里岔黑猪和巴里杂交猪母猪100kg体重日龄校正方法的比较

doi:10.3864/j.issn.0578-1752.2023.06.013

Abstract

Abstract:

【Objective】 The aims of this study were to compare the powers of three correction coefficients for days to 100 kg (D_100kg), so as to provide the reference for pig breeding farms to select the appropriate correction coefficient for D_100kg according to the data they have. 【Method】 A total of 1 344 pigs were used in this study, including Licha black pig, F₁ (BL₁) and F₂ (BL₂) from its intercross with Berkshire boars. Body weight and age in days for each pig were recorded everyday during its growth and fattening period. The data were qualified according to following criteria: the start body weight ≥25kg, the final body weight among 80 - 125 kg, the slope of the regression equation of body weight to age in days within±2 standard deviations of its average and so on. Three methods described as following were used to estimate the correction coefficient of the days to 100 kg (CF) into Licha Black pig, BL₁, BL₂ and their mixed population. First one was the regressive correction coefficient (CF_reg): b₁_i was the slope of the simple regression equation of body weight to age in days for the ith individual, and b₂_i was the slop of the straight line through the testing end point of the ith individual and the origin (age and weight were both 0), then the average of b₁_i/b₂_i in the population was CF_reg. Second one is the two-point correction coefficient (CF_2point): b₁_i was the slope of the straight line through the testing start and end points of the ith individual, and the methods to calculate b₂_i and CF_2point were as same as those of CF_reg. The last one was the single-point correction coefficient (CF_1point): b₁ was the slope of the simple regression equation of body weight to age in days at the testing end point for all pigs, and the methods to calculate b₂_i and CF_1point were as same as those of CF_reg. Put CF_reg, CF_2point and CF_1point into the correction equation, respectively, and got D_100kg._CF_.reg, D_100kg.2point and D_100kg.1point. The simple regression of age in days to body weight was used to calculate the regressive age in days to 100 kg (D_100kg.reg), and the correlation coefficients and deviations between D_100kg.reg and other D_100kg were calculated. The merits and demerits of the three methods were evaluated according to their correlation coefficients and deviations to D_100kg.reg. D_100kg of a population was estimated by using the correction coefficients from another population, and its correlation coefficient with D_100kg.reg of the population was calculated to evaluate whether the correction coefficient estimated from one population could be used in other populations. The relationship between body weight at the end of performance test (BW_end) and correction error was also investigated to explore whether BW_end had an effect on D_100kg. Taking consideration of the strong linear relationship between BW_end and the correction error of CF_1point, BW_end was used to correct D_100kg.1point to improve the correction accuracy of CF_1point. 【Result】 A total of 1 181 sows were used for following analyses after quality control. In the same population, the values of CF_reg and CF_2point were almost the same, and both of which were highly significantly greater than CF_1point. D_100kg._CF_.reg and D_100kg.2point of each pig were very close to its D_100kg.reg, and all of the correlation coefficients among D_100kg._CF_.reg, D_100kg.2point and D_100kg.reg were greater than 0.98, indicating that the correction powers of CF_reg and CF_2point were very good. The difference between D_100kg.1point and D_100kg.reg was large, and their correlation coefficient was 0.89, so the correction power was not very good. CF_reg and CF_2point had good population transplantations, and could be used to correct D_100kg of other populations, while CF_2point had poor population transplantations, and it was unsuitable to correct D_100kg of other populations. With the difference of BW_end to the target body weight increasing, the correction error of D_100kg._CF_.reg was also increasing in the three populations, and the correction error of D_100kg.2point was no significant changing. D_100kg.1point was significant negative correlation with BW_end, the correlation coefficients were -0.9812, -0.9627, -0.9786 and -0.9352 in the four populations, respectively. The correction power of CF_1point has been significantly improved after adjusting with BW_end, but CF_reg was still better than CF_1point, and it was preferred. 【Conclusion】 The correction powers and transplantations of correction coefficients CF_reg and CF_2point were very good, so CF_reg and CF_2point were suitable to be used to correct D_100kg in practice. The correction power of CF_1point was not very good, therefore, CF_1point was unsuitable to be used in practice. According to the datum amount of a pig, its D_100kg was estimated with the appropriate correction coefficient in order to improve the estimation accuracy and reduce the estimation error.

