The objective was to test the hypothesis that there is no effect of origin or processing procedure on the standardized ileal digestibility (SID) of amino acids (AA) and crude protein (CP) in sunflower co-products. Six sources of sunflower meal (SFM) and 1 source of sunflower expellers (SFE) were obtained from Ukraine, Italy, Hungary, and the U.S. Each source of SFM or SFE was the only source of CP and AA in 1 diet and an N-free diet was also used for a total of 8 diets. Eight barrows (body weight: 28.5 ± 2.4 kg) had a T-cannula installed in the distal ileum and were allotted to 1 of the 8 diets using an 8 × 8 Latin square design with 8 periods. The Lys:CP ratio in the 6 sources of SFM ranged from 3.10 to 3.96% with CP concentrations ranging from 27.34 to 36.75%. Crude protein in SFE was 26.87% and the Lys:CP ratio was 3.51%. Concentrations of acid hydrolyzed ether extract in the 6 sources of SFM ranged from 0.60 to 3.11%, but SFE contained 8.77%. Results indicated that the SID of CP was lower (P < 0.05) in SFM from Hungary compared with all other sources of SFM except for 1 of the sources from Ukraine. There were no differences in the SID of Lys, Met, and Trp among sources of SFM, but for most of the remaining indispensable AA, the SFM from Hungary had less (P < 0.05) SID than the other sources. However, only few differences in SID of indispensable AA were observed among the other sources of SFM, but the SID of CP and all AA except Trp was greater (P < 0.05) in SFE compared with SFM. In conclusion, there were only few differences in the SID of the first limiting AA among SFM obtained from Ukraine, Hungary, Italy, and the U.S., but the SID of CP and AA was greater in SFE than in SFM indicating that processing of sunflower seeds influence the nutritional value.

中文翻译：

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向日葵压榨机的氨基酸回肠消化率比向日葵粕更高，但在饲喂生长猪时，不同来源的向日葵粕之间只有微小差异


目的是检验以下假设：来源或加工程序对向日葵副产品中氨基酸 (AA) 和粗蛋白 (CP) 的标准化回肠消化率 (SID) 没有影响。 6 种葵花籽粕 (SFM) 和 1 种葵花籽粕 (SFE) 购自乌克兰、意大利、匈牙利和美国。每种 SFM 或 SFE 都是 1 种日粮和 1 种 N- 中 CP 和 AA 的唯一来源。还采用自由饮食，总共8次饮食。八只手推车（体重：28.5 ± 2.4 kg）在回肠远端安装了 T 形插管，并使用 8 × 8 拉丁方设计（有 8 个周期）分配给 8 种饮食中的一种。 6 个 SFM 来源的 Lys:CP 比率范围为 3.10% 至 3.96%，CP 浓度范围为 27.34% 至 36.75%。 SFE中的粗蛋白为26.87%，Lys:CP比为3.51%。 6 个 SFM 来源中酸水解乙醚提取物的浓度范围为 0.60% 至 3.11%，但 SFE 含量为 8.77%。结果表明，与除乌克兰 1 个来源外的所有其他 SFM 来源相比，匈牙利 SFM 中的 CP SID 较低 (P < 0.05)。 SFM 来源之间的 Lys、Met 和 Trp 的 SID 没有差异，但对于大多数剩余的必需 AA，来自匈牙利的 SFM 的 SID 低于其他来源（P < 0.05）。然而，在SFM的其他来源中，不可缺少的AA的SID只有很少的差异，但是与SFM相比，SFE中CP和除Trp之外的所有AA的SID更大(P< 0.05)。总之，乌克兰、匈牙利、意大利和美国获得的 SFM 中第一限制性 AA 的 SID 差异不大，但 SFE 中的 CP 和 AA 的 SID 大于 SFM 中的 SID，表明葵花籽的加工影响营养价值。