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The present research assessed the treatment effi ciency of odorogenous pollutants in air from a hatchery hall vented on organic and organic-mineral beds of an enclosed-container biofi lter. In this study, the following media were used: organic medium containing compost and peat (OM); organic-mineral medium containing bentonite, compost and peat (BM); organic-mineral medium containing halloysite, compost...
The effect of dried herbs (2%) substituted for antibiotic growth promoter (AGP) in compound feeds for broiler chickens was investigated. Nettle, pansy, lemon balm, lime tree and mint, compared to the control birds given AGP, did not affect broilers body weight significantly whilst hop cone depressed weight gain remarkably. None of examined herbs decreased the content of crude protein (CP) in a breast...
Three-day-old 105 Ross race female broiler chicks were used. The chickens were divided into 5 groups comprising 1 control and 4 experimental groups. Animals in the control group (group 1) were provided with normal drinking water, whereas the experimental groups, namely, group 2, group 3, group 4 and group 5 were administered with tilmicosin at doses of 20 ppm, 40 ppm, 80 ppm and 160 ppm (approximately,...
The experiment was conducted to investigate the effect of different doses of deoxynivalenol on plasma indices of broiler chickens. Forty-two one-day-old male broiler chicks were fed 1 of 3 diets containing deoxynivalenol (DON) for 42 d. The diets included: (1) control (0.2 ppm of deoxynivalenol), (2) low level of deoxynivalenol (1 ppm of DON), and (3) high level of deoxynivalenol (3 ppm of DON). Then,...
In the present study we determined whether CpG motifs could be used as an immune adjuvant for the Omp-1 DNA vaccine against Chlamydophila psittaci, based on the major outer membrane protein (MOMP), to induce the protection in specific pathogen free chickens against an intranasal challenge. Six sequences of phosphorothioate-CpG oligodeoxynucleotides (CpG ODNs) with strong immunostimulatory activity...
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