Acta Prataculturae Sinica ›› 2021, Vol. 30 ›› Issue (3): 81-88.DOI: 10.11686/cyxb2020162
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Mang-li XIONG1,2(), Xu-jin WU1,2, Xiao-fu ZHU1,2, Wen-juan ZHANG1,2
Received:
2020-04-08
Revised:
2020-05-25
Online:
2021-03-20
Published:
2021-03-09
Mang-li XIONG, Xu-jin WU, Xiao-fu ZHU, Wen-juan ZHANG. Effects of different apple pomace levels on lactation performance, nutrient apparent digestibility, serum biochemical indices and the rumen pH of Guanzhong dairy goats[J]. Acta Prataculturae Sinica, 2021, 30(3): 81-88.
项目 Items | 苹果渣添加水平 Apple pomace level | ||||
---|---|---|---|---|---|
0 | 9% | 18% | 27% | 36% | |
原料 Raw material | |||||
玉米Corn (%) | 28.60 | 25.70 | 23.50 | 21.40 | 19.30 |
豆粕Soybean meal (%) | 14.00 | 13.50 | 13.30 | 12.70 | 12.40 |
麦麸Wheat bran (%) | 4.00 | 4.00 | 4.00 | 4.00 | 4.00 |
苜蓿干草Dry alfalfa hay (%) | 48.40 | 42.80 | 36.20 | 29.90 | 23.30 |
石粉Limestone (%) | 0.35 | 0.35 | 0.35 | 0.35 | 0.35 |
磷酸氢钙CaHPO4 (%) | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 |
食盐NaCl (%) | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 |
预混料Premix1) (%) | 4.00 | 4.00 | 4.00 | 4.00 | 4.00 |
合计 Total | 100 | 100 | 100 | 100 | 100 |
营养水平Nutrient levels2) | |||||
消化能 Digestible energy (DE, MJ·kg-1) | 10.52 | 10.95 | 11.15 | 11.24 | 11.30 |
粗蛋白Crude protein (%) | 13.50 | 13.45 | 13.47 | 13.46 | 13.48 |
中性洗涤纤维Neutral detergent fiber (%) | 41.28 | 41.31 | 41.38 | 41.37 | 41.26 |
酸性洗涤纤维Acid detergent fiber (%) | 29.50 | 29.46 | 29.37 | 29.58 | 29.49 |
钙 Calcium (%) | 0.42 | 0.39 | 0.45 | 0.47 | 0.41 |
磷 Phosphorus (%) | 0.38 | 0.35 | 0.34 | 0.36 | 0.35 |
Table 1 Raw material composition and nutrient content of the experiment diet
项目 Items | 苹果渣添加水平 Apple pomace level | ||||
---|---|---|---|---|---|
0 | 9% | 18% | 27% | 36% | |
原料 Raw material | |||||
玉米Corn (%) | 28.60 | 25.70 | 23.50 | 21.40 | 19.30 |
豆粕Soybean meal (%) | 14.00 | 13.50 | 13.30 | 12.70 | 12.40 |
麦麸Wheat bran (%) | 4.00 | 4.00 | 4.00 | 4.00 | 4.00 |
苜蓿干草Dry alfalfa hay (%) | 48.40 | 42.80 | 36.20 | 29.90 | 23.30 |
石粉Limestone (%) | 0.35 | 0.35 | 0.35 | 0.35 | 0.35 |
磷酸氢钙CaHPO4 (%) | 0.15 | 0.15 | 0.15 | 0.15 | 0.15 |
食盐NaCl (%) | 0.50 | 0.50 | 0.50 | 0.50 | 0.50 |
预混料Premix1) (%) | 4.00 | 4.00 | 4.00 | 4.00 | 4.00 |
合计 Total | 100 | 100 | 100 | 100 | 100 |
营养水平Nutrient levels2) | |||||
消化能 Digestible energy (DE, MJ·kg-1) | 10.52 | 10.95 | 11.15 | 11.24 | 11.30 |
粗蛋白Crude protein (%) | 13.50 | 13.45 | 13.47 | 13.46 | 13.48 |
中性洗涤纤维Neutral detergent fiber (%) | 41.28 | 41.31 | 41.38 | 41.37 | 41.26 |
