کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8405030 | 1544743 | 2013 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Prediction of the optimal time for insemination using frozen-thawed semen in a multi-sire insemination trial in bitches
ترجمه فارسی عنوان
پیش بینی زمان مطلوب برای تلقیح با استفاده از مایع منجمد-یخ زده در یک آزمایش آزمایشگاهی چند سوری در سگ
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کلمات کلیدی
سگ، تلقیح داخل رحمی، مایع منجمد، پدر و مادر، تعیین جنسیت،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم دامی و جانورشناسی
چکیده انگلیسی
The aims of the study were to determine which of Days 5, 6 or 7 after the blood plasma progesterone concentration (PPC) of bitches first reached 6-9Â nmol/L (Day 0) yield the highest fertility and whether day of insemination affects the gender ratio of conceptuses. Six bitches were inseminated on Days 5 and 6 and 6 on Days 6 and 7. Ten million progressively motile frozen-thawed sperm from each of 5 dogs were pooled for the first insemination. The same number of sperm from 5 other dogs were pooled for the second insemination. Only one batch of semen from each dog was used on all bitches, which largely prevented any effect of male and semen. Twenty-three autosomal microsatellites and the amelogenin gene were used to determine the paternity and gender of the conceptuses. Pregnancy rate was 100%. Out of 103 ovulations 66 conceptuses were conceived (conception rate: 64%). The proportion of available oocytes fertilised was 0.11, 0.56, and 0.27 for Days 5, 6, and 7, respectively. The odds of fertilisation was 16.7 and 4.2 times higher from insemination on Day 6 compared to Day 5 (PÂ <Â 0.001) and Day 7 (PÂ =Â 0.013), respectively. The numbers of male- and female conceptuses were equal (33 each) and gender was independent of insemination day (PÂ =Â 0.18). This study suggests that intrauterine insemination of bitches should best be done 6 days after PPC first reaches a value between 6 and 9Â nmol/L with a second insemination one day later.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Animal Reproduction Science - Volume 142, Issues 3â4, 30 November 2013, Pages 191-197
Journal: Animal Reproduction Science - Volume 142, Issues 3â4, 30 November 2013, Pages 191-197
نویسندگان
D. Steckler, J.O. Nöthling, C. Harper,