بررسي اثر هم كوشي پسماند ترخون، مورد و مشكك بر شاخص هاي آنتي اكسيداني، پاسخ هاي ايمونولوژيك و عملكرد مرغ هاي تخمگذار

چكيده انگليسي :

96Evaluation of the Synergism Effects of Artemisia dracunculus Myrtuscommunis and Ducrosia anethifolia Extract Residues on AntioxidantIndices Immunological Responses and Performance of Laying Hens Mohammad Rahimi Hossein Abadi mohammad rahimi@ag iut ac ir August 25 2014 Department of Animal Science College of Agriculture Isfahan University of Technology Isfahan 84156 83111 Iran Degree M Sc Language Farsi Supervisor A H Mahdavi mahdavi@cc iut ac ir H R Rahmani hrahmani@cc iut ac ir Abstract The current study was conducted to evaluate the synergistic effect of Artemisia dracunculus Myrtus communis and Ducrosiaanethifolia extract residues on performance egg quality blood biochemistry parameters ileal bacterial enumeration intestinal histology immunological responses antioxidant indices of blood and liver and fatty liver indices in laying hens In this study 180 Hy line W 36 Leghorn hens of 52 weeks of age were randomly assigned among 9 treatments with 4 cages of 5 birds each Dietary treatments consisted of positive control basal diet with 20 ppm vitamin E negative control NC basal diet without vitamin E or residues NC with 50 g kg Myrtus residues NC with 50 g kg tarragon residues NC with 50 g kg D anethifolia residues NC with 25 g kg Myrtus and 25 g kg D anethifolia residues NC with 25 g kg Tarragon and 25 g kg D anethifolia residues NC with 25 g kg Myrtus and 25 g kg tarragon residues and NC with 16 6 g kg Myrtus 16 6 g kg tarragon and 16 6 g kg D anethifolia residues that fed during a 80 d feeding trial including 10 days for adaptation period and 70 days as main recording period Performance parameters including feed intake feed conversion ratio egg production percentage egg weight egg mass and also egg quality were calculated on d 35 and 70 of experiment To investigate the immunological response sheep red blood cells SRBC were injected in twice with 10 d interval thereby hens were bled 6 and 12 d after the first and second injection respectively Moreover Newcastle disease virus was injected and then sera were taken 6 d after injection In addition differential leukocyte counts were evaluated at the end of experiment At the end of experiment two birds of each cage were exsanguinated to evaluate the relative weight of liver spleen as well as pancreas and also to sample ileal content and jejunal morphology The results of this experiment showed that administration of the mixture of Myrtus and D anethifolia residues resulted in increased villus height to crypt depth ratio P 0 05 improved antibody titer against SRBC P 0 07 and Newcastle disease virus P 0 05 and spleen weight P 0 001 caused a decrease in heterophil to lymphocyte ratio P 0 05 and a reduction in hepatic and serum MDA concentration Moreover dietary supplementation of the mixture of tarragon and D anethifolia residues led to a decrease in the ileal Escherichia coli enumeration P 0 01 an improvement in performance indices like egg production percentage P 0 001 egg production efficiency P 0 0001 feed conversion ratio P 0 001 and egg shell thickness P 0 01 Additionally tarragon residues resulted in decreased serum triglyceride P 0 05 and cholesterol P 0 0001 concentration In general results indicate that the best immunological and histological responses were observed when 50 g kg of Myrtus and D anethifolia residues were supplemented in laying hens while the best performance responses were belongs to birds fed on tarragon and D anethifolia residues These results fortify the existence of synergistic relationship between the bioactive compounds of plant on improving physiological responses Key word Artemisia dracunculus Myrtus communi Ducrosia anethifolia laying hens immunological responses performance

رحيمي حسين آبادي، محمد

بررسي اثر هم كوشي پسماند ترخون، مورد و مشكك بر شاخص هاي آنتي اكسيداني، پاسخ هاي ايمونولوژيك و عملكرد مرغ هاي تخمگذار

هيستولوژي ژژنوم