酸性洗涤纤维Acid detergent fiber (%) | 29.50 | 29.46 | 29.37 | 29.58 | 29.49 |
钙 Calcium (%) | 0.42 | 0.39 | 0.45 | 0.47 | 0.41 |
磷 Phosphorus (%) | 0.38 | 0.35 | 0.34 | 0.36 | 0.35 |
项目 Items | 苹果渣添加水平 Apple pomace level | ||||
---|---|---|---|---|---|
0 | 9% | 18% | 27% | 36% | |
干物质采食量Dry matter intake (DMI, kg·d-1) | 2.27±0.61 | 2.31±0.81 | 2.34±0.81 | 2.38±0.81 | 2.35±0.81 |
产奶量Milk yield (MY, kg·d-1) | 1.59±0.10Bb | 1.61±0.10Bb | 2.22±0.61Aa | 2.16±0.15Aa | 1.63±0.13Bb |
4%校正乳产量4% Fat corrected milk (FCM, kg·d-1) | 1.58±0.10Bb | 1.59±0.10Bb | 2.17±0.55Aa | 2.09±0.15Aa | 1.57±0.12Bb |
Table 2 Effects of different apple pomace levels on lactation performance of Guanzhong dairy goats
项目 Items | 苹果渣添加水平 Apple pomace level | ||||
---|---|---|---|---|---|
0 | 9% | 18% | 27% | 36% | |
干物质采食量Dry matter intake (DMI, kg·d-1) | 2.27±0.61 | 2.31±0.81 | 2.34±0.81 | 2.38±0.81 | 2.35±0.81 |
产奶量Milk yield (MY, kg·d-1) | 1.59±0.10Bb | 1.61±0.10Bb | 2.22±0.61Aa | 2.16±0.15Aa | 1.63±0.13Bb |
4%校正乳产量4% Fat corrected milk (FCM, kg·d-1) | 1.58±0.10Bb | 1.59±0.10Bb | 2.17±0.55Aa | 2.09±0.15Aa | 1.57±0.12Bb |
项目 Items | 苹果渣添加水平 Apple pomace level | ||||
---|---|---|---|---|---|
0 | 9% | 18% | 27% | 36% | |
乳脂率Milk fat percentage | 3.99±0.35 | 3.95±0.23 | 3.86±0.54 | 3.78±0.62 | 3.75±0.33 |
乳蛋白率Milk protein percentage | 2.78±0.09 | 2.82±0.12 | 2.93±0.12 | 2.89±0.15 | 2.81±0.09 |
乳糖率Lactose percentage | 4.42±0.09 | 4.52±0.04 | 4.67±0.13 | 4.50±0.20 | 4.48±0.18 |
Table 3 Effects of different apple pomace levels on milk quality of Guanzhong dairy goats (%)
项目 Items | 苹果渣添加水平 Apple pomace level | ||||
---|---|---|---|---|---|
0 | 9% | 18% | 27% | 36% | |
乳脂率Milk fat percentage | 3.99±0.35 | 3.95±0.23 | 3.86±0.54 | 3.78±0.62 | 3.75±0.33 |
乳蛋白率Milk protein percentage | 2.78±0.09 | 2.82±0.12 | 2.93±0.12 | 2.89±0.15 | 2.81±0.09 |
乳糖率Lactose percentage | 4.42±0.09 | 4.52±0.04 | 4.67±0.13 | 4.50±0.20 | 4.48±0.18 |
项目 Items | 苹果渣添加水平 Apple pomace level | ||||
---|---|---|---|---|---|
0 | 9% | 18% | 27% | 36% | |
干物质Dry matter | 62.35±0.21 | 62.76±0.22 | 63.08±0.19 | 63.36±0.23 | 63.07±0.19 |
粗蛋白Crude protein | 54.41±0.42b | 56.26±0.54b | 59.66±0.56a | 59.45±0.43a | 58.31±0.39ab |
中性洗涤纤维Neutral detergent fiber | 54.09±4.55b | 57.53±2.12a | 57.66±2.10a | 54.87±3.16b | 53.98±4.26b |
酸性洗涤纤维Acid detergent fiber | 51.75±1.51 | 52.27±1.52 | 52.47±1.48 | 51.63±1.53 | 51.98±1.49 |
钙 Calcium | 53.65±1.71 | 53.75±1.36 | 55.78±1.23 | 55.37±1.24 | 54.16±1.35 |
磷 Phosphorus | 43.58±2.42 | 44.63±2.32 | 45.52±1.39 | 43.85±2.31 | 43.51±1.98 |
