نتایج جستجو برای: egg physical quality
تعداد نتایج: 1397551 فیلتر نتایج به سال:
this experiment was conducted to evaluate the effects of using rice bran, combo multi-enzyme and probiotic (protexin) in diet on performance, egg traits, biochemical parameters and blood cells of commercial laying hens. this experiment carried out using 384 hi-line (w36) laying hens in a completely randomized design as factorial (2×2×2) arrangement with two levels of rice bran (0 and 10%), two ...
Extended Abstract Introduction and Objective: Since the phenomenon of inflammation is considered as one of the significant challenges in different sectors of the livestock industry, so this study aims to evaluate the inflammatory strategy of Theophylline (a Phosphodiesterase, PDE inhibitor) on some production characteristics in laying hens at the late period of egg production (The severity of ...
This study aimed at evaluating the effect of dietary calcium levels and the replacement of calcium sources with different particle size compositions on the performance and egg quality of brown layers in their second egg production cycle. A randomized block experimental design was applied with 12 treatments in a 3x4 factorial arrangement: three calcium levels (2.6, 3.2, 3.8 %) and four combinati...
this experiment was conducted to evaluate and compare antibiotic, organic acid, probiotic and prebiotic effects on performance, egg quality and blood metabolites in commercial laying hens. the experiment was a completely randomized design with 160 laying hens strain hy line (w-36) from 32 to 42 weeks of age with 5 treatments and 4 replicates of 8 hens each. the experimental treatments consisted...
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