Herpesviruses have mainly co-evolved with their hosts for millions of years. Consequently, different related host species may have been infected by various genetically related herpesviruses. Illustrating this concept, several ruminant alphaherpesviruses have been shown to form a cluster of viruses closely related to bovine herpesvirus 1 (BoHV-1): namely bovine herpesvirus 5, bubaline herpesviru...

Fibrous green crops can be separated by mechanical methods into two fractions: a highquality fibrous feedstuff for ruminants and a liquid rich in protein, sugars and minerals for non-ruminants. The yields of crude protein (CP) (nitrogenx6.~5) which can be obtained from grasses and legume crops are substantially greater than for other methods of crop or animal production (Davys, 1973) (Table I),...

Worldwide, the invasiveness of Opuntia spp. and its impact on various ecosystem services has been recognised especially in semi-arid areas where rainfall is erratic. The environments are habitats plants which have adapted to be able grow severe hot dry regions. normally thrives conditions high temperatures, low rainfall, saline soils it can also adapt survive severely degraded a limited nutrien...