Subclinical mastitis interferes with ovulation, oocyte and granulosa cell quality in dairy cows

The objective was to evaluate the effect of mastitis by somatic cell count (SCC) on follicular growth, ovulation, oocytes and cumulus cells quality and on the concentration and size of exosomes in follicular fluid of dairy cows. In the study, crossbred cows (Bos taurus – Holstein x Bos indicus – Gir) were classified for analysis as Control (SCC400.000 cells/mL) groups. In experiment 1 (follicular dynamics), cows (n=57) were submitted to ultrasound evaluations every 24 h, from progesterone-releasing-intravaginal-device (PRID) removal (D8) until 48 h later (D10).

Source: Theriogenology - April 27, 2018 Category: Genetics & Stem Cells Authors: G. Santos, M.P. Bottino, A.P.C. Santos, L.M.S. Sim ões, J.C. Souza, M.B.D. Ferreira, J.C. da Silveira, A.C.F.C.M. Ávila, A. Bride, J.N.S. Sales Source Type: research