Acta Prataculturae Sinica ›› 2021, Vol. 30 ›› Issue (1): 170-180.DOI: 10.11686/cyxb2020085
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Shuang WU(), Yu-xiang ZHOU(), Rou JIA, Ya-dong JIN, Wan-zong YANG
Received:
2020-03-05
Revised:
2020-04-27
Online:
2021-01-20
Published:
2021-01-08
Contact:
Yu-xiang ZHOU
Shuang WU, Yu-xiang ZHOU, Rou JIA, Ya-dong JIN, Wan-zong YANG. Effects of cellulase treatment of buckwheat straw on fiber structure and meat quality of Tan sheep[J]. Acta Prataculturae Sinica, 2021, 30(1): 170-180.
项目 Items | 对照组 Control group | 试验Ⅰ组 Trial group Ⅰ | 试验Ⅱ组 Trial group Ⅱ |
---|---|---|---|
原料Ingredients | |||
荞麦秸秆Buckwheat straw (%) | 28.00 | 28.00 | 28.00 |
玉米青贮Corn silage (%) | 42.00 | 42.00 | 42.00 |
玉米Corn (%) | 10.40 | 10.40 | 10.40 |
豆粕Soybean meal (%) | 15.80 | 15.80 | 15.80 |
麸皮Wheat bran (%) | 2.00 | 2.00 | 2.00 |
预混料Premix1) | 1.00 | 1.00 | 1.00 |
食盐NaCl (%) | 0.80 | 0.80 | 0.80 |
合计Total | 100.00 | 100.00 | 100.00 |
营养水平Nutrient levels2) | |||
代谢能Metabolic energy (ME, MJ·kg -1) | 8.75 | 9.68 | 9.07 |
粗蛋白质Crude protein (%) | 12.31 | 12.54 | 12.43 |
中性洗涤纤维Neutral detergent fiber (%) | 53.85 | 50.20 | 50.57 |
酸性洗涤纤维Acid detergent fiber (%) | 36.02 | 32.68 | 33.05 |
钙Ca (%) | 0.29 | 0.31 | 0.30 |
磷P (%) | 0.25 | 0.26 | 0.26 |
Table 1 Composition and nutrient levels of diets (dry matter basis)
项目 Items | 对照组 Control group | 试验Ⅰ组 Trial group Ⅰ | 试验Ⅱ组 Trial group Ⅱ |
---|---|---|---|
原料Ingredients | |||
荞麦秸秆Buckwheat straw (%) | 28.00 | 28.00 | 28.00 |
玉米青贮Corn silage (%) | 42.00 | 42.00 | 42.00 |
玉米Corn (%) | 10.40 | 10.40 | 10.40 |
豆粕Soybean meal (%) | 15.80 | 15.80 | 15.80 |
麸皮Wheat bran (%) | 2.00 | 2.00 | 2.00 |
预混料Premix1) | 1.00 | 1.00 | 1.00 |
食盐NaCl (%) | 0.80 | 0.80 | 0.80 |
合计Total | 100.00 | 100.00 | 100.00 |
营养水平Nutrient levels2) | |||
代谢能Metabolic energy (ME, MJ·kg -1) | 8.75 | 9.68 | 9.07 |
粗蛋白质Crude protein (%) | 12.31 | 12.54 | 12.43 |
中性洗涤纤维Neutral detergent fiber (%) | 53.85 | 50.20 | 50.57 |
酸性洗涤纤维Acid detergent fiber (%) | 36.02 | 32.68 | 33.05 |
钙Ca (%) | 0.29 | 0.31 | 0.30 |
磷P (%) | 0.25 | 0.26 | 0.26 |
项目Items | 对照组Control group | 试验Ⅰ组Trial group Ⅰ | 试验Ⅱ组Trial group Ⅱ | P |
---|---|---|---|---|
干物质DM | 95.57±0.64a | 27.76±0.54b | 26.47±0.20b | <0.001 |
