FOR KIDS - How Cows are Milked video скачать в хорошем качестве

FOR KIDS - How Cows are Milked video

"The Miracle of Milk" is an educational series of videos that was produced by the Dairy Farmers of Ontario (DFO). https://www.milk.org "The Miracle of Milk" is a teacher's tool that is used by DFO's Dairy Educators in schools across Ontario. Check out all nine chapters in the playlist:    • FOR KIDS - The Miracle of Milk videos   Also available in french:    • Pour Enfants - Le Miracle du Lait vidéos   Transcript: Chapter 4 -- How Cows Are Milked Young girl: How do cows make milk? Voice-over: Milk is produced in the cow's udder where milk fat, milk protein and a sugar called lactose are produced. Cows produce milk for about eleven months after they have a calf. Dairy cows usually give birth to one calf a year. Cows that haven't given birth to a calf yet are called heifers. Young girl: I didn't know that. Young girl: How much milk does a cow make? Voice-over: An average cow will produce about 30 litres of milk every day. Two boys: Wow! That's a lot of milk. Young girl: How does the farmer get the milk from the cow? Voice-over: Years ago, farmers milked cows by hand one at a time. Today, farmers use milking machines. Young girl: Milking machines! That's cool. Voice-over: In a tie-stall milking system, the milking machines come to the cows. The cows are milked in their stalls in the barn. The cow's teats are washed with disinfectant and then wiped dry. Then, the milking machine is attached. There are four suction tubes on milking machines -- one for each of the four teats on the cow's udder. Young girl: That's really neat. Voice-over: The cow's teats are dipped with an iodine solution after milking to prevent any bacteria from entering the udder. Young girl: I didn't know that. Voice-over: Cows love to be milked and they need to be milked at least twice a day, usually in the morning and late in the afternoon. At some farms, cows are milked three times a day. Young girl: Where does all that milk go? Voice-over: The milk runs through a hose from the milking machines to a pipe over the cows' heads. The pipe runs the length of the entire barn to a bulk storage tank where it is kept cold for the milk truck to pick it up. Young girl: Are all cows milked like that? Voice-over: Well, there are also milking parlours. In this case, cows routinely walk from the barn to be milked in a parlour. They enter gates that keep them from moving while they're being milked. Below, everything is thoroughly cleaned before and after every milking, including the cows' teats. Then, the milking machine is attached. From the parlour above, the milk travels down a hose to a series of pumps. These pumps send the milk to the milk house. Young girl: I didn't know that. Voice-over: The milk comes out of the cow at body temperature. It's quickly cooled to about four degrees Celsius to keep it fresh. The milk is kept cold in a bulk storage tank -- ready for the milk truck to pick it up. In about 10 minutes, the milking is over. After their teats are dipped in an iodine sanitizing solution, the cows make their way back to the barn.