AbstractThree experiments were conducted to test the hypothesis that standardized ileal digestibility (SID) of amino acids (AA), concentration of metabolizable (ME), and standardized total tract digestibility (STTD) of P in a new source of distillers dried grains with solubles (DDGS; ProCap DDGS) are greater than in conventional de-oiled DDGS. In experiment 1, nine barrows (initial BW: 67.2 ± 6.4 kg) with a T-cannula in the distal ileum were allotted to a triplicated 3 × 3 Latin square design with three diets and three periods for a total of nine replicate pigs per diet. Two diets included ProCap DDGS or de-oiled DDGS as the sole source of crude protein (CP) and AA. An N-free diet was used to determine the basal endogenous losses of CP and AA. Ileal digesta were collected on days 5 and 6 of each period after 4 d of adaptation to diets. Results from experiment 1 indicated that ProCap DDGS contained more CP and AA compared with de-oiled DDGS. The SID of all AA in ProCap DDGS was greater (P < 0.001) compared with de-oiled DDGS with the exception that the SID of Pro was not different between the two sources of DDGS. In experiment 2, 24 growing barrows (initial BW: 32.7 ± 3.1 kg) were housed individually in metabolism crates and used in a randomized complete block design and fed a corn-based diet or two diets containing corn and each source of DDGS with eight replicate pigs per diet. Fecal and urine samples were collected for 4 d after 7 d of adaptation. Results from experiment 2 indicated that concentration of ME in ProCap DDGS was greater (P < 0.05) compared with corn or de-oiled DDGS. In experiment 3, 32 growing barrows (initial BW: 20.2 ± 0.9 kg) were placed in metabolism crates and allotted to four diets with eight pigs per diet using a 2 × 2 factorial treatment arrangement. The de-oiled DDGS and ProCap DDGS were both included in a diet without microbial phytase and a diet with microbial phytase (500 units/kg diet). Pigs were adapted to the diets for 5 d and fecal samples were collected for 4 d. Results from experiment 3 indicated that inclusion of phytase in the diet containing ProCap DDGS increased (P < 0.05) the STTD of P, but addition of phytase to the de-oiled DDGS diet did not increase STTD of P (interaction, P < 0.001), but the STTD of P was greater (P < 0.05) in de-oiled DDGS compared with ProCap DDGS. In conclusion, ProCap DDGS has greater SID of AA and contains more ME, but has reduced STTD of P compared with conventional de-oiled DDGS.

中文翻译：

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当饲喂生长中的猪时，与脱油的DDGS相比，一种新的高蛋白蒸馏酒含可溶性干物质（DDGS）的氨基酸和能量的消化率更高，但磷的消化率却更低。

AbstractThree实验以测试标准化回肠消化率（假设SID氨基酸）（AA），可代谢（浓度ME），和标准化的总消化率（STTD P的）在干酒糟及可溶物的新来源（DDGS（ProCap DDGS）大于传统的脱油DDGS。在实验1中，将在回肠末端带有T形插管的9个公猪（初始体重：67.2±6.4千克）分配给一式三份的3×3拉丁方设计，其中包括三种日粮和三个时期，每种日粮总共有九头复制猪。两种饮食包括ProCap DDGS或脱油DDGS作为唯一的粗蛋白来源（CP）和AA。无氮饮食用于确定CP和AA的基础内源性损失。在适应饮食4天后的每个时期的第5天和第6天收集回肠消化物。实验1的结果表明，与脱油DDGS相比，ProCap DDGS包含更多的CP和AA。ProCap DDGS中所有AA的SID都更大（P<0.001）与除油DDGS相比，但Pro的SID在DDGS的两种来源之间没有差异。在实验2中，将24个生长中的公猪（初始体重：32.7±3.1千克）单独安置在新陈代谢箱中，并用于随机完整块设计，并饲喂以玉米为基础的日粮或两种日粮含玉米和每种DDGS的来源，重复八次猪每饮食。适应7天后，收集粪便和尿液样本4天。实验2的结果表明ProCap DDGS中的ME浓度更高（P<0.05），与玉米或脱油DDGS相比。在实验3中，将32个生长中的公猪（初始体重：20.2±0.9千克）放在代谢箱中，并采用2×2析因处理方案分配给四种日粮，每头日粮八头猪。不含微生物植酸酶的饮食和含微生物植酸酶的饮食（500单位/ kg饮食）均包含脱油DDGS和ProCap DDGS。使猪适应饮食5天，并收集粪便样本4天。实验3的结果表明，在含有ProCap DDGS的日粮中添加植酸酶可提高（P <0.05）P的STTD，但是在脱油的DDGS日粮中添加植酸酶不会提高P的STTD（相互作用，P <0.001） ，但P的STTD更大（P与ProCap DDGS相比，脱油DDGS中<0.05）。总之，与传统的脱油DDGS相比，ProCap DDGS具有更高的AA SID和更多的ME，但P的STTD却降低了。