اثر عصارة سیر بر رشد، تغذیه و ترکیب شیمیایی لاشة کفال ماهی (Mugil cephalus)

نوع مقاله: مقاله پژوهشی

نویسندگان

1 استادیار گروه شیلات، دانشکدة علوم دریایی، دانشگاه دریانوردی و علوم دریایی چابهار، چابهار، ایران

2 کارشناس گروه شیلات، دانشکدة علوم دریایی، دانشگاه دریانوردی و علوم دریایی چابهار، چابهار، ایران

چکیده

در این تحقیق، اثر عصارة سیر بر شاخص‌های رشد (افزایش وزن بدن، نرخ رشد ویژه، فاکتور وضعیت، طول نهایی و وزن نهایی)، تغذیه (ضریب تبدیل غذا، راندمان مصرف پروتئین و راندمان تولید پروتئین) و ترکیب بدن (میزان پروتئین، چربی، رطوبت و خاکستر) در لارو کفال‌ماهیان در 4 تیمار مختلف (سه تکرار در هر تیمار) به مدت 30 روز بررسی شد. به این منظور، لارو کفال‌ماهیان با میانگین وزنی g 01/0±45/0 با جیرة غذایی حاوی  5/0، 1 و 3 درصد عصارة سیر تغذیه شدند و تیمار شاهد با جیرة غذایی فاقد عصارة سیر تغذیه شد. نتایج نشان داد که در پایان آزمایش، بالاترین وزن نهایی g 05/0±78/0، طول نهایی cm 14/0±04/4، بیش‌ترین میزان افزایش وزن % 19/17±13/85، نرخ رشد ویژه % 31/0±93/1، بالاترین نرخ تولید پروتئین % 58/67±05/415، کم‌ترین میزان چربی لاشه % 01/0±37/3 و بیش‌ترین میزان پروتئین لاشه % 03/0±99/20 در تیمار حاوی 3 درصد عصارة سیر مشاهده شد که با تیمار شاهد تفاوت معنی‌داری داشت (05/0>P). در مجموع، بر اساس نتایج این تحقیق، افزودن 3 درصد عصارة سیر به جیرة غذایی لارو کفال‌ماهیان به منظور بهبود شاخص‌های رشد، تغذیه و کیفیت لاشه در این ماهیان پیشنهاد می‌شود.
 

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

Effect of garlic extract on growth, feed and carcass composition of Mugil cephalus

نویسندگان [English]

  • Paria Akbari 1
  • Kolsoom Arbabi 2
  • Maryam Blochzehi 2
  • Hamide Jamishzehi 2
  • Soheila Tahmasebi 2
1 Assistant Proff of Fisheries Group, Marine Sciences Faculty, Chabahar Maritime University, Chabahar, Iran
2 BSc Student of Fisheries Group, Marine Sciences Faculty, Chabahar Maritime University, Chabahar, Iran
چکیده [English]

In this study, the effect of garlic extract on the growth performances ( body weight increase (BWI), specific growth rate (SGR), condition factor (CF), final length (FL) and weight (FW)), feed indices (feed conversion rate (FCR), protein efficiency ratio (PER), protein production ratio (PPR)) and body composition (protein, fat, moisture and ash) of Mugil cephalus larvae were studied in four treatments (three replication for each treatment) for 30 days. For this purpose, Mugil cephalus larvae (with average weight of 0.45±0.01g) were fed with three diets containing 0.5,1 and 3% garlic extract and control group was fed with diet  artificial food without garlic extract. The results showed that at the end of experiment, the highest FW (0.78±0.05g), FL (4.04±0.14 cm), the highest BWI (85.13±17.19%), SGR (1.93±0.31%), PPR (20.99±0.03%), the lowest fat level of body composition (3.37±0.01%) and the highest protein level of body composition (20, 99±0.03%) were observed in the diet containing 3% garlic extract, and in all of these parameters, this treatment (3%garlic extract) showed a significant difference compared with control treatment (P<0.05). Finally, the present results suggest that diet containing 3% garlic extract could improve growth, feed performances and carcass quality of Mugil cephalus larvae.
 

کلیدواژه‌ها [English]

  • Mugil cephalus
  • garlic extract
  • Carcass Composition
  • protein production
  • Growth Promoter

 

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