Key words: Licha Black pig, days to 100 kg, correction coefficient CF, regressive days to 100 kg

CUI DengShuai, XIONG SanYa, ZHENG Hao, LI LongYun, YU NaiBiao, HUANG ZhiYong, XIAO ShiJun, GUO YuanMei. Comparing Methods for Correcting Days to 100 kg of Sows in Licha Black Pig and Its Intercross with Berkshire[J].Scientia Agricultura Sinica, 2023, 56(6): 1177-1188.

0
/ / Recommend

Add to citation manager EndNote|Reference Manager|ProCite|BibTeX|RefWorks

URL: https://www.chinaagrisci.com/EN/10.3864/j.issn.0578-1752.2023.06.013

https://www.chinaagrisci.com/EN/Y2023/V56/I6/1177

Figures/Tables 7

Fig. 1

Table 1

Table 2

Fig. 2

Table 3

Table 4

Fig. 3

References 32

[1]	熊信威. 猪12号染色体上增加肌内脂肪含量的因果基因及其因果突变的鉴别与作用机理研究[D]. 南昌: 江西农业大学, 2017.
	XIONG X W. Identification of the causative gene and mutation for increasing IMF content at SSC12 and its mechanism study[D]. Nanchang: Jiangxi Agricultural University, 2017. (in Chinese)
[2]	张兰勇. 养猪业怎样提高经济效益. 国外畜牧学(猪与禽), 2009, 29(3): 93-94. doi:10.3969/j.issn.1001-0769.2009.03.040. doi: 10.3969/j.issn.1001-0769.2009.03.040
	ZHANG L Y. How to improve the economic efficiency of swine industry. Pigs and Poultry, 2009, 29(3): 93-94. doi:10.3969/j.issn.1001-0769.2009.03.040. (in Chinese) doi: 10.3969/j.issn.1001-0769.2009.03.040
[3]	博亚. 规模化养猪业发展探析. 农业技术与装备, 2011(19): 4-6.
	BO Y. Study on the development of swine industry in large-scale. Agricultural Technology & Equipment, 2011(19): 4-6. (in Chinese)
[4]	陈日. 2021. 生态猪养殖技术及发展趋势[J]. 农家致富顾问, (12): 208.
	CHEN R. The Technology of Raising Pigs Ecologically and Its Developing Trend. Consultant of Being Rich for Peasant Family, 2021 (12): 208. (in Chinese)
[5]	周道雷, 李保明, 施正香. 2003. 我国养猪产业生产现状及其发展方向. 农业工程学报, 19(z1): 101-105.
	ZHOU D L, LI B M, SHI Z X. Current Status and Development Strategy of Swine Industry in China. Transactions of the Chinese Society of Agricultural Engineering, 2003, 19(z1): 101-105. (in Chinese)
[6]	孙泉云, 卫金良, 曹建国. 中国土种黑猪的开发和利用现状. 上海畜牧兽医通讯, 2013(3): 45. doi:10.3969/j.issn.1000-7725.2013.03.026. doi: 10.3969/j.issn.1000-7725.2013.03.026
	SUN Q Y, WEI J L, CAO J G. Present Status of Exploitation and Utilization of Indigenous Black Pig Breeds in China. Shanghai Journal of Animal Husbandry and Veterinary Medicine, 2013(3): 45. doi:10.3969/j.issn.1000-7725.2013.03.026. (in Chinese) doi: 10.3969/j.issn.1000-7725.2013.03.026
[7]	陈鹏, 杨在宾, 张庆, 姜淑贞. 里岔黑猪与 “杜长大” 三元猪生长性能和免疫性能的对比研究. 猪业科学, 2017, 34(1): 131-133. doi:10.3969/j.issn.1673-5358.2017.01.051. doi: 10.3969/j.issn.1673-5358.2017.01.051
	CHEN P, YANG Z B, ZHANG Q, JIANG S Z. Comparative the growth and immunity performances of Licha black pig to Duroc× Landrace×Yorkshire pigs. Swine Industry Science, 2017, 34(1): 131-133. doi:10.3969/j.issn.1673-5358.2017.01.051. (in Chinese) doi: 10.3969/j.issn.1673-5358.2017.01.051
[8]	曾检华, 罗艳凤, 胡杰, 陈瑶生, 刘小红. 不同黑猪杂交组合生产性能研究与分析. 养猪, 2015(1): 61-64. doi:10.13257/j.cnki.21-1104/s.2015.01.024. doi: 10.13257/j.cnki.21-1104/s.2015.01.024
	ZENG J H, LUO Y F, HU J, CHEN Y S, LIU X H. The research and analysis of production performance in different hybrid black pigs. Swine Production, 2015(1): 61-64. doi:10.13257/j.cnki.21-1104/s.2015.01.024. (in Chinese) doi: 10.13257/j.cnki.21-1104/s.2015.01.024
