新疆农业科学 ›› 2023, Vol. 60 ›› Issue (5): 1281-1291.DOI: 10.6048/j.issn.1001-4330.2023.05.028
李家辉1(), 赵晓钰1, 李海英1(), 张俐华1, 张杰1, 魏彦1, 周军2, 赵全庄3, 李宗福3
收稿日期:
2022-09-19
出版日期:
2023-05-20
发布日期:
2023-05-22
通信作者:
李海英(1968-),女,山东莱阳人,教授,硕士生/博士生导师,研究方向为家禽种质资源利用与高效繁育,(E-mail)作者简介:
李家辉(1998-),男,新疆哈密人,硕士研究生,研究方向为家禽生产学,(E-mail)2387942693@qq.com
基金资助:
LI Jiahui1(), ZHAO Xiaoyu1, LI Haiying1(), ZHANG Lihua1, ZHANG Jie1, WEI Yan1, ZHOU jun2, ZHAO Quanzhuang3, LI Zongfu3
Received:
2022-09-19
Online:
2023-05-20
Published:
2023-05-22
Correspondence author:
LI Haiying (1968-), female, born in Laiyang, Shandong Province, professor, doctoral supervisor, research field: animal nutrition and feed science, (E-mail)Supported by:
摘要:
【目的】研究也迷离鸡的生长发育规律及体重、体尺指标间的相关性,为也迷离鸡的科学饲养管理提供理论依据。【方法】选取0日龄、同批次,且健康状况良好的也迷离鸡200只(公、母各半),测定并记录其0~20周龄的体重、体尺数据,通过Logistic、Gompertz和Von Bertalanffy模型对也迷离鸡公、母鸡的体重进行生长曲线拟合分析后,基于拐点周龄结果进行体重、体尺的相关性分析。【结果】2周龄以后公鸡体重极显著大于母鸡(P<0.01),公鸡和母鸡分别在8周龄和6周龄达到生长高峰期;Logistic、Gompertz和Von Bertalanffy生长模型均能很好的拟合也迷离鸡的生长曲线,拟合度均在0.995以上,其中Gompertz模型为也迷离鸡体重生长发育过程的最佳模型。在体尺指标方面,2~20周龄,公鸡的体斜长、龙骨长、胫围、胫长、胸深和背宽均极显著高于母鸡(P<0.01);4~6周龄公鸡的胸围显著高于母鸡(P<0.05),8~20周龄公鸡的胸围极显著高于母鸡(P<0.01);在6~20周龄公鸡的胸宽极显著高于母鸡(P<0.01)。8周龄公鸡的体重与体斜长、胸深、胸宽、背宽之间均呈极显著正相关(P<0.01),与龙骨长、胸围和胫长之间呈显著正相关(P<0.05);母鸡的体重与龙骨长、胸宽之间均呈极显著正相关(P<0.01),与体斜长、胸围、胫长、胸深和背宽之间具有显著正相关(P<0.05)。【结论】也迷离鸡的生长曲线呈近“S”型,体重生长规律的最佳拟合模型是Gompertz模型,体斜长、胸深、胸宽和背宽可作为公鸡早期体重选择指标,龙骨长和胸宽可作为母鸡早期体重选择指标。
中图分类号:
李家辉, 赵晓钰, 李海英, 张俐华, 张杰, 魏彦, 周军, 赵全庄, 李宗福. 也迷离鸡生长发育规律及体重体尺的相关性分析[J]. 新疆农业科学, 2023, 60(5): 1281-1291.
LI Jiahui, ZHAO Xiaoyu, LI Haiying, ZHANG Lihua, ZHANG Jie, WEI Yan, ZHOU jun, ZHAO Quanzhuang, LI Zongfu. Correlation analysis of growth and development rules and body weight and body size of Yemili chickens[J]. Xinjiang Agricultural Sciences, 2023, 60(5): 1281-1291.
