| Efficacy of PGF(2α) on Pre-ovulatory Follicle and Corpus Luteum Blood Flow. | |
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MedLine Citation:
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PMID: 21507081 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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The aim of this study was to evaluate the effect of cloprostenol administration on the blood flow of pre-ovulatory follicle (PF) and corpus luteum (CL), progesterone secretion and pregnancy outcome in buffaloes subjected to AI. The trial was performed on 75 Italian buffaloes at 182 ± 8 days in milk. Synchronized animals were randomly divided into two groups on the day of oestrus: Group T (n = 37) received a 0.524 mg intramuscular injection of cloprostenol and Group C (n = 38) received saline. Ultrasound examinations of the ovaries were performed 5 h after AI on the PF and 10 and 20 days after AI on the CL. Resistive (RI) and pulsatily index (PI) were calculated by colour-Doppler mode in each examination. Blood samples were collected on days 10, 20 and 25 after AI for progesterone assay and 25 days after AI, ultrasonography was performed to assess pregnancy, which was confirmed on day 45. Subjects pregnant on day 25 but not on day 45 were considered to have undergone late embryonic mortality (LEM). Statistical analysis was performed by anova. No differences were found in PF dimensions, CL size and blood flow on day 10 and 20 after AI between treated and control groups. Pre-ovulatory follicle area was higher in buffaloes that resulted pregnant on day 25 after AI compared to those that were non-pregnant (2.13 vs 1.66 cm in pregnant and non-pregnant buffaloes, respectively), while non-pregnant buffaloes showed higher values of RI (0.49 vs 0.30; p < 0.05) and PI (1.0 vs 0.37; p = 0.07) compared to pregnant subjects. Treatment by cloprostenol did not influence pregnancy rate both on day 25 (31/75; 41.3%) and 45 (27/75; 36.0%), progesterone levels and incidence of LEM (4/31; 12.9%). In conclusion, cloprostenol administration at the time of AI does not seem to affect PF and CL blood flow. |
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Authors:
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G Neglia; D Vecchio; M Russo; R Di Palo; C Pacelli; A Comin; B Gasparrini; G Campanile |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-4-20 |
Journal Detail:
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Title: Reproduction in domestic animals = Zuchthygiene Volume: - ISSN: 1439-0531 ISO Abbreviation: - Publication Date: 2011 Apr |
Date Detail:
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Created Date: 2011-4-21 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9015668 Medline TA: Reprod Domest Anim Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Copyright Information:
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© 2011 Blackwell Verlag GmbH. |
Affiliation:
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DISCIZIA, Faculty of Veterinary Medicine, 'Federico II' University, Naples, Italy Dipartimento di Scienze Cliniche Veterinarie, Faculty of Veterinary Medicine, 'Federico II' University, Naples, Italy Dipartimento di Scienze delle Produzioni Animali, Università degli Studi della Basilicata Campus di Macchia Romana, Potenza, Italy DSA, Udine University, Udine, Italy. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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