th, eyes, and other mucous membranes (cyanosis) Shortness of breath Staggering gait Death Chocolate brown blood Muddy, cyanotic mucus membranes Congestion of rumen and abomasum Subacute poisoning: Watering eyes Unthrifty appearance Reduced milk flow Reduced weight gain Abortion and infertility How to Reduce LossesCrops that accumulate nitrate and grow under conditions favoring nitrate accumulation