کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
2394704 1551563 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Factors Affecting Recipients' Pregnancy, Pregnancy Loss, and Foaling Rates in a Commercial Equine Embryo Transfer Program
ترجمه فارسی عنوان
عوامل موثر بر بارداری، افت حاملگی و میزان Foaling در برنامه تجاری انتقال جنین اسب
کلمات کلیدی
انتقال جنین؛ میزان بارداری؛ سرعت Foaling؛ انتخاب گیرنده
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم دامی و جانورشناسی
چکیده انگلیسی


• We transferred 351 equine embryos in synchronized selected recipients.
• We analyzed donor's, embryo's, and recipient's factors that may affect pregnancies.
• Embryo quality, diameter and age, and donor's age affected pregnancies.

During 11 breeding seasons, 351 7- to 10-day-old horse embryos were nonsurgically transferred into recipients that ovulated between 3 and 10 days earlier. Pregnancy rates at 14 and 40 days and foaling rates were 77.8% (273/351), 69.2% (243/351), and 64.4% (226/351), respectively. Pregnancy loss between 14 and 40 days was 11% and between 40 days and delivery was 7%. The transfer of quality grade 3 to 4 embryos resulted in a significantly lower pregnancy rate at 14 days compared with the transfer of grade 1 to 2 embryos (46.2% vs. 79%; P < .05). Eight-day-old embryos resulted in significantly lower pregnancy losses than day 9 or 10 embryos, as occurred for embryos between 400 and 1200 μm compared with embryos <400 μm. Embryos recovered from mares >20 years resulted in a significantly higher pregnancy loss rate than those recovered from younger mares. The same happened for embryos coming from mares affected by reproductive pathologies compared with healthy mares performing sport activity. None of the evaluated parameters influenced recipients' foaling rate significantly.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Equine Veterinary Science - Volume 37, February 2016, Pages 17–23
نویسندگان
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