مهناز حقی جمادی - دانشگاه محقق اردبیلی فارغ التحصیل کارشناسی ارشد
جمال سیف دواتی - دانشگاه محقق اردبیلی
حسین عبدی بنمار - عضو هیئت علمی دانشگاه محقق اردبیلی
فرزاد میرزائی آقجه قشلاق - دانشگاه محقق اردبیلی
رضا سید شریفی - عضو هیات علمی گروه علوم دامی دانشگاه محقق اردبیلی

AbstractIIntroduction: Recent advances in nanotechnology suggest that nanoscale particles were used in medicine, dietary additives, and engineering arenas. However, their possible toxicity to people, animals, and environmental health is still unclear. The researchs showed that the ruminal fermentation of sheep with different levels of copper oxide nanoscale particles produced acetic acid and volatile fatty acid at the appropriate amount of copper oxide nanoscale particles stimulates rumen fermentation. Aim: This investigation was designed to evaluate copper oxide nanoscale particles' supplementation with plant and animal protein types by biogas production method. Material and method: The produced gas from incubated syringes at ۲, ۶, ۱۲, ۲۴, ۴۸ and ۷۲ h was measured by Menke and Steinggass (۱۹۸۸) assay. For this purpose three amounts of ۰, ۳۰, and ۶۰ ppm of copper oxide nanoparticles was impregnated in three types of plant proteins (soybean meal, canola meal and cottonseed meal) and three types of animal protein (poultry offal meal, fish meal and blood meal) and were applied in a completely randomized plan by three replications and two-run (a total of ۶ repetitions). Results: The obtained results indicated that after ۷۲ h, the highest of produced gas achieved for soybean meal from plant protein (۵۸.۴ mL/۲۰۰ mg dry matter (DM)) and in animal protein sources was obtained for fish meal (۳۶.۷ mL/۲۰۰ mg DM). The higher digestible organic matter (DOM) and short-chain fatty acids (SCFA) were related to soybean meal, and the smaller of them was related to a blood meal. Also, the higher metabolizable energy (ME) of soybean meal for the quantities of zero were ۳۰ and ۶۰ ppm of copper oxide nanoscale particle, ۶.۴۸, ۵.۶۵, and ۶.۵۲ MJ/Kg DM, and the lower values of this case was found for blood meal ۳.۰۷, ۳.۹۱, and ۴.۰۱ MJ/Kg DM, respectively. The maximum and minimum amounts of microbial protein (MP) were achieved for soybean meal and blood meal ۵۲.۹۲ and ۲۲.۱۷ g/kg DOM, respectively. Conclusion: As a whole, copper oxide nanoscale particles could be improved fermentation parameters in some of the protein types.

انواع پروتئین, تولید گاز, پارامترهای تغذیه ای, روش آزمایشگاهی, نانو اکسید مس