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Ruminant Nutrition and Forage Utilization
Asian-Australasian Journal of Animal Sciences 2007;20(9): 1389-1396.
https://doi.org/10.5713/ajas.2007.1389    Published online August 30, 2007.
A Comparative Study on the Effect of Cassava Hay Supplementation in Swamp Buffaloes (Bubalus bubalis) and Cattle (Bos indicus)
G. Granum, M. Wanapat, P. Pakdee, C. Wachirapakorn, W. Toburan
Twelve swamp buffaloes and Brahman cattle heifers (6 animals each) were randomly assigned to two treatments, control (grazing only) and supplementation of cassava hay (CH) at 1-kg dry matter per head per day (DM/hd/d), in a 2?? factorial arrangement according to a cross-over design. The cassava hay contained a high level of protein (19.5% of DM) and a strategic amount of condensed tannins (4.0% of DM). As a result it was revealed that supplementation of CH at 1-kg DM/hd/d significantly (p<0.05) improved the nutrition of both swamp buffaloes and Brahman cattle in terms of DM, organic matter (OM), protein and energy intake and digestibility, ruminal NH3-N and rumen ecology. Supplementation significantly (p<0.05) reduced weight losses in both species and improved the health, in terms of reduced number of parasite eggs in feces (p<0.05), of both buffaloes and cattle. There tended to be a difference in term of response to CH between the two species. The DM, OM, protein intake and digestibility and total digestible energy intake tended to be higher for buffaloes as compared to cattle. Moreover, the percentage reduction of parasite eggs tended to be higher for buffaloes as compared to cattle (57.6 and 45.0%, respectively). However, there were no significant interactions between species and treatments.
Keywords: Ruminants; Cassava Hay; Protein Supplementation; Condensed Tannins; Fecal Parasitic Eggs Count; Swamp Buffalo; Beef Cattle; Grazing; Digestibility

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