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Enhancing farmer awareness: Vertical transmission of Neospora caninum in aborting cattle and the value of diagnostics tools.
Vet Parasitol
January 2025
Institute of Parasitology, Vetsuisse Faculty, University of Bern, Länggassstrasse 122, Bern 3012, Switzerland. Electronic address:
The protozoan parasite Neospora caninum is an important cause of abortion in cattle. Infection occurs horizontally by ingestion of oocysts shed by canids or vertically, from an infected dam to the foetus, and may result in abortion, stillbirth, or the birth of subclinically infected offspring. We estimated the occurrence of N.
View Article and Find Full Text PDFPrey depletion, interspecific competition, and the energetics of hunting in endangered African wild dogs, .
Proc Natl Acad Sci U S A
February 2025
Swansea Lab for Animal Movement, Biosciences, College of Science, Swansea University, Swansea, Wales SA2 8PP, United Kingdom.
Large herbivores are in decline in much of the world, including sub-Saharan Africa, and true apex carnivores like the lion () decline in parallel with their prey. As a consequence, competitively subordinate carnivores like the African wild dog () are simultaneously experiencing a costly reduction in resources and a beneficial reduction in dominant competitors. The net effect is not intuitively obvious, but wild dogs' density, survival, and reproduction are all low in areas that are strongly affected by prey depletion.
View Article and Find Full Text PDFEffects of endometrial embryokines on the preimplantation bovine embryo to create a gene expression signature consistent with a high competence phenotype†.
Biol Reprod
January 2025
Department of Animal Sciences, University of Florida, Gainesville, FL 32611-0910, USA.
Optimal embryonic development depends upon cell-signaling molecules released by the maternal reproductive tract called embryokines. Identity of specific embryokines that enhance competence of the embryo for sustained survival is largely lacking. The current objective was to evaluate effects of three putative embryokines in cattle on embryonic development to the blastocyst stage.
View Article and Find Full Text PDF14-3-3 promotes sarcolemmal expression of cardiac Ca1.2 and nucleates isoproterenol-triggered channel superclustering.
Proc Natl Acad Sci U S A
February 2025
Department of Physiology and Membrane Biology, University of California Davis, Davis, CA 95616.
The L-type Ca channel (Ca1.2) is essential for cardiac excitation-contraction coupling. To contribute to the inward Ca flux that drives Ca-induced-Ca-release, Ca1.
View Article and Find Full Text PDFElectric transportation and electroreception in hummingbird flower mites.
Proc Natl Acad Sci U S A
February 2025
School of Biological Sciences, Life Sciences Department, University of Bristol, Bristol BS8 1TQ, England.
Electric fields in terrestrial environments are used by caterpillars to detect their predators, as foraging cues by pollinators, and facilitate ballooning by spiders. This study shows that electric fields facilitate transportation and detection of hummingbirds in a guild of tropical phoretic mites. Hummingbird flower mites feed on nectar and pollen and complete their life cycle inside flowers.
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