1 The use of the electron microscope has advanced our understanding of cell biology further ... In the early 1930's this limit had been reached and there was a scientific desire to see the fine details of the interior structures of organic cells (nucleus, mitochondria, inside the nucleus itself, nucleolus).
MaxQ Tall Fescue Grass - Safe For Horse Pastures & Hay. Fescue toxicity has long been an issue for horses, sheep and cattle. Endophyte-free varieties of Tall Fescue Grass were developed, but they suffered from reduced plant hardiness and survival.
Horses can use hay and other roughages as nutrient sources much more efficiently than other nonruminants such as poultry or pigs, although utilization is less efficient than in ruminants. Traditionally, it was stated that a good source of roughage should comprise at least 50% of the total equine ration by weight.It is now recommended that horses receive at least 1.5%â2% of their body weight in forage or forage substitutes such as hay cubes or other high-fiber source daily. 500-kg horse exercising for 1 hr in a hot environment will need to drink 72â92 L of water to replace sweat and evaporative losses. Lactating mares need 12â14 L per 100 kg body wt to sustain good health and milk production.