Synthetic biology is the design and construction of biological devices and systems for useful purposes. It is an area of biological research and technology that combines biology and engineering, thus often overlapping with bioengineering and biomedical engineering.istinguished from older methods of transgenics by the use of either outright synthesised DNA or DNA which has been modified heavily to become more predictable and standardised. A heavy focus on modular design of genetic parts makes synthetic biology more of an engineering discipline than a form of pure science.
If the hay were 88% dry matter, on an as-fed basis, cows would eat about 32 (28 pounds/.88) pounds daily. If there were 200 head of cows in the herd, it would take about 3.2 ton of this hay per day [(200 head x 32 lb/hd/da)/2000lb] not accounting for any waste.
The average dairy cow eats three pounds of silage and one pound of hay each day for every 100 pounds of its body weight. Dairy cows also receive one pound of grain or other concentrated feed for every four to six pounds of milk they give. Cows weigh from 900 to 2,000 pounds.The average annual output of milk per cow is about 10,000 pounds.One gallon of milk weighs 8.6 pounds. Both dairy and beef cattle eat large amounts of forage, or rough feed such as clover or alfalfa. They also eat huge amounts of grass each year and turn it into meat and milk.he average annual output of milk per cow is about 10,000 pounds. One gallon of milk weighs 8.6 pounds. Both dairy and beef cattle eat large amounts of forage, or rough feed such as clover or alfalfa. They also eat huge amounts of grass each year and turn it into meat and milk.