[9]	李文通, 刘颖, 周荣, 沈自泉, 董胜华, 宋孝涛, 王月江, 唐辉. 江泉黑猪与杜长大三元杂交猪屠宰性能及肉质性状比较分析. 中国畜牧兽医, 2017, 44(7): 2057-2064. doi:10.16431/j.cnki.1671-7236.2017.07.022. doi: 10.16431/j.cnki.1671-7236.2017.07.022
	LI W T, LIU Y, ZHOU R, SHEN Z Q, DONG S H, SONG X T, WANG Y J, TANG H. A comparative study on the carcass and meat quality traits of Jiangquan black pig and DLY pig. China Animal Husbandry & Veterinary Medicine, 2017, 44(7): 2057-2064. doi:10.16431/j.cnki.1671-7236.2017.07.022. (in Chinese) doi: 10.16431/j.cnki.1671-7236.2017.07.022
[10]	郭源梅, 李龙云, 赖昭胜, 黄黎斌, 黄智勇, 涂金敏, 邱恒清, 黄路生, 肖石军. 中国地方猪种利用现状与展望. 江西农业大学学报, 2017, 39(3): 427-435. doi:10.13836/j.jjau.2017055. doi: 10.13836/j.jjau.2017055
	GUO Y M, LI L Y, LAI Z S, HUANG L B, HUANG Z Y, TU J M, QIU H Q, HUANG L S, XIAO S J. Present status and prospect of utilization of indigenous pig breeds in China. Acta Agriculturae Universitatis Jiangxiensis, 2017, 39(3): 427-435. doi:10.13836/j.jjau.2017055. (in Chinese) doi: 10.13836/j.jjau.2017055
[11]	刘国信. 加强地方猪种保护利用提高生猪产业竞争优势. 浙江畜牧兽医, 2021, 46(1): 14-15.
	LIU G X. Strengthening the protection and utilization of native pig breeds and improving the competitive advantage of pig industry. Zhejiang Journal Animal Science and Veterinary Medicine, 2021, 46(1): 14-15. (in Chinese)
[12]	于福清. 我国地方猪种资源最新状况与保护利用建议. 中国猪业, 2012, 7(3): 21-23. doi:10.16174/j.cnki.115435.2012.03.012. doi: 10.16174/j.cnki.115435.2012.03.012
	YU F Q. The latest situation of Chinese native pig breeds and suggestions on protection and utilization of them. China Swine Industry, 2012, 7(3): 21-23. doi:10.16174/j.cnki.115435.2012.03.012. (in Chinese) doi: 10.16174/j.cnki.115435.2012.03.012
[13]	刘艳花, 郭建华, 李书勋, 纪志和. 关于加快里岔黑猪新品种研究开发的思考. 山东畜牧兽医, 2017, 38(6): 20-21.
	LIU Y H, GUO J H, LI S X, JI Z H. Thoughts on accelerating the research and development of new breed using Licha black pig. Shandong Journal of Animal Science and Veterinary Medicine, 2017, 38(6): 20-21. (in Chinese)
[14]	彭潇, 尹立林, 梅全顺, 王海燕, 刘小磊, 朱猛进, 李新云, 付亮亮, 赵书红. 猪主要经济性状的基因组选择研究. 畜牧兽医学报, 2019, 50(2): 439-445. doi:10.11843/j.issn.0366-6964.2019.02.023. doi: 10.11843/j.issn.0366-6964.2019.02.023
	PENG X, YIN L L, MEI Q S, WANG H Y, LIU X L, ZHU M J, LI X Y, FU L L, ZHAO S H. A study of genome selection based on the porcine major economic traits. Acta Veterinaria et Zootechnica Sinica, 2019, 50(2): 439-445. doi:10.11843/j.issn.0366-6964.2019.02.023. (in Chinese) doi: 10.11843/j.issn.0366-6964.2019.02.023
[15]	WANG K J, LIU D W, HERNANDEZ-SANCHEZ J, CHEN J, LIU C K, WU Z F, FANG M Y, LI N. Genome wide association analysis reveals new production trait genes in a male duroc population. PLoS ONE, 2015, 10(9): e0139207. doi:10.1371/journal.pone.0139207. doi: 10.1371/journal.pone.0139207
[16]	郑浩, 涂金敏, 熊秀萍, 张则凯, 李龙云, 黄黎斌, 黄智勇, 肖石军, 郭源梅. 里岔黑猪和巴里杂交猪达100 kg体重日龄校正系数研究. 中国农业科学, 2020, 53(12): 2493-2501. doi:10.3864/j.issn.0578-1752.2020.12.015. doi: 10.3864/j.issn.0578-1752.2020.12.015
