Partur's population is 28,941.
It is the Process by which Dairy Farmers provides Extra concentrates to the Pregnant animal in the last trimester to avoid any complications during parturation(due to protein deficiency) and also it helps cattle produce higher.
No there will be no problem if mother's blood group is posotive and father's is negative as during pregnance if fetous is negative then when parturation occurs and if mothers blood is mixed with child blood then even there is no problem as both have -ve and in case if child have blood group +ve then even due to presence of -ve blood of mother it will not create any antibodyBut if the blood group of parents are reversed then there can be a problem
If the calf has not been born and the cow is having problems, find the feet and locate the head (sometimes the calf is not positioned properly), once you have found the feet tie some baler twine or other soft rope ( you will want a long piece of string fold it in half so one end has a "loop" put the rope under the calf, take the end with no "loop" and put it through the loop and that will be your "tied rope"). Place it behind the dewclaws, and pull but ONLY when the cow pushes (if she is standing while you pull push downwards). This should only take a couple of good pulls. Once the calf is born, be sure it is breathing, clear is nostrils (just move your hand down its mussel slightly pushing so the muchus is taken away by your hand). If it is not breathing you will need to do CPR, put the calf on its side so that the left side is facing you, close one nostril and try to seal your mouth to the open nostril and blow air, then pump three times on the heart. Repeat until the calf breaths. I hope that this helps!