The Effects of Dry Yeast ( Saccharomyces cerevisiae ) on Growth Performance in Broiler Chicks

Kuru Maya ( Saccharomyces cerevisiae )’ nın Etlik Civcivlerde Büyüme Performansına Etkisi

Abstract

In this study, broiler diet was supplemented with 0 (control), 0.3 and 0.6% and dry yeast ( Saccharomyces cerevisiae ) and their effects on growth performance body weight, and feed conversion ratio in broiler chicken were investigated weekly. One day old Ross 308 broiler chicks were divided into nine groups (40 birds for each group) randomly. The first three groups were fed on diet supplemented with 0.3% dry yeast. Second groups were fed on diet supplemented with 0.6% dry yeast and other there groups were used as control. Groups were separated by knitted fence and floored area was formed 4 square meters. Four different type commercial diets (starter, grower, broiler and finisher) were used in the experiment. Feeds weighed (10 kg) separately and spread on polyethylene with 2-3 cm in thickness. Measured 30 g and 60 g dried yeast was added on the feed and mixed. At the end of the experiment, there was no significant difference between body weight of the groups (P> 0.05). At the end of 6 weeks, final live weights in control, 0.3% and 0.6% dry yeast supplemented groups were 2597.7, 2654.9 and 2568.4 g, respectively. There was no significant difference between the groups in terms of feed conversion ratio (P> 0.05). At the end of 6 weeks, the feed conversion rates in the control, 0.3% and 0.6% dry yeast supplemented groups were 1.64, 1.69 and 1.68, respectively. It can be concluded that dietary supplementation of dry yeast did not change growth performance in broiler chicks.

Özet

Bu çalışmada, yemlerine sırası ile % 0 (kontrol), 0.3 ve 0.6oranlarında kuru maya ( Saccharomyces cerevisiae ) ilave edilen etlikpiliçlerin (broyler) büyüme performansları araştırılmış, haftalaragöre canlı ağırlıkları ve yem dönüşüm oranları incelenmiştir.Denemede her grup 3 tekerrür ve 4m 2 her tekerrüre 40 adet karışıkcinsiyette Ross308 etlik civciv konulmuştur. Denemede standart 4çeşit ticari yem (başlangıç, büyütme, etlik piliç ve bitirme)kullanılmıştır. Deneme sonunda, haftalara göre canlı ağırlıkbakımından gruplar arasında istatistikî olarak bir farkgörülmemiştir (P>0.05). 6. hafta sonunda kontrol, % 0.3 ve % 0.6kuru maya gruplarındaki canlı ağırlıklar sırası ile 2597.7, 2654.9 ve2568.4 g olarak bulunmuştur. Yem dönüşüm oranı (FCR)bakımından da gruplar arasında istatistikî bir fark bulunmamıştır(P>0.05). 6. hafta sonunda kontrol, % 0.3 ve % 0.6 kuru mayagruplarındaki yem dönüşüm oranları sırası ile 1.64, 1.69 ve 1.68olarak bulunmuştur. Sonuç olarak, etlik piliç yemlerine farklıoranlarda ilave edilen kuru mayanın canlı ağırlık kazancı ve yemdönüşüm oranına etkisinin olmadığı belirlenmiştir.