Arai Shozo, Matsui Yoshitaka
Research Team for Production Diseases, National Institute of Animal Health, Kannondai, Tsukuba, Japan.
J Vet Med Sci. 2008 Oct;70(10):1139-42. doi: 10.1292/jvms.70.1139.
This study was performed to examine normal brainstem auditory evoked potential (BAEP) data for adult Japanese Black cattle and to evaluate whether differences exist in the peak latencies, interpeak latencies (IPL) and waveforms of BAEP between Japanese Black and Holstein cattle. The peaks were detected as major waves I, II, III and V in each group. The threshold of the BAEP waves in the Holstein cattle was 65-75 dB nHL, but the threshold in the Japanese Black cattle was 75-85 dB nHL. The I-III and I-V IPLs were significantly shorter in the Japanese Black compared with the Holstein cattle at an intensity of 105 dB nHL. The present findings suggest that the IPL and wave threshold of BAEP are influenced by bovine breed.
本研究旨在检测成年日本黑牛的正常脑干听觉诱发电位(BAEP)数据,并评估日本黑牛和荷斯坦牛之间BAEP的峰潜伏期、峰间潜伏期(IPL)和波形是否存在差异。在每组中,峰值被检测为主要波I、II、III和V。荷斯坦牛BAEP波的阈值为65 - 75 dB nHL,但日本黑牛的阈值为75 - 85 dB nHL。在105 dB nHL强度下,日本黑牛的I - III和I - V IPL明显短于荷斯坦牛。目前的研究结果表明,BAEP的IPL和波阈值受牛品种的影响。