effect of different levels of silymarin (silybum marianum) on growth rate, carcass variables and liver morphology of broiler chickens contaminated with aflatoxin b1

نویسندگان

fani makki o

afzali n

omidi a

چکیده

this experiment was conducted to evaluate the ability of silybum marianum seeds (sms) on performance, carcass variables, and liver morphology of the broiler chickens contaminated with aflatoxin b1 (afb1). a total of 216 broiler chicks (ross 308) were used. birds were randomly assigned to nine treatment groups, with four replicates and six birds in each replicate. chickens were reared on litter from 1 to 35 days of age. treatments were (afb1) in three levels (zero, 250 and 500 ppb) and sms in three levels (zero, 0.5 and 1.0 percent) using factorial experiment based on completely randomized design. feed intake at the end of the three weeks did not significantly change in comparison with the control group. with the increase in the level of (afb1) in the diet, feed intake and body weight gain were decreased compared with the control group in week 4. feed conversion ratio was not influenced by the treatments. in diets containing afb1, breast muscle, carcass ratio, abdominal fat and bursal gland weight were significantly decreased (p1 alone did not affect thigh, back, neck, wings, heart, legs and spleen weights. increasing the level of sms in the diet alone or in combination with afb1 resulted in significant changes in the weights of carcass and internal organs. liver of birds fed diets containing afb1 showed abnormal signs including enlargement, yellowish, friable and rounded shape. liver of other treatments did not show any abnormal signs. in conclusion, these findings suggest that silymarin might be used in chickens to prevent the effects of afb1 in contaminated feed.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Effect of Different Levels of Silymarin (Silybum marianum) on Growth Rate, Carcass Variables and Liver Morphology of Broiler Chickens Contaminated with Aflatoxin B1

This experiment was conducted to evaluate the ability of Silybum marianum seeds (SMS) on performance, carcass variables, and liver morphology of the broiler chickens contaminated with aflatoxin B1 (AFB1). A total of 216 broiler chicks (Ross 308) were used. Birds were randomly assigned to nine treatment groups, with four replicates and six birds in each replicate. Chickens were reared on litter ...

متن کامل

: the effect of sericin levels (silk glue protein) on rate of in vitro maturation, fertilization and culture of sheep oocytes

هدف از آزمایش اول بررسی اثر سطوح مختلف سریسین [0 (control), 0.1, 0.5, 1.0, 2.5 %] افزوده شده به محیط , ivm بر cumulus cell expansion، بلوغ هسته و توسعه متوالی جنین، در گوسفندان نژاد سنجابی در فصل تولید مثلی می باشد. از سرگیری میوز به وسیله خارج شدن اولین پولار بادی اندازه گیری و هم چنین درصد رسیدن جنین های دو سلولی به مرحله کلیواژ و بلاستوسیت نیز به عنوان نشانه ای از میزان شایستگی توسعه اولیه ج...

Effect of Different Levels of Molasses Distillers Condensed Soluble on Broiler Chickens Performance, Carcass Traits and Intestinal Morphology of Broilers

An experiment was conducted to investigate the effect of molasses distillers condensed soluble (MDCS) on growth performance, carcass characteristics and intestinal morphology of broilers. A total of 400 one day-old, unsexed Ross 308 broiler chicks were randomly allotted to 20 cages. The dietary MDCS levels incorporated 0% and 4% in the starter and 0%, 4% and 8% in grower diet, respectively. The...

متن کامل

the effect of task cognitive complexity and time limit on the performance of the learners with different proficiency levels in second language writing skill

this study investigated the effects of manipulating the cognitive complexity of tasks along +/- few elements and the time limits on l2 learners writing performance. to conduct the study, 60 iranian efl learners with two levels of proficiency, low and high intermediate, were selected and assigned to three groups based on the time devoted to task completion. the participants performed both a simp...

15 صفحه اول

Effect of Different Levels of Germinated Barley on Live Performance and Carcass Traits in Broiler Chickens

An experiment was conducted to evaluate the effect of different levels of germinated barley (GB) on live performance and carcass traits in broiler chickens. The experiment lasted for 5 weeks starting from 7 days of age and ending at 42 days of age. Chicks (Ross 308) were fed six dietary treatments including a corn–soy diet (corn diet), a barley–soy diet (barley diet), a barley diet plus enzymes...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
poultry science journal

ناشر: gorgan university of agricultural sciences & natural resources

ISSN 2345-6604

دوره 1

شماره 2 2013

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023