Changes in Serum Progesterone Levels and Subsequent Fertility in Cows after Artificial Insemination
نویسندگان
چکیده
منابع مشابه
Norgestomet implants synchronize estrus and enhance fertility in beef heifers subsequent to a timed artificial insemination.
Three trials involving 128 heifers were conducted to determine whether norgestomet implants administered during the mid- and late luteal phases after breeding could be used to synchronize a second estrus in nonpregnant, inseminated heifers without adversely affecting pregnancy in pregnant heifers. All heifers were initially synchronized with Syncro-Mate B and artificially inseminated 47 h after...
متن کاملEffect of progesterone concentration and duration of proestrus on fertility in beef cattle after fixed-time artificial insemination.
The objective was to determine the effect of plasma progesterone concentration and the duration of proestrus during growth of the ovulatory follicle on fertility in beef cattle. Heifers (N = 61) and postpartum cows (N = 79) were assigned randomly to four groups in a two-by-two design involving luteal-phase versus subluteal-phase plasma progesterone concentrations and normal versus short proestr...
متن کاملSerum progesterone profiles of zebu cattle (Bos indicus) in relationship to conception and repeat breeding after artificial insemination.
Sixty-four zebu cows, comprised mainly of Bunaji cattle aged between 3 and 7 years old, were involved in an intensive artificial insemination programme. The study was conducted during the breeding period (May-October), and cows were inseminated with freshly prepared Friesian semen when they stood to be mounted by the vasectomised bull or herdmates. Fertility was measured by serum progesterone (...
متن کاملcomparison of blood flow velocity changes in posterior cerebral artery measured with transcranial doppler sonography in migraineurs with visual aura and normal persons after photostimulation
چکیده ندارد.
15 صفحه اولEffect of estradiol and cloprostenol combination therapy on expulsion of mummified fetus and subsequent fertility in four crossbred cows
Four crossbred cows with mummified fetus were utilized for the study. The cows were subjected to gynecological examination and based on the findings the cases were diagnosed as mummified fetus. The cows were treated with 2 mg estradiol valerate and 500 µg cloprostenol and were examined every 12 hr after 24 hr of the treatment for cervical dilatation and other signs related to fetal expulsion. T...
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ژورنال
عنوان ژورنال: Journal of the Japan Veterinary Medical Association
سال: 1985
ISSN: 0446-6454,2186-0211
DOI: 10.12935/jvma1951.38.506