ADNAN ŞEHU, SEHER KÜÇÜKERSAN, BEHİÇ COŞKUN, BEKİR HAKAN KÖKSAL

Effects of graded levels of crude glycerine addition to diets on growth performance, carcass traits and economic efficiency in broiler chickens

Bu araştırmanın amacı, rasyona artan düzeyde ham gliserin ilavesinin broylerlerde büyüme ve ekonomik performans, karkas randımanı, iç organ ağırlıkları ve etin nem düzeyi üzerine etkilerinin belirlenmesidir. Bu amaçla toplam 270 adet bir günlük yaşta erkek broyler civciv (Ross 308) her biri izokalorik ve izonitrojenik olan ve artan düzeylerde (sırasıyla %0, %5 ve %10) ham gliserin içeren yemlerle beslenen üç eş gruba ayrılmıştır. Her bir deneme grubu her biri kendi içinde 18 adet civciv içeren 5er alt gruba ayrılmıştır. Hayvanlar denemenin sonlandığı 42. güne kadar yem ve suya ad libitum olarak ulaşmışlardır. Deneme sonunda %5 düzeyinde ham gliserin ilavesinin canlı ağırlık, canlı ağırlık artışı ve yemden yararlanma oranlarını bazal rasyonla beslenen hayvanlara göre önemli ölçüde iyileştirdiği belirlenmiştir (P

Rasyona artan düzeylerde ham gliserin ilavesinin broylerlerde büyüme performansına, karkas özelliklerine ve ekonomik etkinliğe olan etkileri

The aim of the current study was to evaluate the effects of graded levels of crude glycerine addition to diets on growth and economic performance, carcass yield, organ weights and moisture levels of meat in broiler chickens. For this purpose, a total of 270 one day old male chicks (Ross 308) were randomly divided into 3 equal groups which fed with isocaloric and isonitrogenous diets with graded levels (0%, 5% and 10%, respectively) of crude glycerine. Each of experiment group was constituted by 5 subgroups with 18 birds each. The birds had ad libitum access to feed and water until termination of the experiment at d 42. Results indicated that 5% dietary crude glycerine addition improved body weight, body weight gain and feed conversion ratio compare with birds fed with basal diet at d 42 (P<0.01). Similarly, dietary 10% crude glycerine supplementation also increased growth performance and improved FCR in broiler chickens at 28th and 42nd days of experiment (P<0.05 and P<0.001, respectively). Moreover, birds fed with 5% dietary crude glycerine had showed over 20% higher relative economic efficiency compare than birds fed basal diet. As a conclusion, dietary crude glycerine addition improved growth and economic performance and Feed Conversion Ratio of broilers in both supplementation levels.

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