Here's why that's unlikely:
* Plant toxins work differently: Plant toxins usually don't have a specific "day of impact" during pregnancy. Their effects depend on the amount ingested, the plant's toxicity, and the stage of development of the fetus.
* Development is complex: The fourteenth day of gestation in sheep is very early in the pregnancy. At this point, major organ development is just beginning. While toxins can cause harm at any stage, they are more likely to cause severe deformities later in the pregnancy.
* Birth defects are multifactorial: Birth defects are often caused by a combination of genetic and environmental factors. It's unlikely a single plant ingested on a single day would be the sole cause.
However, there are many poisonous plants that can cause birth defects in sheep when consumed during pregnancy:
* Veratrum californicum (western false hellebore): This plant, if ingested during the first trimester, can cause cyclopia (a single eye) and other severe facial deformities.
* Lupinus spp. (lupine): Lupines contain alkaloids that can cause various deformities, including cleft palate, limb defects, and heart problems.
* Astragalus spp. (locoweed): Locoweed contains toxins that can cause neurological problems, birth defects, and even death in sheep.
Important Note: If you suspect your sheep have ingested a poisonous plant, contact a veterinarian immediately.