The Blues are very unique. Feeding and breeding is the most important concept to keep in mind. From a birth of a full blood calf to raising the young stock is very important. The new born calf must have colostrum within the first few hours of life either from the mother or a commercial mix in a bottle.
As the calf is growing up feeding is important. Free choices of a 16% protein feed and good hay is essential. The normal formula is 3% of body weight would be required. When the calf is weaned, maintain the 3% of body weight rule up until the animal is 24 months of age.
Do not breed the full blood heifers until they are 24 months of age. Full blood bulls are not ready for breeding until they are 24 months of age. The full blood animals do not mature until they are 5 years of age. That is why most breeders breed the heifer to a small out cross ie angus for the first two claves and then the 3rd calf the cow will be 5 years old.
Feeding the mature animals is very important. Feeding silage or grain up until they are 4 months pregnant is OK. After 4 months only hay, grains and minerals are all you can feed the pregnant full blood. With this program you should avoid any calving difficulties unless a breech birth or a twisted leg. Selenium is important to maintain in their diets.
Half breeds and low percentage can be cared for like any other animal.
Knowing your genetics is extremely important in full bloods and high percentage animals. Make sure you use low birth weight bulls at all times. Some of the old genetics produce large calves so one must stay with proven genetics and low birth weight. There is always the possibility of a genetic mix up that could produce a larger calf.