I am fairly new to the cattle business and I need some help please. A cow has been injured from being bred by a bull. She is having problems walking. When she gets up, she is favoring her right leg, and when she does step, she is dragging that leg and trying not to put any weight on it. She has been this way for 4 days. She has been given shots of antibiotics. She will get up to eat grain, and will take about 6 steps and will lay back down. Is this something that will take more time to heal, or should I have a vet come out and check her? Thanks!!