Yumurta Tavuğu Yemlerinde Gama Işınlanmış Buğday ve Arpa Kullanılmasının Yumurta Verim Kriterleri ve Kalitesi Üzerine Etkileri

Bu çalışmada yumurta tavuğu yemlerinde 0, 10, 100 kilogray (kGy) düzeyinde gama ışınlanmış arpa ve buğday kullanılması ile enzim ilavesinin yumurta verim kriterleri ve kalitesi üzerine etkileri incelenmiştir. Çalışma 36 haftalık yaşta 324 adet Brown Nick kahverengi yumurtacı tavuk kullanılarak 10 hafta sürdürülmüştür. Deneme 6 tekerrürlü olarak her bir alt grupta 6 adet tavuk olmak üzere 9 grupta tesadüf blokları deneme düzeninde yürütülmüştür. Gama ışınlamanın yumurta ağırlığı üzerine etkisi önemsiz bulunurken; arpa ağırlıklı rasyona enzim ilavesi yumurta ağırlığını arpa kontrole göre önemli miktarda artırmıştır. Arpa ağırlıklı gruplarda enzim ve 100 kGy dozunda gama ışın uygulamasının yumurta üretimini arpa kontrole göre önemli düzeyde iyileştirdiği bulunmuştur. Yemden yararlanmanın gama ışınlanmış arpa ve enzim kullanılan tavuklarda arpa kontrol yemi ile beslenen tavuklara göre önemli düzeyde iyileştiği tespit edilirken, buğday ağırlıklı gruplarda muamelelerin etkisi önemsiz bulunmuştur. Sonuç olarak gama ışınlamanın mevcut araştırma koşullarında, buğdayda, yumurta verim kriterleri ve kalitesinde çok belirgin bir katkı sağlamadığı, arpada kısmen etkili olduğu ve günümüz koşullarında uygulamasındaki zorluklar nedeniyle başarısının sınırlı olacağı sonucuna varılmıştır.

The Effects of Using Gamma Irradiated Wheat and Barley in Layer Diets on Egg Product Parameters and Quality

In this study, the effect of using gamma irradiated barley and wheat 0, 10 and 100 kiloGray (kGy) and enzyme supplementation on the egg product criterions and external and internal egg quality was examined. In this experiment, 36 weeks old, 324 Brown Nick laying hens were used for ten week. The study was a randomized complete block design with 9 dietary treatments within 6 blocks of 54 pens each 6 birds per pen. Although egg weight was not significantly affected by gamma irradiation; enzyme supplementation of barley based diet significantly increased egg weight compared to barley control group. As egg mass production was considered, enzyme and 100 kGy gamma irradiation significantly improved the egg mass production compared to barley control. The feed conversion ratio was significantly improved by using gamma irradiated barley and enzyme in barley based diets (P<0.01) in comparison to barley control birds, while this was not observed in wheat treatments. It is concluded that gamma irradiation had no clear benefits on egg product parameters and quality of laying hens especially fed with wheat, but had some improvement of nutritional value of barley, however its use would be limited because of challenges in the application of gamma irradiation in practice.

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