کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9436637 | 1615695 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Breed-dependent susceptibility to acute sound exposure in young chickens
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کلمات کلیدی
PLSDPBSIACUCNIHLSPLAvian - Avian یا آوین یا پرندگانnoise-induced hearing loss - افت شنوایی ناشی از سر و صداanalysis of variance - تحلیل واریانسANOVA - تحلیل واریانس Analysis of varianceprotected least significant difference - حفاظت شده حداقل تفاوت قابل توجهیCochlea - حلزون گوشInstitutional Animal Care and Use Committee - سازمان مراقبت و مراقبت از حیواناتSound pressure level - سطح فشار صوتAuditory - شنواییPhosphate-buffered saline - محلول نمک فسفات با خاصیت بافریSEM - مدل معادلات ساختاری / میکروسکوپ الکترونی روبشیScanning electron microscopy - میکروسکوپ الکترونی روبشیbasilar papilla - پاپیلار اساسی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
سیستم های حسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Breed-dependent susceptibility to acute sound exposure in young chickens Breed-dependent susceptibility to acute sound exposure in young chickens](/preview/png/9436637.png)
چکیده انگلیسی
Commercially available chickens fall into two categories: egg layers and broilers. Durham et al. (Hear. Res. 166 (2002) 82-95) showed that despite similar noisy living environments, cochleae of most adult broilers show extensive damage, while cochleae of adult egg layers are largely normal. This finding suggests that egg layers and broilers differ in their susceptibility to noise damage. Here, we evaluate breed differences in susceptibility to acoustic trauma. Young egg layers and broilers (10-17 weeks) were exposed to a 1500Â Hz pure tone (120Â dB SPL; 24Â h) and killed 24 or 72Â h later. Cochleae were prepared for scanning electron microscopy and photomicrographs of the cochlear surface were used to determine location and severity of damage. Cochleae were grouped based upon damage severity (moderate or severe). While location and area of damage were similar between both breeds at each recovery time, cochlear damage at 72Â h was more extensive than at 24Â h. We found no quantitative breed differences within either damage category or recovery time. However, more egg layers (25/27) than broilers (16/32) displayed severely damaged cochleae. Our findings conflict with those reported by Durham et al. (2002). Our results identify a breed-dependent difference in susceptibility to acute sound exposure, with young egg layers displaying increased sensitivity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Hearing Research - Volume 203, Issues 1â2, May 2005, Pages 101-111
Journal: Hearing Research - Volume 203, Issues 1â2, May 2005, Pages 101-111
نویسندگان
Christina L. Kaiser, Douglas A. Girod, Dianne Durham,