Transmission Control References 65 Infectious Agents Introduction Epidemiology Transmission Pathogenesis of Abortion Clinical Signs Diagnosis Control/Prevention Treatment References 66 Infectious Agents Introduction Mycotic Agents Pathogenesis and Pathology Diagnosis Specimens Microscopic and Histopathologic Examination Fungal Culture Methods and Molecular Identification Prevention and Control References 67 Compromised Pregnancy Success Caused by Heat Stress Introduction: Nature of the Problem Causes of Compromised Pregnancy Success Mechanism for Embryonic Mortality Caused by Heat Stress Developmental Acquisition of Thermotolerance by the Embryo Heat Stress and Pregnancy Loss Physiological Approaches for Improving Pregnancy Success During Heat Stress References 68 The Reproductive Tract Microbiome: Introduction Microbiome Research Methodology The Microbiota of the Human Reproductive Tract The Microbiota of the Bovine Reproductive Tract Implications of the Vaginal Microbiota in Compromised Pregnancy Summary References 69 Bovine Abortifacient and Teratogenic Toxins Introduction Nitrate‐/Nitrite‐Accumulating Plants Ponderosa Pine Ateleia glazioviana, Tetrapterys acutifolia, and Tetrapterys multiglandulosa Enterolobium spp. and Stryphnodendron spp. Hairy Vetch (Vicia villosa) Broom Snakeweed Sumpweed (Iva angustifolia) Moldy Sweet Clovers Teratogenic Plants Astragalus and Oxytropis (Locoweeds) Lupines Poison Hemlock (Conium maculatum) Tobacco Poisoning Veratrum californicum (False Hellebore) Mimosa spp. Mycotoxins Ergot Alkaloids Ergotism Aflatoxins Zearalenone Phytoestrogens Trace Minerals and Heavy Metals Arsenic Cadmium Lead Selenium Toxicosis Vitamin A Endocrine‐Disrupting Compounds Polycyclic Aromatic Hydrocarbons Polychlorinated Biphenyls Organochlorine Insecticides Organophosphate and Carbamate Insecticides Exogenous Hormones Pharmaceuticals References 70 Heritable Congenital Defects Introduction Event Investigation Arthrogryposis Multiplex
