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The work was carried out on a total of 26 male dogs that on the basis of clinical examination, prostate ultrasound and prostate biopsy, were divided prospectively into four groups: (1) normal dogs (control group; n = 8); (2) dogs with benign prostatic hyperplasia (group BPH; n = 8); (3...
Dairy cows expend great amounts of energy during the lactation peak to cope with milk production. A state of negative energy balance (NEB) was suggested as a cause for the suboptimal fertility observed during this period, via an interaction with ovarian function. The objective of this ...
Mutant mouse lines are unique models with an enormous scientific potential. Cryopreservation of preimplantation embryos or of spermatozoa is a common approach to save those lines. The breeding of a line can be discontinued if sufficient specimens have been cryopreserved. Prerequisites ...
Estradiol decreases the pulse frequency of LH during the nonbreeding season through dopaminergic neurons that results in anestrus in the ewe. Long-term administration of sulpiride, a dopamine antagonist, induced ovulation in seasonally anestrus mares. Accordingly, we tested whether sul...
The present study evaluated the effects of heat stress on the ram seminal plasma proteome. Six Morada Nova rams were scrotal insulated for 8 days. Scrotal circumference, sperm parameters, and seminal fluid proteins were evaluated before (Day 0) and twice during scrotal insulation (Days...
Transcripts derived from select clades of transposable elements are among the first to appear in early mouse and human embryos, indicating transposable elements and the mechanisms that regulate their activity are fundamental to the establishment of the founding mammalian lineages. Howe...
Plasma anti-Müllerian hormone (AMH) concentrations have been recently found to be predictive of the number of embryos recovered after FSH superovulatory treatment in the cow. However, the sensitivity of the Active Müllerian-inhibiting substance/AMH ELISA (ref. 10–14400; DSL-Beckman-Cou...
Stress tolerance can be induced in embryos by oocyte exposure to hydrostatic pressure, osmotic agents, heat shock, or reactive oxygen species. This study assessed the effects of exposing bovine oocytes to a nitric oxide (NO) donor, sodium nitroprusside (SNP), on subsequent in vitro emb...
We examined the effect of different embryo developmental stages, culture periods, and media on the cryotolerance of in vitro–produced porcine blastocysts. All media used for in vitro production, vitrification, and warming were chemically defined. When in vitro–produced embryos at the b...