项目 Items | 0~3周龄 0-3 Week | 3~7周龄 3-7 Week | 7~20周龄 7-20 Week |
---|---|---|---|
日粮组成 Diet composition | |||
玉米 Corn(%) | 58.35 | 58.15 | 58.40 |
小麦粉 Wheat flour(%) | 5.00 | 5.00 | 10.00 |
大豆粕 Soybean meal(%) | 8.50 | 5.00 | 0.00 |
棉籽粕 Cottonseed meal(%) | 10.20 | 9.60 | 8.90 |
辣椒粕 Pepper meal(%) | 0.00 | 3.00 | 3.00 |
玉米胚芽粕 Corn germ meal(%) | 8.00 | 8.00 | 8.00 |
玉米蛋白粉 Corn gluten meal(%) | 5.00 | 5.00 | 5.00 |
棉籽油 Cottonseed oil(%) | 0.50 | 2.00 | 2.60 |
细石粉 Fine stone powder(%) | 1.45 | 1.25 | 1.10 |
预混料1 Premix1(%) | 3.00 | 0.00 | 0.00 |
预混料2 Premix2(%) | 0.00 | 3.00 | 3.00 |
合计 Total | 100 | 100 | 100 |
营养水平 Nutritional level | |||
粗蛋白 CP(%) | 19.5 | 18.1 | 16.1 |
粗脂肪 EE(%) | 2.74 | 4.20 | 4.84 |
粗纤维 CF(%) | 3.04 | 3.01 | 3.04 |
钙 Ca(%) | 0.92 | 0.86 | 0.72 |
总磷 TP(%) | 0.60 | 0.57 | 0.52 |
有效磷 AP(%) | 0.35 | 0.34 | 0.31 |
代谢能 ME(MJ/kg) | 12.18 | 12.59 | 13.08 |
精氨酸 Arginine(%) | 1.28 | 1.16 | 1.01 |
异亮氨酸 Isoleucine(%) | 0.80 | 0.69 | 0.55 |
赖氨酸 Lysine(%) | 1.23 | 1.13 | 0.87 |
蛋氨酸 Methionine(%) | 0.53 | 0.51 | 0.40 |
蛋氨酸+胱氨酸 D-SAA(%) | 0.86 | 0.82 | 0.69 |
苏氨酸 Threonine(%) | 0.84 | 0.79 | 0.63 |
色氨酸 Tryptophan(%) | 0.21 | 0.19 | 0.14 |
缬氨酸 Valine(%) | 0.89 | 0.82 | 0.74 |
表1 日粮组成及营养水平
Tab.1 Diet composition and nutrient level
项目 Items | 0~3周龄 0-3 Week | 3~7周龄 3-7 Week | 7~20周龄 7-20 Week |
---|---|---|---|
日粮组成 Diet composition | |||
玉米 Corn(%) | 58.35 | 58.15 | 58.40 |
小麦粉 Wheat flour(%) | 5.00 | 5.00 | 10.00 |
大豆粕 Soybean meal(%) | 8.50 | 5.00 | 0.00 |
棉籽粕 Cottonseed meal(%) | 10.20 | 9.60 | 8.90 |
辣椒粕 Pepper meal(%) | 0.00 | 3.00 | 3.00 |
玉米胚芽粕 Corn germ meal(%) | 8.00 | 8.00 | 8.00 |
玉米蛋白粉 Corn gluten meal(%) | 5.00 | 5.00 | 5.00 |
棉籽油 Cottonseed oil(%) | 0.50 | 2.00 | 2.60 |
细石粉 Fine stone powder(%) | 1.45 | 1.25 | 1.10 |
预混料1 Premix1(%) | 3.00 | 0.00 | 0.00 |
预混料2 Premix2(%) | 0.00 | 3.00 | 3.00 |
合计 Total | 100 | 100 | 100 |
营养水平 Nutritional level | |||
粗蛋白 CP(%) | 19.5 | 18.1 | 16.1 |
粗脂肪 EE(%) | 2.74 | 4.20 | 4.84 |
粗纤维 CF(%) | 3.04 | 3.01 | 3.04 |
钙 Ca(%) | 0.92 | 0.86 | 0.72 |
总磷 TP(%) | 0.60 | 0.57 | 0.52 |
有效磷 AP(%) | 0.35 | 0.34 | 0.31 |
代谢能 ME(MJ/kg) | 12.18 | 12.59 | 13.08 |
精氨酸 Arginine(%) | 1.28 | 1.16 | 1.01 |
异亮氨酸 Isoleucine(%) | 0.80 | 0.69 | 0.55 |
赖氨酸 Lysine(%) | 1.23 | 1.13 | 0.87 |
蛋氨酸 Methionine(%) | 0.53 | 0.51 | 0.40 |
蛋氨酸+胱氨酸 D-SAA(%) | 0.86 | 0.82 | 0.69 |
苏氨酸 Threonine(%) | 0.84 | 0.79 | 0.63 |
