Pathology of hens fed a diet containing methanol-utilizing bacteria.
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概要
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Pathological examination was made on 59 chickens aged 212 weeks which were fed a feed containing the protein from the methanol-utilizing bacteria as described in the previousreport [Japan. Poult. Sci., 19, 322-343 (1982)]. In addition, there were birds of the same age fed a control diet. Macroscopically, the following changes were observed; fatty liver (46%), atrophy of the ovary and oviduct (34%), cystic dilation of Mueller's canal (34%), and ruptured-yolk peritonitis (25%). Microscopically, the following lesions were frequent in 30 chickens examined; ruptured-yolk peritonitis (93%), fatty liver (93%), leiomyoma of the oviduct ligament (23%) and perivascular cell infiltration in the brain (13%). Both macro-scopical and microscopical lesions occurred in the control birds with almost the same degree of incidence. The observations made are common in routine pathological examinations and no unusual features were noted. From the results, it was concluded that the microbial protein was harmless to the chicken.
- 日本家禽学会の論文
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