	ZHENG H, TU J M, XIONG X P, ZHANG Z K, LI L Y, HUANG L B, HUANG Z Y, XIAO S J, GUO Y M. Estimating the correction coefficient of days to 100 kg in Licha black pig and its intercross with Berkshire. Scientia Agricultura Sinica, 2020, 53(12): 2493-2501. doi:10.3864/j.issn.0578-1752.2020.12.015. (in Chinese) doi: 10.3864/j.issn.0578-1752.2020.12.015
[17]	全国畜牧兽医总站. 全国种猪遗传评估方案(试行) [Z]. 2000: 60.
	National Animal Husbandry & Veterinary Service. National Pig Genetic Evaluate Scheme (test). Beijing, 2000: 60. (in Chinese)
[18]	822-2004" N T. 中华人民共和国农业行业标准-种猪生产性能测定规程. 北京: 中华人民共和国农业部, 2004.
	NY/T 822-2004. People's Republic of China agricultural industry standards - Rules for performance testing of breeding pig, Beijing: Ministry of Agriculture of the People's Republic of China, 2004. (in Chinese)
[19]	全国生猪遗传改良计划工作小组领导办公室. 关于调整种猪达100Kg 体重日龄和达100Kg 体重活体背膘厚校正公式的通知. 2016: 1-2.
	LEADING GROUP OF WORK OFFICE OF CHINA SWINE GENETIC IMPROVEMENT PROGRAM. Notice on adjusting the calibration formula of days to 100 kg and backfat thickness at 100 kg in vivo for breeding pigs. 2016: 1-2. (in Chinese)
[20]	李加琪. 中国瘦肉型猪性能测定校正公式. 中国猪业科技大会暨中国畜牧兽医学会2015年学术年会论文集. 厦门. 2015: 5-5.
	LI J Q. Correction Formula for Production Performance Testing of Chinese Lean Pigs. Proceedings of China Pig Science and Technology Conference and 2015 Academic Annual Meeting of China Animal Husbandry and Veterinary Society, Xiamen. 2015: 5-5. (in Chinese)
[21]	刘望宏, 张勤, 胡军勇, 倪德斌, 熊远著. 瘦肉型种猪早期生长性状校正公式的制定及评估. 华中农业大学学报, 2010, 29(4): 469-474. doi:10.13300/j.cnki.hnlkxb.2010.04.024. doi: 10.13300/j.cnki.hnlkxb.2010.04.024
	LIU W H, ZHANG Q, HU J Y, NI D B, XIONG Y Z. Design and evaluation of adjusted equations for early growth performance of commercial breeding swines. Journal of Huazhong Agricultural University, 2010, 29(4): 469-474. doi:10.13300/j.cnki.hnlkxb.2010.04.024. (in Chinese) doi: 10.13300/j.cnki.hnlkxb.2010.04.024
[22]	陈斌. 瘦肉型猪的场内遗传评估及遗传分析研究[D]. 长沙: 湖南农业大学, 2005.
	CHEN B. Studies on the on-farm genetic evaluation and genetic analysis of lean type swine[D]. Changsha: Hunan Agricultural University, 2005. (in Chinese)
[23]	张哲, 张豪, 陈赞谋, 李加琪. 种猪育种性能测定校正公式研究. 中国畜牧杂志, 2015, 51(16): 49-54. doi:10.3969/j.issn.0258-7033.2015.16.011. doi: 10.3969/j.issn.0258-7033.2015.16.011
	ZHANG Z, ZHANG H, CHEN Z M, LI J Q. Development of correction formula for production traits in swine breeding. Chinese Journal of Animal Science, 2015, 51(16): 49-54. doi:10.3969/j.issn.0258-7033.2015.16.011. (in Chinese) doi: 10.3969/j.issn.0258-7033.2015.16.011
[24]	王林云. 猪育种工作中某些数据的校正方法. 畜牧与兽医, 2000, 32(1): 20-21. doi:10.3969/j.issn.0529-5130.2000.01.010. doi: 10.3969/j.issn.0529-5130.2000.01.010
	WANG L Y. Correction of some indexes in pig breeding. Animal Husbandry & Veterinary Medicine, 2000, 32(1): 20-21. doi:10.3969/j.issn.0529-5130.2000.01.010. (in Chinese) doi: 10.3969/j.issn.0529-5130.2000.01.010
[25]	吕凤林, 黎继华. 内江仔猪体重校正方法的研究. 四川畜牧兽医, 1993, 20(2): 1-3.
	LÜ F L, LI J H. A study of the method to adjust bodyweights of Neijiang pig. Sichuan Animal & Veterinary Sciences, 1993, 20(2): 1-3. (in Chinese)
[26]	杨岸奇, 吴买生, 向拥军, 陈斌, 李朝辉, 张善文, 刘伟, 吴攀峰. 沙子岭猪生长性状校正公式的制定. 猪业科学, 2015, 32(2): 132-134. doi:10.3969/j.issn.1673-5358.2015.02.048. doi: 10.3969/j.issn.1673-5358.2015.02.048
