Figure 1. Effects Of The Fungal Endophyte On Pregnant Mares And Foals Grazing Tall Fescue.

Source: Putnam, et. a1,1990. The effects of fungal endophyte Acremonium coenophialum in fescue on pregnant mares and foal viability. Am. J. Vet. Res. 52:2071.

On average, the gestation period for mares grazing infected fescue was 20 days longer than for those grazing non-infected feasue (Figure 2). Evidence in foals of this longer gestation peried was provided by overgrown hooves, poor and irregular incisor eruption, a long hair coat, poor muscling, large skeletal development, and heavier birth weights.
 
 

Figure 2. Effects OF The Fungal Endophyte On Length Of Gestation And Foal Weight When Mares Grazed Tall Fescue.