色氨酸 Tryptophan(%) | 0.21 | 0.19 | 0.14 |
缬氨酸 Valine(%) | 0.89 | 0.82 | 0.74 |
模型 Model | 表达式 Expression | 拐点体重 Inflection point weight | 拐点周龄 Inflecting age |
---|---|---|---|
Logistic | Y=A/(1+Be-Kt) | A/2 | (InB)/K |
Gompertz | Y=Ae-Bexp(-Kt) | A/e | (InB)/K |
Von Bertalanffy | Y=A(1-Be-Kt)3 | 8A/27 | (In3B)/K |
表2 3种常见生长曲线模型
Tab.2 3 Common growth curve models
模型 Model | 表达式 Expression | 拐点体重 Inflection point weight | 拐点周龄 Inflecting age |
---|---|---|---|
Logistic | Y=A/(1+Be-Kt) | A/2 | (InB)/K |
Gompertz | Y=Ae-Bexp(-Kt) | A/e | (InB)/K |
Von Bertalanffy | Y=A(1-Be-Kt)3 | 8A/27 | (In3B)/K |
周龄 Week | 公鸡 Male chicken(g) | 母鸡 Female chicken(g) |
---|---|---|
0 | 32.22±2.85 | |
2 | 121.24±8.43A | 95.79±10.47B |
4 | 254.70±16.58A | 210.61±15.67B |
6 | 511.84±49.81A | 424.06±49.85B |
8 | 812.89±67.55A | 625.72±64.79B |
10 | 1 085.09±91.11A | 787.50±69.67B |
12 | 1 310.46±85.94A | 963.46±45.94B |
14 | 1 553.55±125.17A | 1 124.91±88.72B |
16 | 1 661.86±104.50A | 1 219.73±110.78B |
18 | 1 796.28±159.09A | 1 352.44±120.37B |
20 | 1 968.36±153.38A | 1 405.34±119.96B |
表3 不同周龄公、母鸡体重比较
Tab.3 Weight comparison of roosters and hens of different weeks
周龄 Week | 公鸡 Male chicken(g) | 母鸡 Female chicken(g) |
---|---|---|
0 | 32.22±2.85 | |
2 | 121.24±8.43A | 95.79±10.47B |
4 | 254.70±16.58A | 210.61±15.67B |
6 | 511.84±49.81A | 424.06±49.85B |
8 | 812.89±67.55A | 625.72±64.79B |
10 | 1 085.09±91.11A | 787.50±69.67B |
12 | 1 310.46±85.94A | 963.46±45.94B |
14 | 1 553.55±125.17A | 1 124.91±88.72B |
16 | 1 661.86±104.50A | 1 219.73±110.78B |
18 | 1 796.28±159.09A | 1 352.44±120.37B |
20 | 1 968.36±153.38A | 1 405.34±119.96B |
性别 Gender | 模型 Model | 参数估计值 Parameter estimates | 拟合度 Goodness of fit | 拐点周龄 Inflecting age/w | 拐点体重 Inflecting body weight(g) | ||
---|---|---|---|---|---|---|---|
A | K | B | |||||
公Male | Logistic | 1 949.780 | 0.314 | 19.662 | 0.995 | 9.480 | 974.890 |
Gompertz | 2 167.048 | 0.178 | 4.179 | 0.999 | 8.034 | 797.212 | |
Von Bertalanffy | 2 345.558 | 0.133 | 0.865 | 0.999 | 7.170 | 694.980 | |
母Female | Logistic | 1 430.861 | 0.300 | 16.495 | 0.995 | 9.344 | 715.431 |
Gompertz | 1 586.980 | 0.172 | 3.827 | 0.999 | 7.803 | 583.817 | |
Von Bertalanffy | 1 717.118 | 0.128 | 0.811 | 0.999 | 6.946 | 508.776 |
表4 也迷离鸡体重生长曲线模型参数估计
Tab.4 Model parameter estimation of Yemili chicken body weight growth curve
