جستجوی مقالات مرتبط با کلیدواژه "رفتار بهداشتی" در نشریات گروه "علوم دام"

Due to synthetic acaricides' adverse effects, the use of non-chemical methods, such as improving hygienic behaviors, is considered against the Varroa destructor. Therefore, this study was conducted to investigate the hygienic behaviors of Uncapping & Removing 150 honey bee colonies infected with Varroa mite from four cities of Kermanshah province from 2019 to 2020 using the liquid nitrogen method. The results showed that a significant difference was observed 48 hours after pouring liquid nitrogen between the honey bee colonies of the studied cities in terms of hygienic behaviors of Uncapping & Removing (P<0.05). The results of the comparison of means bees' hygienic behaviors 48 hours after pouring liquid nitrogen showed that the highest and lowest average hygienic behaviors were related to honey bee colonies of Sahneh city with an average of 85.48% and Sarpol-e Zahab city with an average of 58.26 %, respectively. The mean of the total hygienic behaviors of Uncapping & Removing of the studied population 48 hours after pouring liquid nitrogen was 79.9%. This high percentage of expression of hygienic behaviors indicates that the Uncapping & Removing hygienic behaviors in the honey bee population of Kermanshah province are expressed to an optimal level. In total, it can be concluded that the honey bee colonies of Kermanshah province can defend themselves against the Varroa mite by performing hygienic behaviors. Therefore, it is possible to improve the level of this behavior in the honey bee colonies of this province by implementing breeding programs.

Diseases of honeybee (Apis mellifera) are one of the major challenges for apiculture industry. Among honeybee diseases, Varroa mite is the most serious and extensive threat for this pollinator insect. In compare to other diseases, Varroa is the most costly to beekeepers. Varroa mite, in addition to weakening its host by consuming body tissues, is considered as carrier for many pathogens and viruses. In total, two main strategies are available for confronting Varroa. One of them is using chemical pesticides to remove it, and the other one is the developing resistant host to Varroa. In the past decades, several chemical pesticides have been used to control Varroa. However, this mite is rapidly evolving resistance to those chemicals. Over time, thus effectiveness and efficiency of these acaricides will be decreased. Therefore, it seems that the most important strategy to deal with Varroa is to increase host resistance. One of the key mechanisms is hygienic behavior. This behavior is carried out by workers as a protective behavior against various diseases such as bacteria and fungi and other pathogens. Now, hygienic behavior is considered as a trait at honeybee breeding programs. Another pathway to parasite resistance at honeybee is the ability of the larvae or pupae to prevent the reproduction of parasites in cells. Selected honeybees for this feature are more resistant to Varroa. Selection for resistant honeybees will be more effective when breeder uses molecular genetic techniques.