1 材料与方法
1.1 伦理审查
1.2 样品采集
1.3 试验设计
表1 无氮饲粮和小麦饲粮组成(饲喂基础)Table 1 Composition of nitrogen-free diet and wheat diet (as-fed basis)% |
| 项目 Items | 无氮饲粮 Nitrogen- free diet | 小麦饲粮 Wheat diet |
|---|---|---|
| 玉米淀粉 Corn starch | 78.90 | 42.90 |
| 小麦 Wheat | 40.00 | |
| 豆油 Soybean oil | 3.00 | 3.00 |
| 蔗糖 Sucrose | 10.00 | 10.00 |
| 醋酸纤维素 Cellulose acetate | 4.00 | |
| 石粉 Limestone | 0.50 | 0.50 |
| 磷酸二氢钙 Ca(H2PO4)2 | 1.90 | 1.90 |
| 二氧化钛 TiO2 | 0.30 | 0.30 |
| 食盐 NaCl | 0.40 | 0.40 |
| 氧化镁 MgO | 0.10 | 0.10 |
| 碳酸钾 K2CO3 | 0.40 | 0.40 |
| 预混料 Premix | 0.50 | 0.50 |
| 合计 Total | 100.00 | 100.00 |
预混料为每千克饲粮提供 Premix provided the following per kilogram of diets:VA 4 200 IU,VD3 400 IU,VE 36 IU,VK3 1.2 mg,VB12 23 μg,VB2 5.63 mg,VB5 20.5 mg,VB3 28 mg,氯化胆碱 choline chloride 1.00 g,叶酸 folic acid 0.8 mg,VB1 3.4 mg,VB6 2.7 mg,VH 0.18 mg, Mn (as manganese sulfate) 40.0 mg,Fe (as ferrous sulfate) 70.0 mg,Zn (as zinc sulfate) 70.0 mg,Cu (as copper sulfate) 70 mg,I (as potassium iodide) 0.3 mg,Se (as sodium selenite) 0.3 mg。 |
1.4 饲养管理
1.5 食糜收集与处理
1.6 指标测定
1.6.1 样品的化学分析
1.6.2 生长猪对小麦AIDAA与SIDAA、AIDCP与SIDCP的测定
1.7 数据统计与分析
2 结果与分析
2.1 小麦的化学成分及AA含量
表2 10个小麦样品的氨基酸组成(饲喂基础)Table 2 Amino acid composition of 10 wheat samples (as-fed basis)% |
| 项目 Items | 样品编号 Sample number | 平均值 Mean | 最小值 Min | 最大值 Max | 变异系数 CV | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| XM1 | XM2 | XM3 | XM4 | XM5 | XM6 | XM7 | XM8 | XM9 | XM10 | |||||
| 必需氨基酸 EAA | ||||||||||||||
| 精氨酸 Arg | 0.48 | 0.57 | 0.51 | 0.52 | 0.58 | 0.55 | 0.58 | 0.49 | 0.58 | 0.65 | 0.55 | 0.48 | 0.65 | 9.62 |
| 组氨酸 His | 0.32 | 0.36 | 0.33 | 0.33 | 0.36 | 0.34 | 0.34 | 0.30 | 0.40 | 0.45 | 0.35 | 0.30 | 0.45 | 12.99 |
| 异亮氨酸 Ile | 0.40 | 0.44 | 0.40 | 0.41 | 0.46 | 0.42 | 0.45 | 0.35 | 0.47 | 0.53 | 0.43 | 0.35 | 0.53 | 11.74 |
| 亮氨酸 Leu | 0.80 | 0.85 | 0.79 | 0.82 | 0.90 | 0.83 | 0.85 | 0.71 | 0.88 | 1.03 | 0.85 | 0.71 | 1.03 | 9.93 |
| 赖氨酸 Lys | 0.41 | 0.44 | 0.41 | 0.43 | 0.46 | 0.43 | 0.44 | 0.38 | 0.46 | 0.59 | 0.45 | 0.38 | 0.59 | 12.70 |
| 蛋氨酸 Met | 0.29 | 0.36 | 0.31 | 0.35 | 0.34 | 0.45 | 0.36 | 0.35 | 0.23 | 0.28 | 0.33 | 0.23 | 0.36 | 17.37 |