	YANG A Q, WU M S, XIANG Y J, CHEN B, LI Z H, ZHANG S W, LIU W, WU P F. Formulating the correction formula for growth traits of Shaziling pig. Swine Industry Science, 2015, 32(2): 132-134. doi:10.3969/j.issn.1673-5358.2015.02.048. (in Chinese) doi: 10.3969/j.issn.1673-5358.2015.02.048
[27]	胡闪耀, 陈欢, 闫德超, 张子君, 毛元良, 毛慧敏, 王利通, 王国水, 左波. 大白、长白达100 kg体重时体长校正公式的研究. 猪业科学, 2016, 33(1): 110-111. doi:10.3969/j.issn.1673-5358.2016.01.036. doi: 10.3969/j.issn.1673-5358.2016.01.036
	HU S Y, CHEN H, YAN D C, ZHANG Z J, MAO Y L, MAO H M, WANG L T, WANG G S, ZUO B. Study on the correction formula of body length for body weight at 100 kg in Large White and Landrace. Swine Industry Science, 2016, 33(1): 110-111. doi:10.3969/j.issn.1673-5358.2016.01.036. (in Chinese) doi: 10.3969/j.issn.1673-5358.2016.01.036
[28]	孙贤, 陈卫东, 梁凤莲, 左涛, 居瑞海, 魏传德. 丰海种猪生产性能测定与应用报告. 上海畜牧兽医通讯, 2010(3): 16-17. doi:10.3969/j.issn.1000-7725.2010.03.009. doi: 10.3969/j.issn.1000-7725.2010.03.009
	SUN X, CHEN W D, LIANG F L, ZUO T, JU R H, WEI C D. Reports on production performance testing and its application of fenghai breeding pig. Shanghai Journal of Animal Husbandry and Veterinary Medicine, 2010(3): 16-17. doi:10.3969/j.issn.1000-7725.2010.03.009. (in Chinese) doi: 10.3969/j.issn.1000-7725.2010.03.009
[29]	WU P X, WANG K, YANG Q, ZHOU J, CHEN D J, LIU Y H, MA J D, TANG Q Z, JIN L, XIAO W H, LOU P E, JIANG A N, JIANG Y Z, ZHU L, LI M Z, LI X W, TANG G Q. Whole-genome re-sequencing association study for direct genetic effects and social genetic effects of six growth traits in Large White pigs. Scientific Reports, 2019, 9: 9667. doi:10.1038/s41598-019-45919-0. doi: 10.1038/s41598-019-45919-0 pmid: 31273229
[30]	LI F G, LEI M G, ZHENG R, ZUO B, JIANG S W, DENG C Y, XIONG Y Z. The effects of estrogen receptor locus on reproductive tracts components and performance traits in large white × Meishan F₂ offspring. Asian-Australasian Journal of Animal Sciences, 2004, 17(9): 1223-1226. doi:10.5713/ajas.2004.1223. doi: 10.5713/ajas.2004.1223
[31]	李龙云, 肖石军, 黄黎斌, 黄智勇, 涂金敏, 熊秀萍, 郭源梅, 黄路生. 巴克夏和里岔黑猪不同杂交组合生产性能的比较研究. 畜牧兽医学报, 2018, 49(1): 26-35. doi:10.11843/j.issn.0366-6964.2018.01.004. doi: 10.11843/j.issn.0366-6964.2018.01.004
	LI L Y, XIAO S J, HUANG L B, HUANG Z Y, TU J M, XIONG X P, GUO Y M, HUANG L S. Comparative studies on productive performances among different cross combinations of Berkshire and Licha black pig. Acta Veterinaria et Zootechnica Sinica, 2018, 49(1): 26-35. doi:10.11843/j.issn.0366-6964.2018.01.004. (in Chinese) doi: 10.11843/j.issn.0366-6964.2018.01.004
[32]	贺婕妤, 王斌虎, 廖柱, 谢红涛, 易国强, 刘毓文, 敖红, 唐中林. 长白和大白猪主要生长性状的遗传参数估计. 畜牧兽医学报, 2021, 52(8): 2115-2123. doi:10.11843/j.issn.0366-6964.2021.08.005. doi: 10.11843/j.issn.0366-6964.2021.08.005
	HE J Y, WANG B H, LIAO Z, XIE H T, YI G Q, LIU Y W, AO H, TANG Z L. Estimation of genetic parameters of main growth traits in Landrace and large white pigs. Acta Veterinaria et Zootechnica Sinica, 2021, 52(8): 2115-2123. doi:10.11843/j.issn.0366-6964.2021.08.005. (in Chinese) doi: 10.11843/j.issn.0366-6964.2021.08.005

