Interestingly, the increased abundance of Proteobacteria at family levels (Enterobacteriaceae, Desulfovibrionaceae, Desulfovibrionaceae) in the CON diet group was associated with negative performance parameters such as low colostrum yield, low colostrum proteins, low colostrum IgM, and high stillbirth numbers. This evidence concerns the gene CD40LG and Stillbirth.