| 苯丙氨酸 Phe | 0.60 | 0.60 | 0.58 | 0.56 | 0.68 | 0.57 | 0.59 | 0.48 | 0.66 | 0.71 | 0.60 | 0.48 | 0.71 | 11.21 |
| 苏氨酸 Thr | 0.32 | 0.36 | 0.32 | 0.33 | 0.36 | 0.33 | 0.34 | 0.29 | 0.36 | 0.41 | 0.34 | 0.29 | 0.41 | 9.46 |
| 色氨酸 Trp | 0.08 | 0.09 | 0.09 | 0.11 | 0.10 | 0.11 | 0.10 | 0.09 | 0.11 | 0.10 | 0.10 | 0.08 | 0.11 | 10.17 |
| 缬氨酸 Val | 0.49 | 0.52 | 0.49 | 0.50 | 0.56 | 0.51 | 0.51 | 0.45 | 0.55 | 0.63 | 0.52 | 0.45 | 0.63 | 9.79 |
| 非必需氨基酸 NEAA | ||||||||||||||
| 丙氨酸 Ala | 0.44 | 0.45 | 0.45 | 0.45 | 0.49 | 0.43 | 0.45 | 0.40 | 0.47 | 0.56 | 0.46 | 0.40 | 0.56 | 9.05 |
| 天冬氨酸 Asp | 0.62 | 0.63 | 0.61 | 0.63 | 0.69 | 0.63 | 0.65 | 0.56 | 0.67 | 0.88 | 0.66 | 0.56 | 0.69 | 12.94 |
| 半胱氨酸 Cys | 0.07 | 0.07 | 0.08 | 0.08 | 0.08 | 0.05 | 0.08 | 0.11 | 0.05 | 0.09 | 0.07 | 0.05 | 0.11 | 23.94 |
| 谷氨酸 Glu | 3.65 | 4.06 | 3.54 | 3.68 | 4.16 | 3.81 | 3.89 | 3.15 | 4.04 | 4.37 | 3.83 | 3.15 | 4.16 | 9.12 |
| 甘氨酸 Gly | 0.49 | 0.53 | 0.51 | 0.51 | 0.56 | 0.52 | 0.53 | 0.45 | 0.55 | 0.63 | 0.53 | 0.45 | 0.63 | 9.15 |
| 脯氨酸 Pro | 1.40 | 1.33 | 1.34 | 1.21 | 1.27 | 1.25 | 1.33 | 1.13 | 1.25 | 1.28 | 1.28 | 1.13 | 1.40 | 5.90 |
| 丝氨酸 Ser | 0.49 | 0.52 | 0.37 | 0.45 | 0.47 | 0.46 | 0.46 | 0.39 | 0.43 | 0.53 | 0.46 | 0.39 | 0.53 | 11.10 |
| 酪氨酸 Tyr | 0.16 | 0.24 | 0.20 | 0.17 | 0.18 | 0.19 | 0.23 | 0.18 | 0.25 | 0.21 | 0.20 | 0.16 | 0.25 | 15.15 |
2.2 小麦饲粮的化学成分与AA含量
表3 10个小麦饲粮的化学成分含量与氨基酸组成(饲喂基础)Table 3 Chemical component contents and amino acid composition of 10 wheat diets (as-fed basis)% |
| 项目 Items | 小麦饲粮编号 Wheat diet number | 平均值 Mean | 最小值 Min | 最大值 Max | 变异系数 CV | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RXM1 | RXM2 | RXM3 | RXM4 | RXM5 | RXM6 | RXM7 | RXM8 | RXM9 | RXM10 | |||||
| 干物质 DM | 89.54 | 89.57 | 89.65 | 89.55 | 89.70 | 89.50 | 89.90 | 89.77 | 89.53 | 89.83 | 89.66 | 89.50 | 89.90 | 0.16 |
| 粗蛋白质 CP | 5.44 | 4.89 | 4.47 | 4.86 | 6.28 | 5.00 | 4.38 | 4.04 | 5.32 | 4.39 | 4.91 | 4.04 | 6.28 | 13.32 |
| 必需氨基酸 EAA | ||||||||||||||
| 精氨酸 Arg | 0.23 | 0.25 | 0.21 | 0.23 | 0.26 | 0.21 | 0.30 | 0.19 | 0.26 | 0.32 | 0.25 | 0.19 | 0.32 | 16.88 |
| 组氨酸 His | 0.14 | 0.16 | 0.14 | 0.15 | 0.18 | 0.15 | 0.20 | 0.13 | 0.17 | 0.23 | 0.16 | 0.13 | 0.23 | 18.32 |
