Acta Prataculturae Sinica ›› 2023, Vol. 32 ›› Issue (2): 140-147.DOI: 10.11686/cyxb2022046
Chao PENG1(), Zi-jian LI1(), Hu-cheng WANG1(), Qiang FENG2, Yu-ying SHEN1
Received:
2022-01-24
Revised:
2022-03-03
Online:
2023-02-20
Published:
2022-12-01
Contact:
Hu-cheng WANG
Chao PENG, Zi-jian LI, Hu-cheng WANG, Qiang FENG, Yu-ying SHEN. A comparative study of slaughter and meat quality for sheep fed indoors or grazed with supplementary feed in the hill and gully region of the Loess Plateau[J]. Acta Prataculturae Sinica, 2023, 32(2): 140-147.
指标 Parameter | 放牧补饲组Grazing supplementary feeding group | 舍饲组 House feeding group | P值 P-value |
---|---|---|---|
宰前活重Body weight (kg) | 33.53±3.03 | 31.33±4.77 | 0.36 |
胴体重Carcass weight (kg) | 16.73±2.42 | 14.77±2.34 | 0.18 |
屠宰率Slaughter rate (%) | 49.76±3.64 | 47.09±0.67 | 0.11 |
滴水损失率Drip loss rate (%) | 4.42±2.34 | 4.50±2.56 | 0.96 |
熟肉率Cooking percentage (%) | 57.09±2.05 | 57.58±4.85 | 0.82 |
Table 1 Slaughter and meat quality performance of thin-tailed Han sheep under different management modes
指标 Parameter | 放牧补饲组Grazing supplementary feeding group | 舍饲组 House feeding group | P值 P-value |
---|---|---|---|
宰前活重Body weight (kg) | 33.53±3.03 | 31.33±4.77 | 0.36 |
胴体重Carcass weight (kg) | 16.73±2.42 | 14.77±2.34 | 0.18 |
屠宰率Slaughter rate (%) | 49.76±3.64 | 47.09±0.67 | 0.11 |
滴水损失率Drip loss rate (%) | 4.42±2.34 | 4.50±2.56 | 0.96 |
熟肉率Cooking percentage (%) | 57.09±2.05 | 57.58±4.85 | 0.82 |
指标 Parameter | 放牧补饲组Grazing supplementary feeding group | 舍饲组 House feeding group | P值 P-value |
---|---|---|---|
肌纤维直径Muscle fiber diameter (μm) | 37.06±0.36 | 33.90±0.32 | <0.01 |
肌纤维面积Muscle fiber area (μm2) | 1112.21±20.69 | 990.01±18.81 | <0.01 |
肌纤维密度Muscle fiber density (N·mm-2) | 593.80±26.97 | 600.13±35.36 | 0.89 |
结缔组织含量Connective tissue content (%) | 39.83±2.67 | 42.18±2.81 | 0.55 |
Table 2 Muscle fiber characteristics of thin-tailed Han sheep under different management modes
指标 Parameter | 放牧补饲组Grazing supplementary feeding group | 舍饲组 House feeding group | P值 P-value |
---|---|---|---|
肌纤维直径Muscle fiber diameter (μm) | 37.06±0.36 | 33.90±0.32 | <0.01 |
肌纤维面积Muscle fiber area (μm2) | 1112.21±20.69 | 990.01±18.81 | <0.01 |
肌纤维密度Muscle fiber density (N·mm-2) | 593.80±26.97 | 600.13±35.36 | 0.89 |
结缔组织含量Connective tissue content (%) | 39.83±2.67 | 42.18±2.81 | 0.55 |
指标 Parameter | 放牧补饲组Grazing supplementary feeding group | 舍饲组 House feeding group | P值 P-value |
---|---|---|---|
