dc.contributor | Universidade Estadual de Londrina (UEL) | |
dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.contributor | Universidade de São Paulo (USP) | |
dc.contributor | Embryomass Inc | |
dc.date.accessioned | 2014-05-20T13:15:13Z | |
dc.date.available | 2014-05-20T13:15:13Z | |
dc.date.created | 2014-05-20T13:15:13Z | |
dc.date.issued | 2003-03-01 | |
dc.identifier | Theriogenology. New York: Elsevier B.V., v. 59, n. 5-6, p. 1435-1440, 2003. | |
dc.identifier | 0093-691X | |
dc.identifier | http://hdl.handle.net/11449/2429 | |
dc.identifier | 10.1016/S0093-691X(02)01188-3 | |
dc.identifier | WOS:000180645500032 | |
dc.identifier | 2251116139872527 | |
dc.description.abstract | A new device was developed to hold linear transducers for transvaginal follicle aspiration. Efficacy of follicle aspiration was compared using a linear 6 MHz and a convex 5 MHz transducer. Fifty-five cows were submitted to follicle aspiration at random days of the estrous cycle. Aspirations were conducted with linear (n = 28) and convex (n = 38) transducers with 18 G needles at a negative pressure corresponding to 13 ml H2O/min. A greater number of follicles were aspirated using convex than to linear probe (12.4 versus 7.8, respectively, P < 0.05). Mean number of oocytes and recovery rates were similar for convex (5.4 and 48.6%) and linear (4.6 and 59.3%) transducers. Limited space between the linear transducer and needle guide restricted access to some portions of the ovary, reducing the number of follicles aspirated using a linear transducer. The newly developed adaptor allowed greater stability, holding the ovaries firmly against the linear transducer. This diminished mobility permitted a similar number of oocytes to be recovered with both transducers. In conclusion, this new adaptor provided a low cost alternative for routine follicle aspiration and oocyte recovery in cattle. (C) 2002 Elsevier B.V. All rights reserved. | |
dc.language | eng | |
dc.publisher | Elsevier B.V. | |
dc.relation | Theriogenology | |
dc.relation | 2.136 | |
dc.rights | Acesso restrito | |
dc.source | Web of Science | |
dc.subject | ultrasound | |
dc.subject | linear transducer | |
dc.subject | oocytes | |
dc.title | Efficacy of linear and convex transducers for ultrasound-guided transvaginal follicle aspiration | |
dc.type | Artículos de revistas | |