| 异亮氨酸 Ile | 0.17 | 0.19 | 0.15 | 0.17 | 0.21 | 0.15 | 0.19 | 0.15 | 0.20 | 0.24 | 0.18 | 0.15 | 0.24 | 16.07 |
| 亮氨酸 Leu | 0.35 | 0.39 | 0.33 | 0.36 | 0.40 | 0.33 | 0.38 | 0.31 | 0.41 | 0.46 | 0.37 | 0.31 | 0.46 | 12.29 |
| 赖氨酸 Lys | 0.17 | 0.19 | 0.15 | 0.17 | 0.20 | 0.16 | 0.20 | 0.17 | 0.20 | 0.28 | 0.19 | 0.15 | 0.28 | 19.38 |
| 蛋氨酸 Met | 0.05 | 0.04 | 0.05 | 0.03 | 0.10 | 0.07 | 0.06 | 0.06 | 0.07 | 0.09 | 0.06 | 0.03 | 0.10 | 34.75 |
| 苯丙氨酸 Phe | 0.23 | 0.28 | 0.22 | 0.25 | 0.28 | 0.23 | 0.28 | 0.21 | 0.30 | 0.33 | 0.26 | 0.21 | 0.33 | 14.18 |
| 苏氨酸 Thr | 0.13 | 0.16 | 0.12 | 0.15 | 0.16 | 0.14 | 0.18 | 0.12 | 0.16 | 0.21 | 0.15 | 0.12 | 0.21 | 17.83 |
| 色氨酸 Trp | 0.06 | 0.06 | 0.06 | 0.05 | 0.06 | 0.07 | 0.06 | 0.06 | 0.06 | 0.07 | 0.06 | 0.05 | 0.07 | 10.02 |
| 缬氨酸 Val | 0.20 | 0.22 | 0.19 | 0.22 | 0.24 | 0.20 | 0.24 | 0.18 | 0.24 | 0.28 | 0.22 | 0.18 | 0.28 | 13.58 |
| 非必需氨基酸 NEAA | ||||||||||||||
| 丙氨酸 Ala | 0.19 | 0.21 | 0.18 | 0.20 | 0.23 | 0.18 | 0.22 | 0.18 | 0.22 | 0.26 | 0.21 | 0.18 | 0.26 | 12.46 |
| 天冬氨酸 Asp | 0.29 | 0.30 | 0.25 | 0.28 | 0.33 | 0.26 | 0.34 | 0.26 | 0.32 | 0.44 | 0.31 | 0.25 | 0.44 | 18.21 |
| 半胱氨酸 Cys | 0.03 | 0.04 | 0.06 | 0.02 | 0.06 | 0.07 | 0.08 | 0.05 | 0.07 | 0.09 | 0.06 | 0.02 | 0.09 | 37.25 |
| 谷氨酸 Glu | 1.59 | 1.82 | 1.51 | 1.69 | 1.75 | 1.49 | 1.64 | 1.40 | 1.88 | 1.91 | 1.67 | 1.40 | 1.91 | 10.33 |
| 甘氨酸 Gly | 0.21 | 0.24 | 0.20 | 0.22 | 0.24 | 0.20 | 0.24 | 0.19 | 0.24 | 0.28 | 0.23 | 0.28 | 0.19 | 12.22 |
| 脯氨酸 Pro | 0.52 | 0.62 | 0.53 | 0.59 | 0.62 | 0.50 | 0.58 | 0.46 | 0.60 | 0.57 | 0.56 | 0.46 | 0.62 | 9.65 |
| 丝氨酸 Ser | 0.20 | 0.23 | 0.19 | 0.21 | 0.19 | 0.20 | 0.23 | 0.18 | 0.25 | 0.28 | 0.22 | 0.18 | 0.28 | 14.97 |
| 酪氨酸 Tyr | 0.08 | 0.10 | 0.08 | 0.08 | 0.09 | 0.08 | 0.11 | 0.07 | 0.10 | 0.12 | 0.09 | 0.07 | 0.11 | 16.31 |
2.3 生长猪对小麦的AIDCP与AIDAA
表4 生长猪对小麦的AIDCP与AIDAA(饲喂基础)Table 4 AIDCP and AIDAA of wheat for growing pigs (as-fed basis)% |
| 项目 Items | 样品编号 Sample number | 平均值 Mean | 最小值 Min | 最大值 Max | 变异系数 CV | P值 P-value | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| XM1 | XM2 | XM3 | XM4 | XM5 | XM6 | XM7 | XM8 | XM9 | XM10 | ||||||
