Abstract
The current study investigated the effect of adding different doses of galangal rhizome powder (Alpinia galanga) to the diets of lactating buffaloes on milk production, composition and in vitro ruminal fermentation kinetics. Twenty buffaloes were divided into four groups: (T1) a control diet comprising of concentrates, corn silage and rice straw at 50: 35: 15 on a DM basis, (T2) a control diet plus 15 g of galangal/animal/day and (T3) a control diet plus 30 g of galangal/animal/day and (T4) a control diet plus 45 g of galangal/animal/day. Results showed that inclusion of galangal in diets decreased (p < 0.05) the concentrations of butyrate, ammonia-nitrogen, CO2, and total protozoa count as compared with T1. Acetate concentration was lower in T4 as compared with other groups (p < 0.05). While propionate concentration was lower (p < 0.05) in T2 as compared with T1. T3 and T4 lowered (p < 0.05) methane, CO2 productions, and protozoa count. T3 increased (p < 0.05) milk yield, energy corrected milk (ECM), yield of total solids, total protein, and solids not fat (SNF) than recorded for T1. While T4 recorded the lowest values (p < 0.05) of milk yield, ECM, total solids, fat, and total protein. The current results support the hypothesis that the inclusion of galangal in lactating buffaloes’ diets at 30 g per animal daily improved feed intake and milk yield.
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