This study was designed to assess whether the developmental potential of bovine cumulus-oocyte complexes (COCs) could be related to the morphology of their originating ovary, providing a simple, noninvasive and objective selection criterion. Ovaries were divided into 3 categories on the basis of: A) presence of a follicle > 10 mm in diameter, B) presence of more than 10 follicles of 2 to 5 mm in diameter and no follicles > 10 mm, and C) presence of less than 10 follicles of 2 to 5 mm in diameter and no follicles > 10 mm. The COCs, isolated from ovaries of Category C, showed lower rates of maturation and blastocyst formation than those from Categories A and B. Moreover, blastocysts derived from Category C ovaries had fewer cells than those derived from the other 2 categories. It is concluded that ovarian morphology is a simple and noninvasive parameter for an effective selection of oocytes with better developmental competence.

The in vitro developmental competence of bovine oocytes can be related to the morphology of the ovary / F. Gandolfi, A. M. Luciano, S. Modina, A. Ponzini, P. Pocar, D. T. Armstrong, A. Lauria. - In: THERIOGENOLOGY. - ISSN 0093-691X. - 48:7(1997 Nov), pp. 1153-1160.

The in vitro developmental competence of bovine oocytes can be related to the morphology of the ovary

F. Gandolfi
Primo
;
A. M. Luciano
Secondo
;
S. Modina;P. Pocar;A. Lauria
Ultimo
1997-11

Abstract

This study was designed to assess whether the developmental potential of bovine cumulus-oocyte complexes (COCs) could be related to the morphology of their originating ovary, providing a simple, noninvasive and objective selection criterion. Ovaries were divided into 3 categories on the basis of: A) presence of a follicle > 10 mm in diameter, B) presence of more than 10 follicles of 2 to 5 mm in diameter and no follicles > 10 mm, and C) presence of less than 10 follicles of 2 to 5 mm in diameter and no follicles > 10 mm. The COCs, isolated from ovaries of Category C, showed lower rates of maturation and blastocyst formation than those from Categories A and B. Moreover, blastocysts derived from Category C ovaries had fewer cells than those derived from the other 2 categories. It is concluded that ovarian morphology is a simple and noninvasive parameter for an effective selection of oocytes with better developmental competence.
Settore VET/01 - Anatomia degli Animali Domestici
http://download.journals.elsevierhealth.com/pdfs/journals/0093-691X/PIIS0093691X97003488.pdf
Article (author)
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/184248
Citazioni
  • ???jsp.display-item.citation.pmc??? 4
  • Scopus 52
  • ???jsp.display-item.citation.isi??? 50
social impact