The env gene of Small Ruminant LentiViruses (SRLV) encodes a polypeptide precursor which after glycosylation is cleaved to give the two glycoproteins viral envelope: transmembrane protein (TM) and surface (SU). passage adaptation SRLVs in new hosts always accompanied by genetic mutations SU region that determines tropism virus recognition cellular receptor. We studied properties "quasi-species"...

Small ruminant farming is the main rural occupation in mountain areas of Morocco. This activity subject to numerous pressures, including repeated climatic hazards that modify pastoral resource availability and trigger changes production systems. study aimed identify analyse utilisation resources acknowledged by farmers over past 40 years for small systems Central High Atlas region We hypothesis...

Staphylococcus aureus is an important pathogen in domestic ruminants. The main objective of this study was to determine the similarity of epidemiologically unrelated S. aureus isolates from bovine, ovine, and caprine hosts regardless the locus of isolation (nares and udder). By pulsed-field gel electrophoresis, seven major pulsotypes were identified among 153 isolates recovered from 12 differen...

We have investigated the mechanisms of regulation of the Na+/glucose co-transporter (SGLT1) in a ruminant animal, which is an exceptional model system for studying intestinal glucose transport. Pre-ruminant lambs absorb glucose, produced by hydrolysis of the milk sugar lactose, in the intestine via apical SGLT1 and basolateral facilitative glucose transporters (GLUT2). Weaning coincides with th...

Ruminant-derived methane (CH4), a potent greenhouse gas, is a consequence of microbial fermentation in the digestive tract of livestock. Development of mitigation strategies to reduce CH4 emissions from farmed animals is currently the subject of both scientific and environmental interest. Methanogens are the sole producers of ruminant CH4, and therefore CH4 abatement strategies can either targe...

Staphylococci are the main aetiological agents of small ruminants intramammary infections (IMI), the more frequent isolates being S. aureus in clinical cases and coagulase negative species in subclinical IMI. The clinical IMI, whose annual incidence is usually lower than 5%, mainly occur at the beginning of machine milking and during the first third of lactation. These features constitute small...