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).
By and large, methane is the most troubling GHG produced by dairy cattle as it has the ability to trap up to 100 times more heat into the atmosphere than carbon dioxide. Around 52 percent of the GHGs produced by dairy is methane. It is estimated that cows produce between 250 and 500 liters of methane a day. Going back to our dairy factory farm with 700 cows, that is up to 350,000 liters or 325,500 pounds of methane pumped into the atmosphere every day.