بروز تومورهای خودبه خودی در تخمدان و با شیوع کمتری نسبت به آن در مجرای تخم بر مرغان، متداول است.لیومیوما و آدنوکارسینوما متداول ترین تومورهای دستگاه تولیدمثلی مرغان تخم گذار می باشند. گزارش حاضر در خصوص رخداد آدنوکارسینومای متاستاتیک در یک گله مرغ تخم گذار با سن 80 هفته در سیکل دوم تخم گذاری در تابستان سال 1397و در استان مازندران می باشد. 8 قطعه مرغ تخم گذار تلف شده مربوط به گله مذکور،به بخش بیماری های طیوردانشکده دامپزشکی دانشگاه تخصصی فناوری‎هاینوین آمل ارجاع داده شدند. در کالبدگشایی، در مزانتر و سطح سروزی روده ندول های متعدد سفید-خاکستری مشاهده شد. تخمدان حاوی ندول های سفید-خاکستری بود. همچنین در چند مورد آسیتشکمی دیده شد. نمونه گیری از بافت های درگیر به عمل آمد و جهت پایدارسازی در فرمالین بافر 10 درصد قرار گرفت.در مطالعه میکروسکوپی، سلول های نئوپلاستیک مکعبی شکل در لایه های سروزی روده قرار داشتند. سلول ها دارای اندازه های مختلف، لبه های نامنظم، سیتوپلاسم گرانولی ائوزینوفیلی، هسته های گرد، هستک های ناهموار و دانه های کروماتین بودند. در روده سلول های نئوپلاستیک با ساختاری شبیه به تومور تخمدان مشاهده شد. Manuscript profile

Single cell protein (SCP) is the definition for dried cells originated from single-celled organisms intended to be used as a protein source in human foods or animal feeds. An experiment has been conducted to evaluate the various levels of single cell protein on fecal microflora and productive traits of broiler chickens. A total of 192 day-old Ross 308 male chicks were randomly divided into 4 treatments. Each treatment consists of 48 birds and 4 replicates of 12 birds each. From day one, birds were fed either a corn-soybean meal basal diet with different levels of SCP (0, 5, 10 and 15 percent of as fed basis diet). Four birds from each treatment were randomly selected for slaughter and microbial study at day 47. Total counts of aerobic bacteria, Lactobacillus and Coliforms in the gut were not significantly affected by dietary treatments. The SCP at the levels of 10 and 15% caused to severe mortality. Also, SCP had adverse impacts on body weight gain, feed intake and feed efficiency. In conclusion, although SCP reduced feed cost, but it had some adverse effects on birds’ performance. Manuscript profile

An experiment has been conducted to evaluate the effects of a liquid prebiotic (LP) on the carcass, digestive tract, and productive traits of Japanese quail. Eighty 7-day-old Japanese quails were randomly divided into 2 treatments. Each treatment consisted of 4 replicates (pens) of 10 birds each. The first treatment (control) contained a standard recommended diet with no added prebiotic. The second treatment was similar to the first diet accompanied by LP in the drinking water (0.5 milliliter LP per liter of water through the entire study). Feed and water were offered ad libitum from days 7 to 42. Feed intake (FI), body weight gain (BWG), and feed conversion ratio (FCR) were measured weekly. Utilization of LP did not have a significant effect on the relative weight of internal organs and carcass. The mortality rate was not influenced by treatments. In overall, the FI of birds receiving LP was significantly decreased, while BWG was considerably increased as compared to the control group. Consequently, overall FCR was dramatically improved. Manuscript profile