性别 Gender | 模型 Model | 参数估计值 Parameter estimates | 拟合度 Goodness of fit | 拐点周龄 Inflecting age/w | 拐点体重 Inflecting body weight(g) | ||
---|---|---|---|---|---|---|---|
A | K | B | |||||
公Male | Logistic | 1 949.780 | 0.314 | 19.662 | 0.995 | 9.480 | 974.890 |
Gompertz | 2 167.048 | 0.178 | 4.179 | 0.999 | 8.034 | 797.212 | |
Von Bertalanffy | 2 345.558 | 0.133 | 0.865 | 0.999 | 7.170 | 694.980 | |
母Female | Logistic | 1 430.861 | 0.300 | 16.495 | 0.995 | 9.344 | 715.431 |
Gompertz | 1 586.980 | 0.172 | 3.827 | 0.999 | 7.803 | 583.817 | |
Von Bertalanffy | 1 717.118 | 0.128 | 0.811 | 0.999 | 6.946 | 508.776 |
性别 Gender | 模型 Model | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
公 Male | 实测值 | 32.22 | 121.24 | 254.70 | 511.84 | 812.89 | 1 085.09 | 1 310.46 | 1 553.55 | 1 661.86 | 1 796.28 | 1 968.36 |
Logistic | 94.55 | 169.97 | 295.95 | 489.63 | 752.39 | 1 054.34 | 1 341.68 | 1 570.03 | 1 726.88 | 1 824.13 | 1 880.65 | |
Gompertz | 33.19 | 116.03 | 278.84 | 515.34 | 792.37 | 1 071.04 | 1 322.75 | 1 533.54 | 1 700.89 | 1 828.87 | 1 924.22 | |
Von Bertalanffy | 5.77 | 89.80 | 279.13 | 533.85 | 809.76 | 1 075.97 | 1 315.45 | 1 521.32 | 1 692.89 | 1 832.78 | 1 945.07 | |
母 Female | 实测值 | 32.22 | 95.79 | 210.61 | 424.06 | 625.72 | 787.50 | 963.46 | 1 124.91 | 1 219.73 | 1 352.44 | 1 405.34 |
Logistic | 81.79 | 142.34 | 239.75 | 383.96 | 573.17 | 785.65 | 986.32 | 1 147.12 | 1 259.84 | 1 331.65 | 1 374.66 | |
Gompertz | 34.56 | 105.27 | 231.88 | 405.88 | 603.62 | 799.75 | 976.30 | 1 124.59 | 1 243.18 | 1 334.74 | 1 403.71 | |
Von Bertalanffy | 11.59 | 88.52 | 233.14 | 416.70 | 611.27 | 797.78 | 965.73 | 1 110.83 | 1 232.63 | 1 332.81 | 1 413.98 |
表5 也迷离鸡体重实测值与3种曲线拟合估计值比较
Tab.5 The measured of Yemili chicken body weight was compared with the three curve-fitting estimates
性别 Gender | 模型 Model | 0 | 2 | 4 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
---|---|---|---|---|---|---|---|---|---|---|---|---|
公 Male | 实测值 | 32.22 | 121.24 | 254.70 | 511.84 | 812.89 | 1 085.09 | 1 310.46 | 1 553.55 | 1 661.86 | 1 796.28 | 1 968.36 |
Logistic | 94.55 | 169.97 | 295.95 | 489.63 | 752.39 | 1 054.34 | 1 341.68 | 1 570.03 | 1 726.88 | 1 824.13 | 1 880.65 | |
Gompertz | 33.19 | 116.03 | 278.84 | 515.34 | 792.37 | 1 071.04 | 1 322.75 | 1 533.54 | 1 700.89 | 1 828.87 | 1 924.22 | |
Von Bertalanffy | 5.77 | 89.80 | 279.13 | 533.85 | 809.76 | 1 075.97 | 1 315.45 | 1 521.32 | 1 692.89 | 1 832.78 | 1 945.07 | |