Metrics

Viewed

Full text

Abstract

Cited

Shared

Discussed

Comments

Recommended 0

No Suggested Reading articles found!

群体 Population	样本数 n	校正系数 CF	平均数 Mean	标准差 Std.	变异系数 CV (%)	最小值 Min.	最大值 Max.
里岔黑猪 Licha black pig (LC)	175	CF_reg	1.3533	0.1901	14.0474	0.8700	2.0823
		CF_2point	1.3538	0.1812	13.3833	0.8643	1.9703
		CF_1point	0.4963	0.0460	9.2743	0.3956	0.6166
巴里1代 F₁ of Berkshire × Licha black pig (BL1)	593	CF_reg	1.3876	0.1616	11.6464	0.9825	2.0241
		CF_2point	1.3918	0.1620	11.6381	0.9265	2.0839
		CF_1point	0.7265	0.0688	9.4729	0.5605	0.9741
巴里2代 F₂ of Berkshire × Licha black pig (BL2)	413	CF_reg	1.3968	0.1391	9.9553	0.9921	1.9326
		CF_2point	1.4026	0.1326	9.4570	0.9659	1.9422
		CF_1point	0.6784	0.0682	10.0492	0.5353	0.8868
混合群体 Mixed population (MIX)	1181	CF_reg	1.3858	0.1593	11.4973	0.8700	2.0823
		CF_2point	1.3899	0.1562	11.2378	0.8643	2.0839
		CF_1point	0.6756	0.1019	15.0808	0.3956	0.9741

