Three experiments were designed for the in vitro fertilization of in vivo matured oocytes
following different sperm treatments: In experiment I, spermatozoa (sperm rich fraction) were …

This study was designed 1) to determine the effectiveness of 2 in vitro maturation systems
commonly employed to produce nuclear and cytoplasmicly mature pig oocytes, 2) to assess …

The present study examined the penetrability of pig oocytes by frozen-thawed ejaculated
boar spermatozoa, prepared by the pellet method, coincubated in a modified Tris-buffered …

Bovine oocytes matured in vivo or in vitro were evaluated after sperm-oocyte incubation for
frequency of sperm penetration, frequency of male pronuclei formation, and embryonic …

Ejaculates from 3 young boars were collected on 4 occasions as a series of separate 15-ml
fractions. The contribution of different fractions of these ejaculates to observed variability in …

This study was designed to investigate the effect of sperm exposure time on the fertilization
rate and subsequent developmental capacity of bovine oocytes matured in vitro. Cumulus …

To establish a defined in vitro maturation culture system for porcine oocytes, we examined
the effects of adding cysteine (Cys) and epidermal growth factor (EGF) to the maturation …

In this study, a short coincubation time of 10min was used to determine the effect of different
sperm: oocyte ratios during in vitro fertilization (IVF), and different periods of post …

The objective of this study was to assess the development of porcine ova fertilized by
intracytoplasmic sperm injection (ICSI). Allyl trenbolone (Regumate) was used to …

In Exp. 1 pig oocytes matured in vitro were used to evaluate the fertilizability in vitro of frozen
epididymal (4 boars) and ejaculated (3 boars) spermatozoa that were preincubated in …