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首页> 美国卫生研究院文献>Journal of Animal Science >PSXVII-2 Technology on milk quality indicators in bulk tank milk of smallholder’s dairy farmers.
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PSXVII-2 Technology on milk quality indicators in bulk tank milk of smallholder’s dairy farmers.

机译：PSXVII-2技术用于小农场主奶农散装罐装牛奶中的牛奶质量指标。

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The objective of this work was to evaluate the influence of technology transfer on milk quality indicators from bulk tank milk of smallholder’s dairy farmers in the Northeast of Sao Paulo State, Brazil. The study was carried out with 36 dairy farms assisted by extensionist. Initially, bulk tank milk sampling was performed monthly during March through June 2016 to evaluate milk quality. The producers were asked about which areas of interest to receive technical information and training. The trainings of extensionist were conducted by specialists in the five areas of greatest interest to producers. After each training, the extensionist carried out the transfer of knowledge to the producers. All trainings were conducted from June 2016 to February 2017. The second period of bulk tank milk sampling occurred from March to June 2017. All milk sampling were carried out by trained extensionist. Fat, Protein, Solids Non-Fat (SNF) and Milk Urea Nitrogen (MUN), Somatic Cell Count (SCC) and Total Bacterial Count (TBC) were analyzed in milk samplings. The SCC and TBC data were transformed to obtain the normal distribution. T-tests of paired samples were performed through the R Core Team program (2018), before and after the training. The values of fat, protein, SNF and MUN did not present significant differences before and after training, due to the great diversity of factors involved in dairy nutrition. For TBC, there was a numerical reduction from 409x10 (before) to 346x10 cfu/mL (after), but with no statistical difference (P=0.5883). SCC levels, which is related to mastitis, presented a significant reduction (P = 0.0581) from 568x10 (before) to 396x10 cells/mL, after trainings. As a conclusion of the present study, it has been shown that the technology transfer can improve milk quality, in special for SCC, due to monthly monitoring and technical visits to producers.
机译：这项工作的目的是评估技术转让对巴西圣保罗州东北部小农户奶农散装罐装牛奶中牛奶质量指标的影响。该研究是在扩展专家的协助下对36个奶牛场进行的。最初，在2016年3月至2016年6月期间每月进行散装罐装牛奶采样以评估牛奶质量。制作人被问及哪些方面需要接受技术信息和培训。推广人员的培训是由生产者最感兴趣的五个领域的专家进行的。每次培训后，推广人员都将知识转移给生产者。所有培训均于2016年6月至2017年2月进行。第二批散装罐装牛奶采样于2017年3月至2017年6月进行。所有牛奶采样均由受过培训的推广员进行。在牛奶样本中分析了脂肪，蛋白质，非脂肪固体（SNF）和尿素氮（MUN），体细胞计数（SCC）和总细菌计数（TBC）。转换SCC和TBC数据以获得正态分布。在训练之前和之后，通过R核心团队计划（2018）对配对样本进行T检验。脂肪，蛋白质，SNF和MUN的值在训练前后没有显着差异，这是因为乳制品营养中涉及的因素差异很大。对于TBC，数值从409x10（之前）降低到346x10cfu / mL（之后），但无统计学差异（P = 0.5883）。训练后，与乳腺炎相关的SCC水平从568x10（之前）显着降低（P = 0.0581）至396x10细胞/ mL。作为本研究的结论，已经表明，由于每月进行监测和对生产者进行技术访问，技术转让可以改善牛奶质量，特别是对于SCC。

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