Damızlık yumurta tavuğu yemine organik veya inorganik mangan, çinko, bakır ve krom ilavesinin performans, yumurta kalitesi ve kuluçka özellikleri üzerine etkileri

Abstract

Bu araştırma, iki farklı seviyede organik veya inorganik Mn, Zn, Cu ve Cr karışımının (sırasıyla, 80, 60, 5 ve 0.15 mg/kg ve 40, 30, 2.5 ve 0.07 mg/kg) damızlık yumurta tavuklarının performans, yumurta kalitesi ve kuluçka özelliklerine etkilerini karşılaştırmak amacıyla düzenlenmiştir. Araştırma, 50 haftalık yaşta, toplam 360 adet Barred Rock hattı ile başlatılmış ve 16 hafta sürdürülmüştür. 4 ana grup her biri 15 tavuk içeren 6 tekerrüre rastgele dağıtılmıştır. Farklı iz mineral uygulamaları yaşama gücü, canlı ağırlık kazancı, yumurta verimi, yumurta ağırlığı ve kütlesi, yem tüketimi ve yemden yararlanma gibi performans parametreleri üzerinde önemli bir etki göstermemiştir. Yumurta kalite parametrelerinden, hasarlı yumurta oranı, şekil indeksi, kabuk oranı ve kalınlığı, ak yüksekliği ve haugh birimi bakımından gruplar arasında önemli farklılıklar bulunmamıştır. Bununla birlikte, düşük iz mineral seviyesi kabuk kırılma mukavemetinde önemli bir azalmaya sebep olmuştur. (P < 0.05). Farklı iz mineral uygulamaları, kuluçkalık ve döllü yumurta oranları üzerine önemli bir etki göstermemiştir. Organik (metiyonin şelatı) Mn, Zn, Cu ve Cr’ un yüksek (sırasıyla, 80, 60, 5 ve 0.15 mg/kg) düzeyleri çıkış gücü ve kuluçka randımanını diğer gruplara göre artırmıştır (P < 0.05)

Keywords

• Damızlık tavuk
• iz mineral
• kuluçka özellikleri
• performans
• yumurta kalitesi

Effects of dietary organic or inorganic manganese, zinc, copper and chrome supplementation on the performance, egg quality and hatching characteristics of laying breeder hens

Abstract

This study was conducted to compare the effects of organic or inorganic Mn, Zn, Cu and Cr mixture using two different levels (80, 60, 5 and 0.15 mg/kg and 40, 30, 2.5 and 0.07 mg/kg, respectively) on the performance, egg quality and hatching characteristics of laying breeder hens. The experiment began with a total of 360 hens from Barred Rock line at 50 weeks of age and continued for 16 weeks. Each of the four dietary treatments was randomly assigned to six replicates, which included 15 hens each. Different trace mineral applications did not result in a significant effect on performance parameters such as livability, body weight gain, egg production, egg weight and mass, feed intake, and feed conversion. No significant differences in egg quality parameters such as damaged egg rate, shape index, eggshell rate and thickness, albumen height and haugh unit were observed among the groups. However, the low level of trace minerals resulted in a significant reduction in eggshell breaking strength (P < 0.05). Different trace mineral applications did not show a significant effect on hatching and fertilised eggs ratio. The dietary supplementation of organic (chelated with methionine) Mn, Zn, Cu and Cr at high levels (80, 60, 5 and 0.15 mg/kg, respectively) increased the hatchability of the fertilised eggs and hatchability compared to that of the other groups (P < 0.05)

Keywords

• Breeder hen
• egg quality
• hatching characteristics
• performance
• trace mineral

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