粗蛋白CP | 3.98±0.15a | 4.26±0.30a | 4.18±0.23a | 0.268 |
粗脂肪EE | 0.75±0.07a | 0.79±0.21a | 0.80±0.21a | 0.933 |
中性洗涤纤维NDF | 67.84±1.51a | 54.44±1.51b | 55.76±3.06b | <0.001 |
酸性洗涤纤维ADF | 44.57±1.96a | 36.23±2.36b | 38.43±1.08b | 0.004 |
钙Ca | 0.39±0.02a | 0.43±0.04a | 0.42±0.02a | 0.203 |
磷P | 0.14±0.01a | 0.16±0.12a | 0.15±0.01a | 0.911 |
Table 2 Effect of buckwheat straw treated with cellulase on nutrient contents (DM basis, %)
项目Items | 对照组Control group | 试验Ⅰ组Trial group Ⅰ | 试验Ⅱ组Trial group Ⅱ | P |
---|---|---|---|---|
干物质DM | 95.57±0.64a | 27.76±0.54b | 26.47±0.20b | <0.001 |
粗蛋白CP | 3.98±0.15a | 4.26±0.30a | 4.18±0.23a | 0.268 |
粗脂肪EE | 0.75±0.07a | 0.79±0.21a | 0.80±0.21a | 0.933 |
中性洗涤纤维NDF | 67.84±1.51a | 54.44±1.51b | 55.76±3.06b | <0.001 |
酸性洗涤纤维ADF | 44.57±1.96a | 36.23±2.36b | 38.43±1.08b | 0.004 |
钙Ca | 0.39±0.02a | 0.43±0.04a | 0.42±0.02a | 0.203 |
磷P | 0.14±0.01a | 0.16±0.12a | 0.15±0.01a | 0.911 |
项目Items | 对照组Control group | 试验Ⅰ组Trial group Ⅰ | 试验Ⅱ组Trial group Ⅱ | P |
---|---|---|---|---|
乳酸菌Lactic acid bacteria (×105 CFU·g-1) | 2.75±1.34 b | 25.15±2.89a | 21.65±0.49a | 0.003 |
酵母菌 Yeast (×105 CFU·g-1) | 1.85±0.07a | 1.58±0.11a | 1.70±0.14a | 0.199 |
霉菌Mold (×102 CFU·g-1) | 7.90±0.14a | 0.25±0.07b | 0.45±0.07b | <0.001 |
Table 3 Effect of buckwheat straw treated with cellulase on microorganism quantities
项目Items | 对照组Control group | 试验Ⅰ组Trial group Ⅰ | 试验Ⅱ组Trial group Ⅱ | P |
---|---|---|---|---|
乳酸菌Lactic acid bacteria (×105 CFU·g-1) | 2.75±1.34 b | 25.15±2.89a | 21.65±0.49a | 0.003 |
酵母菌 Yeast (×105 CFU·g-1) | 1.85±0.07a | 1.58±0.11a | 1.70±0.14a | 0.199 |
霉菌Mold (×102 CFU·g-1) | 7.90±0.14a | 0.25±0.07b | 0.45±0.07b | <0.001 |
项目 Items | 对照组 Control group | 试验Ⅰ组Trial group Ⅰ | 试验Ⅱ组Trial group Ⅱ | P |
---|---|---|---|---|
pH45 min | 6.80±0.17a | 6.65±0.04a | 6.52±0.31a | 0.221 |
pH24 h | 5.88±0.05a | 5.86±0.09a | 5.80±0.10a | 0.129 |
失水率Water loss rate (%) | 44.78±2.03a | 42.34±2.25a | 42.88±4.62a | 0.549 |
滴水损失Drip loss (%) | 2.30±0.24a | 2.12±0.60a | 2.29±0.70a | 0.833 |
熟肉率Cooked meat rate (%) | 45.31±4.29b | 49.66±1.51a | 50.09±1.85a | 0.034 |
剪切力Shear force (N) | 48.33±2.92a | 43.83±1.68b | 42.61±1.94b | 0.045 |
大理石花纹评分Marbling score | 1.60±0.55a | 2.00±0.00a | 1.80±0.45a | 0.335 |
