M. Kenan TÜRKYILMAZ, AHMET NAZLIGÜL, EVRİM DERELİ FİDAN, Pınar A. ULUTAŞ

Akut gürültünün etlik piliçlerde korku ve bazı stres göstergeleri üzerine etkileri

Bu çalışmanın amacı, akut gürültünün etlik piliçlerde korku ve bazı stres göstergeleri üzerine etkilerinin araştırılmasıdır. Araştırmada günlük yaştaki 192 etlik piliç (Ross 308) civciv, her grupta 24’er hayvan (12 erkek, 12 dişi) olacak şekilde 4 ayrı gruba iki tekrarlı şekilde rasgele dağıtılmıştır. 42 günlük normal yetiştirme dönemi sonunda hayvanlar ses düzeyi 80, 100, 120 ve 55 (Kontrol) dB olacak şekilde ayarlanmış ses düzenekleriyle 15 dk. süreyle akut gürültüye maruz bırakılmıştır. Analiz sonucunda 100 ve 120 dB gürültü düzeylerinde kortikosteron düzeyinin önemli oranda yükseldiği saptanmıştır (P

Anahtar Kelimeler:

kortikosteron, hayvan davranışları, kan şekeri, etlik piliç, civciv, stres yanıtı, stres, kümes hayvanları işletmesi, kümes hayvanları, gürültü, kolesterol

The effects of acute noise on fear and some stress parameters in broilers

The aim of this study was to investigate the effects of acute noise on some stress parameters and fear reactions in broilers. Day old 192 broiler chicks (Ross 308) were randomly allocated to 4 different treatment groups containing 24 birds (12 male, 12 female) for two replication. After 42 days regular rearing period, birds were exposed to 55 (control), 80, 100 and 120 dB acute noise for 15 min. with a device hanged to their rooms. Results showed that corticosterone levels at 100 dB and 120 dB noise levels increased significantly (P<0.001). It was revealed that acute noise had increased blood cholesterole levels in all treatment groups, but increased glucose levels only in 120 dB noise group. Conversely total protein level decreased according to increase in noise level. Tonic Immobility Test (TI) in which there were no significant differences between TI durations for all treatment groups, revealed that acute noise has negative effect on fear in broilers. On this context, TI trials were recorded as high in control group (1.8) than 100 and 120 dB groups (1.4 ve 1.3). It was concluded that acute noise over 100 dB have negative effects on some stress parameters and fear in broilers, for that reason broilers should housed at lower noise levels.

Keywords:

corticosterone, animal behaviour, blood sugar, broilers, chicks, stress response, stress, poultry farming, poultry, noise, cholesterol,

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