* Udder development: The udder of a pregnant farm animal will begin to develop and fill with milk in the weeks leading up to parturition.
* Enlarged abdomen: The abdomen of a pregnant farm animal will also begin to enlarge as the fetus grows.
* Relaxation of the pelvic ligaments: The pelvic ligaments of a pregnant farm animal will begin to relax in the days leading up to parturition. This can cause the animal to appear to have a "dropped" belly.
* Increased restlessness: A pregnant farm animal may become increasingly restless in the days leading up to parturition. This is due to the discomfort of the enlarged abdomen and the pressure on the pelvic ligaments.
* Frequent urination and defecation: A pregnant farm animal may also urinate and defecate more frequently in the days leading up to parturition. This is due to the increased pressure on the bladder and rectum from the enlarged uterus.
* Swelling of the vulva: The vulva of a pregnant farm animal will begin to swell in the hours leading up to parturition. This is due to the increased blood flow to the area and the pressure from the fetus.
* Mucus discharge from the vulva: A pregnant farm animal may discharge a small amount of mucus from the vulva in the hours leading up to parturition. This is due to the relaxation of the cervix and the expulsion of the mucus plug from the cervical canal.
If you notice any of these signs in a farm animal, it is important to contact a veterinarian to ensure that the animal is healthy and that the parturition process is progressing normally.