| 粗蛋白质CP | 38.53ab | 26.52b | 27.56b | 23.78b | 52.27a | 26.40b | 33.04b | 23.09b | 36.76ab | 21.31b | 30.93 | 21.31 | 52.27 | 30.65 | 0.015 |
| 必需氨基酸EAA | |||||||||||||||
| 赖氨酸 Lys | 29.05bc | 31.01bc | 28.59bc | 26.86c | 29.23bc | 25.70c | 43.62a | 35.0 | 42.93a | 40.18ab | 33.22 | 25.70 | 43.62 | 20.34 | <0.010 |
| 异亮氨酸 Ile | 58.09bc | 51.85c | 58.22bc | 56.74c | 65.68a | 57.46c | 64.75ab | 64.70ab | 64.26ab | 65.68a | 60.74 | 51.85 | 65.68 | 7.99 | <0.010 |
| 亮氨酸 Leu | 67.90ab | 65.28b | 68.28ab | 66.03b | 73.00a | 67.83ab | 71.44a | 72.68a | 71.71a | 71.57a | 69.57 | 65.28 | 73.00 | 4.06 | <0.010 |
| 蛋氨酸 Met | 48.27d | 42.04d | 66.83bc | 40.07d | 77.21a | 65.80bc | 58.90c | 58.87c | 73.36ab | 58.42c | 58.98 | 40.07 | 77.21 | 21.20 | <0.010 |
| 色氨酸 Trp | 66.07bc | 62.00c | 68.54abc | 61.92c | 73.84ab | 69.77abc | 71.50abc | 77.44a | 72.83ab | 66.37bc | 66.37 | 61.92 | 77.44 | 7.34 | <0.010 |
| 苏氨酸 Thr | 16.83c | 17.40c | 24.74bc | 20.98c | 40.31ab | 26.84bc | 33.85abc | 24.25bc | 42.73ab | 47.83a | 29.57 | 16.83 | 47.83 | 37.10 | <0.010 |
| 苯丙氨酸 Phe | 72.59abcd | 70.16d | 73.06abcd | 72.21bcd | 77.28ab | 71.30cd | 76.56abc | 73.64abcd | 77.41ab | 78.06a | 74.23 | 70.16 | 78.06 | 3.84 | 0.012 |
| 组氨酸 His | 48.32cd | 38.01d | 46.07cd | 46.07cd | 63.14a | 44.78cd | 61.78ab | 54.37abc | 50.12bcd | 56.95abc | 50.96 | 38.01 | 63.14 | 15.68 | <0.010 |
| 精氨酸 Arg | 19.63a | 19.81a | 19.24a | 18.94a | 34.88a | 22.48bc | 21.41bc | 25.98abc | 30.66ab | 28.90abc | 24.19 | 18.94 | 34.88 | 23.23 | 0.010 |
| 缬氨酸 Val | 52.54abcd | 48.04d | 50.79cd | 50.04d | 58.96abc | 47.72d | 59.78ab | 51.41bcd | 60.26a | 60.90a | 54.04 | 47.72 | 60.90 | 9.84 | <0.010 |
| 非必需氨基酸 NEAA | |||||||||||||||
| 天冬氨酸 Asp | 40.00bc | 30.35c | 33.08c | 30.51c | 53.31a | 27.93c | 48.45ab | 34.27c | 48.21ab | 55.67a | 40.18 | 27.93 | 55.67 | 25.85 | <0.010 |
| 谷氨酸 Glu | 84.41abcd | 83.38bcd | 84.24abcd | 83.31bcd | 87.03ab | 82.19cd | 83.71abcd | 81.43d | 87.38a | 85.37abc | 84.25 | 81.43 | 87.38 | 2.27 | 0.025 |
| 丝氨酸 Ser | 46.44b | 40.51b | 43.98b | 44.07b | 47.65ab | 39.39b | 48.68ab | 41.49b | 60.01a | 60.16a | 47.24 | 39.39 | 60.16 | 15.67 | <0.010 |