母 Female | 实测值 | 32.22 | 95.79 | 210.61 | 424.06 | 625.72 | 787.50 | 963.46 | 1 124.91 | 1 219.73 | 1 352.44 | 1 405.34 |
Logistic | 81.79 | 142.34 | 239.75 | 383.96 | 573.17 | 785.65 | 986.32 | 1 147.12 | 1 259.84 | 1 331.65 | 1 374.66 | |
Gompertz | 34.56 | 105.27 | 231.88 | 405.88 | 603.62 | 799.75 | 976.30 | 1 124.59 | 1 243.18 | 1 334.74 | 1 403.71 | |
Von Bertalanffy | 11.59 | 88.52 | 233.14 | 416.70 | 611.27 | 797.78 | 965.73 | 1 110.83 | 1 232.63 | 1 332.81 | 1 413.98 |
周龄 Week | 性别 Gender | 体重 Weight (kg) | 体斜长 Body oblique (cm) | 龙骨长 Keel length (cm) | 胸围 Chest circumfere- nce(cm) | 胫围 Keel length (cm) | 胫长 Shin length (cm) | 胸深 Chest depth (cm) | 胸宽 Shin length (cm) | 背宽 Back width (cm) |
---|---|---|---|---|---|---|---|---|---|---|
2 | 公 | 121.24±8.43A | 8.52±0.27A | 3.89±0.31 | 10.30±0.60 | 2.01±0.11A | 3.98±0.21A | 4.78±0.19A | 3.30±0.21 | 3.44±0.17A |
母 | 95.79±10.47B | 8.21±0.39B | 3.74±0.25 | 9.96±0.61 | 1.90±0.10B | 3.79±0.22B | 4.49±0.22B | 3.12±0.22 | 3.23±0.16B | |
4 | 公 | 254.70±16.58A | 10.84±0.81A | 5.53±0.40A | 14.35±1.12a | 3.04±0.17A | 5.84±0.41A | 5.64±0.47A | 3.86±0.37 | 3.64±0.31A |
母 | 210.61±15.67B | 9.62±0.89B | 5.08±0.40B | 13.44±1.01b | 2.81±0.15B | 5.42±0.46A | 4.98±0.80B | 3.69±0.31 | 3.38±0.24B | |
6 | 公 | 511.84±49.81A | 13.16±0.45A | 7.23±0.43A | 18.55±0.98a | 3.42±0.14A | 7.10±0.48A | 7.41±0.45A | 4.67±0.27A | 5.56±0.32A |
母 | 424.06±49.85B | 11.78±0.37B | 6.15±0.37B | 17.99±0.63b | 3.17±0.13B | 6.63±0.39B | 6.83±0.49B | 4.35±0.24B | 5.02±0.22B | |
8 | 公 | 812.89±67.55A | 16.34±0.92A | 8.41±0.43A | 22.69±1.09A | 3.73±0.14A | 8.69±0.35A | 8.97±0.52A | 6.08±0.33A | 6.77±0.35A |
母 | 625.72±64.79B | 14.71±0.82B | 7.63±0.25B | 19.78±0.90B | 3.48±0.28B | 7.77±0.50B | 7.08±0.36B | 5.37±0.33B | 5.94±0.44B | |
10 | 公 | 1085.09±91.11A | 16.80±0.90A | 9.22±0.46A | 25.96±1.84A | 3.98±0.20A | 9.69±0.35A | 9.84±0.37A | 6.81±0.47A | 7.23±0.42A |
母 | 787.50±69.67B | 15.76±1.14B | 8.52±0.54B | 24.05±0.89B | 3.50±0.12B | 8.61±0.32B | 9.02±0.44B | 5.91±0.35B | 6.15±0.51B | |
12 | 公 | 1310.46±85.94A | 20.06±1.03A | 11.86±1.47A | 27.28±1.96A | 3.89±0.16A | 10.53±0.42A | 10.01±0.78A | 7.15±0.57A | 7.46±0.50A |
母 | 963.46±45.94B | 18.58±0.47B | 10.40±1.00B | 24.99±1.26B | 3.46±0.17B | 9.11±0.37B | 9.42±0.44B | 6.45±0.47B | 6.41±0.48B | |
14 | 公 | 1553.55±125.17A | 22.21±0.78A | 12.66±0.97A | 29.35±1.32A | 4.18±0.15A | 10.88±0.53A | 11.32±0.34A | 7.54±0.27A | 7.67±0.50A |
