Fatores ambientais e de manejo sobre a composição química do leite em granjas leiteiras do Estado do Paraná, Brasil

Fagan, Eder Paulo; Jobim, Clóves Cabreira; Calixto, Moysés; Silva, Michele Simili da; Santos, Geraldo Tadeu dos

doi:10.4025/actascianimsci.v32i3.8570

Cited by 19 publications

(21 citation statements)

References 13 publications

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“…These results are similar to those found by Borges et al (2009) in Western Santa Catarina. Fagan et al (2010) analyzed milk production throughout the seasons of the year, also found a significant difference (P<0.05) in milk protein content. In this study, the average protein content during summer, winter, and spring was 3.04%, while in the fall it was 2.87%.…”

Section: Resultsmentioning

confidence: 86%

Season influence on milk physico-chemical and microbiological aspects in Western Santa Catarina

et al. 2014

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The objective of this study was to analyze the influence of seasonal changes on milk quality in Western Santa Catarina, Brazil. Dairy farms (799) had raw milk samples (9144) collected and analyzed for fat, protein, SCC (somatic cell count) and TBC (total bacterial count). Samples were collected from cooling tanks on the farm during the months of October 2009 to September 2010 and grouped into four seasons (summer, autumn, winter, and spring). The data were classified according to the normative instructions 51 and 62 the Ministry of Agriculture, Livestock and Food Supply, and also according to a quality pay system adopted by the dairy industry in the region of the study. The results revealed differences between groups (P<0.05), where fat content was higher in autumn, protein and TBC were higher in winter and SCC showed the highest rates in the summer. According to the criteria established by legislation, the main quality problem was the TBC, with higher counts in the winter, and in the summer we observed the highest percentage of non-compliant samples. For the quality payment system, chemical composition resulted on better prices to be paid to producers, while TBC was primarily responsible lower price. Key words: Milk quality, payment based on quality, seasonality ResumoO objetivo do trabalho foi analisar as variações sazonais da qualidade do leite no oeste de Santa Catarina de acordo com as estações do ano. Utilizaram-se dados de 799 produtores de leite de uma cooperativa do Oeste Catarinense, considerando os teores de gordura, proteína, CCS (contagem de células somáticas) e CBT (contagem bacteriana total) de 9144 amostras de leite cru, coletadas diretamente dos tanques de resfriamento do produtor, durante os meses de outubro de 2009 a setembro de 2010. Os dados foram agrupados em quatro estações do ano (verão, outono, inverno e primavera). Para as quatro estações do ano, os dados também foram classificados segundo as instruções normativas IN 51 e IN 62 do Ministério da Agricultura, Pecuária e Abastecimento, como também de acordo com um sistema de remuneração ao produtor adotado por laticínios na região do estudo. Os resultados revelaram diferença entre os grupos (P<0.05), sendo que o teor de gordura foi maior no outono, a proteína e CBT foram maiores no inverno e CCS apresentou os maiores índices no verão. Conforme os critérios estabelecidos pela legislação, o principal problema observado foi associado a CBT, sendo que no inverno foram observadas as maiores contagens e, no verão, a maior porcentagem de amostras fora do padrão preconizado pela legislação. Com base na remuneração por qualidade, a composição centesimal resultou para a maioria dos produtores em bonificação no preço do leite pago ao produtor, e a CBT foi a principal responsável pela diminuição do preço final. Palavras-chave: Qualidade do leite, remuneração por qualidade, sazonalidade

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Section: Resultsmentioning

confidence: 86%

Season influence on milk physico-chemical and microbiological aspects in Western Santa Catarina

et al. 2014

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“…Results suggest contamination is a consequence of animal feeding planning in the DPSs. Fagan et al (2010) found differences between DPSs (from 0,180 to 0,628 ppb), although their approach did not involve sampling, rather, a case study. In this study, it is possible to understand individual variations that were not noticed between dairy farmer groups, demonstrated by a coefficient of variation higher than 60%.…”

Section: Resultsmentioning

confidence: 99%

“…Food contamination is a current and thoroughly discussed issue, involving aspects such as public health (CALDAS; SOUZA, 2000) and animal production (FAGAN et al, 2010). Milk and dairy products have been given special attention, due to the increase in the demand of these products associated with the mounting concern for food safety (FAO, 2008).…”

Section: Introductionmentioning

confidence: 99%

Seasonal milk contamination by aflatoxin m1, organophosphates and carbamates in Paraná – Brazil

