The total output value of mutton in Northwestern China has accounted for more than 60%of the total output value of animal husbandry over the years.It can be seen that the mutton industry in Northwest China not only pl...The total output value of mutton in Northwestern China has accounted for more than 60%of the total output value of animal husbandry over the years.It can be seen that the mutton industry in Northwest China not only plays a pivotal role in animal husbandry,but also plays an important role in Chinese agriculture.In this study,based on cost accounting theory,income-related theories and total factor productivity theory,using basic knowledge of statistics and economics,drawing on existing research results at home and abroad,and adopting a combination of qualitative analysis and quantitative analysis of SAS multiple stepwise regression,the changing trends of cost-benefit of mutton sheep breeding in Northwest agricultural and pastoral areas and influencing factors of production costs and production efficiency were investigated,aiming to provide reference for saving mutton sheep feeding material resources,reducing mutton sheep breeding costs,and improving mutton sheep breeding benefits.展开更多
Guizhou black goat is the second-largest breed of goat in Guizhou, an important part of ecosystem of karst region. Constructing cladogTam of black goat and Guizhou local goat with molecular biological technique, we fo...Guizhou black goat is the second-largest breed of goat in Guizhou, an important part of ecosystem of karst region. Constructing cladogTam of black goat and Guizhou local goat with molecular biological technique, we found some functional genes related to reproduction and growth of black goat, such as FSHR, LHβ, GDF9, MSTN, POU1F1, GFI1B, etc. In view of the genetic relations between Guizhou black goat and other local goats, we reviewed the research status and progress of gene polymorphism of FSHR, LHβ,GDF9, MSTN, POU1F1, GFI1B, and prospected the research field of molecular properties of the breed resource.展开更多
In this study, the genetic diversity of Guizhou black goat was analyzed by using eight microsatellite DNA markers, including MAF33, OarFCB48, OarF- CB3IM, BM1258, MAF70, OarFCB11, RM088 and AEIO1. According to the res...In this study, the genetic diversity of Guizhou black goat was analyzed by using eight microsatellite DNA markers, including MAF33, OarFCB48, OarF- CB3IM, BM1258, MAF70, OarFCB11, RM088 and AEIO1. According to the results, a total of 43 alleles were found at eight microsatellite loci in Guizhou black goat population. The average heterozygosity was 0. 679 2 in Guizhou black goat population. Microsatellite locus MAF70 had the highest hetemzygosity （0.780 7 ）, and locus AE101 exhibited the lowest heterozygosity （0.545 5 ）. The average polymorphism information content （PIC） was 0. 626 7 in Guizhou black goat popula- tion, which was higher than O. 5, indicating high levels of polymorphism.展开更多
基金Supported by Guizhou Agricultural Research Project(QKH[2019]2279)Construction of Guizhou Breeding Livestock and Poultry Genetic Resources Testing Platform(QKZYD[2018]4015)Scientific and Technological Innovation Talent Team of Major Livestock and Poultry Genome Big Data Analysis and Application Research in Guizhou Province(QKHPTRC[2019]5615)。
文摘The total output value of mutton in Northwestern China has accounted for more than 60%of the total output value of animal husbandry over the years.It can be seen that the mutton industry in Northwest China not only plays a pivotal role in animal husbandry,but also plays an important role in Chinese agriculture.In this study,based on cost accounting theory,income-related theories and total factor productivity theory,using basic knowledge of statistics and economics,drawing on existing research results at home and abroad,and adopting a combination of qualitative analysis and quantitative analysis of SAS multiple stepwise regression,the changing trends of cost-benefit of mutton sheep breeding in Northwest agricultural and pastoral areas and influencing factors of production costs and production efficiency were investigated,aiming to provide reference for saving mutton sheep feeding material resources,reducing mutton sheep breeding costs,and improving mutton sheep breeding benefits.
基金Supported by the National Transformation Fund for Agricultural Science and Technology Achievements(2012GB2F200408)Guizhou Agricultural Science and Technology Research(NY[2011]3064)+3 种基金Science and Technology Cooperation Program among Guizhou Science and Technology Agency,Bijie Government and Kunming Branch Chinese Academy of Sciences(2010-05)Guizhou High-level Personnel Research Conditions Special Assistant(TZJF-2010-034)Guizhou Agriculture Animal and Plant Breeding Special([2009]019)Guizhou Bijie Agricultural Science And Technology Research([2012]23)
文摘Guizhou black goat is the second-largest breed of goat in Guizhou, an important part of ecosystem of karst region. Constructing cladogTam of black goat and Guizhou local goat with molecular biological technique, we found some functional genes related to reproduction and growth of black goat, such as FSHR, LHβ, GDF9, MSTN, POU1F1, GFI1B, etc. In view of the genetic relations between Guizhou black goat and other local goats, we reviewed the research status and progress of gene polymorphism of FSHR, LHβ,GDF9, MSTN, POU1F1, GFI1B, and prospected the research field of molecular properties of the breed resource.
文摘In this study, the genetic diversity of Guizhou black goat was analyzed by using eight microsatellite DNA markers, including MAF33, OarFCB48, OarF- CB3IM, BM1258, MAF70, OarFCB11, RM088 and AEIO1. According to the results, a total of 43 alleles were found at eight microsatellite loci in Guizhou black goat population. The average heterozygosity was 0. 679 2 in Guizhou black goat population. Microsatellite locus MAF70 had the highest hetemzygosity （0.780 7 ）, and locus AE101 exhibited the lowest heterozygosity （0.545 5 ）. The average polymorphism information content （PIC） was 0. 626 7 in Guizhou black goat popula- tion, which was higher than O. 5, indicating high levels of polymorphism.
