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2020 | 76 | 06 |
Tytuł artykułu

Doppler sonography of the corpus luteum during the oestrus cycle in dairy cows

Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Doppler ultrasound has recently emerged as one of the main innovations in cattle practice and has mainly found application in the evaluation of luteal blood perfusion (LBF). LBF has been evaluated during different phases of the oestrous cycle, but the technique is poorly standardized. The aim of the study was to evaluate visual and quantitative changes of size of corpus luteum (CL) and LBF in dairy cattle during an oestrous cycle at 2 follicular waves using colour flow mode (CFM) and power flow mode (PFM) doppler ultrasound. Ten Friesian cows were selected and synchronized. The CL was evaluated at 3/4-day intervals until the next oestrus onset. After identifying the spiral luteal artery entry at the base of the CL, multiple scans of the vertical plane at the maximum diameter of the CL from the apex to the base were recorded in B-mode, CFM and PFM for each cow and session. An Esaote Mylab vet 30 gold was employed with the following setting: pulse repetition frequency 2.1 (CFM) or 2.8 (PFM), gain 70%. The real area of CL (RACL) was calculated subtracting the area of the eventual inner cavity. The LBF was quantified off-line by means of a visual score and of an image analysis system (Digimizer 4.1). Student and Anova tests were used for statistical analysis. Data were presented as means and standard deviations. There were significant individual variations for the RACL and LBF when calculated in CFM. PFM minimized these variations, although, at day 15-16, it was also affected by individual factors (p < 0.01). The combined study of RACL and LBF during a 2-wave oestrous cycle distinguished 3 phases: a phase of CL formation (3-4 days) with LBF of 0.3 ± 0.3 cm2 on a RACL of 3.1 ± 0.9 cm2, a central phase (7-16 days) with LBF of 0.7 ± 0.4 cm2 on a RACL of 4.8 ± 0.8 cm2 and a regression phase (19-20 days) with a minimum LBF of 0.1 ± 0.1 cm2 in a CL of 3.3 ± 0.6 cm2. According to this study, there is no significant difference of LBF from 7 to 16 days of the oestrus cycle; although the RACL significantly changes in this period, the dimensional variations are too thin to be clinically appreciated. However, this study contributed to defining the values of RACL and LBF during a 2-wave oestrous cycle of dairy cattle.
Słowa kluczowe
EN
Wydawca
-
Rocznik
Tom
76
Numer
06
Opis fizyczny
p.337-340,fig.,ref.
Twórcy
autor
  • Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
  • Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
autor
  • Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
autor
  • Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
autor
  • Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
autor
  • Department of Veterinary Sciences, University of Messina, 98168 Messina, Italy
Bibliografia
  • 1. Acosta T. J., Yoshizawa N., Ohtani M., Miyamoto A.: Local changes in blood flow within the early and midcycle corpus luteum after prostaglandin F (2 alpha) injection in the cow. Biol. Reprod. 2002, 6, 651-658.
  • 2. Andrade J. P. N., Andrade F. S., Guerson Y. B., Domingues R. R., GomezLeón V. E., Cunha T. O., Jacob J. C. F., Sales J. N., Martins J. P. N., Mello M. R. B.: Early pregnancy diagnosis at 21 days post artificial insemination using corpus luteum vascular perfusion compared to corpus luteum diameter and/or echogenicity in Nelore heifers. Anim. Reprod. Sci. 2019, 209, 106-144.
  • 3. Battocchio M., Gabai G., Mollo A., Veronesi M. C., Soldano F., Bono G., Cairoli F.: Agreement between ultrasonographic classification of the CL and plasma progesterone concentration in dairy cows. Theriogenology 1999, 51, 1059-1069.
  • 4. Bhal P. S., Pugh N. D., Chui D. K., Gregory L., Walker S. M., Sha R. W.: The use of transvaginal power Doppler ultrasonography to evaluate the relationship between perifollicular vascularity and outcome in in-vitro fertilization treatment cycles. Hum. Reprod. 1999, 14, 939-945.
  • 5. Ginther O. J., Knopf L., Kastelic J. P.: Temporal associations among ovarian events in cattle during oestrous cycles with two and three follicular waves. J. Reprod. Fertil. 1989, 87, 223-230.
