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目的 分析上海市嘉定区 2010—2021 年职业病发病特征及变化趋势, 为制定职业病防控策略提供依 据。 方法 收集“中国疾病预防控制信息系统”子系统“职业病与职业卫生信息监测系统”中报告的上海市嘉定区 2010—2021 年职业病病例信息, 分析病例人群和所在企业特征以及发病趋势。 结果 2010—2021 年上海市嘉定区 新发职业病 362 例, 发病前 3 位分别是职业性耳鼻喉口腔疾病（124 例, 占 34.25%）、职业性化学中毒（101 例, 占 27.90%）和尘肺病及其他呼吸系统疾病（62 例, 占 17.13%）；病例以男性为主, 发病年龄中位数和第 25、75 百分位数 为 43（35, 50）岁, 接害工龄 6（2, 10）年, 主要集中在小微企业、私有企业；发病前 3 位行业是金属制品业、通用设备 制造业、化学原料和化学制品制造业；职业病病例总数呈先下降后上升趋势, 2018 年后职业性耳鼻喉口腔疾病发病 数及占比均有较大幅度升高。 结论 嘉定区职业性噪声聋发病数上升明显, 应作为须重点防控的职业病, 职业性化 学中毒和尘肺病的防控亦不能放松；应重点关注小微企业、私有企业、金属制品业的职业病防治工作。 [ABSTRACT FROM AUTHOR]

Acidifier is a common additive in feed industry. It is widely used in pig breeding, especially in weaned piglets. It can induce food, promote growth and protect intestinal health. In this research, the main application and working mechanism of acidifiers in weanning piglets were reviewed, and the existing problems in the process of using acidifiers were also pointed out, in order to provide references for future research and feed preparation of weanning piglets. [ABSTRACT FROM AUTHOR]

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Copyright of Journal of Anhui Agricultural Sciences is the property of Journal of Anhui Agricultural Sciences Editorial Office and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Spodoptera frugiperda, an important migratory insect in the world, has been a serious threat to maize production in China since its invasion. Although the chemical prevention was e任icient and urgent, it was also easy to cause the drug resistance and environmental safety of Spodoptera frugiperda. In order to reduce the usage of chemical pesticides, the indoor toxicity determination of different pesticides to Spodoptera frugiperda larvae was carried out, and the field efficacy trials of the four kinds of biological pesticides on Spodoptera frugiperda on maize were studied and evaluated. The results showed that: the efficacy of the four kinds of biological pesticides, including 20 billion spores • g_1 Beauveria bassiana oil-based suspension concentrate, 30 billion spores • g_1 Beauveria bassiana wettable powder, 8 000 IU • uL_1 Bacillus thuringiensis suspension agent and 1% Sophora flavescens • azadirachtin emulsion, was 7& 29% --85.84%, 60.70% --82.81%,. 73.06% -- 81. 89% and 73. 18% --83. 19%, respectively, after 7 days of application. The four kinds of biological pesticides had no adverse effect on the maize growth, no phytotoxicity, no growth-promoting effect, and no obvious adverse effect on the beneficial organisms in maize fields. This study showed that the four kinds of biological pesticides> including 20 billion spores • g_1 Beauveria bassiana oilbased suspension concentrate, 30 billion spores • g_1 Beauveria bassiana wettable powder, 8 000 IU • uL_1 Bacillus thuringiensis suspension agent and 1% Sophora flavescens • azadirachtin emulsion, could effectively control the damage of Spodoptera frugiperda after 7 days of application, and could be widely used in the maize fields with low density population. [ABSTRACT FROM AUTHOR]

Copyright of Basic Sciences Journal of Textile Universities / Fangzhi Gaoxiao Jichu Kexue Xuebao is the property of Basic Sciences Journal of Textile Universities and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Journal of Northwest A & F University - Natural Science Edition is the property of Editorial Department of Journal of Northwest A&F University (Natural Science Edition) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Basic Sciences Journal of Textile Universities / Fangzhi Gaoxiao Jichu Kexue Xuebao is the property of Basic Sciences Journal of Textile Universities and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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Copyright of Chinese Journal of Applied Entomology is the property of Chinese Journal of Applied Entomology, Editorial Department and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

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