Effects of age on differential resistance to duck hepatitis A virus genotype 3 in Pekin ducks by 16 S and transcriptomics.

Duck hepatitis A virus genotype 3 (DHAV-3) is the major cause of viral hepatitis in ducks in Asia. Previous studies have shown that ducklings younger than 21 days are more susceptible to DHAV-3. To elucidate the mechanism by which age affects the differential susceptibility of Pekin ducks to DHAV-3, intestinal ( = 520), liver ( = 40) and blood ( = 260) samples were collected from control and DHAV-3-infected ducks at 7, 10, 14, and 21 days of age.

Comparative transcriptome reveals the effect of IFITM1 on differential resistance to duck hepatitis A virus genotype 3 in Pekin ducks.

Background: Duck viral hepatitis (DVH) has a significant economic impact on duck industry, and duck hepatitis A virus genotype 3 (DHAV-3) is the most prevalent pathogen of DVH in Asian duck industry. The detailed study connecting differentially expressed genes (DEGs) and the differential resistance to DHAV-3 have not been accurately described, although a large numbers of DEGs have been identified by transcriptomic studies.

Results: Here, a resistant Pekin duck line (Z8R) and a susceptible Pekin duck line (Z8S) as models, high mortality and dramatically increased aspartate aminotransferase (AST), alanine aminotransferase (ALT) and the expression of immune-related genes of Z8S group were shown to be noticeable signs of cases caused by DHAV-3 infection.

Two variants of AUTS2 gene are associated with high lean meat percentage in Pekin ducks.

Duck meat is starting to receive more attention due to its unique meaty characteristics. Pekin duck is an important breed resource of meat duck, which has been used in meat production and product research. However, the study about whole genome resequencing analysis of ducks for meat production has not been reported and the underlying mechanisms of meat production remain undefined.

Increase Dietary Fiber Intake Ameliorates Cecal Morphology and Drives Cecal Species-Specific of Short-Chain Fatty Acids in White Pekin Ducks.

The current study was to investigate the modulatory effects of total dietary fiber (TDF) levels on cecal morphology and the response of microbiota to maintain gut health for duck growth. A total of 192 14-day-old male white Pekin ducks were randomly allocated to three dietary groups and fed diets, containing 12.4, 14.

Effects of Total Dietary Fiber on Cecal Microbial Community and Intestinal Morphology of Growing White Pekin Duck.

The current study was to investigate the effects of total dietary fiber (TDF) on growth performance, cecal structure, cecal microbial community, and short-chain fatty acids (SCFAs) profiles in the cecum of growing White Pekin ducks. A total of 108 male Pekin ducks of 14-days-old were randomly allocated and fed diets containing 12.4, 14.

Genomic divergence during artificial selection by feed conversion ratio in Pekin ducks.

Pekin ducks are world-famous for its fast growth and have become the majority of breeds rearing in duck industry. Feed conversion ratio (FCR) is an important trait in Pekin ducks breeding and production, and the underlying biological processes are complex. To gain an insight to the possible biological mechanism underlying the FCR in Pekin ducks, an artificial selection population (S) and a natural population (Z7) were used in this study.