ABSTRACT
A case of group B streptococcal meningitis developed in a previously healthy adult. The group B streptococcus may be underrecognized as a pathogen in human disease. Survival is good after appropriate therapy, with only six fatalities in 33 cases reported in the literature. However, our patient showed the unusual neurologic complication of bilateral deafness in group B meningitis in adults.
Subject(s)
Deafness/complications , Meningitis/complications , Streptococcal Infections/complications , Acute Disease , Adult , Aged , Female , Humans , Male , Meningitis/diagnosis , Middle Aged , Streptococcal Infections/diagnosis , Streptococcus agalactiaeABSTRACT
Two complete blended diets with a ratio of concentrate: silage dry matter of 60:40 were fed to 12 Holstein cows in the first 12 wk of lactation in an incomplete changeover arrangement of treatments. Diets differed (dry basis) in content of total nonstructural carbohydrate (24.9% versus 32.9%), neutral detergent fiber (37.0% versus 32.1%), and hemicellulose (19.6% versus 15.7%) but were similar in amounts of lignin, crude protein, soluble nitrogen, and acid detergent insoluble nitrogen. The diet with more total nonstructural carbohydrate was associated with greater dry matter intake as a percentage of body weight and greater yields of milk and solids-not-fat. Cellulose digestibility and mean rumen ammonia concentration were lower with this diet. Despite similar protein solubilities, the diet with more total nonstructural carbohydrate contained more rumen degradable nitrogen (80% versus 60%) but similar amounts of rumen degradable dry matter (82% versus 79%). The metabolizable energy of this diet was used more efficiently for the combined functions of maintenance and production, and net energy for lactation was larger (2.2 versus 1.9 Mcal/kg dry matter), as measured calorimetrically.
Subject(s)
Cattle/metabolism , Dietary Carbohydrates/administration & dosage , Energy Metabolism , Milk/metabolism , Nitrogen/metabolism , Ammonia/metabolism , Animals , Digestion , Female , Lactation , Rumen/metabolismABSTRACT
Calibration techniques were developed for a modified commercial oxygen consumption computer. Oxygen consumption over 5 min by 130 3-mo-old dairy calves was measured 3 h after feeding. Subsequently, Estimated Transmitting Abilities were used to calculate the production potential for lactation milk energy (kcal/305-day lactation) for 88 of the animals. Correlations between lactation milk energy and oxygen consumption or oxygen consumption corrected for weight of calf were calculated by breed. Breed correlations were tested for homogeneity and pooled. The correlation coefficient between oxygen consumption and lactation milk energy was .20 with a 95% confidence interval of -.02 to .40.
