No, this is not a Japanese custom.
No its not mandatory
yes if you dont burp you will be disrespected from that family or group of people
No, this is an urban legend that has been circulating for a long time. The Japanese do not burp after meals. In fact, the Japanese people are relatively meticulous about cleanliness and conscientious about bodily functions. Making these kind of sounds in public can actually be seen as sort of taboo.
The Japanese and other people use chopsticks for many of Japanese meals.
Harry Hill's TV Burp ended on 2012-03-24.
Japanese generally eat three meals: asagohan/choshoku, hirugohan/chushoku, and yugohan/yushoku. They correspond to breakfast, lunch, and dinner, and are eaten t approximately the same times as Western meals.
On the floor.
Whoever replied before me doesn't know what the hell they're talking about. It is considered polite to burp during or after meals in some places in the world. I believe Italy is one, China, India, Russia...
A general composition is: nitrogen and oxigen; after drinking carbonated beverageas carbon dioxide is added. Sometimes odors from other drinks and meals.
Sandra's Money Saving Meals - 2009 Japanese Restaurant 3-5 was released on: USA: 2010
It must be possible for the bee to take in exess air when eating, and would have to get rid of it some how, so I think it must release tiny amounts of air (very rarely). but as bees don't have vocal chords it would not make any sound.
do goats burp