Unveiling Nutrition-Related Factors in the PPMV-1 Outbreak in Khulna: A Case Study

The data collection for this study involved a comprehensive approach, including both clinical and laboratory methods. From November 16 to 26, 2019, at a pigeon farm in Doulotpur, Khulna, a total of 248 pigeons were examined, with detailed information gathered on clinical signs, laboratory tests, and post-mortem findings. A questionnaire was developed to collect farmer data, capturing details on breed, age, sex, food, and housing. Clinical signs and post-mortem lesions were defined for case identification, focusing on symptoms such as polyuria, neurological abnormalities, and specific postmortem findings. Treatment protocols were documented, involving medications like FRAC-12, Lysovit, Enrocin, Saline+C, and Lashota ND vaccine. The nutritional analysis of pigeon feed involved various laboratory techniques, including High-Performance Liquid Chromatography (HPLC) for carbohydrates and vitamins, Kjeldahl method for protein, Soxhlet extraction method for fat, and Atomic Absorption Spectroscopy (AAS) for minerals. Gut content and water samples were also analyzed, providing insights into feeding patterns and potential environmental exposures. The data collection process followed a systematic and detailed methodology, combining clinical observations with advanced laboratory analyses.本研究的数据采集采用涵盖临床检查与实验室检测的综合方案。2019年11月16日至26日，研究团队于库尔纳（Khulna）多洛特普尔（Doulotpur）的一处肉鸽养殖场内，对共计248只肉鸽开展检查，采集了其临床症状、实验室检测结果及剖检结果的详细信息。研究人员设计了调查问卷以收集养殖户相关数据，涵盖肉鸽品种、日龄、性别、饲喂方案及饲养环境等维度。本研究明确了临床症状与剖检病变的判定标准，用于病例识别，重点关注多尿、神经功能异常等症状及特征性剖检表现。研究记录了相关治疗方案，所用药物包括FRAC-12、Lysovit、Enrocin、Saline+C以及拉绍塔新城疫（ND）疫苗。针对肉鸽饲料的营养成分分析采用了多种实验室检测技术：其中碳水化合物与维生素含量通过高效液相色谱（High-Performance Liquid Chromatography, HPLC）检测，蛋白质含量采用凯氏定氮法（Kjeldahl method）测定，脂肪含量通过索氏提取法（Soxhlet extraction method）分析，矿物质含量则借助原子吸收光谱法（Atomic Absorption Spectroscopy, AAS）完成检测。研究同时对鸽肠道内容物与饮水样本开展检测，以深入解析饲喂模式与潜在环境暴露风险。本研究的数据采集流程遵循系统且严谨的方法论，将临床观测与先进实验室分析手段有机结合。