Abstract: A breeding method for improving reproductive performance of a chicken specialized dam line includes the steps of forming an F1 generation group, forming a breeding group, screening a breeding group, forming an F2 generation group, and continuously breeding to an Fn generation group. The method includes raising in small-scale groups and natural mating for systematic selection and breeding, which effectively reduces the generation interval and has the features of easy operation and fast genetic progress, not only ensuring animal welfare, but also effectively improving production performance.

Abstract: A breeding method for improving reproductive performance of a chicken specialized dam line includes the steps of forming an F1 generation group, forming a breeding group, screening a breeding group, forming an F2 generation group, and continuously breeding to an Fn generation group. The method includes raising in small-scale groups and natural mating for systematic selection and breeding, which effectively reduces the generation interval and has the features of easy operation and fast genetic progress, not only ensuring animal welfare, but also effectively improving production performance.

Abstract: The present invention provides a tray including a body. The body includes an outer edge surface, a center hole, a plurality of inner cutting grooves, and a plurality of outer cutting grooves. The center hole penetrates a center of the body to form an inner edge surface spaced apart from the outer edge surface. The inner cutting grooves are formed on the body and they extend from the inner edge surface to the outer edge surface, respectively. The outer cutting grooves are formed on the body and are respectively disposed between the inner cutting grooves, and the outer cutting grooves extend from the outer edge surface to the center hole, respectively. The body can be stretched along the inner cutting grooves and the outer cutting grooves to make a space formed by the center hole and the inner cutting grooves larger and to change an area of the body.

Abstract: The present invention provides methods for preventing or treating a fibrotic disease in a subject. In some embodiments, the fibrotic disease is fatty liver disease, non-alcoholic fatty liver disease, or non-alcoholic steatohepatitis. In particular aspects, the methods comprise administering an inhibitor of Shc gene expression to achieve genetic suppression of Shc activity in the subject. In other aspects, the methods comprise administering a peptide, peptoid, or peptide-peptoid hybrid inhibitor of Shc to achieve pharmacological suppression of Shc protein activity in the subject.

Abstract: The present invention provides methods for preventing or treating a fibrotic disease in a subject. In some embodiments, the fibrotic disease is fatty liver disease, non-alcoholic fatty liver disease, or non-alcoholic steatohepatitis. In particular aspects, the methods comprise administering a small molecule inhibitor of Shc to achieve pharmacological suppression of Shc protein activity in the subject.