  • 6. Herzog K., Brockhan-Ludemann M., Kaske M., Beindorff N., Paul V., Niemann H., Bollwein H.: Luteal blood flow is a more appropriate indicator for luteal function during the bovine estrous cycle than luteal size. Theriogenology 2010, 73, 691-697.
  • 7. Kanazawa T., Seki M., Ishiyama K., Araseki M., Izaike Y., Takahashi T.: Administration of gonadotropin-releasing hormone agonist on Day 5 increases luteal blood flow and improves pregnancy prediction accuracy on Day 14 in recipient Holstein cows. J. Reprod. Dev. 2017, 63, 389-399.
  • 8. Kanazawa T., Seki M., Ishiyama K., Kubo T., Kaneda Y., Sakaguchi M., Izaike Y., Takahashi T.: Pregnancy prediction on the day of embryo transfer (Day 7) and Day 14 by measuring luteal blood flow in dairy cows. Theriogenology 2016, 30, 1-9.
  • 9. Kastelic J. P., Pierson R. A., Ginther O. J.: Ultrasonic morphology of corpora lutea and central luteal cavities during the estrous cycle and early pregnancy in heifers. Theriogenology 1990, 34, 487-498.
  • 10. Miyamoto A., Shirasuna K., Wijayagunawardane M. P., Watanabe S., Hayashi M., Yamamoto D., Matsui M., Acosta T. J.: Blood flow: a key regulatory component of corpus luteum function in the cow. Dom. Anim. Endocrinol. 2005, 29, 329-339.
  • 11. Pierson R. A., Ginther O. J.: Ultrasonography of the bovine ovary. Theriogenology 1984, 21, 495-504.
  • 12. Pieterse M. C., Taverne M. A., Kruip T. A., Willemse A. H.: Detection of corpora lutea and follicles in cows: a comparison of transvaginal ultrasonography and rectal palpation. Vet. Rec. 1990, 126, 552-554.
  • 13. Pugliesi G., Dalmaso de Melo G., Silva J. B., Carvalhêdo A. S., Lopes E., de Siqueira Filho E., Silva L. A., Binelli M.: Use of color-Doppler ultrasonography for selection of recipients in timed-embryo transfer programs in beef cattle. Theriogenology 2019, 135, 73-79.
  • 14. Pugliesi G., Oliveria M. L., Scolari S. C., Lopes E., Pinaffi F. V., Miagawa B. T., Paiva Y. N., Maio J. R., Nogueira G. P., Binelli M.: Corpus luteum development and function after supplementation of long-acting progesterone during the early luteal phase in beef cattle. Reprod. Domest. Anim. 2014, 49, 85-91.
  • 15. Ribadu A. Y., Ward W. R., Dobson H.: Comparative evaluation of ovarian structures in cattle by palpation per rectum, ultrasonography and plasma progesterone concentration. Vet. Rec. 1994, 135, 452-457.
  • 16. Shirasuna K., Asaoka H., Acosta T. J., Wijayagunawardane M. P., Matsui M., Ohtani M., Miyamoto A.: Endothelin-1 within the corpus luteum during spontaneous luteolysis in the cow: local interaction with prostaglandin F2alpha and angiotensin II. J. Cardiovasc. Pharmacol. 2004, 44 Suppl 1, 252-255.
  • 17. Tamboora D., Kupin D., Sumande J.: Superovulation in cows: a relationship between progesterone secretion before ovulation and the quality of embryos. Anim. Reprod. Sci. 1985, 8, 327-334.
  • 18. Tom J. W., Pierson R. A., Adams G. P.: Quantitative echotexture analysis of bovine corpora lutea. Theriogenology 1998, 49, 1345-1352.
  • 19. Veronesi M. C., Gabai G., Battocchio M., Mollo A., Soldano F., Bono G., Cairoli F.: Ultrasonographic appearance of tissue is a better indicator of CL function than CL diameter measurement in dairy cows. Theriogenology 2002, 58, 61-68
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.agro-b97d0f33-3f77-4885-9b75-bbbfb79c810b
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