| 甘氨酸 Gly | -63.71 | -43.55 | -45.38 | -65.96 | 0.66 | -72.52 | -70.13 | -71.60 | -14.70 | -16.47 | -46.33 | -72.52 | 0.66 | -58.83 | 0.547 |
| 丙氨酸 Ala | 21.47c | 17.53c | 22.30bc | 15.35c | 37.80ab | 22.59bc | 30.19abc | 26.32abc | 38.04ab | 38.49a | 27.01 | 15.35 | 38.49 | 32.16 | <0.010 |
| 酪氨酸 Tyr | 34.12cde | 40.66bcd | 46.79abc | 33.38de | 54.67a | 36.61cde | 29.77de | 26.11e | 51.01ab | 56.41a | 40.95 | 26.11 | 56.41 | 26.13 | <0.010 |
| 半胱氨酸 Cys | 41.51b | 34.38bc | 31.91bc | 31.50bc | 34.70bc | 25.52c | 26.35c | 23.17c | 70.22a | 81.12a | 40.04 | 23.17 | 81.12 | 49.14 | <0.010 |
| 脯氨酸 Pro | -188.87 | -144.69 | -228.59 | -275.73 | -107.09 | -304.48 | -279.28 | -328.17 | -141.58 | -196.73 | -219.52 | -328.17 | -107.09 | -34.50 | 0.351 |
同行数据肩标无字母或相同字母表示差异不显著(P>0.05),不同小写字母表示差异显著(P<0.05)。下表同。 | |
In the same row, values with no letter or the same letter superscripts mean no significant difference (P>0.05), while with different small letter superscripts mean significant difference (P<0.05). The same as below. |
2.4 生长猪对小麦的SIDCP与SIDAA
表5 生长猪对小麦的SIDCP与SIDAA(饲喂基础)Table 5 SIDCP and SIDAA of wheat for growing pigs (as-fed basis)% |
| 项目 Items | 样品编号 Sample number | 平均值 Mean | 最小值 Min | 最大值 Max | 变异系数 CV | P值 P-value | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| XM1 | XM2 | XM3 | XM4 | XM5 | XM6 | XM7 | XM8 | XM9 | XM10 | ||||||
| 粗蛋白质 CP | 70.08b | 60.32b | 70.32b | 63.06b | 84.50a | 64.56b | 73.66ab | 65.61b | 67.54b | 65.67b | 68.53 | 60.32 | 84.50 | 9.94 | <0.010 |
| 必需氨基酸 EAA | |||||||||||||||
| 赖氨酸 Lys | 71.83abc | 68.41abc | 74.58abc | 69.41abc | 64.41c | 70.53abc | 78.47a | 75.88abc | 77.58ab | 65.66bc | 71.68 | 64.41 | 78.47 | 6.79 | <0.010 |
| 异亮氨酸 Ile | 79.43ab | 71.52c | 81.22ab | 77.40bc | 82.75ab | 77.56bc | 83.01ab | 87.09a | 81.85ab | 81.94ab | 80.38 | 71.52 | 87.09 | 5.23 | 0.027 |
| 亮氨酸 Leu | 84.82 | 81.61 | 86.22 | 82.20 | 87.72 | 85.70 | 86.88 | 86.50 | 86.06 | 85.74 | 85.35 | 81.61 | 87.72 | 2.31 | 0.062 |
| 蛋氨酸 Met | 70.41c | 69.80c | 88.85a | 70.21c | 87.91a | 80.93ab | 75.46bc | 76.73bc | 87.73a | 69.68c | 77.77 | 69.68 | 88.85 | 10.34 | <0.010 |
