Qualidade do leite cru refrigerado sob inspeção federal na região Nordeste

Neto, A.C. Ribeiro; Barbosa, Severino Benone Paes; Jatobá, Raquel Bezerra; Silva, A.M.; Silva, C.X.; Silva, M.J.A.; Santoro, Kléber Régis

doi:10.1590/s0102-09352012000500035

Cited by 14 publications

(13 citation statements)

References 10 publications

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“…Total bacterial count (TBC) in milk also showed a high average in relation to that regulated by NR 62/2011 (BRASIL, 2011), however, it is below the value referenced by Ribeiro Neto et al (2012) for milk in the Northeast Region. Considering that the bacterial contamination of milk varies with the health of the mammary gland (ZADOKS et al, 2004), cleaning of the udder, teats, utensils, equipment surfaces and also with the storage conditions, this reiterates the importance of cleaning and sanitizing of all the parts that make up production logistics to improve the quality of raw milk (RANGEL et al, 2014).…”

Section: Resultsmentioning

confidence: 93%

“…This regulation seeks to standardize acceptable levels for hygienic composition and quality of milk in Brazil and is being gradually implemented throughout all regions of the country, according to their peculiarities. Other studies developed such as Sgarbieri (2005), Oliveira et al (2011), andRibeiro Neto et al (2012) have shown that compliance with the requirement levels for milk composition is achievable, despite variations in the analyzed production systems. N = number of observations; SD = standard deviation; CV = coefficient of variation; DDE = defatted dry extract; MUN = milk urea nitrogen; PCAS = casein from total protein; SCC = Somatic cell count; TBC = total bacterial count.…”

Section: Resultsmentioning

confidence: 94%

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Quality indicators of tank milk in different production systems of tropical regions

Campos

Rangel

Borba

et al. 2016

SCA

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Research was conducted in eight commercial herds located in the state of Rio Grande do Norte, Brazil. Properties were classified according to the production system, the seasons were divided into four and the genetic groups into six. Milk samples from morning milking were collected monthly, directly from a cooling tank. Protein, fat, lactose, total solids, casein, urea nitrogen concentrations/levels, somatic cell count (SCC) and total bacterial count (TBC) were determined. For milk composition, the detected results were satisfactory and met the requirements of Normative Ruling 62, but the averages for SCC and TBC were above the recommended limit. All variables, with the exception of casein from total protein were influenced (P <0.05) by the production system used in the production unit. A lower fat content was recorded in 2010 compared to 2011. For the seasons, all the constituents of milk had lower values in drier season (seasons 3 and 4), with the exception of casein; SCC and TBC had higher values in periods 1 and 2, which are considered rainy periods. There was variation in the chemical composition of milk according to the genotypes. Milk chemical composition met the legal and market requirements, with a positive emphasis on specialized production systems. The variations over the year and according to the genetic group of the herd are also significant and should be taken into account in the search for improvements. As for the hygiene and health aspects of milk, the results portray the need for a greater focus by the entities involved in the sector, as well as the producers, on the viability of an adequacy program and monitoring of management practices related to this criterion. Campos, P. P. L. da E. et al.do tanque de resfriamento, amostras de leite na ordenha da manhã. Foram determinados os teores de proteína, gordura, lactose, sólidos totais, caseína, as concentrações de nitrogênio ureico, a contagem de células somáticas (CCS) e a contagem bacteriana total (CBT). Para a composição do leite, os resultados detectados foram satisfatórios e atenderam às exigências previstas na Instrução Normativa 62, mas as médias obtidas para CCS e CBT estão acima do limite recomendado. Todas as variáveis analisadas, com exceção da caseína da proteína total, foram influenciadas (P<0,05) pelo sistema de produção utilizado na unidade produtiva. Verificou-se menor teor de gordura em 2010, quando comparado a 2011. Para as estações do ano, com exceção da caseína, todos os constituintes do leite apresentaram menores valores na época mais seca (estações 3 e 4), já a CCS e CBT apresentaram maiores valores nas épocas 1 e 2, que são considerados períodos de chuva. Verificou-se variação na composição química do leite de acordo com os genótipos estudados. A composição química do leite atende às exigências legais e de mercado, com destaque positivo para os sistemas de produção especializados. As variações ao longo do ano e de acordo com o grupo genético do rebanho são também significantes, devendo ser levadas em consideração na bus...

