No abstract

Groups of weanling Cocker Spaniel pups were fed BHA at levels of 0.0, 5.0, 50.0, and 250.0 mg. per kg. of body weight per day for a 15-month feeding period to see what effect, if any, these subacute levels of BHA might have on the dog. General health and weight

manure is collected is not a critical factor, but supernatant water should always cover the manure sludge.3. The water surface area allotted per hen is not a critical factor, although the rate of buildup of solids is dependent upon this area.4. Breakdown and loss of organic matter are considerable in liquid-collected manure. High temperatures (68 and 95°F.) and substantial detention time (56 days) promote this loss of solids. The manure solids remaining are more putrescible as measured by biochemical oxygen demand.5. Organic matter loss is significantly less (P < 0.01) at 45°F. than at 68°F. or 95°F. but there was no difference between 68°F. and 95°F. (P > 0.05).6. Liquid-collected poultry manure has an equilibrium pH of approximately 7.2, and this does not change much with time.