Beef is a very important part of Chinese food culture, and in Belgium, there is a man-made monster, the devil's rib beef cow Belgian blue bull, they are full of terrible muscles, but the reason behind it is sad...

<h1>Why is it full of muscles</h1>
Belgian lamb beef is large, round and muscular, and is represented by heavy folds of flesh on the shoulders, back, waist and thighs. The head is light, the back is straight, the jiri is sloping, and the skin is delicate, with white, blue spots, or a few black spots. Adult cows weigh an average of 725 kg and a height of 134 cm; bulls weigh 1200 kg and have a height of 148 cm.
Belgian Blue Bulls are full of muscle because one of their protein genes doesn't work properly. This protein is called "muscle growth inhibitin."
Muscle suppressorin is a protein secreted by skeletal muscle, and when it enters the bloodstream, types of proteins such as muscle growth inhibitin signal to molecules called growth factors between cells. Thus slowing down the rate of muscle growth. It's a bit like muscles telling the body, "The muscles are strong enough, they don't have to grow any longer." ”。
The Belgian Blue Bull lacks "muscle growth inhibitors", so the body does not receive information from the muscles, and the muscles "grow crazy".
Of course, when the Belgian Blue Bull was created, scientists did not understand this, when Belgium introduced the British shorthorn cattle and the French Charolet cattle, the two breeds, the two after a fortuitous hybridization without human intervention, gave birth to the Belgian Blue Bull, a new breed of beef cattle, they are born with a protein gene called "muscle growth inhibitin", so this muscle will develop abnormally, they can even gain 1.4 kilograms in a single day, and it is the kind that almost does not have any fat...
French Charolais cattle
British shorthorn cattle
This excites scientists. In the process of continuous breeding, scientists let the Belgian Blue Bull this genetic mutation of the "defect", is fixed, so that the Belgian Blue Bull muscle mass is much higher than the normal level, it can be said that almost everywhere the eye is the shape of the muscle, it is precisely because of the muscular and fine muscle fibers, the Belgian Blue Bull has become the only special breed in the world that has been bred for pure meat...
It wasn't until 1997 that scientists finally found genes that could control muscle growth inhibitor secretion, and successfully created a wave of "magic mice" that nearly doubled their muscle mass. Mastering the "code" of muscle communication with the body, scientists began to release themselves and did some bold experiments. For example, Professor Terry Bradley of the University of Rhode Island in the United States spent ten years "convincing" the body of rainbow trout to grow six-pack abs.
Of course, the Belgian Blue Bull, unlike mice with damaged muscle growth inhibitor genes, mainly have genes that inhibit the production of muscle growth inhibitors, which usually inhibit muscle growth after a certain point. Pure Belgian Bruce carried two copies of the gene. In hybrid breeding, one copy is often copied to increase muscle weight in the offspring of the hybrid breed. The muscle cells of these cattle multiply rather than expand. So people call these cows "double muscles."
Therefore, the pure muscle content of the Belgian Blue Bull can reach an astonishing 70%, which can provide 18% to 20% more muscle, 10% less bone, and 30% less fat than other breeds of cattle, and some ranchers think about how to maximize the economic benefits, and finally think of the way is to intervene in the natural breeding of Belgian Blue Cattle, using directional breeding methods to consolidate the quality of their offspring.
The result is that the Belgian Blue Bull is bigger and more muscular, and the huge Blue Bull is like a biochemical monster. This also makes it impossible for Belgian blue bulls to breed properly. However, this has benefited ranchers because of their high commercial value, and the Belgian Blue Bull has been distributed to more than 20 countries such as the United States and Canada.
<h1>The bitterness of the Belgian Blue Bull</h1>
Because of their unusually large size, which allowed them to have muscular buttocks, scientists found that this caused the weight of the bull's testicles and the quantity and quality of semen to decrease, which caused the low fertility rate of the Belgian Blue Bull.
This also squeezes the birth canal of female cows, and the number of muscle fibers at the time of calves is twice that of calves without mutations in the myastostatin gene. Newborn bimuscular calves are significantly larger than normal calves, which makes Belgian blue cattle very prone to difficult births. The difficult yield rate of Belgian blue cows is more than 95%. Therefore, the caesarean section rate of Belgian Blue Bull is 95% to 99%, which also makes the Belgian veterinarian superb caesarean section technology.
Belgian blue cow cub survival rate is also relatively low, after birth pups have a high probability of some birth defects, such as a large tongue or suffer from heart and lung diseases, because of the large size, full of muscles, the bones and joints of the cow cubs also have certain problems.
The life of the Belgian Blue Bull is very unfortunate, either struggling to fight the disease and finally walking through the pain of life, or spending their infancy in pain, waiting for the adult to end their lives in the slaughterhouse.
<h1>summary</h1>
Human beings transform creatures to satisfy their own desires, purebred dogs, purebred cats, Belgian blue bulls, etc. are the products of human transformation, they have to endure the torment of illness from birth, human beings claim to be the spirit of all things, should they bear the responsibility of the spirit of all things?