十五烷酸C15:0 | 1.62±0.36 | 1.76±0.24 | 0.75 |
十五碳烯酸C15:1 | 36.86±7.42 | 44.42±7.49 | 0.50 |
棕榈酸C16:0 | 2.73±0.48 | 2.13±0.24 | 0.27 |
十七碳酸C17:0 | 10.07±1.79 | 9.15±1.34 | 0.69 |
十七碳烯酸C17:1 | 1.09±0.91 | 0.97±0.28 | 0.71 |
硬脂酸C18:0 | 4.71±3.78 | 4.11±2.09 | 0.89 |
油酸C18:1n9c | 14.99±2.64 | 13.40±2.16 | 0.65 |
亚油酸C18:2n6t | 20.61±5.30 | 19.65±3.91 | 0.89 |
γ-亚麻酸C18:3n-6 | 3.25±0.65 | 1.82±0.18 | <0.05 |
二十二碳六烯酸C22:2n-6 | 4.04±0.71 | 2.61±0.54 | 0.14 |
总不饱和脂肪酸Total unsaturated fatty acids (TUFA) | 80.84±2.94 | 82.88±2.44 | 0.60 |
饱和脂肪酸Saturated fatty acids (SFA) | 19.13±2.94 | 17.13±2.39 | 0.61 |
单不饱和脂肪酸Monounsaturated fatty acids (MUFA) | 52.94±5.08 | 58.79±5.40 | 0.46 |
多不饱和脂肪酸Polyunsaturated acids fatty (PUFA) | 27.89±4.83 | 24.09±3.55 | 0.53 |
PUFA/TUFA (%) | 34.43±5.78 | 29.59±5.08 | 0.54 |
Table 3 Muscle fatty acid component of thin-tailed Han sheep under different management modes (%)
指标 Parameter | 放牧补饲组Grazing supplementary feeding group | 舍饲组 House feeding group | P值 P-value |
---|---|---|---|
十五烷酸C15:0 | 1.62±0.36 | 1.76±0.24 | 0.75 |
十五碳烯酸C15:1 | 36.86±7.42 | 44.42±7.49 | 0.50 |
棕榈酸C16:0 | 2.73±0.48 | 2.13±0.24 | 0.27 |
十七碳酸C17:0 | 10.07±1.79 | 9.15±1.34 | 0.69 |
十七碳烯酸C17:1 | 1.09±0.91 | 0.97±0.28 | 0.71 |
硬脂酸C18:0 | 4.71±3.78 | 4.11±2.09 | 0.89 |
油酸C18:1n9c | 14.99±2.64 | 13.40±2.16 | 0.65 |
亚油酸C18:2n6t | 20.61±5.30 | 19.65±3.91 | 0.89 |
γ-亚麻酸C18:3n-6 | 3.25±0.65 | 1.82±0.18 | <0.05 |
二十二碳六烯酸C22:2n-6 | 4.04±0.71 | 2.61±0.54 | 0.14 |
总不饱和脂肪酸Total unsaturated fatty acids (TUFA) | 80.84±2.94 | 82.88±2.44 | 0.60 |
饱和脂肪酸Saturated fatty acids (SFA) | 19.13±2.94 | 17.13±2.39 | 0.61 |
单不饱和脂肪酸Monounsaturated fatty acids (MUFA) | 52.94±5.08 | 58.79±5.40 | 0.46 |
多不饱和脂肪酸Polyunsaturated acids fatty (PUFA) | 27.89±4.83 | 24.09±3.55 | 0.53 |
PUFA/TUFA (%) | 34.43±5.78 | 29.59±5.08 | 0.54 |
指标 Parameter | 放牧补饲组 Grazing supplementary feeding group | 舍饲组 House feeding group | P值 P-value |
---|---|---|---|
必需氨基酸Essential amino acids (EAA) | |||
色氨酸Tryptophane (Trp) | 3.58±0.21 | 2.74±0.50 | 0.15 |
苏氨酸Threonine (Thr) | 4.85±0.02 | 4.88±0.03 | 0.50 |
缬氨酸Valine (Val) | 4.62±0.03 | 4.70±0.02 | <0.05 |
蛋氨酸Methionine (Met) | 2.93±0.02 | 2.92±0.02 | 0.77 |
异亮氨酸Isoleucine (Ile) | 4.46±0.01 | 4.50±0.02 | 0.13 |
亮氨酸Leucine (Leu) | 8.66±0.03 | 8.69±0.02 | 0.46 |
苯丙氨酸Phenylalanine (Phe) | 4.23±0.03 | 4.25±0.03 | 0.74 |
赖氨酸Lysine (Lys) | 9.26±0.02 | 9.30±0.03 | 0.34 |
非必需氨基酸Non-essential amino acids (NEAA) | |||
