Before you can get on the air, you need to be licensed and know the rules to operate legally. US licenses are good for 10 years before renewal and anyone may hold one except a representative of a foreign government. In the US there are three license classesâTechnician, General and Extra. Technician License. The Technician class license is the entry-level license of choice for most new ham radio operators.
The average cow in the U.S. produces about 21,000 lbs. of milk per year, thatâs nearly 2,500 gallons a year! On a daily basis, most cows average about 70 lbs. of milk per day, or about 8 gallons per day. 8 gallons is about 128 glasses of milk per day.Interestingly, a herd of 800 cows can produce a large tanker truckload of milk each day. Over a year, that would be about 20 million lbs. of milk or 2.3 million gallons of milk.**Productivity of the average cow in select countries.ccording to a news report, a cow in Wisconsin produced 72,000 lbs. of milk in a year, or about 8,000 gallons of milk in a year. To produce that much milk, it means that the cow had to produce about 23 gallons of milk each day. (source).
For herds that reach peak production of around 2.0kg milk solids per day (27kg milk), the daily deficit in energy before maximum grass intake is achieved equates to 3-4kg high energy concentrate per day where high quality grass is available. This can be reduced by around 1kg per day if milking once a day.