Oocyte-derived growth factors and ovulation rate in sheep
نویسندگان
چکیده
منابع مشابه
Transrectal ultrasonography in diagnosing the ovulation rate in sheep
On the day of ovulation and next on day 7 after ovulation the ovaries of 20 sheep were examined using the transrectal ultrasound method. To verify the results, similar examination was made with the laparoscopic method. Depending on the stage of the sexual cycle (day 1 vs day 7) the number of Graafian follicles (∅ ≥5 mm) was determined as well as the total number of corpora lutea found in both o...
متن کاملFactors regulating ovulation rate in the ewe.
Our knowledge of ovulation rate is still very rudimentary, but that is not to say that little information is available. The literature contains a vast body of data on the subject (Cumming, 1977) but a general model, such as those that are now widely accepted for the control of the oestrous cycle (Baird & McNeilly, 1981) or of seasonal reproduction (Goodman & Karsch, 1981), is not available. The...
متن کامل: the effect of sericin levels (silk glue protein) on rate of in vitro maturation, fertilization and culture of sheep oocytes
هدف از آزمایش اول بررسی اثر سطوح مختلف سریسین [0 (control), 0.1, 0.5, 1.0, 2.5 %] افزوده شده به محیط , ivm بر cumulus cell expansion، بلوغ هسته و توسعه متوالی جنین، در گوسفندان نژاد سنجابی در فصل تولید مثلی می باشد. از سرگیری میوز به وسیله خارج شدن اولین پولار بادی اندازه گیری و هم چنین درصد رسیدن جنین های دو سلولی به مرحله کلیواژ و بلاستوسیت نیز به عنوان نشانه ای از میزان شایستگی توسعه اولیه ج...
In Vivo oocyte maturation and ovulation in females and spermiation in males of hybrid sturgeon, bester
Bester, a hybrid sturgeon (Huso huso L. females ´ Acipenser ruthenus L. males), neither spermiate nor ovulate in the captivity. Thirteen-year-old adult male and female bester were injected with LH-RHa (0.1-0.3 mg/kg B.W.) intramuscularly and spawning status of the treated fish was checked 24-48 hours later. Additionally, changes in serum levels of DHP in both the responded and the non-responded...
متن کاملIn Vivo oocyte maturation and ovulation in females and spermiation in males of hybrid sturgeon, bester
Bester, a hybrid sturgeon (Huso huso L. females ´ Acipenser ruthenus L. males), neither spermiate nor ovulate in the captivity. Thirteen-year-old adult male and female bester were injected with LH-RHa (0.1-0.3 mg/kg B.W.) intramuscularly and spawning status of the treated fish was checked 24-48 hours later. Additionally, changes in serum levels of DHP in both the responded and the non-res...
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ژورنال
عنوان ژورنال: Bioscientifica Proceedings
سال: 2019
ISSN: 2515-0227
DOI: 10.1530/biosciprocs.5.025