Effect of seasonal conditions and milk management practices on bulk milk quality in Minas Gerais State - Brazil

Picinin, L.C.A.; Bordignon‐Luiz, Marilde T.; Cerqueira, M.M.O.P.; Toaldo, Isabela Maia; Souza, Fernando Nogueira de; Leite, M.O.; Fonseca, L. R. C.; Lana, Ângela Maria Quintão

doi:10.1590/1678-4162-10063

Cited by 11 publications

(6 citation statements)

References 15 publications

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“…Rainfall substantially influences chemical composition, SCC, and TBC (Picinin et al 2019;Lima et al 2019). Based on this assertion, it is possible to understand such behavior regarding fat, protein, and DDE percentages.…”

Section: Discussionmentioning

confidence: 96%

Quality of raw bulk-tank milk produced in northeast Brazil

et al. 2023

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The objective of this study was to evaluate the seasonal influence on the chemical composition, somatic cell count (SCC), and total bacterial count (TBC) of raw bulk-tank milk in northeastern Brazilian states. Data were obtained from milk samples from tanks collected monthly by industries registered with the Federal Inspection Service. According to normative instruction #62 (IN-62), two validity periods were considered. The highest recorded averages for chemical composition were between May and July. The mean fat content varied from 3.51% to 3.69%, and the protein content ranged from 3.07% to 3.17%. The averages of SCC ranged from 4.66 to 4.90 × 1,000 cells/ml, with the highest being recorded in July. At the same time, the TBC ranged from 2.34 to 2.53 cfu/ml. The highest TBC was recorded in March. The mean values of fat, protein, defatted dry extract, SCCs, and TBC were influenced by the months of the year. The means for these variables decreased in periods when Brazilian legislation was more severe. However, the SCC and TBC averages found in this study were still high, considering the quality of raw milk production. SCC and TBC presence still did not comply with the limits established by the legislation.

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Section: Discussionmentioning

confidence: 96%

Quality of raw bulk-tank milk produced in northeast Brazil

et al. 2023

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“…The significant increase in TBC in CG (33.7%) is believed to be related to the local rainy season (September to December), with rainfall of approximately 1,150 mm during this period according to the Brazilian National Institute of Meteorology (Inmet). Picinin et al (2019) observed an increase in the SCC and TBC parameters during a period with rainfalls and high temperatures (October to January), favoring an increase in environmental contamination, accumulation of mud in the facilities, and higher occurrence of dirty teats at milking time. These factors, associated with failures in the milking routine, may cause high initial contamination.…”

Section: Tablementioning

confidence: 89%

Management tools applied to milk quality in cattle farming in the Western Amazon

Linhares

Reis

Lopes

et al. 2021

Semina: Ciênc. Agrár.

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This study aimed to analyze the applicability of management tools such as SWOT matrix, GUT matrix, Brainstorming, PDCA, Ishikawa diagram, and 5W2H in improving milk quality in rural properties for family labor. The survey was conducted in 18 properties in the municipality of Senador Guiomard, State of Acre, Brazil, during the period from January to December 2019. The properties were divided into two groups (treatment group-TG and control group-CG) and the data obtained through a form with 255 questions for diagnosis and analysis (LQL-GO) for somatic cell count (SCC) and total bacterial count (TBC) were tabulated in spreadsheets (Excel®) and subjected to statistical analysis by the Wilcoxon test. Nineteen weaknesses were obtained through the GUT matrix. The implementation of milking practices using tools obtained an average reduction of 31.4% for SCC and 63% for TBC in TG and a reduction of 39.3% for SCC and an increase of 33.7% for TBC in CG. Thus, the management tools applied to milk quality are capable of generating positive results (p < 0.05) in microbiological control, facilitating quick decision-making, aiming at the correction of weaknesses, and, consequently, an increase in profitability.

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“…Regarding the CFU, it was observed that, in the rainy and dry seasons, 33.3 and 23.3%, respectively, of the farms presented values higher than 300.000 CFU/mL, which is the limit allowed for the quality bonuses payment for the production systems located in the studied region [ 24 ]. Other studies have reported higher total bacteria counts in tank milk samples during wet and rainy seasons, mainly attributed to the greater difficulty in handling animals with a high presence of sludge in the mammary gland and extremities during milking, and to the increases in the probability of making milk handling errors under these conditions [ 25 , 26 ]. Despite the observed variation in the CFU during the evaluated seasons, between 66.7 to 76.7% of the farms showed CFU values lower than 300.000 CFU/mL, which suggests that within the evaluated systems, the post-milking management does not imply a significant risk on the product sanitary quality, however, there are opportunities for improvement, so it is necessary to re-evaluate the methods of obtaining and storing the milk [ 19 ].…”

Section: Discussionmentioning

confidence: 99%

Environmental Factors That Affect the Sanitary and Nutritional Variability of Raw Milk in Dual Purpose Livestock Systems of Colombian Orinoquia

Vélez-Terranova

Gaona

Salamanca-Carreño

et al. 2023

Animals

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Milk is the natural food with the highest biological quality for the human population and its production can be affected by several sanitary factors and management conditions. With the objective of identifying influence factors on milk compositional and sanitary quality in a region with wide productive potential in the Colombian Orinoquia, an experiment was carried out in two contrasting climatic seasons. For the milk compositional analysis, samples of daily production from 30 dual-purpose systems were analyzed. Similarly, the udder sanitary status of 300 cows was studied using the California Mastitis Test (CMT). Data analysis included mixed models, Pearson correlations, frequency tables, and the Kruskal–Wallis test. The results showed that the total daily milk production of the farm and the season influenced the milk compositional quality. The farms with milk productions lower than 100 kg/day presented the highest levels of protein, lactose, solid non-fat (SNF), and density, while in the rainy season, the milk quality was higher compared to the dry season. The CMT test indicated that only 7.6% of the evaluated mammary quarters presented two or more degrees of positivity. There is an opportunity to improve the milk compositional quality by improving the nutritional offer for animals during the year. The low CMT positivity indicates that, in the calf-at-foot milking system, the presence of subclinical mastitis is not a determining variable in milk production.

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Effect of seasonal conditions and milk management practices on bulk milk quality in Minas Gerais State - Brazil

Cited by 11 publications

References 15 publications

Quality of raw bulk-tank milk produced in northeast Brazil

Quality of raw bulk-tank milk produced in northeast Brazil

Management tools applied to milk quality in cattle farming in the Western Amazon

Environmental Factors That Affect the Sanitary and Nutritional Variability of Raw Milk in Dual Purpose Livestock Systems of Colombian Orinoquia

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