imprenta: |
Livestock Science, v. 278, 105360, 2023. |
DOI: |
https://doi.org/10.1016/j.livsci.2023.105360 |
Idioma: |
Inglês |
Conteúdo: |
Heat stress is a major challenge for dairy herds and can lead to significant production reduction, mainly in tropical climate. Differences in decreased milk production in animals is associated with genetic variation. The overall goal was to investigate the effect of heat stress in milk yield of Girolando cattle in tropical climate and to identify the most appropriate statistical approach for evaluation and selection for heat tolerance in different breed compositions of Girolando. Therefore, to quantify heat stress effects on milk yield loss in Girolando cattle, random regression models were applied on test-day milk yield records (TDMY) and weather data. In addition, different statistical models were evaluated for estimating variance components and predicting breeding values for heat stress (HS). The data comprised 648,072 TDMY of 69,431 first-lactation Girolando cows of different breed compositions, and 21,147 genotyped animals, with daily temperature and humidity measurements from weather stations closest to the tested herds, between 2000 and 2020. We used daily mean values of temperature-humidity index (THI) for the day of test and the 3 previous days as the measure of HS. Heat stress thresholds estimated for the different breed compositions of Girolando in this study were THI 80 for 1/4H, 1/2H and 5/8H; THI 78 for 3/4H animals and THI 77 for 7/8H animals. Average milk production can decrease by up to 34% due to heat stress. Estimated average heritability for TDMY regressed to the THI was 0.21, while the heritability estimated for TDMY regressed to the DIM was 0.29. A correlation of 0.55 was observed between the GEBVs of HS tolerance and GEBV milk yield. The parameters estimated in this study indicate that genomic selection for heat tolerance in dairy cattle is a step towards ensuring valuable tropical production efficiency and improving animal welfare in the face of predicted increases in heat stress events and increase tropical production efficiency. MenosHeat stress is a major challenge for dairy herds and can lead to significant production reduction, mainly in tropical climate. Differences in decreased milk production in animals is associated with genetic variation. The overall goal was to investigate the effect of heat stress in milk yield of Girolando cattle in tropical climate and to identify the most appropriate statistical approach for evaluation and selection for heat tolerance in different breed compositions of Girolando. Therefore, to quantify heat stress effects on milk yield loss in Girolando cattle, random regression models were applied on test-day milk yield records (TDMY) and weather data. In addition, different statistical models were evaluated for estimating variance components and predicting breeding values for heat stress (HS). The data comprised 648,072 TDMY of 69,431 first-lactation Girolando cows of different breed compositions, and 21,147 genotyped animals, with daily temperature and humidity measurements from weather stations closest to the tested herds, between 2000 and 2020. We used daily mean values of temperature-humidity index (THI) for the day of test and the 3 previous days as the measure of HS. Heat stress thresholds estimated for the different breed compositions of Girolando in this study were THI 80 for 1/4H, 1/2H and 5/8H; THI 78 for 3/4H animals and THI 77 for 7/8H animals. Average milk production can decrease by up to 34% due to heat stress. Estimated average heritability for TDMY regresse... Mostrar Tudo |
Palavras-Chave: |
Conforto térmico. |
Thesagro: |
Bem-Estar; Bovino; Clima Tropical; Cruzamento Animal; Gado Gir; Gado Holandês; Temperatura; Umidade. |
Thesaurus NAL: |
Animal welfare. |
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
Marc: |
LEADER 02994naa a2200361 a 4500 001 2158381 005 2023-11-14 008 2023 bl uuuu u00u1 u #d 024 7 $ahttps://doi.org/10.1016/j.livsci.2023.105360$2DOI 100 1 $aNEGRI, R. 245 $aGenomic-enhanced breeding values for heat stress tolerance in Girolando cattle in Brazil.$h[electronic resource] 260 $c2023 520 $aHeat stress is a major challenge for dairy herds and can lead to significant production reduction, mainly in tropical climate. Differences in decreased milk production in animals is associated with genetic variation. The overall goal was to investigate the effect of heat stress in milk yield of Girolando cattle in tropical climate and to identify the most appropriate statistical approach for evaluation and selection for heat tolerance in different breed compositions of Girolando. Therefore, to quantify heat stress effects on milk yield loss in Girolando cattle, random regression models were applied on test-day milk yield records (TDMY) and weather data. In addition, different statistical models were evaluated for estimating variance components and predicting breeding values for heat stress (HS). The data comprised 648,072 TDMY of 69,431 first-lactation Girolando cows of different breed compositions, and 21,147 genotyped animals, with daily temperature and humidity measurements from weather stations closest to the tested herds, between 2000 and 2020. We used daily mean values of temperature-humidity index (THI) for the day of test and the 3 previous days as the measure of HS. Heat stress thresholds estimated for the different breed compositions of Girolando in this study were THI 80 for 1/4H, 1/2H and 5/8H; THI 78 for 3/4H animals and THI 77 for 7/8H animals. Average milk production can decrease by up to 34% due to heat stress. Estimated average heritability for TDMY regressed to the THI was 0.21, while the heritability estimated for TDMY regressed to the DIM was 0.29. A correlation of 0.55 was observed between the GEBVs of HS tolerance and GEBV milk yield. The parameters estimated in this study indicate that genomic selection for heat tolerance in dairy cattle is a step towards ensuring valuable tropical production efficiency and improving animal welfare in the face of predicted increases in heat stress events and increase tropical production efficiency. 650 $aAnimal welfare 650 $aBem-Estar 650 $aBovino 650 $aClima Tropical 650 $aCruzamento Animal 650 $aGado Gir 650 $aGado Holandês 650 $aTemperatura 650 $aUmidade 653 $aConforto térmico 700 1 $aDALTRO, D. 700 1 $aKLUSKA, S. 700 1 $aOTTO, P. I. 700 1 $aMACHADO, M. A. 700 1 $aPANETTO, J. C. do C. 700 1 $aMARTINS, M. F. 700 1 $aOLIVEIRA, H. R. de 700 1 $aCOBUCI, J. A. 700 1 $aSILVA, M. V. G. B. 773 $tLivestock Science$gv. 278, 105360, 2023.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Gado de Leite (CNPGL) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Nenhum registro encontrado para a expressão de busca informada. |
|
|