Guizhou Breeding Livestock and Poultry Germplasm Testing Center Guiyang 550018 China;
Guizhou Breeding Livestock and Poultry Germplasm Testing Center Guiyang 550018 China;
Guizhou Breeding Livestock and Poultry Germplasm Testing Center Guiyang 550018 China;
Guizhou Agricultural Products Quality and Safety Supervision Inspection and Testing Center Guiyang 550018 China;
Sinan Livestock Development Center Sinan 565100 China;
Guizhou Breeding Livestock and Poultry Germplasm Testing Center Guiyang 550018 China;
Guizhou Breeding Livestock and Poultry Germplasm Testing Center Guiyang 550018 China;
Lamb costs and benefits; Stepwise regression; Guizhou black goats; Selection and breeding thinking;