Department of Plant Protection, Institute of Plant Protection, Georgikon Campus, Hungarian University of Agriculture and Life Sciences, Deák F. u. 16, H-8360 Keszthely, Hungary.
Crop Science Division, Bayer Hungária Ltd., Dombóvári u. 26, H-1117 Budapest, Hungary.
Int J Mol Sci. 2024 Oct 3;25(19):10662. doi: 10.3390/ijms251910662.
Agricultural areas can provide sources of food and hiding and nesting places for wild birds. Thus, the chemical load of potentially toxic elements (Cd, Cu, Pb) due to industrial and agricultural activities can affect not only the adult birds but also the embryos developing in the egg. The toxic effects of heavy metals applied alone were investigated on chicken embryos in the early and late stages of embryonic development using injection and immersion treatment methods. On day 3 of incubation, permanent preparations were made from the embryos to study the early development stage. There were no significant differences observed in embryo deaths and developmental abnormalities in this stage. On day 19 of incubation, the number of embryonic deaths, the body weight of the embryos, and the type of developmental abnormalities were examined. The embryonic mortality was statistically higher in the groups treated with cadmium and lead in the case of the injection treatment. A significant increase in developmental disorders was observed in the copper-treated group using the immersion application. The body weight significantly decreased in the cadmium- and lead-treated group using both treatment methods. However, a significant change in the body weight in the copper-treated group was only realized due to the injection method.
农业区可为野生鸟类提供食物来源和藏身之处及筑巢场所。因此，由于工业和农业活动导致的潜在有毒元素（镉、铜、铅）的化学负荷不仅会影响成年鸟类，还会影响在蛋中发育的胚胎。使用注射和浸泡处理方法，研究了重金属单独应用对鸡胚胎在胚胎发育的早期和晚期阶段的毒性影响。在孵育的第 3 天，从胚胎中制备了永久制剂以研究早期发育阶段。在这个阶段，没有观察到胚胎死亡和发育异常的显著差异。在孵育的第 19 天，检查了胚胎死亡数量、胚胎体重和发育异常类型。在注射处理的情况下，用镉和铅处理的组中胚胎死亡率统计学上更高。在浸泡应用的铜处理组中观察到发育障碍显著增加。用两种处理方法处理的镉和铅处理组的体重显著降低。然而，由于注射方法，仅在铜处理组中才实现了体重的显著变化。
