While females and juveniles are orange to tawny, males are much darker – their coat is typically bluish grey. The ventral parts, the insides of the thighs and the tail are all white.  A white stripe extends from the underbelly and broadens as it approaches the rump , forming a patch lined with dark hair.  Almost white, though not albino , individuals have been observed in the Sariska National Park ( Rajasthan , India)  while individuals with white patches have been recorded at zoos.  The hairs, typically 23–28 centimetres (– in) long, are fragile and brittle.  Males have thicker skin on their head and neck that protect them in fights.  The coat is not well-insulated with fat during winter, and consequently severe cold might be fatal for the nilgai. 
Belgian Sheepdogs get along best with other dogs and cats when they're brought up with them from puppyhood. Sometimes they become best friends with cats and other animals and will protect them as they would members of their flock, and sometimes they all come to an agreement of mutual indifference. Belgian Sheepdogs can be aggressive toward other animals who aren't part of their family. If you want your Belgian Sheepdog to get along with other animals you must start early and reward them for appropriate behavior. If your Belgian Sheepdog hasn't been socialized to other animals , it's your responsibility to keep him under control in their presence.
The economics of breeding and raising Belgian Blue cattle are inconclusive because of complications experienced during parturition and metabolic demand for increased concentrated feeds. The breed's increased need to have Caesarean sections when calving means increased cost and added work, and can become a welfare issue. [ citation needed ] However, the carcass value of double-muscled animals may be enhanced due to increased dressing yield, lean carcass content, and upgrading of some cuts leading to a higher proportion of higher valued cuts.  The slower rate of fat deposition causes slaughtering to be delayed in most cases, which means an increase in maintenance costs in those animals. Belgian Blue cattle require more skilled management and do not thrive in harsh environments.  For these reasons and others, the breed's overall production efficiency in an economic sense is still unclear.