肉色Muscle color | ||||
红度值a*-value | 19.74±1.56a | 19.92±1.90a | 18.84±0.83a | 0.489 |
黄度值b*-value | 7.29±1.23a | 8.21±1.90a | 8.11±0.64a | 0.521 |
亮度值L*-value | 42.19±2.43a | 44.04±3.21a | 45.61±2.94a | 0.212 |
脂肪颜色Fat color | ||||
红度值a*-value | 6.04±1.97a | 6.28±0.97a | 6.78±1.21a | 0.717 |
黄度值b*-value | 5.24±1.78a | 6.21±2.78a | 7.50±1.46a | 0.268 |
亮度值L*-value | 86.12±4.25a | 86.34±2.04a | 84.40±4.37a | 0.672 |
Table 4 Effect of buckwheat straw treated with cellulase on mutton physicochemical properties of Tan sheep
项目 Items | 对照组 Control group | 试验Ⅰ组Trial group Ⅰ | 试验Ⅱ组Trial group Ⅱ | P |
---|---|---|---|---|
pH45 min | 6.80±0.17a | 6.65±0.04a | 6.52±0.31a | 0.221 |
pH24 h | 5.88±0.05a | 5.86±0.09a | 5.80±0.10a | 0.129 |
失水率Water loss rate (%) | 44.78±2.03a | 42.34±2.25a | 42.88±4.62a | 0.549 |
滴水损失Drip loss (%) | 2.30±0.24a | 2.12±0.60a | 2.29±0.70a | 0.833 |
熟肉率Cooked meat rate (%) | 45.31±4.29b | 49.66±1.51a | 50.09±1.85a | 0.034 |
剪切力Shear force (N) | 48.33±2.92a | 43.83±1.68b | 42.61±1.94b | 0.045 |
大理石花纹评分Marbling score | 1.60±0.55a | 2.00±0.00a | 1.80±0.45a | 0.335 |
肉色Muscle color | ||||
红度值a*-value | 19.74±1.56a | 19.92±1.90a | 18.84±0.83a | 0.489 |
黄度值b*-value | 7.29±1.23a | 8.21±1.90a | 8.11±0.64a | 0.521 |
亮度值L*-value | 42.19±2.43a | 44.04±3.21a | 45.61±2.94a | 0.212 |
脂肪颜色Fat color | ||||
红度值a*-value | 6.04±1.97a | 6.28±0.97a | 6.78±1.21a | 0.717 |
黄度值b*-value | 5.24±1.78a | 6.21±2.78a | 7.50±1.46a | 0.268 |
亮度值L*-value | 86.12±4.25a | 86.34±2.04a | 84.40±4.37a | 0.672 |
项目Items | 对照组Control group | 试验Ⅰ组Trial group Ⅰ | 试验Ⅱ组Trial group Ⅱ | P |
---|---|---|---|---|
水分Total water | 77.60±0.69a | 76.37±0.88a | 76.49±1.45a | 0.357 |
粗蛋白质CP | 13.61±0.34b | 14.22±0.43a | 14.23±0.34a | 0.009 |
粗脂肪EE | 7.64±0.73a | 8.04±1.02a | 8.25±0.58a | 0.572 |
Table 5 Effect of buckwheat straw treated with cellulase on mutton nutritient contents of Tan sheep (%)
项目Items | 对照组Control group | 试验Ⅰ组Trial group Ⅰ | 试验Ⅱ组Trial group Ⅱ | P |
---|---|---|---|---|
水分Total water | 77.60±0.69a | 76.37±0.88a | 76.49±1.45a | 0.357 |
粗蛋白质CP | 13.61±0.34b | 14.22±0.43a | 14.23±0.34a | 0.009 |
粗脂肪EE | 7.64±0.73a | 8.04±1.02a | 8.25±0.58a | 0.572 |
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