The benefits of giving vitamin B12 to fighting cocks as I observed are it helps in the regulation of the nervous system of fighting cocks and help reduce stress, vitamin B12 helps to converts carbohydrates into glucose and in result it will increase energy production and help to decrease fatigue of fighting cocks. Vitamin B12 can contribute to the power and strength of fighting cocks.

I give one tablet of AAFES Vitamin B12 daily to my fighting stag and fighting cocks. I observe that by giving them vitamin B12 every day, it helps to digest the feeds easily and it helps to the bowel problem of fighting cock. Vitamin B12 also can help in the appetite problem of fighting cocks.
In the breeding of fighting cocks, giving of vitamins are very important because the health of fighting cocks is one of the factors that can contribute in winning to some fighting cock or stag derby like the world slasher cup, candelaria, bakbakan and digmaan. A healthy fighting cocks or stag has greater winning percentage in the pit.
There are lots of benefits that can get by giving vitamin B12 to your fighting stag or cock every day. Aside from the above mentioned benefits, vitamin B12 can help to increase the immune system of fighting cocks or stag, in that sense fighting cocks are not easily get sick.
A fighting cock or stag that is lack or has a vitamin B12 deficiency will result in muscle weakness; suffer in fatigue and lack of energy. Give vitamin B12 to your fighting cock or stag because it helps in the normal functioning of the brain and nervous system of fighting cocks, and for the formation of blood.