Table 4 Effects of different apple pomace levels on apparent digestibility of nutrients in Guanzhong dairy goats (%)
项目 Items | 苹果渣添加水平 Apple pomace level | ||||
---|---|---|---|---|---|
0 | 9% | 18% | 27% | 36% | |
干物质Dry matter | 62.35±0.21 | 62.76±0.22 | 63.08±0.19 | 63.36±0.23 | 63.07±0.19 |
粗蛋白Crude protein | 54.41±0.42b | 56.26±0.54b | 59.66±0.56a | 59.45±0.43a | 58.31±0.39ab |
中性洗涤纤维Neutral detergent fiber | 54.09±4.55b | 57.53±2.12a | 57.66±2.10a | 54.87±3.16b | 53.98±4.26b |
酸性洗涤纤维Acid detergent fiber | 51.75±1.51 | 52.27±1.52 | 52.47±1.48 | 51.63±1.53 | 51.98±1.49 |
钙 Calcium | 53.65±1.71 | 53.75±1.36 | 55.78±1.23 | 55.37±1.24 | 54.16±1.35 |
磷 Phosphorus | 43.58±2.42 | 44.63±2.32 | 45.52±1.39 | 43.85±2.31 | 43.51±1.98 |
项目 Items | 苹果渣添加水平 Apple pomace level | ||||
---|---|---|---|---|---|
0 | 9% | 18% | 27% | 36% | |
总蛋白Total protein (TP, g·L-1) | 62.41±5.50 | 63.43±6.11 | 65.21±5.25 | 64.21±4.35 | 63.19±5.14 |
葡萄糖Glucose (GLU, mmol·L-1) | 3.02±0.34 | 3.14±0.45 | 3.21±0.43 | 3.17±0.51 | 3.19±0.49 |
甘油三酯Triglyceride (TG, mmol·L-1) | 0.30±0.03 | 0.31±0.04 | 0.33±0.03 | 0.32±0.02 | 0.31±0.04 |
尿素氮Urea nitrogen (UN, mmol·L-1) | 4.66±0.64 | 4.74±0.53 | 4.84±0.03 | 4.75±0.34 | 4.70±0.49 |
Table 5 Effects of different apple pomace levels on serum biochemical indices of Guanzhong dairy goats
项目 Items | 苹果渣添加水平 Apple pomace level | ||||
---|---|---|---|---|---|
0 | 9% | 18% | 27% | 36% | |
总蛋白Total protein (TP, g·L-1) | 62.41±5.50 | 63.43±6.11 | 65.21±5.25 | 64.21±4.35 | 63.19±5.14 |
葡萄糖Glucose (GLU, mmol·L-1) | 3.02±0.34 | 3.14±0.45 | 3.21±0.43 | 3.17±0.51 | 3.19±0.49 |
甘油三酯Triglyceride (TG, mmol·L-1) | 0.30±0.03 | 0.31±0.04 | 0.33±0.03 | 0.32±0.02 | 0.31±0.04 |
尿素氮Urea nitrogen (UN, mmol·L-1) | 4.66±0.64 | 4.74±0.53 | 4.84±0.03 | 4.75±0.34 | 4.70±0.49 |
采样日期 Sampling date | 苹果渣添加水平 Apple pomace level | ||||
---|---|---|---|---|---|
0 | 9% | 18% | 27% | 36% | |
试验正试期第1天 Experiment lasted the 1st day | 6.69±0.02 | 6.70±0.01 | 6.68±0.02 | 6.71±0.03 | 6.72±0.02 |
试验正试期第60天Experiment lasted the 60th day | 6.71±0.02Aa | 6.60±0.01Bbc | 6.48±0.02Bbc | 6.35±0.03Bc | 6.25±0.02Bc |
Table 6 Effects of different apple pomace levels on the rumen pH of Guanzhong dairy goats
采样日期 Sampling date | 苹果渣添加水平 Apple pomace level | ||||
---|---|---|---|---|---|
0 | 9% | 18% | 27% | 36% | |
试验正试期第1天 Experiment lasted the 1st day | 6.69±0.02 | 6.70±0.01 | 6.68±0.02 | 6.71±0.03 | 6.72±0.02 |
试验正试期第60天Experiment lasted the 60th day | 6.71±0.02Aa | 6.60±0.01Bbc | 6.48±0.02Bbc | 6.35±0.03Bc | 6.25±0.02Bc |
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