Journals / Hayvansal Üretim / 2018 / Cilt: 59 - Sayı: 2

The Effects of Different Waveforms and Frequency Values in Pre-slaughter Stunning by Electricity on Some Welfare Parameters and Carcass Defects

Etlik Piliçlerin Kesim Öncesi Elektrik ile Bilinçsizleştirilmesinde Farklı Dalga Tipi ve Frekans Değerlerinin Bazı Refah Parametreleri ve Karkas Kusurları Üzerine Etkileri

Pages
17–25
Publication Date
2018-12-27
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

Conclusion: The results of research showed that chickens were better effectively stunned at the frequencies of 50 and 200 Hz, AC.

📌 3 Key Takeaways

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Objective & Hypothesis:Objective:In this study, the effects of electric current application including different wave types and frequency values on welfare parameters and carcass defects to render broilers unconscious before slaughter were examined.
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Key Findings & Data:Material and Methods: In study, a total of 180 forty three-day-old broilers were divided into 9 treatment groups with 20 chickens (10♀-10♂) each.
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Conclusion & Impact:Conclusion: The results of research showed that chickens were better effectively stunned at the frequencies of 50 and 200 Hz, AC.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Bilinçsizleştirme · dalga tipi · frekans

Abstract

Objective:In this study, the effects of electric current application including different wave types and frequency values on welfare parameters and carcass defects to render broilers unconscious before slaughter were examined. Material and Methods: In study, a total of 180 forty three-day-old broilers were divided into 9 treatment groups with 20 chickens (10♀-10♂) each. Treatment groups consist of a control group without electricity and eight groups stunned by using the electric current. Broilers were stunned in water bath with the electric currents, sine wave alternating current (AC) and pulsed direct current (pDC) of 120 mA and frequencies of 50, 200, 400, and 1000 Hz. To reveal the condition of chickens after the electric treatment, electrocardiogram (ECG) was recorded. Besides, the reflexes of eye, comb, foot, and the responses of breathing, wing flapping, shaking, cardiac fibrillation in chickens were also determined. Amount of blood loss in chickens during bleeding was measured. Also, carcass defects assessed. Results: The applied electrical current for stunning affected significantly the reflexes of eye, comb, and foot, the behavior of wing flapping and respiratory of broilers. The electrical stunning was generally increased carcass defects in broilers. Carcass defects caused by electric application occurred in the form of hemorrhagic spots in the middle part of wings and thighs in broilers (P<0.05). Conclusion: The results of research showed that chickens were better effectively stunned at the frequencies of 50 and 200 Hz, AC.

Özet

Amaç: Bu çalışmada, etlik piliçlerin kesim öncesi bilinçsizleştirilmesi için farklı dalga tipi ve frekans değerlerini içeren elektrik akımı uygulamasının, refah parametreleri ve karkas kusurları üzerindeki etkileri incelenmiştir.Materyal ve Metot: Çalışmada, 43 günlük toplam 180 (90♀-90♂) etlik piliç, her biri 20 (10♀-10♂) pilice sahip 9 gruba ayrılmıştır. Uygulama grupları, elektrik uygulanmayan kontrol grubu ve elektrik akımıyla bilinçsizleştirilen 8 deneme grubundan oluşmaktadır. Piliçler 50, 200, 400 ve 1000 Hz’lik frekanslarda, 120 mA’lik sinüs dalgalı alternatif (AC) ve pulslanmış doğru akımlar (pDC) ile su banyosunda bilinçsizleştirilmiştir. Elektrik uygulamasından sonra piliçlerin durumunu ortaya koymak için, elektrokardiyogram (EKG) kayıtları alınmıştır. Bunun yanı sıra, piliçlerde nefes alma, kanat çırpma, titreme ve kalp fibrilasyon tepkileri ve göz, ibik ve ayak refleksleri de belirlenmiştir. Kanama sırasında piliçlerdeki kan kaybı ölçülmüştür. Ayrıca, karkas kusurları da değerlendirilmiştir.Bulgular: Bilinçsizleştirme için uygulanan elektrik akımı piliçlerin göz, ibik ve ayak reflekslerini, kanat çırpma davranışını ve solunumunu önemli şekilde etkilemiştir (P<0.05). Elektrikle bayıltma genel olarak etlik piliçlerde karkas kusurlarını artırmıştır. Elektrik uygulamasından kaynaklanan karkas kusurları etlik piliçlerde kanatların orta kısmında ve butlarda spot kanamalar şeklinde meydana gelmiştir (P<0.05). Sonuç: Araştırma sonuçları, piliçlerin AC akımın 50 ve 200 Hz’lik frekanslarda daha etkili bir şekilde bilinçsizleştirildiğini göstermiştir.

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Cite This Article

HELVA, İ. B., AKŞİT, M. (2018). The Effects of Different Waveforms and Frequency Values in Pre-slaughter Stunning by Electricity on Some Welfare Parameters and Carcass Defects. Hayvansal Üretim, Cilt: 59 - Sayı: 2, 17–25. https://ajindex.com/articles/64971

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