Evaluation of cervical and uterine size, at 4 weeks postpartum, as a predictor of subsequent fertility in Jersey cattle
| العنوان: | Evaluation of cervical and uterine size, at 4 weeks postpartum, as a predictor of subsequent fertility in Jersey cattle |
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| المؤلفون: | R. Molina-Coto, Pedro Melendez, Scott E. Poock, S.G. Moore, Matthew C. Lucy, Monica O. Caldeira, Lauren M. Mayo |
| المصدر: | Reproduction in Domestic Animals. 55:915-921 |
| بيانات النشر: | Wiley, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | medicine.medical_specialty, Jersey cattle, media_common.quotation_subject, Uterus, Ice calving, Fertility, Cervix Uteri, 03 medical and health sciences, 0302 clinical medicine, Endocrinology, Lactation, Animals, Medicine, Cervix, Progesterone, reproductive and urinary physiology, Ultrasonography, media_common, Gynecology, 030219 obstetrics & reproductive medicine, business.industry, Postpartum Period, 0402 animal and dairy science, Uterine horns, 04 agricultural and veterinary sciences, 040201 dairy & animal science, medicine.anatomical_structure, Cattle, Female, Animal Science and Zoology, business, Corpus luteum, Biotechnology |
| الوصف: | Uterine and cervical size of Holstein dairy cows is reported among reasons for a decline in dairy cow fertility. Therefore, the objectives of this study were to (a) determine whether size of the cervix and uterus at 4 weeks postpartum impacted subsequent fertility at first service in Jersey cattle, (b) determine whether progesterone level at 4 weeks postpartum impacted cyclicity and (c) the association of the presence of corpus luteum and uterus and cervix size. Body condition scores at calving, presence of postpartum diseases, parity number and milk weights were taken from lactating Jersey dairy cows (N = 147) for 28 days postpartum. During the fourth week postpartum, a blood sample was obtained for progesterone concentration, and transrectal ultrasonography was performed by a high-resolution ultrasound machine to determine cervical and uterine horn diameter, as well as ovarian structures measurements. Correcting for parity number, BCS at calving, presence of diseases and milk yield, cows with a cervix >2.54 ± 0.63 cm and uterine horn >2.25 ± 0.59 cm were less likely to become pregnant at first service (p = .04 and p = .003, respectively). The cows with larger cervix had a trend to be less likely to have a corpus luteum present at the 4th week of lactation (p = .067). Cows with larger uterine horn size were less likely to have a corpus luteum present at the 4th week of lactation (p = .015). It is concluded that a larger cervix and/or uterus during the postpartum was associated negatively with fertility and cyclicity in Jersey cows. |
| تدمد: | 1439-0531 0936-6768 |
| الوصول الحر: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9b1252f61742e9054dc41316010e1b8Test https://doi.org/10.1111/rda.13702Test |
| حقوق: | CLOSED |
| رقم الانضمام: | edsair.doi.dedup.....c9b1252f61742e9054dc41316010e1b8 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 14390531 09366768 |
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