Font Size: a A A

Experimental Study Of Pseudo-random Composite Rotating ELF-EMF On Rodent Controlling

Posted on:2013-06-21Degree:MasterType:Thesis
Country:ChinaCandidate:Y H LuoFull Text:PDF
GTID:2234330374489125Subject:Biomedical engineering
Abstract/Summary:PDF Full Text Request
The biological effects of Extremely low frequency electromagnetic fields (ELF-EMF) are current research priorities and hot spots in electromagnetics. The main work in this paper, aligned with the "11th Five-Year Plan" of national scientific and technological support "high-yield food science and technology projects", examined the biological toxic effects of pseudo-random composite frequency rotating electromagnetic fields on rodents in order to provide experimental data to further study the effectiveness of STD-1-24system on rodent control.Firstly,this paper studied the toxic effects of electromagnetic fields on the rodents from aspects like the nervous system,learning and memory ability and the reproductive system based on quantitative reference documents and previous experimental findings. And then taking both the study results and pollution effects into consideration, a target frequency selection0-128Hz for the experimental study was made.60adult KM rats (female:male=1:1)were randomly divided into group A with scatter radiation, group B with captive radiation, and control group C. Scatter radiation group A was raised in a large zone with only half in magnetic field, and was provided with a certain activity area. Captive radiation group B was placed in a continuous pseudo-random composite frequency rotary electromagnetic radiation environment for90days. The control group C was arranged in the no radiation zone with the same environment of group B. The organs (including the ovary、 uterus of female rat and the testis、 epididymis of male rat)were made into tissue sections on the ninety-first day. After extracting desired pictures, images processing and data analyzing were performed. Mental states, weight changes, behavioral activity and the effects on testicular seminiferous tubule cells were measured. The rats in group A ate away from the radiation area. Compared to control group C, rats in captive radiation group B not only were observed more dispirited in mental condition, less interested in mate-chasing behavior, with a reduced activity frequency and a more significant change in weight, but also were found much smaller in the averaged number and area of testicular convoluted seminiferous tubule cells. The results showed that the pseudo-random composite frequency rotary ELF-EMF was obviously effective on rodent controlling.
Keywords/Search Tags:pseudo-random, composite frequency, extremely lowfrequency, deratization, tissue section
PDF Full Text Request
Related items