| Species | Guernsey Cow |
| Average Gestation Period | 283 days |
| Gestation Range | 279 to 287 days |
| Signs of Pregnancy | Cessation of estrus (heat cycle), increased appetite, weight gain, udder development, and behavioral changes. |
| Pregnancy Detection | Rectal palpation (from 30-40 days), ultrasound (from 28 days), blood/milk progesterone tests (21-24 days post-breeding). |
| Trimesters | First Trimester (0-3 months): Embryo development |
| Second Trimester (4-6 months): Fetal growth, organs develop |
| Third Trimester (7-9 months): Significant fetal growth, preparation for birth |
| Nutritional Needs | Increased protein, energy, vitamins, and minerals intake, especially during the last trimester. |
| Health Management | Regular veterinary check-ups, vaccination updates, monitoring for any signs of illness or distress. |
| Preparation for Birth | Move to a clean, safe calving area, ensure proper hygiene, monitor for signs of labor. |
| Signs of Imminent Labor | Restlessness, decreased appetite, udder filling, vulva swelling, mucus discharge. |
| Post-Birth Care | Ensure calf is breathing, clean and dry calf, allow bonding and nursing, monitor cow’s health for complications. |