Kesiakova S, Enchev G, Karadzhov S
Vet Med Nauki. 1985;22(6):86-93.
Continuous eighth-month deratization was carried out on an industrial swine breeding complex, having great numbers of the black rat (R. rattus). Anticoagulants were chiefly used, maintaining permanent sites of poisonous baits. The lowering of rat numbers was followed up at two-month intervals in the individual productional sectors. Some indices were determined, such as intensiveness, extensiveness, and effectiveness. It was found that each of these indices characterized particular aspects of the deratization process on the complex as a whole and in the various sectors. A suggestion is made to use all indices in combination in assessing the effect of deratization on such complexes, particularly when due attention is to be paid to the epizootic importance of deratization. With regard to the economic effect it has been established that even with uninterrupted process of deratization for a long period of time on the entire area of a swine breeding complex this measure is economically expedient. Great amounts of valuable feed are economized owing to the lower number of rodents.
在一个有大量黑家鼠（褐家鼠）的工业养猪综合场进行了连续八个月的灭鼠工作。主要使用抗凝血剂，并保持毒饵投放点的永久性。在各个生产部门每隔两个月对鼠类数量的减少情况进行跟踪。确定了一些指标，如强度、广度和效果。结果发现，这些指标中的每一个都表征了整个综合场以及各个部门灭鼠过程的特定方面。建议在评估灭鼠对这类综合场的效果时综合使用所有指标，特别是在要充分重视灭鼠的 epizootic 重要性时。关于经济效果，已经确定，即使在养猪综合场的整个区域长时间不间断地进行灭鼠工作，这项措施在经济上也是有利的。由于啮齿动物数量减少，节省了大量宝贵的饲料。 （注：原文中“epizootic”可能是“动物流行病学的”意思，但结合语境不太确定其准确含义，所以直接保留了英文未翻译）
