What's the difference between grass and pasturage?

Grass

Definition:

(n.) Popularly: Herbage; the plants which constitute the food of cattle and other beasts; pasture.
(n.) An endogenous plant having simple leaves, a stem generally jointed and tubular, the husks or glumes in pairs, and the seed single.
(n.) The season of fresh grass; spring.
(n.) Metaphorically used for what is transitory.
(v. t.) To cover with grass or with turf.
(v. t.) To expose, as flax, on the grass for bleaching, etc.
(v. t.) To bring to the grass or ground; to land; as, to grass a fish.
(v. i.) To produce grass.

Example Sentences:

(1) Tottenham Hotspur’s £400m redevelopment of White Hart Lane could include a retractable grass pitch as the club explores the possibility of hosting a new NFL franchise.
(2) Using a large clinic population with adequate controls, significant correlation between ragweed, grass or tree pollen sensitivity and the dates of birth was not obtained.
(3) A grassed roof, solar panels to provide hot water, a small lake to catch rainwater which is then recycled, timber cladding for insulation ... even the pitch and floodlights are "deliberately positioned below the level of the surrounding terrain in order to reduce noise and light pollution for the neighbouring population".
(4) Key to this has been the employment of Erin McCallum, a highly-respected political strategist and grass roots organiser, as our new national campaign director.
(5) The clinical findings in six natural and two experimental cases of Kikuyu grass poisoning in Natal, South Africa, are described and compared with findings in cases of toxicity reported elsewhere.
(6) Six of the WAD goats carried natural infections of H. contortus and T. colubriformis and eight other (tracer) goats acquired their infections from a grass paddock artificially contaminated with H. placei, C. pectinata and C. punctata, during May to October.
(7) Six atopic subjects with grass pollen allergy and six nonallergic healthy volunteers were enrolled into this study.
(8) The survival of infective larvae of Ancylostoma caninum on outdoor grass plots was studied in 40 experiments over 1 year.
(9) But pipeline opponents say that by moving beetles from the Nebraska sandhills and mowing miles of grass where the insects once lived, TransCanada has illegally begun construction on the project.
(10) Most patients showed several positive skin tests to common allergens particular to grass pollen, house dust and mites (Dermatophagoides pteronyssimus).
(11) For all its posing and grooming, there are no nightclubs - the only flashing lights along this coast are the glowworms strobing across the grass at dusk.
(12) Highest concentrations of haptoglobin and orosomucoid were recorded in subacute grass sickness.
(13) The principle’s not so different now.” Fifteen years ago, when he was 27, Baker found himself with an ailing father and 250 cows, farmed traditionally – grass in summer, silage and concentrates in winter – around the village.
(14) Consumption of alfalfa hay resulted in the highest total viable counts of rumen bacteria but a lower proportion of fibrolytic counts than seen on the grass diets.
(15) The year 2000 process, a national grass-roots initiative, may be a useful model for individual states to adopt.
(16) But he quickly carved out a niche, introducing to an English-speaking audience the works of German-language writers, notably Friedrich Hölderlin, but also Brecht, Rilke, Grass and others.
(17) Cattle are excellent converters of grass but terrible converters of concentrated feed.
(18) passing through a 1.18 mm sieve during wet sieving) from the reticulo-rumen were negatively related to dimensions of particles, with greater ease of outflow for legume than for grass particles of the same length or diameter.
(19) In allergologic out-patient departments of Dubrovnik, Split, Sibenik, Zadar, Pula and Rijeka, 300 patients with pollinosis have been tested by the application of the prick method of group allergens of grass, tree and weed pollen, particularly of Parietariae (pellitory) pollen.
(20) When the couple looked over their own balcony on the 15th floor of 63 Petershill Drive in Glasgow's Red Road estate, they saw three bodies on the small square of grass below.