The usage of enzyme and probiotic in laying hen rations containing sunflower seed meal 2-The effect on egg quality
2000
Yalcin, S. (Ankara Univ., Faculty of Veterinary Medicine, Ankara (Turkey)) Kahraman, Z. | Dedeoglu, H.E. (Poultry Research Inst., Ankara (Turkey)) Yalcin, S. (Selcuk Univ., Faculty of Veterinary Medicine, Konya (Turkey))
This study was carried out to determine the effects of the addition of enzyme and/or probiotic to laying hen rations on egg breaking strength, egg shell thickness, egg white index, egg yolk index and Haugh unit. A total of 600 SHSY type brown layers (21 weeks of age) were used in this experiment. They were randomly distributed into 30 pens at 20 hens per pen. Therefore 5 groups each containing 120 hens were designed. Diet of control group was prepared without using sunflower seed meal, enzyme and probiotic. Experimental diets containing 15% of sunflower seed meal were supplemented with enzyme, probiotic and enzyme + probiotic. The experimental period lasted 6 months
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