Performance development of broiler chickens fed diets containing the seeds of Silybum marianum L. and Thymus vulgaris L.

Document Type : Original article

Authors

1 Department of Animal Science, Faculty of Agriculture, Birjand University, Birjand, Iran

2 Research Center of Special Domestic Animal, Zabol University, Zabol, Iran

Abstract

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.

Keywords

Article Title [فارسی]

افزایش عملکرد جوجه های گوشتی تغذیه شده با جیره حاوی دانه های خارمریم و آویشن

Authors [فارسی]

  • امید فانی مکی 1
  • محمود قزاقی 2
  • حسین انصاری نیک 2
1 گروه علوم دامی، دانشکده کشاورزی، دانشگاه بیرجند، بیرجند، ایران
2 مرکز تحقیقات حیوانات اهلی، دانشگاه زابل، زابل، ایران
Abstract [فارسی]

مقدمه و هدف: گیاهان دارویی از قابلیت بالایی به عنوان ماده افزودنی در خوراک جوجه­های گوشتی برخوردار هستند. این آزمایش به منظور بررسی اثر دانه­های خارمریم و آویشن بر عملکرد جوجه­های گوشتی انجام پذیرفت. روش تحقیق: در این مطالعه، 160 قطعه جوجه گوشتی نر یک­روزه نژاد راس 308 به صورت تصادفی در چهار گروه، 4 تکرار و در قالب طرح کاملأ تصادفی تقسیم شدند. جیره­های آزمایشی عبارت بودند از؛ A) شاهد، ­B) جیره حاوی 20 میلی­گرم/کیلوگرم دانه گیاه خارمریم،­C) جیره حاوی 20 میلی­گرم/ گیلوگرم بذر آویشن و D) جیره حاوی به ترتیب 20+20 میلی­گرم/کیلوگرم دانه­های خارمریم و آویشن. جوجه­ها به مدت 35 روز روی بستر پرورش داده شدند. هم­چنین، آب و خوراک آزادانه در اختیار آن­ها قرار گرفت. مصرف خوراک و افزایش وزن بدن در 3 مرحله (1-14، 14-28 و 28-35 روزگی) اندازه گیری شد و ضریب تبدیل غذایی مربوط به هر تکرار محاسبه گردید. نتایج و بحث: تا سن 28 روزگی مصرف خوراک، افزایش وزن بدن و ضریب تبدیل غذایی تحت تأثیر تیمارهای آزمایشی قرار نگرفت. در حالی که درصد چربی بطنی در گروه­های B، C­و D به ترتیب  14/3%، 11/3% و  32/3% در مقایسه با گروه شاهد (23/4%) کاهش یافت (05/0p < ). در محدوده 28-35 روزگی، پرندگان تغذیه شده با جیره حاوی خارمریم به همراه آویشن (گروه D)، بیشترین مصرف خوراک و افزایش وزن را در مقایسه با گروه شاهد داشتند (05/0p < ). در حالی که، مصرف خارمریم یا آویشن به تنهایی، سبب کاهش ضریب تبدیل غذایی در دوره 28-35 روزگی شد (05/0P < ) و این اثر در مورد گروه (D) مشهود­تر بود. توصیه کاربردی/ صنعتی: در نتیجه، پژوهش حاضر نشان داد که مکمل­های خارمریم و یا آویشن اثر مثبتی بر بهبود رشد جوجه­های گوشتی دارند.

Keywords [فارسی]

  •  خارمریم  آویشن  عملکرد  جوجه گوشتی

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Journal of Medicinal Herbs,
Volume 4, Issue 3 - Serial Number 3
Autumn 2013
Pages 151-147

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