The invention relates to a construction method and application of an ANGPTL3 overexpression laying hen
fatty liver hemorrhagic syndrome model, and the construction method comprises the following steps: (1) respectively integrating a
transposon element carrying a chicken ANGPTL3 coding
gene and a
transposase gene into an adenovirus vector, and obtaining a recombinant adenovirus by using a
virus packaging
system; (2)
punching the
chick embryos developed for 4 days (E4) by adopting an equatorial plane windowing method; (3) introducing the recombinant adenovirus into an E4 chick
embryo body in a
microinjection manner; and (4)
hatching to laying hens to prepare the laying hen
fatty liver hemorrhagic syndrome model. The
animal disease model is constructed on poultry through
protein overexpression for the first time, and the laying hen
fatty liver hemorrhagic syndrome model does not need to be fed with high-fat feed and has the advantages of being accurate in
animal model construction, remarkable in fatty liver characterization and high in efficiency. The method has a great application value in research on the fatty liver hemorrhagic syndrome of laying hens and
drug development and screening of poultry.