How farmers are monitoring what cows eat using 'window' - VIDEO

Farmers have a wealth of technology and data at their fingertips to get the best from livestock, but one old-fashioned technique still remains.

Researchers in Switzerland have fitted 14 cows with cannulas in their sides, that are cut directly into the animal’s digestive tract.

The 8-inch (20cm) holes allow farmers to directly see how food is being processed, and are plugged using rubber stoppers when not being used.Agroscope, in Grangeneuve, Switzerland uses the cannulated cows to test the digestion of different, experimental blends of oats to create a more balanced feed for the animals.The cannula acts like a porthole and gives direct access to the cow’s rumen.Once the cannula is surgically placed in the cow, the animals grazes for a set period of time before being examined.Farmers remove the plug and pull the grass and oat mixture from the rumen.This material is collected and tested, and this analysis shows farmers and researches which forages get the best results from the livestock, based on how much is digested.The practice is said to have become common place in the 1920s but reports of cows being used in this way for scientific research date back to 1833.Cows with cannulas fitted are also known as fistulated cows.The cows are anaesthetised during the surgical procedure and are said to experience no pain when being examined.But animal rights campaigners claim it is abuse, and have branded the practice as cruel.    An episode of Ripley's Believe it or Not interviewed Dr. Edward DePeters from the University of California Davis.The report claimed fistulated cows have a longer life span due to the care they are given.The practice is not unique to Agroscope and is also performed in the U.S and across Europe.(dailymail.co.uk)Bakudaily.az