| 色氨酸 Trp | 81.05cd | 82.10bcd | 88.33abc | 82.94bcd | 91.45ab | 85.93abcd | 90.45abc | 93.05a | 91.29ab | 77.98d | 86.46 | 77.98 | 93.05 | 6.02 | 0.026 |
| 苏氨酸 Thr | 72.06abc | 64.86c | 79.36ab | 68.50bc | 81.07ab | 73.38abc | 73.15abc | 68.40bc | 82.85a | 78.33ab | 74.20 | 64.86 | 82.85 | 8.10 | 0.027 |
| 苯丙氨酸 Phe | 82.79bc | 78.76c | 83.71abc | 81.64bc | 85.76ab | 81.56bc | 88.10a | 84.75ab | 85.39ab | 85.26ab | 83.77 | 78.76 | 88.10 | 3.18 | <0.010 |
| 组氨酸 His | 70.10bc | 60.50c | 72.52abc | 69.85bc | 83.84a | 69.17bc | 80.02ab | 74.00ab | 74.95ab | 75.94ab | 73.09 | 60.50 | 83.84 | 8.77 | 0.041 |
| 精氨酸 Arg | 63.60bcd | 61.53cd | 69.34abcd | 64.05bcd | 73.96abc | 70.21abcd | 58.25d | 79.34a | 74.64ab | 70.46abcd | 68.50 | 58.25 | 79.34 | 9.60 | 0.012 |
| 缬氨酸 Val | 80.71abc | 74.82c | 80.05abc | 77.83abc | 82.57ab | 76.22bc | 83.26a | 82.44ab | 83.54a | 80.95abc | 80.24 | 74.82 | 83.54 | 3.77 | 0.044 |
| 非必需氨基酸 NEAA | |||||||||||||||
| 天冬氨酸 Asp | 79.11ab | 67.39c | 77.77abc | 70.00bc | 87.43a | 71.66bc | 81.23abc | 78.04abc | 82.86ab | 81.42abc | 77.69 | 67.39 | 87.43 | 8.05 | 0.035 |
| 谷氨酸 Glu | 92.49 | 90.45 | 92.73 | 90.91 | 94.37 | 90.80 | 91.60 | 90.66 | 94.22 | 92.13 | 92.04 | 90.45 | 94.37 | 1.55 | 0.109 |
| 丝氨酸 Ser | 77.70 | 68.65 | 78.11 | 73.77 | 82.11 | 70.91 | 76.77 | 76.51 | 85.45 | 82.59 | 77.25 | 68.65 | 85.45 | 6.79 | 0.052 |
| 甘氨酸 Gly | 322.58 | 290.30 | 352.00 | 299.72 | 337.84 | 326.00 | 263.85 | 359.90 | 314.71 | 271.80 | 313.87 | 263.85 | 359.90 | 10.30 | 0.292 |
| 丙氨酸 Ala | 54.30 | 47.29 | 57.50 | 46.87 | 65.98 | 58.03 | 59.00 | 62.64 | 66.86 | 63.28 | 58.18 | 46.87 | 66.86 | 12.08 | 0.055 |
| 酪氨酸 Tyr | 76.78bc | 74.14c | 88.83ab | 75.99bc | 91.62a | 77.90bc | 62.33d | 74.93c | 85.93abc | 85.27abc | 79.36 | 62.23 | 91.62 | 10.94 | <0.010 |
| 半胱氨酸 Cys | 69.03b | 54.79c | 47.47cd | 41.79cd | 50.95cd | 39.16d | 38.34d | 41.91cd | 84.02a | 90.71a | 55.81 | 38.34 | 90.71 | 34.07 | <0.010 |
| 脯氨酸 Pro | 11.81 | 24.65 | -30.34 | -99.14 | 63.42 | -94.63 | -97.74 | -99.22 | 32.94 | -13.33 | -30.16 | -99.22 | 63.42 | -209.82 | 0.605 |
