آزمایش حاضر به منظور بررسی اثر حفاظتی دو گیاه دارویی آویشن و خارمریم بر سیستم ایمنی و برخی از فراسنجه‌های خونی جوجه‌های گوشتی انجام پذیرفت. در این پژوهش تعداد 160 قطعه جوجه گوشتی سویه راس 308، با 4 تیمار، 4 تکرار و 10 قطعه جوجه در هر واحد آزمایشی به مدت 21 روز روی بستر پرورش داده شدند. تیمارهای آزمایشی عبارت بودند از؛ 1-شاهد، 2- جیره حاوی 200میلی‌گرم بر کیلوگرم بذر گیاه خار مریم، 3- جیره حاوی 200میلی‌گرم بر کیلوگرم برگ گیاه آویشن و 4- ترکیب جیره حاوی 200+200میلی‌گرم بر کیلوگرم بذر گیاه خارمریم به همراه برگ گیاه آویشن. در چالش sRBCs (sheep red blood cells) (8 درصد) طیور دریافت‌کننده جیره‌های محتوی سطوح مختلف گیاهان دارویی، تغییر معنی‌داری را در سطوح IgA، IgG، IgM، فعالیتآنزیم‌های کبدیALT)،AST و (GGT، مقدار تیتر HIعلیه بیماری‌های نیوکاسل، آنفوانزا، برونشیت و گامبرو نشان ندادند (05/0p>).نتایج پژوهش حاضر نشان داد که با ترکیب آویشن و خارمریم در جیره غذایی طیور، سطوح متغیرهای سرمی پروتئین تام، گلوبولین، آلبومین و HDL افزایش و در مقابل سطوح متغیرهای کلسترول، LDL و تری‌گلیسرید نسبت به گروه شاهد کاهش یافت (05/0p<). همچنین تعداد لنفوسیت و هتروفیل در طیور دریافت‌کننده ترکیب حاوی دو جیره غذایی افزایش یافت(05/0p<). در نتیجه استفاده از دو گیاه دارویی آویشن و خارمریم، به ویژه ترکیب آن‌ها در جیره غذایی طیور سبب بهبود برخی از فراسنجه‌های خونی و کاهش اسیدهای چرب مضر سرمی خون جوجه‌های گوشتی می‌شود. پرونده مقاله

Background & Aim: Aflatoxin (AF) is the most important fungus that contaminates food and feed and can enter the food chain of humans. The aim of this study was to investigate the ability of thistle seeds (silybum marianum L.) to reduce the adverse effects of aflatoxin B1 (AFB1) on the immune system, variables related to the intestine, appearance and mortality of the broiler chickens.Experimental: In this experiment, a total of 216 male Ross 308 broiler chickens in a completely randomized factorial design 3 × 3 with nine treatments, four replications, and six chickens unit were grown on the ground for 35 days. Treatments was included three levels of AFB1 (0, 250, and 500 ppb) and three levels of milk thistle seed (0, 0.5 and 1%). Influenza and Newcastle diseases virus (IDV & NDV) titers in two steps (25 and 34 days), variables related to the intestine at the end of the experiment along with the weekly appearance and mortality of broiler chickens were evaluated.Results & Discussion: Analysis of IDV and NDV results in the day 34 showed a reduction in titers of them in birds receiving diets contaminated with 500 ppb AFB1 (p ≤ 0.05). Also, the length of the ileum and the total intestine at the end of the experimental period (day 35) indicated decrease in the group of birds received diets containing 500 ppb AFB1 (p ≤ 0.05). Chicks receiving diet containing 500 ppb of AFB1 had the most of feather abnormalities, aggressive behavior and minimal body size compared with other treatments. Mortality due to AFB1 consumption in various experimental treatments was not significant.Recommended applications-industries: Probably phitosomes of milk thistle seeds (MTS) reduce the mortality rate, nervous and aggressive behavior and increase the immunity of broilers against IDV & NDV in AFB1 exposure time. پرونده مقاله

Background & Aim: Medicinal plants is very potential to be used as a supplementary feed as well as feed additive in broilers.This experiment was conducted to investigate the effects of milk thistle (MT) and thyme seeds (TS) on the performance in broilers. Experimental: In this study, 160 one-day-old (Ross 308) male broiler chicks were divided randomly into four major groups with 4 replicates based on a completely randomized design. Dietary treatments was included; i.e., (A) Control, (B) diet with 20 mg per kg of MT, (C) diet with 20 mg per kg of TS and (D) diet with 20 + 20 mg per kg of MT and TS, respectively. The birds were reared for 35 days in wooden pens. Also, feed and water were provided ad libitum. Feed intake (FI) and body weight gain (BWG) were measured in 3 stage (one-14, 14-28 and 28-35 days) for each replicate and feed conversion ratio (FCR) was calculated. Results: At One to 28 days of age, feed intake, body weight gain and feed conversion ratio were no affected by dietary supplementation, while the percentage of abdominal fat was reduced by 3.14%, 3.11% and 3.32% for groups (B), (C), and (D), compared to group (A) 4.23%, respectively (P < 0.05). Birds fed the (D) supplemented treatment (MT plus TS) had the greatest FI and BWG levels (P < 0.05) than the control birds (group A) at 28 to 35 days. However, dietary supplementation (MT and/or TS) reduced (P < 0.05) the conversion ratio levels in the 28 to 35 days of study, and this effect was more pronounced for the (D) treatment (MT plus TS). Recommended applications/industries: In conclusion, the present research indicated that supplements of powdered thistle seeds and/or thyme seeds have a protective influence on the growth performance in broiler chicks. پرونده مقاله