Research Progress on Feather Growth Mechanism and Nutritional Control of Waterfowl
Feathers are the key economic traits of waterfowl,and also important physical characteristics.Feathers play an important role in flight,heat preservation,swimming,protection,temperature control and so on.The structure of feathers is complex,feather types and composition are also very different,and the development of feathers requires three generations of progressive growth before final growth.The growth and development of hair follicles also play an important role in the growth and development of feathers.From the structure and composition of hair follicles,the development process of hair follicles,the renewal of hair follicle growth,degeneration and quiescence,the classification of primary and secondary hair follicles all show that hair follicle development is the key to the growth and development of feathers.The growth and development of feathers is an extremely complex process,in addition to being affected by multiple factors(Wnt/β-catenin signaling pathway,fibroblast growth factor(FGF)family,SHH(sonic hedge)hog signaling pathway,Notch signaling,Hox gene,epidermal growth factor(EGF)and platelet-derived growth factor(PDGF)),are also regulated by various nutrients,such as proteins,amino acids,vitamins,and mineral elements.However,in recent years,with the intensive development of the poultry industry and the progress of the scale of dry farming,the problems of waterfowl feathers(such as slow growth,dull,abnormal shedding,etc.)have become increasingly prominent,seriously affecting the quality of their feathers and the appearance of slaughter,resulting in great economic losses.In this paper,the factors involved in feather growth and hair follicle development of waterfowl were reviewed from the perspective of feather growth,hair follicle structure and development,and the nutrients that have positive regulation on feather growth and development were summarized,hoping to provide theoretical basis for the advancement of waterfowl industry,especially the promotion of drought culture.
国家科技期刊平台
NSTL
万方数据
维普
