کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8403827 | 1544682 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Anti-Müllerian hormone and Oestradiol as markers of future reproductive success in juvenile gilts
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
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چکیده انگلیسی
There is a need for an early marker for reproductive success in gilts as the traditional process for selecting breeding females is inefficient. There is evidence that circulating anti-Müllerian hormone (AMH) is indicative of ovarian reserve, antral follicle populations, gonadotropin responsiveness and fertility in various species other than the pig. Additionally, oestradiol (E2) has been shown to mark antral follicle populations in cattle and pregnancy outcomes in women, after gonadotropin treatment. The aims of this study were to determine whether 1) serum levels of AMH or E2, prior to or after gonadotropin injection at 60, 80 or 100 days of age, and 2) hormonal changes in response to gonadotropin stimulation (i.e. declining, plateauing or increasing hormone levels), are associated with future reproductive success in juvenile gilts. Serum samples were obtained at 0, 2 and 4 days after injection and mating and litter data were collected until parity three. Results showed that, regardless of age group and parity, Day 0 E2 levels were positively associated with the probability of stillbirth (Pâ¯=â¯0.035) and E2 levels on Day 0 (Pâ¯=â¯0.032), Day 2 (Pâ¯=â¯0.045) and Day 4 (Pâ¯=â¯0.019) were negatively associated with the number of piglets born alive. Further, both a single measurement of serum AMH levels at Day 2 (Pâ¯=â¯0.048) and the AMH response type were associated with gestation length (Pâ¯=â¯0.012). These findings suggest that serum AMH and E2 levels can be used to inform the selection of gilts for the breeding herd.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Animal Reproduction Science - Volume 195, August 2018, Pages 197-206
Journal: Animal Reproduction Science - Volume 195, August 2018, Pages 197-206
نویسندگان
Alicia Steel, Rebecca Z. Athorn, Christopher G. Grupen,