母 | 1124.91±88.72B | 19.86±0.85B | 11.24±1.23B | 26.65±2.83B | 3.74±0.28B | 9.37±0.57B | 9.97±0.48B | 6.66±0.24B | 6.64±0.23B | |
16 | 公 | 1661.86±104.50A | 23.02±0.99A | 12.82±0.94A | 29.51±1.05A | 4.35±0.25A | 10.97±0.66A | 11.32±0.42A | 7.75±0.54A | 8.06±0.46A |
母 | 1219.73±110.78B | 20.41±0.53B | 11.89±0.95B | 26.99±1.19B | 3.77±0.27B | 9.43±0.51B | 9.98±0.30B | 6.68±0.20B | 6.92±0.64B | |
18 | 公 | 1796.28±159.09A | 24.63±1.14A | 12.87±0.54A | 31.34±1.46A | 4.50±0.19A | 11.69±0.68A | 12.44±0.84A | 8.55±0.68A | 9.13±0.64A |
母 | 1352.44±120.37B | 21.11±1.40B | 11.98±1.01B | 28.62±1.12B | 3.83±0.19B | 9.58±0.47B | 10.11±0.29B | 7.24±0.30B | 7.14±0.43B | |
20 | 公 | 1968.36±153.38A | 24.74±1.14A | 12.91±0.83A | 31.59±1.51A | 4.69±0.17A | 11.71±0.61A | 12.45±0.80A | 8.56±0.80A | 9.14±0.42A |
母 | 1405.34±119.96B | 21.19±1.14B | 12.00±1.10B | 28.60±0.81B | 3.86±0.21B | 9.66±0.49B | 10.28±0.31B | 7.25±0.45B | 7.72±0.33B |
表6 公、母鸡各周龄体尺指标比较
Tab.6 Comparison of body size indicators of roosters and hens at different ages
周龄 Week | 性别 Gender | 体重 Weight (kg) | 体斜长 Body oblique (cm) | 龙骨长 Keel length (cm) | 胸围 Chest circumfere- nce(cm) | 胫围 Keel length (cm) | 胫长 Shin length (cm) | 胸深 Chest depth (cm) | 胸宽 Shin length (cm) | 背宽 Back width (cm) |
---|---|---|---|---|---|---|---|---|---|---|
2 | 公 | 121.24±8.43A | 8.52±0.27A | 3.89±0.31 | 10.30±0.60 | 2.01±0.11A | 3.98±0.21A | 4.78±0.19A | 3.30±0.21 | 3.44±0.17A |
母 | 95.79±10.47B | 8.21±0.39B | 3.74±0.25 | 9.96±0.61 | 1.90±0.10B | 3.79±0.22B | 4.49±0.22B | 3.12±0.22 | 3.23±0.16B | |
4 | 公 | 254.70±16.58A | 10.84±0.81A | 5.53±0.40A | 14.35±1.12a | 3.04±0.17A | 5.84±0.41A | 5.64±0.47A | 3.86±0.37 | 3.64±0.31A |
母 | 210.61±15.67B | 9.62±0.89B | 5.08±0.40B | 13.44±1.01b | 2.81±0.15B | 5.42±0.46A | 4.98±0.80B | 3.69±0.31 | 3.38±0.24B | |
6 | 公 | 511.84±49.81A | 13.16±0.45A | 7.23±0.43A | 18.55±0.98a | 3.42±0.14A | 7.10±0.48A | 7.41±0.45A | 4.67±0.27A | 5.56±0.32A |
母 | 424.06±49.85B | 11.78±0.37B | 6.15±0.37B | 17.99±0.63b | 3.17±0.13B | 6.63±0.39B | 6.83±0.49B | 4.35±0.24B | 5.02±0.22B | |
8 | 公 | 812.89±67.55A | 16.34±0.92A | 8.41±0.43A | 22.69±1.09A | 3.73±0.14A | 8.69±0.35A | 8.97±0.52A | 6.08±0.33A | 6.77±0.35A |
母 | 625.72±64.79B | 14.71±0.82B | 7.63±0.25B | 19.78±0.90B | 3.48±0.28B | 7.77±0.50B | 7.08±0.36B | 5.37±0.33B | 5.94±0.44B | |
