Nuturitional conditions of the dams and the white scour of calf in Japanese black cattle
1997
Okada, K. (Iwate Univ., Morioka (Japan). Faculty of Agriculture) | Tako, M. | Sato, T. | Murata, O. | Itoh, M. | Watanabe, K. | Shimoyama, S. | Sasaki, J. | Kaneda, Y.
A metabolic profile test after parturition was performed on Japanese black dams of 7 farms,from days 8 to 99 (stage I), from days 100 to199 (stage II) and, from days 200 or later (stage III). In group A (41 dams of 3 farms) given corn silage throughout the year, the calves experienced frequent occurrence of white scour and the dams showed abnormalities in rumen conditions and decreased fat metabolism through the stages I to III. In group B (22 specimens of 2 farms) given corn silage except the stage I after parturition many cases of the disease were observed in calves, and energy balance remained lower at the stage I and fat metabolism deteriorated over the stages I to II in dams. The results suggested that decreased fat metabolism in dams during the stage I was relative to the occurrence of white scour in calves
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