Whole, dry barley treated with ammonia (A), whole, untreated barley (WU) or ground barley (G) were fed with hay and a little high protein concentrate to 7 to 11-month-old lambs. Most apparent digestibility coefficients were found to be 3 to 5 units higher in the diet with barley A than in diets with barley WU or G, the differences being significant. Calculation of the digestibility of barley by difference showed that the coefficients were 8 to 10 units higher in barley A than in barley WU or G as regards dry matter and organic matter. Digestion of crude fibre was better in both A and WU than in G. These differences were also significant. 0rskov, Fraser and McHattie (1974) found that early-weaned lambs digested barley, oats and maize slightly better in whole than ground form, while the reverse was observed with wheat.
The digestibility of oat straw treated with anhydrous ammonia was studied in four Shetland-type ponies in a 4x4 Latin square experiment. The experimental diets which contained soya bean oil meal, corn, sugarcane molasses, and 65 % straw were: (1) straw treated with anhydrous ammonia, (2) untreated straw, (3) untreated straw plus urea, (4) untreated straw plus soya bean oil meal. Digestibility of the dry matter was 15% greater (P<0-01) and digestibility of cellulose 28% greater (P<0-01) in diets containing ammonia-treated straw than in those containing untreated straw. Ammonia treatment increased the nitrogen content of the straw by 50%, and nitrogen intake was 18 % greater when the ponies were fed diet 1 than when fed diet 2. The nitrogen of the treated straw was utilized as efficiently as the nitrogen of the diet containing untreated straw supplemented with soya bean oil meal. However, the amount of nitrogen provided by the diet of ammonia-treated straw was not sufficient for nitrogen balance in the ponies. Ammonia treatment of oat straw did not affect the utilization of Ca, P, or Mg.
Serum antibodies to Borrelia burgdorferi antigen were determined in 71 consecutive patients with an acute peripheral facial palsy. The study was conducted for one year in a south western coastal region in Sweden. Twenty-one per cent of the patients had significantly elevated serum levels of antibodies to Borrelia burgdorferi antigen. CSF was examined in 13 of the sero-positive patients. In three of these (23%) Borrelia antibodies were found. Another five patients had a pathological protein and cell pattern in the CSF. No seasonal differences were observed. Four of the sero-positive patients had a long-term history of dermatological neurological manifestations compatible with the late third stage of the disease.
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