回肠末端内源性氨基酸损失(%):天冬氨酸,0.12;谷氨酸,0.14;丝氨酸,0.07;组氨酸,0.04;甘氨酸,0.90;苏氨酸,0.08;精氨酸,0.11;丙氨酸0.07;酪氨酸,0.04;半胱氨酸,0.01;缬氨酸,0.06;蛋氨酸,0.01;苯丙氨酸,0.03;异亮氨酸,0.04;亮氨酸,0.07;赖氨酸,0.08;脯氨酸,1.17;色氨酸,0.01。 | |
IAAend(%):Asp,0.12;Glu,0.14;Ser,0.07;His,0.04;Gly,0.90;Thr,0.08;Arg,0.11;Ala,0.07;Tyr,0.04;Cys,0.01;Val,0.06;Met,0.01;Phe,0.03;Ile,0.04;Leu,0.07;Lys,0.08;Pro,1.17;Trp,0.01。 |
2.5 SIDCP、SIDLys、SIDMet、SIDTrp、SIDThr与小麦中化学成分的相关性分析
表6 小麦的化学成分与SIDCP、SIDLys、SIDMet、SIDTrp、SIDThr的相关性Table 6 Correlation between SIDCP, SIDLys, SIDMet, SIDTrp, SIDThr and chemical components in wheat |
| 项目 Items | SIDCP | SIDLys | SIDMet | SIDTrp | SIDThr | DM | CP | EE | Ash | CF | NDF | ADF | Ca | TP | Xylans | TS | Lys | Met | Thr |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SIDLys | 0.056 | ||||||||||||||||||
| SIDMet | 0.546 | 0.328 | |||||||||||||||||
| SIDTrp | 0.478 | 0.575 | 0.721* | ||||||||||||||||
| SIDThr | 0.591 | 0.206 | 0.733* | 0.288 | |||||||||||||||
| DM | 0.204 | 0.724* | 0.724* | 0.630 | 0.647* | ||||||||||||||
| CP | 0.192 | -0.130 | 0.022 | -0.066 | 0.367 | 0.005 | |||||||||||||
| EE | -0.089 | -0.333 | -0.673* | -0.423 | -0.387 | -0.464 | 0.326 | ||||||||||||
| Ash | -0.335 | -0.128 | -0.280 | -0.415 | -0.097 | -0.178 | -0.224 | -0.040 | |||||||||||
| CF | -0.596 | -0.301 | -0.570 | -0.453 | -0.450 | -0.534 | -0.008 | 0.203 | 0.603 | ||||||||||
| NDF | 0.116 | -0.883** | -0.177 | -0.595 | -0.009 | -0.618 | -0.015 | 0.059 | 0.187 | 0.073 | |||||||||
| ADF | -0.402 | -0.402 | -0.716* | -0.894** | -0.278 | -0.551 | -0.200 | 0.421 | 0.564 | 0.539 | 0.458 | ||||||||
| Ca | -0.140 | -0.140 | 0.184 | -0.179 | 0.432 | 0.054 | 0.647* | -0.044 | -0.039 | 0.322 | 0.137 | 0.002 | |||||||
| TP | -0.077 | -0.077 | -0.275 | -0.394 | 0.131 | -0.285 | 0.622 | 0.311 | 0.572 | 0.520 | 0.276 | 0.298 | 0.494 | ||||||
| Xylans | 0.399 | 0.014 | 0.494 | 0.691* | 0.058 | 0.296 | -0.420 | -0.199 | -0.291 | -0.380 | -0.086 | -0.516 | -0.315 | -0.430 | |||||
| TS | 0.371 | -0.074 | 0.265 | -0.061 | 0.184 | -0.103 | -0.075 | -0.347 | -0.453 | -0.550 | 0.401 | -0.120 | -0.138 | -0.472 | -0.122 | ||||
