Publications by authors named "F Janett"
Article Synopsis
- * A deletion in the THRSP gene, related to thyroid hormone response, was found in both wisent and bison genomes but not in other cattle species, suggesting that bison may lack this important protein.
- * The study illustrates how super-pangenomes can help identify genetic variations linked to traits across species, while also highlighting challenges in accurately assembling genomes from species that have experienced population bottlenecks.
Feline overpopulation raises issues concerning health, ecology, economy, and ethics. Procedures to limit overpopulation should carefully address animal welfare, efficiency, costs, and feasibility. Vasectomy in unowned cats is suggested as preferable to standard neutering as it maintains male sexual behaviour which may induce ovulation and pseudopregnancy in intact females and may prevent immigration of other males.
View Article and Find Full Text PDFIn this in vitro study, we compare the penetration of cells through different resorbable collagen membranes, which were collagenolytically degraded over different time periods. Three different resorbable collagen membranes were evaluated, including two non-cross-linked (NCL) membranes-namely, a porcine (NCL-P) and an equine (NCL-E) membrane-and an enzymatically cross-linked porcine (ECL-B) membrane. A special two-chamber model was fabricated, allowing for the placement of separating membranes, and a non-porous polyester membrane was used as a negative control (C), in order to verify the impermeability of the experimental chamber device.
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- The study analyzed 70,990 ejaculates from 1343 Brown Swiss bulls to assess semen quality and identified one bull with severely low sperm counts and high immotility due to morphological abnormalities.
- Genome sequencing of this bull revealed a 1-bp deletion in the QRICH2 gene, thought to be a key factor in his fertility issues, leading to a premature stop in protein coding.
- Additionally, another bull with the same genetic deletion displayed similar low sperm quality, suggesting that a recessive loss-of-function allele in QRICH2 may be responsible for the observed fertility problems.
Background: Cattle are ideally suited to investigate the genetics of male fertility. Semen from individual bulls is used for thousands of artificial inseminations for which the fertilization success is monitored. Results from the breeding soundness examination and repeated observations of semen quality complement the fertility evaluation for each bull.
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