Results 41 to 50 of about 73,546 (303)

Les variations saisonnières des performances de reproduction chez la truie

INRAE Productions Animales, 2005
Bien que la truie ne connaisse pas d’anœstrus saisonnier, une diminution des performances de reproduction est observée en été et au début de l’automne dans de nombreux pays. La proportion de truies qui tardent à revenir en oestrus après le tarissement augmente tandis que la proportion de truies inséminées qui mettent bas baisse de 5 à 15 %.
Quesnel, Helene, Boulot, S., Le Cozler, Yannick   +2 more
openaire   +4 more sources

Valosin‐containing protein counteracts ATP‐driven dissolution of FUS condensates through its ATPase activity in vitro

FEBS Letters, EarlyView.
Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura, Shin‐ichi Tate, Kyota Yasuda   +2 more
wiley   +1 more source

Évaluation des performances reproductives et productives d’un croisement génétique alternatif entre deux races ovines locales, Ouled Djellal et D’man

Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux
L’objectif de cette étude était d’évaluer l’effet du croisement alternatif sur les performances reproductives et la productivité des ovins. Deux races ovines indigènes algériennes ont été utilisées : Ouled Djellal (OD), connue pour ses qualités ...
Kahina Sebkhi, Mohamed Adaouri, Saddek Triki, Mohamed Lebied, Abderrazek Houari, Afaf Bourada, Lyes Sebbagh   +6 more
doaj   +1 more source

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

The Effect of Stress on Reproduction and Reproductive Technologies in Beef Cattle—A Review [PDF]

, 2020
Researchers have contributed by increasing our understanding of the factors affecting reproduction in beef, mainly physical health and nutrition aspects, which have been main concerns during decades.
Pérez Villalobos, Natividad, Fernández Novo, Aitor, Sonia S. Pérez-Garnelo, Aitor Fernandez-Novo, Arantxa Villagrá, Pérez-Villalobos, Natividad, Villagrá, Arantxa, Fernández-Novo, Aitor, Pérez-Garnelo, Sonia S., Astiz, Susana, Susana Astiz, Natividad Pérez-Villalobos, Pérez Garnelo, Sonia S., Astiz Blanco, Susana   +13 more
core   +1 more source

Quelques aspects de la reproduction chez la chèvre rousse de Maradi. Comparaison avec d'autres races tropicales ou subtropicales

Revue d’Elevage et de Médecine Vétérinaire des Pays Tropicaux, 1975
Le troupeau de chèvres rousses d'un village de la région de Maradi a été observé pendant trois années consécutives. Les résultats enregistrés ont permis de préciser quelques aspects de la reproduction chez cette race: répartition des mises bas, âge à la ...
J.B. Haumesser
doaj   +1 more source

The effect of saltfree - salt diet on the reproductive performance of Ile de France ewes

BULGARIAN JOURNAL OF VETERINARY MEDICINE, 2019
The aim of the present study was to establish the effect of salt-free - salt diet (SFSD) on the size of antral follicles during salt consumption, the duration of controlled breeding campaign and the fertilities of ewes from the Ile de France breed. Тhe experiment was carried out with 57 ewes, which were divided into 3 groups (19 ewes in each) depending
N. Metodiev, D. Dimov, I. Ralchev, E. Raicheva, M. Ignatova   +4 more
openaire   +2 more sources

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

FEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil, Anna Corrà, Annalisa Scapolatiello, Chengxiang Qiu, Gianluca Amadei   +4 more
wiley   +1 more source

Efeitos da herbivoria na sobrevivência e reprodução de Actinocephalus polyanthus, uma espécie monocárpica de dunas: Effects of herbivory on survival and reproduction of Actinocephalus polyanthus, a monocarpic specie of dune [PDF]

, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Biológicas, Programa de Pós-Graduação em Biologia de Fungos, Algas e Plantas, Florianópolis, 2013.Fatores bióticos e abióticos atuam sobre a interação planta-herbívoro ...
Tito Leon, Richard
core  

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source