Housing. Many dairy cattle are housed during the winter period, when grass is not growing. Some herds may be housed all year-round (known as âzero-grazingâ).The RSPCA does not support systems housing dairy cattle all year round.Two types of housing system are generally used:ousing. Many dairy cattle are housed during the winter period, when grass is not growing. Some herds may be housed all year-round (known as âzero-grazingâ).
annulus â(plural annuluses or annuli). 1  A ring-or donut-shaped area or structure. ( 2 geometry) The region in a plane between two concentric circles of different radius. ( 3 topology) Any topological space homeomorphic to the region in a plane between two concentric circles of different radius.
Annulus Fibrosus and Nucleus Pulposus. Intervertebral discs are composed of an annulus fibrosus and a nucleus pulposus. The annulus fibrosus is a strong radial tireâlike structure made up of lamellae; concentric sheets of collagen fibers connected to the vertebral end plates.The sheets are orientated at various angles.he annulus fibrosus encloses the nucleus pulposus. Although both the annulus fibrosus and nucleus pulposus are composed of water, collagen, and proteoglycans (PGs), the amount of fluid (water and PGs) is greatest in the nucleus pulposus. PG molecules are important because they attract and retain water.