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اثر تزریق سطوح مختلف ویتامین A قبل از جفتگیری بر عملکرد تولیدمثلی میشهای افشاری | ||
| علوم دامی ایران | ||
| دوره 56، شماره 4، دی 1404، صفحه 959-970 اصل مقاله (1.37 M) | ||
| نوع مقاله: مقاله پژوهشی | ||
| شناسه دیجیتال (DOI): 10.22059/ijas.2025.396853.654082 | ||
| نویسندگان | ||
| فرشته عسگری1؛ محمد شمس الهی* 2؛ فرشید فتاح نیا1؛ محمد اکبری قرائی2؛ شهناز یوسفی زاده3 | ||
| 1گروه علوم دامی، دانشکده کشاورزی، دانشگاه ایلام، ایلام، ایران. | ||
| 2گروه علوم دامی، دانشکده کشاورزی، دانشگاه ایلام، ایلام، ایران | ||
| 3گروه علوم آزمایشگاهی و بالینی، دانشکده پیراپزشکی، دانشگاه ایلام، ایلام، ایران | ||
| چکیده | ||
| پژوهش حاضر با هدف مطالعه اثر تزریق سطوح مختلف ویتامین A قبل از جفتگیری بر فراسنجههای پلاسما، وضعیت آنتیاکسیدانی و عملکرد تولیدمثلی میشهای افشاری انجام شد. در این آزمایش 75 رأس میش بالغ افشاری (سن 9/0 ± 6/3 سال و وزن بدن 2/4 ± 5/43 کیلوگرم) انتخاب و بر اساس وزن بدن و سن به 3 گروه تقریبا یکسان 25 راسی تقسیم و به طور تصادفی به تیمارهای آزمایشی اختصاص داده شدند. تیمارهای آزمایشی شامل 1- میشهای گروه شاهد (بدون تزریق ویتامین A)، 2- میشهای دریافتکننده 25/0 میلیلیتر ویتامینA و 3- میشهای دریافتکننده 5/0 میلیلیتر ویتامین A بودند. محلول ویتامین A در روز کارگذاری و خروج اسفنج به صورت درون ماهیچهای تزریق شد. نمره وضعیت بدنی، فراسنجههای پلاسما و وضعیت آنتیاکسیدانی در شروع آزمایش، روز خروج اسفنج و روز فحلی بررسی شد. نتایج نشان داد که تزریق 5/0 میلیلیتر ویتامین A در قبل از جفتگیری باعث افزایش غلظت گلوکز در روز فحلی نسبت به تیمار شاهد و تیمار 25/0 میلیلیتر ویتامین A شد (05/0>P). غلظت مالوندیآلدئید در روز خروج اسفنج و روز فحلی با تزریق 25/0 و 5/0 میلیلیتر ویتامین A به طور معنیداری نسبت به تیمار شاهد کاهش یافت (05/0>P). نرخ برهزایی، نرخ باروری و نرخ دوقلوزایی تحت تاثیر سطوح مختلف ویتامین A قبل از جفتگیری قرار نگرفت (05/0<P). به طور کلی، اگرچه تزریق ویتامین A قبل از جفتگیری باعث بهبود ظرفیت آنتیاکسدانی پلاسما شد اما تاثیری معنیداری بر عملکرد تولیدمثلی میشهای افشاری نداشت. | ||
| کلیدواژهها | ||
| میش افشاری؛ جفتگیری؛ ویتامین A؛ وضعیت آنتیاکسیدانی؛ عملکرد تولیدمثلی | ||
| عنوان مقاله [English] | ||
| The effects of replacement of forage source with date palm leaves based on undigested neutral detergent fiber on performance of feedlot lambs Effect of different levels of vitamin A injection before mating on reproductive performance of Afshari ewes | ||
| نویسندگان [English] | ||
| Fereshteh Asgari1؛ mohammad shamsollahi2؛ farshid fatahnia1؛ mohammad Akbari Qaraei2؛ Shahnaz Yousefizadeh3 | ||
| 1Department of Animal Science, Faculty of Agriculture, Ilam University, Ilam, Iran | ||
| 2Department of Animal Science, Faculty of Agriculture, Ilam University, Ilam, Iran. | ||
| 3Department of Laboratory and Clinical Science, Faculty of Para Veterinary, Ilam University, Ilam, Iran. | ||
| چکیده [English] | ||
| The present research aimed to study the effect of different levels of vitamin A injection before mating on plasma parameters, antioxidant status and reproductive performance of Afshari ewes. For this purpose, 75 adult Afshari ewes (age = 3.6±0.9 years and BW = 43.5±4.2 kg) were randomly divided into 3 groups (25 ewes/group). The experimental treatments included 1- control ewes (without vitamin A injection), 2 - ewes receiving 0.25 ml of vitamin A and 3- ewes receiving 0.5 ml of vitamin A. Vitamin A solution was injected intramuscularly on the day of sponge insertion and sponge removal. Body condition score (BCS), plasma metabolites and antioxidant status were measured at the beginning of the experiment, the day of sponge removal and the day of estrus. Results showed that injection of 0.5 ml of vitamin A before mating increased glucose concentration on the day of estrus compared to other treatments (P<0.05). Injection of 0.25 or 0.5 ml of vitamin A before mating reduced plasma malondialdehyde concentration and increased antioxidant capacity compared to the control treatment (P<0.05). Lambing rate, fertility rate and twinning rate did not influence by 0.25 and 0.5 ml of vitamin A injection before mating (P< 0.05). In general, injection of different level of vitamin A before mating, despite improving antioxidant capacity, had no significant effect on reproductive performance of Afshari ewes. | ||
| کلیدواژهها [English] | ||
| Afshari ewes, Mating, Vitamin A, Antioxidant status, Reproductive performance | ||
| مراجع | ||
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