Milk quality and financial management at different scales of production on dairy farms located in the south of Minas Gerais state, Brazil

Abstract

RESUMOThe objective of this study was to analyze the relationship between aspects related to financial management and scale of production with quality traits (total bacteria count -TBC; somatic cell count -SCC) and composition (protein, fat, lactose, total solids, and non-fat solids) of refrigerated bulk tank milk from 100 dairy farmers located in the south of Minas Gerais state, Brazil, by application of a semi-structured questionnaire. Dairy farmers were categorized according to the daily milk production: small (lower than 150 L); medium (151 to 500 L); and large (higher than 501 L). Chi-square tests and identification of possible relative risks between financial aspects and current regulation standards (Normative Instruction No. 62 of December 29, 2011, Ministry of Agriculture, Livestock and Supply) associated to TBC (higher 300,000 CFU/mL) and SCC (higher than 500,000 cells/mL) means from bulk tank milk among different milk scales productions were performed. Bulk tanks milk composition met the legislation standards and had not differ between scales of production; however, SCC means within all scales, and TBC of small farmers had not attended the legislation standards and differences were identified (P < 0.05). Regarding the financial management aspects, most farmers had no control over incomes, costs, nor calculated milk production cost, with decreased incidences as scale of production increased. Chi-square tests identified that producers that had no concern about milk quality payment bonuses had TBC means 2.95 times more likely (P < 0.05) to be above the current regulations. Small dairy farmers had a greater negligence of the costs management and hygienic milk production as compared to medium and large farmers.Key words: somatic cell count; total bacterial count; management; dairy cattle. Qualidade do leite e gestão financeira em diferentes escalas de produção em propriedades leiteiras localizadas no sul de Minas Gerais, Brasil Marcel GomesObjetivou-se analisar a relação de aspectos referentes a gestão financeira e escala de produção com a qualidade (contagem de bactérias totais -CBT; contagem de células somáticas -CCS) e composição (proteína, gordura, lactose, sólidos totais e sólidos desengordurados) do leite cru refrigerado de tanques referentes a 100 propriedades leiteiras do sul de Minas Gerais, atráves da aplicação de questionários semiestruturados. Agrupou-se os produtores conforme as produções diárias de leite: pequenos (menor que 150 L); médios (151 a 500 L) e grandes (maior que 501 L). Realizou-se testes "qui-quadrados" e de riscos relativos entre as questões financeiras e as adequações à normativa vigente (Instrução normativa nº 62 de 29 de dezembro de 2011, Ministério da Agricultura, Pecuária e Abastecimento) referentes às 214 Marcel Gomes Paixão et al.

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Milk quality in small farms from Southern Region of Brazil

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“…Os derivados do leite são alimentos altamente susceptíveis à contaminação por fornecerem um ótimo meio de cultivo bacteriano e por terem uma carga proteica e lipídica alta. Sua degradação por meio de bactérias e suas toxinas se tornam incontroladas, se não forem bem manipuladas e armazenadas (Paixão et al, 2017;Rodrigues et al, 2012).…”