Prevention of calf diarrhea with an immunoglobulin diet in beef herds.

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  • 肉牛群における初生子牛下痢症の免疫グロブリン給餌による防御
  • 肉牛群における初生子牛下痢症の免疫グロブリン給餌による防御〔英文〕
  • ニクギュウグン ニ オケル ショセイ コウシ ゲリショウ ノ メンエキ グロブ

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Abstract

Gamma globulin fraction was obtained from serum or colostrum whey of cows vaccinated with bovine rotavirus type 1 and bovine coronavirus and reconstituted artificial colostrum (AC). A field study was conducted in 2 beef herds, where the prevalence of both viruses had been confirmed, in early spring when spontaneous diarrhea was prevalent. At the time of birth calves were divided equally into 2 groups. One group was fed an AC diet additionally 3 times at 2 day-intervals soon after birth. The second group was used as a control. The supply of AC did not entirely eliminate any clinical disease. There were some differences between the AC and control groups in the age in days of onset, duration, and severity of diarrhea. No differences were fround in the average level of circulating immunoglobulin or antibody in the calf serum between the 2 groups. In a twin the protective effect of the AC diet was directly observed on calf serum immunoglobulin level and on symptoms. The additional feeding of the AC diet would be useful for preventing clinical diarrhea in newborn calves.

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