(1) 方形条虫に寄生されていた白色レグホンに強力ヘルミノック錠を投薬して, その駆虫効力を調査すると同時に, 投薬が産卵におよぼす影響をも調査した.
(2) 1回2錠の強力ヘルミノック錠を7日の間隔をおいて, 絶食させないで2回投薬すれば大部分の条虫は完全駆虫され, 回虫は1回の投薬で100%ちかい駆虫ができる.
(3) 2錠ずつの強力ヘルミノック錠を1回, または7日の間隔をおいて2回, さらに同じ間隔をおいて3回投薬しても産卵にはなんら異常は認められない.

抄録全体を表示

A survey of bacterial contamination was performed in the manufacturing process of tofu or bear curd.
From the results of this survey, it is supposec that the number of organisms increased as the process progressed. The S. P. C. of tofu at the enc of the process was 50 times as high as that at the beginning (Tables 1 and 2 and Fig.1).
It is important to prevent secondary contamination from contaminated water and instruments used for manufacturing, the hands and fingers of plant workers, etc:

抄録全体を表示

1. An outbreak of pullorum disease was observed on a poultry farm in Aomori Prefecture. Bacteriological examination was performed on 4 chicks, 7 and 16 days old, of those dead in the farm. As a result, Salmonella pullorum was demonstrated in all the birds and S. bareilly, S. potsdam, and S. senftenberg were detected at the same time from two 7-day-old chicks.
2. Those chicks which survived at 51 days of age and a majority of the adult chickens kept with them gave positive agglutination reactions with S. pullorum.
.3. Bacterial examination was conducted in the hatchery which supplied chicks to the poultry farm. As a result, S. bareilly, S. give, and S. senftenberg were detected from 10-day-old chicks, and S. give and S. senftenberg from chicks which died just after hatched and embryonating eggs the development of which was suspended, but S. pullorum was not demonstrated in any of those stated above.
4. When eggs of the same hatchery were incubated in a thoroughly disinfected incubator, no species of Salmonella were isolated from chicks hatched from them and embryonating eggs under suspended development.
5. In egg-yolk agglutination reaction of embryonating eggs the development of which had been suspended and from which S. give and S. senftenberg were detected, no agglutinin was observed to be present against the both species.
6. These results indicate that the Salmonella organisms other than S. pullorum detected at the same time from an outbreak of pullorum disease among 7-day-old chicks in a poultry farm in Aomori Prefecture were also detected from among dead chicks and embryonating eggs under suspended development of a hatchery which had supplied chicks to the farm. From these results, it is presumed that these organisms infected eggs during incubation. It is judged that S. pullorum infection, which formed the core of the outbreak, was transmitted from adult chickens to the*chicks kept with them, not from the incubator nor laying hens.

抄録全体を表示

A field survey was carried out, in 1957-58, on the nutritional status of dairy cows in Akita, Nagano, and Niigata Prefectures. In this survey clinical examinations were performed on 505 cows.
1. Body temperature: Seasonal changes in body temperature were relatively remarkable. In winter the temperature was in the physiological range of 37.5-39.5°C (38.5°C on the average) as mentioned in conventional textbooks, but it always exceeded this range in the other seasons of the year.
2. Apparent status of nutrition: The apparent status of nutrition was assessed by three grades, excellent, good, and fair. As a result, small differences were observed according to the season and area. Cows in fair status of nutrition were found in a large number in an area thickly contaminated with liver flukes and were detected relatively frequently, in 1958, from among those suffering from reproductive disorders.
3. Conjunctiva: Conjunctival anemia was observed in approximately 30 per cent of those examined in each area, although there were some differences in percentage between areas and seasons. Conjunctival anemia had a relationship with a decrease in erythrocyte count, liver fluke infection, Gross reaction, reproductive disorder, and physiological nonpregnancy.
4. Hardness of bone: The hardness of the frontal bone was measured by TOBA device for the diagnosis of osteomalacia. Some differences were observed between areas and seasons in the percentage of cows showing a hardness of under 16 kg. The hardness of bone was related to the age and the history of parturition.
5. Other pathological findings: Of the other pathological findings, liver pain against percussion, swelling of lympth nodes, edema, skin diseases, and disturbances of digestion were found in a relatively large number of cows, and respiratory disorders, circulatory disturbances, surgical diseases, hematuria, and exophthalmos in a small number.
6. Anamnesis: Of the diseases from which the cows under survey had ever suffered, diseases of the reproductive and digestive organs, ketosis, and mastitis were relatively frequent, and poisoning, injuries, and colds were reported in a small number of cows.

抄録全体を表示