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Influence of corpus luteum and ovarian volume on the number and quality of bovine oocytes
Author(s) -
PenitenteFilho Jurandy Mauro,
Jimenez Carolina Rodrigues,
Zolini Adriana Moreira,
Carrascal Erly,
Azevedo Jovana Luiza,
Silveira Camila Oliveira,
Oliveira Fabrício Albani,
Torres Ciro Alexandre Alves
Publication year - 2015
Publication title -
animal science journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.606
H-Index - 38
eISSN - 1740-0929
pISSN - 1344-3941
DOI - 10.1111/asj.12261
Subject(s) - corpus luteum , andrology , embryo , ovary , volume (thermodynamics) , biology , endocrinology , medicine , physics , microbiology and biotechnology , quantum mechanics
In order to evaluate whether ovarian volume, presence and diameter of the corpus luteum ( CL ) have effects on the number and quality of bovine recovered oocytes, 110 ovaries were obtained from the slaughterhouse. C umulus oocytes complex were aspirated and evaluated under stereomicroscope. Oocytes were counted and classified according to their quality (Grades I , II , III and IV ). Ovarian volume was weakly correlated to the number of good quality oocytes ( P < 0.05). Ovaries with CL showed greater numbers of good quality oocytes than ovaries without CL ( P < 0.05). Further, presence of CL and its diameter positively influenced the probability of recovering good quality oocytes ( P < 0.05). In conclusion, ovarian volume is not a good parameter itself to predict important ovarian characteristics; moreover, analysis of CL , its presence and diameter, may be a good tool to improve efficiency on in vitro embryo production programs.