10 | 公 | 1085.09±91.11A | 16.80±0.90A | 9.22±0.46A | 25.96±1.84A | 3.98±0.20A | 9.69±0.35A | 9.84±0.37A | 6.81±0.47A | 7.23±0.42A |
母 | 787.50±69.67B | 15.76±1.14B | 8.52±0.54B | 24.05±0.89B | 3.50±0.12B | 8.61±0.32B | 9.02±0.44B | 5.91±0.35B | 6.15±0.51B | |
12 | 公 | 1310.46±85.94A | 20.06±1.03A | 11.86±1.47A | 27.28±1.96A | 3.89±0.16A | 10.53±0.42A | 10.01±0.78A | 7.15±0.57A | 7.46±0.50A |
母 | 963.46±45.94B | 18.58±0.47B | 10.40±1.00B | 24.99±1.26B | 3.46±0.17B | 9.11±0.37B | 9.42±0.44B | 6.45±0.47B | 6.41±0.48B | |
14 | 公 | 1553.55±125.17A | 22.21±0.78A | 12.66±0.97A | 29.35±1.32A | 4.18±0.15A | 10.88±0.53A | 11.32±0.34A | 7.54±0.27A | 7.67±0.50A |
母 | 1124.91±88.72B | 19.86±0.85B | 11.24±1.23B | 26.65±2.83B | 3.74±0.28B | 9.37±0.57B | 9.97±0.48B | 6.66±0.24B | 6.64±0.23B | |
16 | 公 | 1661.86±104.50A | 23.02±0.99A | 12.82±0.94A | 29.51±1.05A | 4.35±0.25A | 10.97±0.66A | 11.32±0.42A | 7.75±0.54A | 8.06±0.46A |
母 | 1219.73±110.78B | 20.41±0.53B | 11.89±0.95B | 26.99±1.19B | 3.77±0.27B | 9.43±0.51B | 9.98±0.30B | 6.68±0.20B | 6.92±0.64B | |
18 | 公 | 1796.28±159.09A | 24.63±1.14A | 12.87±0.54A | 31.34±1.46A | 4.50±0.19A | 11.69±0.68A | 12.44±0.84A | 8.55±0.68A | 9.13±0.64A |
母 | 1352.44±120.37B | 21.11±1.40B | 11.98±1.01B | 28.62±1.12B | 3.83±0.19B | 9.58±0.47B | 10.11±0.29B | 7.24±0.30B | 7.14±0.43B | |
20 | 公 | 1968.36±153.38A | 24.74±1.14A | 12.91±0.83A | 31.59±1.51A | 4.69±0.17A | 11.71±0.61A | 12.45±0.80A | 8.56±0.80A | 9.14±0.42A |
母 | 1405.34±119.96B | 21.19±1.14B | 12.00±1.10B | 28.60±0.81B | 3.86±0.21B | 9.66±0.49B | 10.28±0.31B | 7.25±0.45B | 7.72±0.33B |
项目 Items | 体重 Weight | 体斜长 Body oblique | 龙骨长 Keel length | 胸围 Chest circumfer- ence | 胫围 Keel length | 胫长 Shin length | 胸深 Chest depth | 胸宽 Shin length | 背宽 Back width |
---|---|---|---|---|---|---|---|---|---|
体重Weight | 1 | 0.99 | 0.974* | 0.988* | 0.895 | 0.984* | 0.99 | 0.99 | 0.99 |
体斜长 Body oblique | 1 | 0.987* | 0.99 | 0.935 | 0.99 | 0.99 | 0.99 | 0.971* | |
龙骨长 Keel length | 1 | 0.99 | 0.967* | 0.99 | 0.984* | 0.959* | 0.951* | ||
胸围 Chest circumfer- ence | 1 | 0.954* | 0.99 | 0.99 | 0.978* | 0.965* | |||
胫围Keel length | 1 | 0.960* | 0.910 | 0.880 | 0.843 | ||||
胫长Shin length | 1 | 0.988* | 0.976* | 0.957* | |||||
胸深Chest depth | 1 | 0.989* | 0.99 | ||||||
胸宽Shin length | 1 | 0.982* | |||||||
背宽Back width | 1 |
表7 8周龄公鸡体重、体尺相关性
Tab.7 Correlation analysis of body weight and body size of 8-week-old roosters