精氨酸Arginine (Arg) | 6.59±0.02 | 6.65±0.05 | 0.27 |
甘氨酸Glycine (Gly) | 4.29±0.07 | 4.60±0.17 | 0.11 |
丝氨酸Serine (Ser) | 4.06±0.02 | 4.09±0.05 | 0.59 |
谷氨酸Glutamic acid (Glu) | 15.56±0.10 | 15.60±0.15 | 0.81 |
丙氨酸Alanine (Ala) | 5.84±0.03 | 5.90±0.06 | 0.36 |
酪氨酸Tyrosine (Tyr) | 3.74±0.03 | 3.73±0.04 | 0.78 |
组氨酸Histidine (His) | 3.56±0.08 | 3.43±0.12 | 0.38 |
半胱氨酸Cysteine (Cys) | 0.81±0.05 | 0.89±0.07 | 0.36 |
脯氨酸Proline (Pro) | 3.60±0.03 | 3.74±0.13 | 0.30 |
天门冬氨酸Aspartic acid (Asp) | 9.38±0.06 | 9.41±0.04 | 0.71 |
必需氨基酸Essential amino acids (EAA) | 52.73±0.14 | 52.04±0.51 | 0.22 |
非必需氨基酸Non-essential amino acids (NEAA) | 47.27±0.14 | 47.96±0.51 | 0.22 |
功能性氨基酸Functional amino acid (FAA) | 30.81±0.12 | 30.93±0.19 | 0.58 |
呈味氨基酸Delicious amino acids (DAA) | 44.58±0.18 | 45.07±0.42 | 0.31 |
EAA/NEAA | 112.56±0.52 | 109.11±0.65 | 0.23 |
Table 4 Muscle amino acid content of thin-tailed Han sheep under different management conditions (%)
指标 Parameter | 放牧补饲组 Grazing supplementary feeding group | 舍饲组 House feeding group | P值 P-value |
---|---|---|---|
必需氨基酸Essential amino acids (EAA) | |||
色氨酸Tryptophane (Trp) | 3.58±0.21 | 2.74±0.50 | 0.15 |
苏氨酸Threonine (Thr) | 4.85±0.02 | 4.88±0.03 | 0.50 |
缬氨酸Valine (Val) | 4.62±0.03 | 4.70±0.02 | <0.05 |
蛋氨酸Methionine (Met) | 2.93±0.02 | 2.92±0.02 | 0.77 |
异亮氨酸Isoleucine (Ile) | 4.46±0.01 | 4.50±0.02 | 0.13 |
亮氨酸Leucine (Leu) | 8.66±0.03 | 8.69±0.02 | 0.46 |
苯丙氨酸Phenylalanine (Phe) | 4.23±0.03 | 4.25±0.03 | 0.74 |
赖氨酸Lysine (Lys) | 9.26±0.02 | 9.30±0.03 | 0.34 |
非必需氨基酸Non-essential amino acids (NEAA) | |||
精氨酸Arginine (Arg) | 6.59±0.02 | 6.65±0.05 | 0.27 |
甘氨酸Glycine (Gly) | 4.29±0.07 | 4.60±0.17 | 0.11 |
丝氨酸Serine (Ser) | 4.06±0.02 | 4.09±0.05 | 0.59 |
谷氨酸Glutamic acid (Glu) | 15.56±0.10 | 15.60±0.15 | 0.81 |
丙氨酸Alanine (Ala) | 5.84±0.03 | 5.90±0.06 | 0.36 |
酪氨酸Tyrosine (Tyr) | 3.74±0.03 | 3.73±0.04 | 0.78 |
组氨酸Histidine (His) | 3.56±0.08 | 3.43±0.12 | 0.38 |
半胱氨酸Cysteine (Cys) | 0.81±0.05 | 0.89±0.07 | 0.36 |
脯氨酸Proline (Pro) | 3.60±0.03 | 3.74±0.13 | 0.30 |
天门冬氨酸Aspartic acid (Asp) | 9.38±0.06 | 9.41±0.04 | 0.71 |
必需氨基酸Essential amino acids (EAA) | 52.73±0.14 | 52.04±0.51 | 0.22 |
非必需氨基酸Non-essential amino acids (NEAA) | 47.27±0.14 | 47.96±0.51 | 0.22 |
功能性氨基酸Functional amino acid (FAA) | 30.81±0.12 | 30.93±0.19 | 0.58 |
呈味氨基酸Delicious amino acids (DAA) | 44.58±0.18 | 45.07±0.42 | 0.31 |
EAA/NEAA | 112.56±0.52 | 109.11±0.65 | 0.23 |
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