| Lys | 0.012 | -0.418 | -0.200 | -0.501 | 0.410 | -0.099 | 0.685* | 0.385 | 0.300 | 0.259 | 0.331 | 0.403 | 0.643* | 0.824** | -0.441 | -0.314 | |||
| Met | -0.119 | -0.197 | -0.121 | 0.057 | -0.518 | -0.500 | 0.111 | -0.013 | 0.021 | 0.252 | 0.101 | -0.259 | -0.074 | 0.131 | -0.113 | 0.157 | -0.339 | ||
| Thr | 0.054 | -0.519 | -0.128 | -0.460 | 0.401 | -0.093 | 0.702* | 0.470 | 0.057 | 0.104 | 0.381 | 0.313 | 0.683* | 0.671* | -0.305 | -0.213 | 0.943** | -0.342 | |
| Trp | -0.066 | 0.065 | 0.244 | 0.155 | 0.293 | 0.256 | 0.701* | -0.242 | -0.318 | -0.167 | -0.109 | -0.508 | 0.539 | 0.295 | -0.248 | 0.076 | 0.305 | 0.171 | 0.310 |
SIDCP:粗蛋白质标准回肠消化率 apparent ileal digestibility of CP;SIDLys:赖氨酸标准回肠消化率 apparent ileal digestibility of Lys;SIDMet:蛋氨酸标准回肠消化率 apparent ileal digestibility of Met;SIDTrp:色氨酸标准回肠消化率 apparent ileal digestibility of Trp;SIDThr:苏氨酸标准回肠消化率 apparent ileal digestibility of Thr;DM:干物质 dry matter;CP:粗蛋白质 crude protein;EE:粗脂肪 ether extract;Ash:粗灰分 crude ash;CF:粗纤维 crude fiber;NDF:中性洗涤纤维 neutral detergent fiber;ADF:酸性洗涤纤维 acid detergent fiber;Ca:钙 calcium;TP:总磷 total phosphorus;Xylans:木聚糖 xylans;TS:总淀粉 total starch;Lys:赖氨酸 lysine;Met:蛋氨酸 methionine;Thr:苏氨酸 threonine;Trp:色氨酸 tryptophan。下表同 the same as below。 “**”表示相关性极显著(P<0.01),“*”表示相关性显著(P<0.05)。 | |
“**” mean extremely significant correlation (P<0.01), and “*” mean significant correlation (P<0.05). |
2.6 生长猪对小麦SIDCP、SIDLys、SIDMet、SIDTrp、SIDThr的预测方程
表7 基于小麦有效化学成分的SIDCP、SIDLys、SIDMet、SIDTrp、SIDThr的预测方程Table 7 Prediction equations for SIDCP, SIDLys, SIDMet, SIDTrp, SIDThr based on effective chemical components of wheat |
| 项目 Items | 预测方程 Prediction equations | 剩余标准差 RSD | 决定系数 R2 | P值 P-value |
|---|---|---|---|---|
| 1 | SIDCP=87.482-12.148×CF | 5.80 | 0.356 | 0.069 |
| 2 | SIDLys=113.111-2.804×NDF | 1.84 | 0.873 | <0.010 |
| 3 | SIDLys=123.151-2.583NDF-43.487×TP | 1.36 | 0.922 | 0.028 |
| 4 | SIDMet=-1 054.812+12.959×DM | 5.90 | 0.524 | 0.018 |
| 5 | SIDTrp=118.828-10.603×ADF | 2.48 | 0.799 | <0.010 |
| 6 | SIDTrp=146.182-13.035×ADF-203.363×Trp | 1.67 | 0.897 | 0.014 |
| 7 | SIDThr=-681.144+8.643×DM | 4.86 | 0.419 | 0.043 |

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