项目 Items | 体重 Weight | 体斜长 Body oblique | 龙骨长 Keel length | 胸围 Chest circumfer- ence | 胫围 Keel length | 胫长 Shin length | 胸深 Chest depth | 胸宽 Shin length | 背宽 Back width |
---|---|---|---|---|---|---|---|---|---|
体重Weight | 1 | 0.99 | 0.974* | 0.988* | 0.895 | 0.984* | 0.99 | 0.99 | 0.99 |
体斜长 Body oblique | 1 | 0.987* | 0.99 | 0.935 | 0.99 | 0.99 | 0.99 | 0.971* | |
龙骨长 Keel length | 1 | 0.99 | 0.967* | 0.99 | 0.984* | 0.959* | 0.951* | ||
胸围 Chest circumfer- ence | 1 | 0.954* | 0.99 | 0.99 | 0.978* | 0.965* | |||
胫围Keel length | 1 | 0.960* | 0.910 | 0.880 | 0.843 | ||||
胫长Shin length | 1 | 0.988* | 0.976* | 0.957* | |||||
胸深Chest depth | 1 | 0.989* | 0.99 | ||||||
胸宽Shin length | 1 | 0.982* | |||||||
背宽Back width | 1 |
项目 Items | 体重 Weight | 体斜长 Body oblique | 龙骨长 Keel length | 胸围 Chest circumfer- ence | 胫围 Keel length | 胫长 Shin length | 胸深 Chest depth | 胸宽 Shin length | 背宽 Back width |
---|---|---|---|---|---|---|---|---|---|
体重 Weight | 1 | 0.978* | 0.99 | 0.975* | 0.870 | 0.978* | 0.966* | 0.99 | 0.978* |
体斜长 Body oblique | 1 | 0.99 | 0.954* | 0.923 | 0.983* | 0.902 | 0.989* | 0.912 | |
龙骨长 Keel length | 1 | 0.977* | 0.925 | 0.99 | 0.939 | 0.99 | 0.943 | ||
胸围 Chest circumfer- ence | 1 | 0.927 | 0.99 | 0.978* | 0.956* | 0.960* | |||
胫围Keel length | 1 | 0.953* | 0.828 | 0.870 | 0.791 | ||||
胫长Shin length | 1 | 0.946 | 0.973* | 0.935 | |||||
胸深Chest depth | 1 | 0.934 | 0.99 | ||||||
胸宽Shin length | 1 | 0.954* | |||||||
背宽Back width | 1 |
表8 8周龄母鸡体重、体尺相关性
Tab.8 Correlation analysis of body weight and body size of 8-week-old hens
项目 Items | 体重 Weight | 体斜长 Body oblique | 龙骨长 Keel length | 胸围 Chest circumfer- ence | 胫围 Keel length | 胫长 Shin length | 胸深 Chest depth | 胸宽 Shin length | 背宽 Back width |
---|---|---|---|---|---|---|---|---|---|
体重 Weight | 1 | 0.978* | 0.99 | 0.975* | 0.870 | 0.978* | 0.966* | 0.99 | 0.978* |
体斜长 Body oblique | 1 | 0.99 | 0.954* | 0.923 | 0.983* | 0.902 | 0.989* | 0.912 | |
龙骨长 Keel length | 1 | 0.977* | 0.925 | 0.99 | 0.939 | 0.99 | 0.943 | ||
胸围 Chest circumfer- ence | 1 | 0.927 | 0.99 | 0.978* | 0.956* | 0.960* | |||
胫围Keel length | 1 | 0.953* | 0.828 | 0.870 | 0.791 | ||||
胫长Shin length | 1 | 0.946 | 0.973* | 0.935 | |||||
胸深Chest depth | 1 | 0.934 | 0.99 | ||||||
胸宽Shin length | 1 | 0.954* | |||||||
背宽Back width | 1 |
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