Variation in the content of defatted dry extract in cooling tanks milk samples of dairy farms
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Semina. Ciências Agrárias (Online) |
Texto Completo: | https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/32662 |
Resumo: | The defatted dry extract (DDE) comprises of the solid constituents of the milk, except for the fat, and must have a minimum established content of 8.4% for raw milk in Brazil. The objective was to evaluate the effects of commercialized milk volume, somatic cell count (SCC) and total bacterial count (TBC) on the DDE content of dairy farm milk samples. The sampling included data from monthly milk analyzes of dairy farms, which supply four dairy industries located in the state of Santa Catarina, Paraná and Rio Grande do Sul, and comprised of 106.470 observations sampled in 2015.The data were submitted to variance and regression analysis. To evaluate the influence of the volume of milk commercialized by the farmers, the SCC and TBC levels, and the levels of DDE, the values of these explanatory variables were stratified in quintiles. The mean DDE was 8.55%, with 25.6% of the samples being below the established minimum. In regard to the volume of milk marketed by the farmers, seasonal variations were observed in all quintiles of dairy farms analyzed, but with lower levels of DDE in milk samples from small farms throughout the year. Samples of milk with high TBC and, especially high SCC, presented lower percentage of DDE during the year. It is concluded that the DDE content of milk is related to the season of the year, the production volume per dairy, SCC and TBC. |
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Semina. Ciências Agrárias (Online) |
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Variation in the content of defatted dry extract in cooling tanks milk samples of dairy farmsVariávéis relacionadas ao teor de extrato seco desengordurado em amostras de leite de tanques de resfriamento de estabelecimentos ruraisLactoseLegislationMilk compositionProtein.LactoseLegislaçãoComposição do leiteProteína.The defatted dry extract (DDE) comprises of the solid constituents of the milk, except for the fat, and must have a minimum established content of 8.4% for raw milk in Brazil. The objective was to evaluate the effects of commercialized milk volume, somatic cell count (SCC) and total bacterial count (TBC) on the DDE content of dairy farm milk samples. The sampling included data from monthly milk analyzes of dairy farms, which supply four dairy industries located in the state of Santa Catarina, Paraná and Rio Grande do Sul, and comprised of 106.470 observations sampled in 2015.The data were submitted to variance and regression analysis. To evaluate the influence of the volume of milk commercialized by the farmers, the SCC and TBC levels, and the levels of DDE, the values of these explanatory variables were stratified in quintiles. The mean DDE was 8.55%, with 25.6% of the samples being below the established minimum. In regard to the volume of milk marketed by the farmers, seasonal variations were observed in all quintiles of dairy farms analyzed, but with lower levels of DDE in milk samples from small farms throughout the year. Samples of milk with high TBC and, especially high SCC, presented lower percentage of DDE during the year. It is concluded that the DDE content of milk is related to the season of the year, the production volume per dairy, SCC and TBC.O extrato seco desengordurado (ESD) compreende os constituintes sólidos do leite, excetuando-se a gordura, devendo apresentar teor mínimo estabelecido de 8,4% para leite cru no Brasil. Objetivou-se avaliar efeitos do volume de leite comercializado, contagem de células somáticas (CCS) e contagem bacteriana total (CBT) sobre o teor de ESD em amostras de leite de estabelecimentos rurais. A amostragem contemplou dados de análises mensais de leite de estabelecimentos rurais, fornecedores para quatro laticínios localizados nos estados de Santa Catarina, Paraná e Rio Grande do Sul, sendo composta por 106.470 observações amostradas em 2015. Os dados foram submetidos à análise de variância e de regressão. Para avaliar a influência do volume de leite comercializado pelos produtores, nível de CCS e nível da CBT, sobre os teores de ESD, os valores destas variáveis explanatórias foram estratificados em quintis. A média do ESD foi de 8,55%, sendo que 25,6% das amostras estavam abaixo do mínimo estabelecido. Quanto ao volume de leite comercializado pelos produtores, observou-se variação sazonal em todos os quintis de estabelecimentos rurais analisados, porém com teores mais baixos de ESD em amostras de leite de pequenos produtores ao longo de todo o ano. Amostras de leite com elevada CBT e, especialmente alta CCS, apresentaram menores percentuais de ESD durante o ano. Conclui-se que o teor de ESD do leite está relacionado com a época do ano, o volume de produção por propriedade leiteira, com a CCS e com a CBT.UEL2019-02-15info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArtigo cientifico, pesquisa de campo, entrevista controlada, análises laboratoriais, análises estatísticas.application/pdfhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/3266210.5433/1679-0359.2019v40n1p203Semina: Ciências Agrárias; Vol. 40 No. 1 (2019); 203-216Semina: Ciências Agrárias; v. 40 n. 1 (2019); 203-2161679-03591676-546Xreponame:Semina. Ciências Agrárias (Online)instname:Universidade Estadual de Londrina (UEL)instacron:UELenghttps://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/32662/24996Copyright (c) 2019 Semina: Ciências Agráriashttp://creativecommons.org/licenses/by-nc/4.0info:eu-repo/semantics/openAccessArruda Junior, Luis CarlosHauser, AdrianaAlessio, Dileta Regina MoroKnob, Deise AlineFrança, MarcielGomes, Ivan Pedro de OliveiraThaler Neto, André2022-10-19T15:14:55Zoai:ojs.pkp.sfu.ca:article/32662Revistahttp://www.uel.br/revistas/uel/index.php/semagrariasPUBhttps://ojs.uel.br/revistas/uel/index.php/semagrarias/oaisemina.agrarias@uel.br1679-03591676-546Xopendoar:2022-10-19T15:14:55Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL)false |
