Yusuf UZUN, Özcan YÜCELT, Seyyed Naeim SABER, Metehan KUTLU, Ladine ÇELİK, Aykut BURĞUT, Hasan Rüştü KUTLU, Harun KUTAY, Nurten TOY, Pascal THIERY, Barış YAVUZ

Bir Mantar Tarafından Üretilen Multi-enzimin Mısır-Soya Bazlı Rasyonla Beslenen Broyler Civcivlerinin Büyüme Performansı ve Karkas Parametrelerine Etkisi

Mevcut çalışma, 35 günlük bir besi döneminde iki farklı kümes yoğunluğunda, yaklaşık %3 daha az besin (enerji, protein, aminoasit, kalsiyum ve fosfor) içerikli yem tüketen broyler civcivlerde bir mantar tarafından üretilen multi-enzimin performansı koruyup koruyamayacağını test etmek için yapılmıştır. Her iki çalışmada, pozitif kontrol standart broyler yemi, negatif kontrol standart broyler yeminden %3 daha az besin maddesi içeren yem ve enzim grubu negatif kontrol yemi+takviye enzim tüketmiştir. İlk denemede günlük yaşta 1000 civciv 10 civciv/m2şeklinde yerleştirilmiş, deneme sonunda enzim takviyesiyle negatif kontrole zıt şekilde yalnızca yemden yararlanma oranı ve vücut gelişiminde %1’lik iyileşme sağlanmıştır. İkinci denemede günlük yaşta 1600 civciv 16 civciv/m2şeklinde yerleştirilmiştir. 35 gün sonunda elde edilen sonuçlar enzim takviyesinin negatif kontrolden elde edilen sonuçlara zıt şekilde broyler performansını yaklaşık %3.5 iyileştirdiğini göstermiştir. Sonuç olarak, mısır/soya bazlı broyler rasyonlarına bir mantar tarafından üretilen multi-enzim ilavesi 16 civciv/m2yoğunlukta yerleştirilmiş broylerlerde yem formulasyonundan doğan %3 besin maddesi boşluğunu doldurmak üzere büyük potansiyel sağlamıştır. Ancak, yüksek konfor ve 10 civciv/m2yoğunluğu gibi daha iyi yetiştirme şartlarında, enzimin olumlu etkisi sınırlandırılmıştır.

Effect of Multi-enzyme Produced By a Single Fungus on Growth Performance and Some Carcass Parameters of Broiler Chicks Fed on Maize-Soya Based Diets

The present study was conducted to test whether a multi-enzyme produced by a fungus would keep performance of broiler chicksreceiving a diet with almost 3% less nutrients (energy, protein, amino acids, calcium and phosphor) under two different housing density.In both experiments, positive control received standard broiler diet, negative control received a diet with 3% less nutrients than standardbroiler diet and enzyme group received the negative control diet+supplemental enzyme. In the first trial with 1000, day-old chickshoused 10 birds/m2, only 1% improvement in feed conversion efficiency and body growth was achieved with enzyme supplementationin contrast to the negative control at the end of 35 days feeding period. In the second trial with 1200, day-old-chicks accommodated16 birds/m2. The results showed that enzyme improved broiler performance almost 3.5% in contrast to the performance obtained fromthe negative control. In conclusion, supplementing broiler diets based on maize/soya with a multi-enzyme produced by a single fungusprovides a great potential to gain the gap created by formulating almost 3% nutrients reduction in broilers housed with 16 birds/m2density. However, providing high comfort and better rearing condition as the birds at 10 birds/m2 density, positive effects of the enzymewas limited.

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