群体 Population	样本数 n	达100kg日龄 D_100kg	平均数 Mean	标准差 Std.	变异系数 CV (%)	最小值 Min.	最大值 Max.
里岔黑猪 Licha black pig (LC)	175	D_100kg.reg	236.97	18.557	7.8309	192.90	285.89
		D_100kg._CF_.reg	236.45	18.247	7.7171	193.61	281.80
		D_100kg.2point	236.01	18.620	7.8898	190.88	280.52
		D_100kg.1point	256.60	38.848	15.1398	152.09	343.30
		D_{100kg.1point.cor}	235.50	17.807	7.5613	191.74	274.30
巴里1代 F₁ of Berkshire × Licha black pig (BL1)	593	D_100kg.reg	209.45	15.633	7.4641	171.11	268.98
		D_100kg._CF_.reg	209.55	15.221	7.2633	174.47	265.18
		D_100kg.2point	208.86	15.289	7.3199	172.38	267.26
		D_100kg.1point	204.27	26.955	13.1958	126.98	279.80
		D_{100kg.1point.cor}	207.70	15.339	7.3853	163.49	259.73
巴里2代 F₂ of Berkshire × Licha black pig (BL2)	413	D_100kg.reg	215.72	17.100	7.9269	171.84	274.46
		D_100kg._CF_.reg	215.69	16.847	7.8111	174.91	274.66
		D_100kg.2point	214.61	16.552	7.7125	174.29	270.97
		D_100kg.1point	207.91	31.558	15.1787	132.78	285.05
		D_{100kg.1point.cor}	213.30	16.761	7.8580	170.84	267.49
混合群体 Mixed population (MIX)	1181	D_100kg.reg	215.72	19.033	8.8230	171.10	285.90
		D_100kg._CF_.reg	215.68	18.635	8.6400	174.50	281.80
		D_100kg.2point	214.99	19.105	8.8865	171.40	286.70
		D_100kg.1point	213.30	35.552	16.6679	127.00	343.30
		D_{100kg.1point.cor}	215.68	20.567	9.5361	172.04	301.92

	D_100kg.reg	D_100kg._CF_.reg	D_100kg.2point	D_100kg.1point	D_{100kg.1point.cor}
D_100kg.reg	1181	0.9925	0.9847	0.8873	0.9349
D_100kg._CF_.reg	<2.2×10^-16	1181	0.9796	0.8886	0.9355
D_100kg.2point	<2.2×10^-16	<2.2×10^-16	1181	0.8995	0.9502
D_100kg.1point	<2.2×10^-16	<2.2×10^-16	<2.2×10^-16	1181	0.8991
D_{100kg.1point.cor}	<2.2×10^-16	<2.2×10^-16	<2.2×10^-16	<2.2×10^-16	1181

来源群体 Original population	校正系数 Correction coefficient	LC	BL₁	BL₂	MIX
里岔黑猪 Licha black pig (LC)	CF_reg	0.9803	0.9718	0.9793	0.9795
	CF_2point	0.9749	0.9718	0.9794	0.9795
	CF_1point	0.7924	0.8169	0.8195	0.8482
巴里1世代 F₁ of Berkshire × Licha black pig (BL₁)	CF_reg	0.9637	0.9911	0.9797	0.9795
	CF_2point	0.9636	0.9786	0.9797	0.9794
	CF_1point	0.9002	0.8800	0.8924	0.9124
巴里2世代 F₂ of Berkshire × Licha black pig (BL₂)	CF_reg	0.9634	0.9715	0.9940	0.9794
	CF_2point	0.9633	0.9714	0.9849	0.9794
	CF_1point	0.8869	0.8763	0.8768	0.9007
混合群体 Mixed population (MIX)	CF_reg	0.9637	0.9716	0.9797	0.9925
	CF_2point	0.9637	0.9716	0.9797	0.9847
	CF_1point	0.8861	0.8754	0.8780	0.8873

Comparing Methods for Correcting Days to 100 kg of Sows in Licha Black Pig and Its Intercross with Berkshire

RichHTML

PDF

Abstract

Cite this article

share this article

Figures/Tables 7

References 32

Related Articles 1

Metrics

Comments

Recommended 0