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Section: Resultsmentioning

confidence: 93%

Section: Resultsmentioning

confidence: 94%

Quality indicators of tank milk in different production systems of tropical regions

Campos

Rangel

Borba

et al. 2016

SCA

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“…Mastitic milk presents a series of changes in its physical and chemical composition. This change can influence throughput processing, cause losses and increase industrial production costs (BARBANO et al, 2006;LANGONI et al, 2011;SHARMA et al, 2011;RIBEIRO NETO et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Electrical conductivity and somatic cell count in zebu cow’s milk

Moura

Rangel

Borba

et al. 2017

SCA

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The objective was to evaluate the physico-chemical composition, somatic cell count and electrical conductivity of the milk from lactating Zebu cows. For this, monthly milk samples were collected on the official milk control day intended for analysis of electrical conductivity of milk (ECM), somatic cell count (SCC) and milk composition. We used monthly data from 680 controls, from 10 Gyr and 17 Guzerat cows from a herd located in the city of São Gonçalo do Amarante/RN, from August to November 2013. Analyses of variance, mean test and Pearson correlation analysis were conducted. The levels of fat (% F), protein (% P), lactose (% L), total solids (% TS) and non-fat dry extract (% NFDE) were dependent variables for the ECM and SCC. The milk of Gyr cows for ECM, SCC, GOR, PROT, LACT, TS and NFDE were respectively, 3.88±1.18 mS/cm, 1629±2195 thousands cells/mL, 4.71±1.77%, 3.29±0.31%, 4.5±0.33%, 13.5±1.78%, 8.79±0.37%, and for the Guzerat breed 3.59±0.88 mS/cm 1356±1793 thousands cells/mL, 4.47±0.98%, 3.43±0.32%, 4.52±0.24%, 13.5±1.19%, 9.02±0.48%. No significant correlations between SCC and ECM characteristics were observed. However, when the correlation of each of these parameters and milk composition in different classes for each breed was analyzed, a significant correlation of the SCC was observed with the protein and lactose in Gyr, of the ECM with the lactose and SCC with total solids and fat for the Guzerat cows.

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“…Deve-se destacar a importância do correto funcionamento e dimensionamento do sistema de produção frio, a IN 62 de 2011 determina que o leite cru deve ser resfriado em temperatura igual ou inferior a 4°C no tempo máximo de três horas após a ordenha (BRASIL, 2011;NICKERSON, 1998). Altas contagens bacterianas indicam falhas na limpeza dos equipamentos, na higiene da ordenha ou problemas na refrigeração do leite, resultados de CBT inferiores a 20.000 UFC/mL refletem boas práticas de higiene (RIBEIRO NETO et al, 2012). Devido a este fator, investir em qualidade tornou-se um papel fundamental para as indústrias, em vários Países como Austrá-lia, União Européia, Nova Zelândia e até mesmo o Brasil, desenvolve-se pesquisas e programas constantes para reduzir o limite máximo de CCS e CBT, uma vez que o aumento do mesmo acarreta aparecimentos de defeitos nos produtos processados com essa matéria-prima (GIGANTE, 2004).…”

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Monitoramento Dos Agentes Causadores De Mastite E a Susceptibilidade Aos Antimicrobianos

et al. 2017

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O estudo teve por objetivo avaliar a prevalência de mastite subclínica e a sensibilidade dos agentes isolados frente aos antimicrobianos. Foram acompanhadas vinte UPL da Região Sul do RS de maio de 2010 a maio de 2015. Foram coletadas amostras de leite dos quartos mamários com mastite subclíni-ca. As amostras foram identificadas e as colônias caracterís-ticas foram submetidas ao teste de disco-difusão. Do total de 2350 amostras coletadas, 44% dos isolados foram identificados como Staphylococcus coagulase negativa, 26% Staphylococcus coagulase positiva, 10% como Streptococcus spp.. Os Staphylococcus coagulase positiva apresentaram maior resistência a cefalexina, gentamicina, neomicina, tetraciclina e trimetoprima. Os Staphylococcus coagulase negativa, mostraram-se mais resistentes a gentamicina, neomicina, tetraciclina, trimetoprima e penicilina G. Os resultados obtidos mostram que é necessário realizar um controle de mastites mais eficiente nas propriedades, assim como salientar o uso consciente de antimicrobianos nos tratamentos terapêuticos.

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Qualidade do leite cru refrigerado sob inspeção federal na região Nordeste

Cited by 14 publications

References 10 publications

Quality indicators of tank milk in different production systems of tropical regions

Quality indicators of tank milk in different production systems of tropical regions

Electrical conductivity and somatic cell count in zebu cow’s milk

Monitoramento Dos Agentes Causadores De Mastite E a Susceptibilidade Aos Antimicrobianos

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