Results 41 to 50 of about 8,650 (196)
La reproduction des ânes domestiques et la production de mulets. Note bibliographique [PDF]
, 2009 La mise à la reproduction de l'ânesse est assez tardive (2 à 4 ans) mais peut se poursuivre après 20 ans. La reproduction est possible toute l'année, avec des variations saisonnières près de l'équateur.
Meyer, Christian
core
Andrology, Volume 13, Issue 2, Page 184-201, February 2025.Abstract Background Ion channels are essential for differentiation and maturation of germ cells, and even for fertilization in mammals. Different types of potassium channels have been identified, which are grouped into voltage‐gated channels (Kv), ligand‐gated channels (Kligand), inwardly rectifying channels (Kir), and tandem pore domain channels (K2P).
Ariadna Delgado‐Bermúdez +3 more
wiley +1 more source
Revue de Primatologie, 2015 La conservation des espèces nécessite une approche multidisciplinaire (écologie, géographie, environnement, biologie de la conservation, anthropologie, génétique...).
Romain Lacoste +2 more
doaj +1 more source
African and Mediterranean Agricultural Journal - Al Awamia, 2023 Le but de cette étude était d'analyser l'effet des huiles essentielles d'Origanum onites et d'Origanum vulgare sur la qualité du sperme de bouc Beni Arous pendant le stockage à 4°C.
Amr Kchikich +9 more
doaj +1 more source
Morphological variation of the spermatheca in the garden snail Cantareus aspersus - article in French with an abridged English version [PDF]
, 2007 articleSpermathecal morphology is known to play an important role in postcopulatory sexual selection of many invertebrates. In helicid land snails, the spermatheca is subdivided into tubules, whose number is sometimes subject to a strong inter-individual
Evanno, G., Madec, L.
core +3 more sources
Basic and Clinical Andrology, 2021 Résumé Contexte L’utilisation de la cytométrie en flux (CF) pour évaluer la fragmentation de l’ADN des spermatozoïdes via la technique TUNEL (Terminal transferase dUTP nick-end labelling) a montré des incohérences par rapport aux analyses ...
Niloofar Sadeghi +7 more
doaj +1 more source
L'insémination artificielle des volailles. Note bibliographique [PDF]
, 2009 L'insémination artificielle des volailles est une technique qui présente des avantages mais aussi des contraintes et qui est employée largement surtout pour les pintades, les dindes et les canards en particulier dans le croisement inter générique ...
Meyer, Christian, Rouvier, Roger
core
Genre, parenté et techniques de reproduction assistée : bilan et perspectives après 30 ans de recherche [PDF]
, 2014 International audienceThis volume of Enfances Familles Générations (Childhood Families Generations) looks at the current issues raised by the advent and proliferation of assisted reproductive technologies with a particular focus on kinship and gender. In
Courduriès, Jérôme, Herbrand, Cathy
core +2 more sources
Andrology, Volume 12, Issue 2, Page 396-409, February 2024.Abstract Background An important issue for young men affected by testicular germ cell tumor (TGCT) is how TGCT and its treatment will affect, transiently or permanently, their future reproductive health. Previous studies have reported that xenobiotics can induce changes on human sperm epigenome and have the potential to promote epigenetic alterations ...
Anne‐Sophie Neyroud +8 more
wiley +1 more source
Sperm Competition, Sperm Numbers and Sperm Quality in Muroid Rodents
PLoS ONE, 2011 Sperm competition favors increases in relative testes mass and production efficiency, and changes in sperm phenotype that result in faster swimming speeds. However, little is known about its effects on traits that contribute to determine the quality of a whole ejaculate (i.e., proportion of motile, viable, morphologically normal and acrosome intact ...
Laura Gómez Montoto +7 more
openaire +4 more sources