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首页> 外文期刊>Poultry Science >Apparent metabolizable energy and apparent ileal amino acid digestibility of low and ultra-low oligosaccharide soybean meals fed to broiler chickens.
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Apparent metabolizable energy and apparent ileal amino acid digestibility of low and ultra-low oligosaccharide soybean meals fed to broiler chickens.

机译：饲喂肉鸡的低和超低寡糖豆粕的表观代谢能和表观回肠氨基酸消化率。

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Four experiments were conducted using 1,992 Ross x Ross 708 male broilers to determine AMEn and apparent ileal amino acid digestibility (AIAAD) of low-oligosaccharide (LOSBM), ultra-low oligosaccharide (ULSBM), and control soybean meal (CSBM) fed to broilers from 20 to 31 d of age. An AMEn assay was conducted in experiments 1 and 2, whereas AIAAD was determined in experiments 3 and 4. Chicks were randomly assigned to 3, 4, 2, or 3 dietary treatments, respectively, for experiments 1, 2, 3, or 4. The additional treatment in experiments 2 and 4 was to evaluate ULSBM. In the AMEn assays, treatments were fed from 20 to 29 d of age and a 48-h excreta collection period was conducted from 27 to 29 d of age. Treatment 1 consisted of a basal diet and treatments 2, 3, and 4 consisted of 70% of the basal diet plus 30% CSBM, LOSBM, or ULSBM, respectively. The difference method was used to determine AMEn utilizing an N correction factor to account for N retention. To determine AIAAD, broilers were fed semi-purified diets with CSBM, LOSBM, or ULSBM as the sole source of amino acids (AA) from 26 to 31 d of age with digesta collection occurring at 31 d of age. In experiment 1, LOSBM had 194 kcal/kg more AMEn compared with CSBM (P=0.011). Apparent MEn value of LOSBM was 141 and 134 kcal/kg higher (P=0.012) compared with CSBM and ULSBM, respectively, in experiment 2. Digestible Lys, Met, Ile, and Val concentrations were higher (P<0.001) for LOSBM vs. CSBM in experiment 3 even though digestibility coefficients were lower (P<0.001) for LOSBM. In experiment 4, higher (P<0.001) concentrations of digestible Met, Lys, Thr, Val, and Ile were observed for ULSBM and LOSBM compared with CSBM. In conclusion, genetically selected soybean meals with reduced stachyose and raffinose concentrations had higher AMEn and AIAAD values compared with CSBM.
机译：使用1,992 Ross x Ross 708雄性肉鸡进行了四个实验，以确定低寡糖（LOSBM），超低寡糖（ULSBM）和对照的AME n 和表观回肠氨基酸消化率（AIAAD）豆粕（CSBM）饲喂20至31天的肉鸡。在实验1和2中进行了AME n 分析，而在实验3和4中进行了AIAAD测定。对于实验1，将小鸡分别随机分配给3、4、2或3种饮食处理，2、3或4。实验2和4中的其他处理方法是评估ULSBM。在AME n 分析中，治疗的年龄为20至29 d，而排泄物收集的时间为27至29 d，为48小时。处理1由基础饮食组成，处理2、3和4由基础饮食的70％加上30％CSBM，LOSBM或ULSBM组成。差异法用于确定AME n ，利用N校正因子来解释N保留。为了确定AIAAD，向肉鸡饲喂半纯化日粮，其中CSBM，LOSBM或ULSBM是26至31 d年龄的唯一氨基酸（AA）来源，消化物收集发生在31 d年龄。在实验1中，LOSBM的AME n 比CSBM高194 kcal / kg（P = 0.011）。在实验2中，LOSBM的表观ME n 值分别比CSBM和ULSBM高141和134 kcal / kg（P = 0.012）。较高的可消化Lys，Met，Ile和Val浓度实验3中的LOSBM与CSBM相比（P <0.001），尽管LOSBM的消化率较低（P <0.001）。在实验4中，与CSBM相比，ULSBM和LOSBM的可消化Met，Lys，Thr，Val和Ile的浓度更高（P <0.001）。总之，与CSBM相比，遗传选择的水苏糖和棉子糖浓度降低的豆粕的AME n 和AIAAD值更高。

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