Nutrient digestibility in soybean meals as influenced by origin | Vpliv izvora sojinih obrokov na prebavljivost hranil pri pujskih
2010
Goerke, M., Stuttgart. (Germany). Univ. of Hohenheim. Inst. of Animal Nutrition. | Eklund, M. | Mosenthin, R.
Imported soybean meals (SBM) from 3 leading SBM producing countries (Argentina, Brazil, US) were used in this study to determine total tract nutrient digestibilities in piglets. In total, 18 cornstarch-based diets containing different batches of SBM originating either from the US (n=6), Argentina (n=6) or Brazil (n=6) were formulated. Altogether, 36 barrows with an average initial body weight of 5.6 +/- 0.68 kg and 17 days old were used in 3 consecutive experiments with 3 periods and 12 piglets each. Every period included 5 days of adaptation to the diets followed by 5 days for quantitative collection of faeces. The dry matter (DM) digestibility was higher in the diets containing SBM from Brazil compared to the US (P0.05). The digestibilities of neutral detergent fibre (NDF) and acid detergent fibre (ADF) were higher in the diets containing SBM from Brazil and Argentina compared to the US (P0.05). The digestibility of ash was the highest in the diets containing SBM from Brazil (P0.05). Within diets of each SBM origin, nutrient digestibilities of NDF and ADF differed between individual batches (P0.05). Moreover, digestibilities of energy (DE) and crude protein (CP) differed within diets containing SBM batches from Brazil (P0.05) and digestibilities of ash differed within diets containing SBM batches from Argentina and Brazil (P0.05). In conclusion, the influence of SBM origin on nutrient digestibilities in SBM containing diets seems to be negligible, whereas nutrient digestibilities between individual SBM batches, independent of the respective origin, can vary considerably.
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