آثار سطوح متفاوت رگولین به همراه جیره‌های متفاوت فلاشینگ بر عملکرد تولیدمثلی میش‌های نژاد بلوچی

نوع مقاله : مقاله کامل

نویسندگان

1 آموزشکده کشاورزی سرایان ، دانشگاه بیرجند، بیرجند، ایران

2 گروه علوم دامی، دانشکده علوم دامی و شیلات، دانشگاه علوم کشاورزی و منابع طبیعی ساری، مازندران، ایران

3 آموزشکده کشاورزی ، دانشگاه بیرجند، بیرجند، ایران

چکیده

این آزمایش به منظور بررسی اثرات سطوح متفاوت رگولین به همراه جیره‌‌های متفاوت فلاشینگ بر عملکرد تولیدمثلی میش‌های بلوچی در قالب طرح کاملا" تصادفی با 5 تیمار 8 رأسی انجام شد. تیمارهای آزمایشی به ترتیب شامل: گروه 1- (جیره پایه بدون رگولین و جیره فلاشینگ)، گروه2- (سطح 1 رگولین+ جیره فلاشینگ حاوی 4 درصد روغن ماهی)، گروه 3- (سطح 2 رگولین+ جیره فلاشینگ حاوی 4 درصد روغن سویا‌)، گروه4- (سطح 1 رگولین+ جیره فلاشینگ حاوی 4 درصد روغن سویا‌)، گروه 5- (سطح 2 رگولین + جیره فلاشینگ حاوی 4 درصد روغن ماهی)، بودند. طول دوره مصرف جیره فلاشینگ 25 روز در نظر شد(10 روز قبل از قوچ‌اندازی تا 15 بعد از قوچ اندازی). در فاصله بین روزهای 70 تا 90 روز بعد از زایش به محض مشاهده رفتار فحلی، میش‌‌ها، عملیات قوچ‌اندازی انجام شد. آزمایش اولتراسونوگرافی جهت بررسی تعداد فولیکول‌های گراف و جهت تشخیص آبستنی، 34 روز بعد از قوچ‌اندازی انجام شد. بعد از زایش نیز فراسنجه‌‌های تولیدمثلی نظیر نرخ بره‌‌زایی (بره‌های متولد شده به میش‌های زایمان کرده) و دوقلوزایی (تعداد میش‌های دوقلوزا به میش‌ها زایمان کرده) و مرده‌زایی(بره‌های مرده متولد شده به میش‌های زایمان کرده) محاسبه شد. نتایج مربوط به نرخ تخمک‌ریزی، نرخ آبستنی، نرخ مرده‌زایی و نرخ بره‌‌زایی بین گروه‌‌های مختلف اخـتلاف معنـی‌‌داری مشاهده شد ( 05/0>P) بیشترین نرخ تخمک‌ریزی (100درصد)، نرخ آبستنی (100درصد) و نرخ بره‌‌زایی (125 درصد) و کمترین نرخ مرده‌زایی (صفردرصد) مربوط به گروهی بود که دو سطح ملاتونین و جیره فلاشینگ حاوی 4 درصد روغن سویا مصرف کرده بودند و با گروه شاهد اخـتلاف معنـی‌‌داری داشتند ( 05/0>P)نتایج فاصله قوچ‌اندازی تا فحلی بین تیمارها اختلاف معنی‌‌داری نداشت. نتایج مربوط به میانگین تعداد فولیکـول‌هـای گراف در تخمــدان مــیش‌‌هــا در زمان فحلی و تعداد جسم زرد 10 روز بعد از قوچ‌اندازی نشان داد که استفاده از ملاتـونین در خـارج از فصـل تولیدمثل باعـث افزایش تعداد فولیکول‌‌های گراف در زمان فحلی گردید و با گروه شاهد (فاقد ملاتونین) اختلاف معنی‌داری داشت ( 05/0>P).

کلیدواژه‌ها


عنوان مقاله [English]

Effects of Different Levels of Regolin with Different Flushing Diets on Reproductive Performance of Baluchi Ewes

نویسندگان [English]

  • M. Didarkhah 1
  • E. Dirandeh 2
  • F. Jamili 3
1 Faculty of Agriculture Sarayan, University of Birjand, Birjand, Iran
2 Department of Animal Science, Sari Agricultural Sciences and Natural Resources University, Sari, Mazandaran, Iran
3 Faculty of Agriculture Sarayan, University of Birjand, Birjand, Iran
چکیده [English]

This experiment was conducted to investigate the effects of different levels of regolin with different flushing diets on reproductive performance of the Baluchi ewes in a completely randomized design with 5 treatments of 8 treatments.  The experimental treatments consisted of: 1- group (non-vegetable diet and flushing), group 2 (regolin level 1 + flushing diet containing 4% fish oil), group 3 (level 2 regolin + flashing diet containing 4% soybean oil) ), Group 4 (level 1 regolin + Flushing diet containing 4% soybean oil), group 5 (level 2 regolin + Flushing diet containing 4% fish oil).  The duration of the flushing ration was considered to be 25 days (10 days before rape and 15 days after rape). In the interval between 70 and 90 days after birth, once the euthanasia was observed, the ewes, the snoring were carried out. An ultrasonographic study was conducted to determine the number of graph follicles and to diagnose pregnancy 34 days after rash. After birth, reproductive parameters such as breeding rates (lambs born to ewes fed) and twin breeding (the number of double-breeding ewes to the ewes) and stillbirth (dead lambs born to the ewes of childbirth) Calculated). The results of oocyte rate, conception rate, mortality rate and lactation rate were significantly different (P<0.05). The highest oocyte rate (100%), Pregnancy rate (100%) and rate Lambsley (125%) and the lowest immobilization rate (%) were related to the group that had two levels of melatonin and Flushing diet containing 4% soy oil and had a significant difference with the control group (P<0.05). There was no significant difference between furrowing distance and estrus between treatments. The results of mean number of graph follicles in ovaries in the time of oestrus and the number of corpus luteum 10 days after rabies showed that the use of melatonin outside the reproductive season increased the number of graph follicles during estrus, and with the group Control (no melatonin) had a significant difference (P<0.05).

کلیدواژه‌ها [English]

  • bentonite
  • wheat starch
  • Performance
  • broiler
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