Variation in the content of defatted dry extract in cooling tanks milk samples of dairy farms
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...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Londrina
2019-02-01
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| Series: | Semina: Ciências Agrárias |
| Subjects: | |
| Online Access: | http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/32662 |
| _version_ | 1811227799592108032 |
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| author | Luis Carlos Arruda Junior Adriana Hauser Dileta Regina Moro Alessio Deise Aline Knob Marciel França Ivan Pedro de Oliveira Gomes André Thaler Neto |
| author_facet | Luis Carlos Arruda Junior Adriana Hauser Dileta Regina Moro Alessio Deise Aline Knob Marciel França Ivan Pedro de Oliveira Gomes André Thaler Neto |
| author_sort | Luis Carlos Arruda Junior |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-04-12T09:47:48Z |
| format | Article |
| id | doaj.art-a589a57d67874583a6505a40801de702 |
| institution | Directory Open Access Journal |
| issn | 1676-546X 1679-0359 |
| language | English |
| last_indexed | 2024-04-12T09:47:48Z |
| publishDate | 2019-02-01 |
| publisher | Universidade Estadual de Londrina |
| record_format | Article |
| series | Semina: Ciências Agrárias |
| spelling | doaj.art-a589a57d67874583a6505a40801de7022022-12-22T03:37:54ZengUniversidade Estadual de LondrinaSemina: Ciências Agrárias1676-546X1679-03592019-02-0140120321610.5433/1679-0359.2019v40n1p20318274Variation in the content of defatted dry extract in cooling tanks milk samples of dairy farmsLuis Carlos Arruda Junior0Adriana Hauser1Dileta Regina Moro Alessio2Deise Aline Knob3Marciel França4Ivan Pedro de Oliveira Gomes5André Thaler Neto6Universidade do Estado de Santa CatarinaUniversidade do Estado de Santa CatarinaUniversidade do Estado de Santa CatarinaUniversidade do Estado de Santa CatarinaUniversidade do Estado de Santa CatarinaUniversidade do Estado de Santa CatarinaUniversidade do Estado de Santa CatarinaThe 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.http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/32662LactoseLegislaçãoComposição do leiteProteína. |
| spellingShingle | Luis Carlos Arruda Junior Adriana Hauser Dileta Regina Moro Alessio Deise Aline Knob Marciel França Ivan Pedro de Oliveira Gomes André Thaler Neto Variation in the content of defatted dry extract in cooling tanks milk samples of dairy farms Semina: Ciências Agrárias Lactose Legislação Composição do leite Proteína. |
| title | 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_short | 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 |
| topic | Lactose Legislação Composição do leite Proteína. |
| url | http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/32662 |
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