dc.title.none.fl_str_mv |
Variation in the content of defatted dry extract in cooling tanks milk samples of dairy farms Variávéis relacionadas ao teor de extrato seco desengordurado em amostras de leite de tanques de resfriamento de estabelecimentos rurais |
title |
Variation in the content of defatted dry extract in cooling tanks milk samples of dairy farms |
spellingShingle |
Variation in the content of defatted dry extract in cooling tanks milk samples of dairy farms Arruda Junior, Luis Carlos Lactose Legislation Milk composition Protein. Lactose Legislação Composição do leite Proteína. |
title_short |
Variation in the content of defatted dry extract in cooling tanks milk samples of dairy farms |
title_full |
Variation in the content of defatted dry extract in cooling tanks milk samples of dairy farms |
title_fullStr |
Variation in the content of defatted dry extract in cooling tanks milk samples of dairy farms |
title_full_unstemmed |
Variation in the content of defatted dry extract in cooling tanks milk samples of dairy farms |
title_sort |
Variation in the content of defatted dry extract in cooling tanks milk samples of dairy farms |
author |
Arruda Junior, Luis Carlos |
author_facet |
Arruda Junior, Luis Carlos Hauser, Adriana Alessio, Dileta Regina Moro Knob, Deise Aline França, Marciel Gomes, Ivan Pedro de Oliveira Thaler Neto, André |
author_role |
author |
author2 |
Hauser, Adriana Alessio, Dileta Regina Moro Knob, Deise Aline França, Marciel Gomes, Ivan Pedro de Oliveira Thaler Neto, André |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Arruda Junior, Luis Carlos Hauser, Adriana Alessio, Dileta Regina Moro Knob, Deise Aline França, Marciel Gomes, Ivan Pedro de Oliveira Thaler Neto, André |
dc.subject.por.fl_str_mv |
Lactose Legislation Milk composition Protein. Lactose Legislação Composição do leite Proteína. |
topic |
Lactose Legislation Milk composition Protein. Lactose Legislação Composição do leite Proteína. |
description |
The defatted dry extract (DDE) comprises of the solid constituents of the milk, except for the fat, and must have a minimum established content of 8.4% for raw milk in Brazil. The objective was to evaluate the effects of commercialized milk volume, somatic cell count (SCC) and total bacterial count (TBC) on the DDE content of dairy farm milk samples. The sampling included data from monthly milk analyzes of dairy farms, which supply four dairy industries located in the state of Santa Catarina, Paraná and Rio Grande do Sul, and comprised of 106.470 observations sampled in 2015.The data were submitted to variance and regression analysis. To evaluate the influence of the volume of milk commercialized by the farmers, the SCC and TBC levels, and the levels of DDE, the values of these explanatory variables were stratified in quintiles. The mean DDE was 8.55%, with 25.6% of the samples being below the established minimum. In regard to the volume of milk marketed by the farmers, seasonal variations were observed in all quintiles of dairy farms analyzed, but with lower levels of DDE in milk samples from small farms throughout the year. Samples of milk with high TBC and, especially high SCC, presented lower percentage of DDE during the year. It is concluded that the DDE content of milk is related to the season of the year, the production volume per dairy, SCC and TBC. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-02-15 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Artigo cientifico, pesquisa de campo, entrevista controlada, análises laboratoriais, análises estatísticas. |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/32662 10.5433/1679-0359.2019v40n1p203 |
url |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/32662 |
identifier_str_mv |
10.5433/1679-0359.2019v40n1p203 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://ojs.uel.br/revistas/uel/index.php/semagrarias/article/view/32662/24996 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2019 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2019 Semina: Ciências Agrárias http://creativecommons.org/licenses/by-nc/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
UEL |
publisher.none.fl_str_mv |
UEL |
dc.source.none.fl_str_mv |
Semina: Ciências Agrárias; Vol. 40 No. 1 (2019); 203-216 Semina: Ciências Agrárias; v. 40 n. 1 (2019); 203-216 1679-0359 1676-546X reponame:Semina. Ciências Agrárias (Online) instname:Universidade Estadual de Londrina (UEL) instacron:UEL |
instname_str |
Universidade Estadual de Londrina (UEL) |
instacron_str |
UEL |
institution |
UEL |
reponame_str |
Semina. Ciências Agrárias (Online) |
collection |
Semina. Ciências Agrárias (Online) |
repository.name.fl_str_mv |
Semina. Ciências Agrárias (Online) - Universidade Estadual de Londrina (UEL) |
repository.mail.fl_str_mv |
semina.agrarias@uel.br |
_version_ |
1799306079295766528 |