Ramos

Damasceno

Kazama

et al. 2016

SCA

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Aiming to evaluate the milk contamination in the dairy production systems (DPS) for mycotoxins and chemical residues of organophosphates and carbamates it was made a study encompassing 96 DPS in three regions of Parana state. There were collected samples of milk, water and food and they were evaluated for chemical residues in all samples and aflatoxin only for food and milk. Mycotoxins in food (aflatoxin B1, B2, G1, G2, zearalenone and ochratoxin) were detected by the method of thin layer chromatography -TLC and for the determination of aflatoxin M1 was used an immunoassay kit competitive ELISA Ridascreen®. The residues of organophosphates and carbamates were performed by colorimetric method qualitatively. There were evaluated the differences between regions, periods and the sources of mycotoxin contamination. Carbamates and organophosphates were screened for their presence in milk and the sources of food and water. Then it was estimated the contributions of each mycotoxin for milk contamination, as well as their respective contaminated food. Differences were found between periods (p < 0,05) for milk contamination with aflatoxin M1 -AFM1. For carbamates and organophosphates were found different contamination sources (p < 0,01). For the carbamates the source were pesticides used to parasitic herd control and for the organophosphates pesticides used in agriculture. For food sources contamination resulting in the AFM1 contamination it was detected that aflatoxin B1 -AFB1 was the main source. The aflatoxin G1 -AFG1 showed a strong correlation (p < 0,01) with AFB1 levels suggesting causal relationship is a function of fungal strains producing both at the same time. It was also found the prevalence of aflatoxin contamination in 70% of contaminated samples and its predominant presence in relation to other mycotoxins in all kinds of foods analyzed. By identifying the checkpoints of contamination can be proposed the inclusion of practical management methods to avoid this. ResumoObjetivando avaliar a contaminação por micotoxinas e resíduos de organofosforados e carbamatos em Sistemas de Produção Leiteira (SPL) foi realizado um estudo em 96 SPL em três regiões do Paraná. Foram colhidas amostras de leite, água e alimentos para a avaliação dos resíduos dos pesticidas, mas para aflatoxinas apenas foram avaliados o leite e os alimentos. As micotoxinas nos alimentos (aflatoxinas B1, B2, G1, G2, Zearalenona e Ocratoxina) foram detectadas por meio da cromatografia de camada delgada. Para a determinação da aflatoxina M1(AFM1) foi utilizado kit de imunoafinidade competitiva (ELISA) Ridascreen ® . Os resíduos de organofosforados e carbamatos foram determinados por método colorimétrico qualitativo. Foram avaliadas as diferenças entre as regiões, períodos do ano e fontes de contaminação por micotoxina. A presença de carbamatos e organofosforados foi rastreada no leite, alimentos e água. A contribuição de cada micotoxina para a contaminação do leite foi estimada, bem como a fonte alimentar mais provável. Foram encontradas dife...

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“…As alterações nos constituintes do leite podem ter influencia de vários aspectos como manejo (Vallin et al, 2009); características genéticas (Deitos, Maggioni & Romero, 2010), etiologia (Oliveira et al, 2013), fase e ordem de lactação (Rossi et al, 2012), fatores ambientais (Fagan et al, 2010), raça e número de lactações (Reis et al, 2012). No presente estudo, a heterogeneidade do rebanho relacionados aos aspectos citados pode ter influencia a um desvio padrão alto e consequentemente, interferindo nos resultados.…”

Section: Cmt Gordura (%) Proteína (%) Lactose (%) Sólidos Totais (%) unclassified

Influence of somatic cells levels on milk componentes in southwest Paraná, Brazil

Ferreira

Mello

Oliveira

et al. 2015

AVB

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RESUMO -Este estudo tem como objetivo verificar a características físico-químicas do leite da região sudoeste do Paraná. Para tanto, 293 propriedades foram classificadas segundo o número de animais. Posteriormente foi efetuado o sorteio simples de cada classe, perfazendo uma média de nove animais e diferentes características quanto à raça, tipo de ordenha e estagio de lactação. Foi realizado o CMT e colheitas de amostras (de julho a outubro de 2010) para CCS em frascos contendo conservante bromopol e enviados ao Laboratório do Programa de Análise de Rebanhos Leiteiros da Associação Paranaense de Criadores de Bovinos da Raça Holandesa (APCBRH) em equipamento de citometria de fluxo. As frequências de todos os constituintes foram submetidas ao teste de Tukey. Os resultados demonstraram que animais com CMT positivo me pelo menos um dos quartos mamários médias e desvio padrão de gordura (%), proteína (%), lactose (%), sólidos totais (%) e CCS (CCS x 1000/mL) de 2,41 ± 1,22, 3,302 ± 0,46, 4,44 ± 0,45, 10,99 ± 1,32 e 443,80 ± 688,90, respectivamente. Destacando que as frequências de gordura e sólidos totais estão fora dos parâmetros estabelecidos pela IN 62. Pode-se verificar que as vacas em lactação região sudoeste do estado do Paraná apresentam índices de taxas de gordura e sólidos totais abaixo do estabelecido pela IN 62, necessitando de medidas sanitárias para reduzir o índice de mastite o que pode estar interferindo diretamente na qualidade do leite produzido.Palavras-Chave: gordura; lactose; mastite; proteína; sólidos totais.ABSTRACT -This study aims to determine the physical and chemical characteristics of milk from southwestern Paraná region. To this end, 293 properties were classified according to the number of animals, was later made simple drawing of each class, making an average of nine animals and different characteristics regarding race, milking type and stage of lactation. CMT and sampling (July-October 2010) to CCS in vials containing preservative Bromopol and sent to the Laboratory of Analysis Program dairy herd of Paraná Association of Cattle Breeders of Holstein (APCBRH) was performed on equipment flow cytometry. The frequencies of all constituents were subjected to Tukey's test. The results demonstrated that animals with CMT plus me at least one of mammary glands and average standard deviation of fat (%) Protein (%) Lactose (%) total solids (%) and CCS (CCS x 1000 / ml) 2.41 ± 1.22, 3.302 ± 0.46, 4.44 ± 0.45, 10.99 ± 1.32 and 443.80 ± 688.90, respectively. Noting that the frequencies of fat and solids are outside the parameters of IN 62 (referrals). One can check that lactating cows southwest region of the state of Paraná present rate indices of fat and total solids below established by IN 62, requiring health measures to reduce the incidence of mastitis which may be interfering directly in the quality of milk produced.

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Fatores ambientais e de manejo sobre a composição química do leite em granjas leiteiras do Estado do Paraná, Brasil

Abstract: NRC-National Research Council. Nutrient requirements of dairy cattle. 7 th ed. Washington, D.

Cited by 19 publications

References 13 publications

Season influence on milk physico-chemical and microbiological aspects in Western Santa Catarina

Season influence on milk physico-chemical and microbiological aspects in Western Santa Catarina

Seasonal milk contamination by aflatoxin m1, organophosphates and carbamates in Paraná – Brazil

Influence of somatic cells levels on milk componentes in southwest Paraná, Brazil

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