scholarly journals A study on the sternum growth and mineralization kinetic of meat duck from 35 to 63 days of age

2017 ◽  
Vol 96 (11) ◽  
pp. 4103-4115 ◽  
Author(s):  
H.Y. Zhang ◽  
H. Liao ◽  
Q.F. Zeng ◽  
J.P. Wang ◽  
X.M. Ding ◽  
...  
Keyword(s):  
2018 ◽  
Vol 209 ◽  
pp. 54-59 ◽  
Author(s):  
H. Liao ◽  
X.P. Wu ◽  
K.Y. Zhang ◽  
X.M. Ding ◽  
S.P. Bai ◽  
...  

2019 ◽  
Vol 195 (2) ◽  
pp. 569-578 ◽  
Author(s):  
Yunhan Zhang ◽  
Yaqi Chang ◽  
Ting Yang ◽  
Min Wen ◽  
Zhengyu Zhang ◽  
...  

2017 ◽  
Vol 14 (2) ◽  
pp. 50
Author(s):  
Dyah Wahyuni ◽  
Sofi Arisuteja ◽  
Sofia Sandi ◽  
Fitra Yosi

<p>This research aim to find out the effect of probiotic in ration on physical quality (pH, water holding capacity, cooking loss and tenderness) of duck meat. The materials used was local duck supplemented probiotic into ration. Research’s method used was Completely Randomize Design (CRD) consisted of 7 treatments and 4 replications namely P1(basic ration/ control), P2 (basic ration+probiotic), P3 (basic ration+infected by E.coli), P4 (basic ration+infected by Salmonella), P5 (basic ration+probiotic+infected by E.coli), P6 (basic ration+ probiotic+infected by Salmonella) and P7 (basic ration+probiotic+infected by E.coli+Infected by Salmonella). The results showed that probiotic suplementation about 106 cfu/ml into ration were no significantly effect on physical quality (pH, water holding capacity, cooking loss and tenderness) of duck meat.</p><p> </p><p>Keywords: probiotic, ration, physical quality, meat, duck</p>


2021 ◽  
pp. 101216
Author(s):  
Yan Wu ◽  
Shujing Xu ◽  
Xinhui Wang ◽  
Hongyang Xu ◽  
Peiyao Liu ◽  
...  
Keyword(s):  

2018 ◽  
Vol 97 (7) ◽  
pp. 2441-2450 ◽  
Author(s):  
S.J. Dai ◽  
K.Y. Zhang ◽  
X.M. Ding ◽  
S.P. Bai ◽  
Y.H. Luo ◽  
...  

Animals ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 1299
Author(s):  
Fengzhi Liu ◽  
Ruihua Zhang ◽  
Yupeng Yang ◽  
Hanqing Li ◽  
Jingyu Wang ◽  
...  

Colistin has been used as a growth promotant in livestock feed for many years. In China, mcr-1-positive Escherichia coli strains have been isolated from humans, chickens, and pigs. To date, there are few reports about the prevalence and molecular characteristics of fecal E. coli bearing mcr-1 in the meat ducks. In this study, the prevalence of mcr-1 gene was investigated among 120 fecal E. coli strains isolated from healthy meat ducks in Shandong province of China between October 2017 and February 2018. A total of nine mcr-1-containing E. coli strains were identified and two were identified as extra-intestinal pathogenic E. coli (ExPEC) among them. The clonal relationship of the nine E. coli strains was determined by multilocus sequencing typing (MLST) and pulsed field gel electrophoresis (PFGE), and the results indicated that all mcr-1-carrying isolates were clonally unrelated. Two different genetic contexts of mcr-1 were identified among these isolates. Colistin-resistant phenotype of all the isolates was successfully transferred to the recipient strains by conjugation experiments and seven transconjugants carried a single plasmid. The mcr-1 was located on three replicon plasmids: IncI2 (n = 4), IncFII (n = 2) and IncN (n = 1). Complete sequence analysis of a representative plasmid pTA9 revealed that it was strikingly similar with plasmid pMCR1-IncI2 of E. coli, plasmid pHNSHP45 of E. coli, and plasmid pWF-5-19C of Cronobacter sakazakii, implying that pTA9-like plasmids may be epidemic plasmids that mediate the spread of mcr-1 among Enterobacteriaceae. These results highlight that healthy meat duck is a potential reservoir for multidrug resistant mcr-1-containing E. coli strains.


Genome ◽  
2020 ◽  
Vol 63 (12) ◽  
pp. 615-628
Author(s):  
Xiaoya Yuan ◽  
Qixin Guo ◽  
Hao Bai ◽  
Yong Jiang ◽  
Yi Zhang ◽  
...  

Skin and feather follicle morphogenesis are important processes for duck development; however, the mechanisms underlying morphogenesis at the embryonic stage remain unclear. To improve the understanding of these processes, we used transcriptome and weighted gene co-expression network analyses to identify the critical genes and pathways involved in duck skin development. Five modules were found to be the most related to five key stages in skin development that span from embryonic day 8 (E8) to postnatal day 7 (D7). Using STEM software, 6519 genes from five modules were clustered into 10 profiles to reveal key genes. Above all, we obtained several key module genes including WNT3A, NOTCH1, SHH, BMP2, NOG, SMAD3, and TGFβ2. Furthermore, we revealed that several pathways play critical roles throughout the skin development process, including the Wnt pathway and cytoskeletal rearrangement-related pathways, whereas others are involved in specific stages of skin development, such as the Notch, Hedgehog, and TGF-beta signaling pathways. Overall, this study identified the pathways and genes that play critical roles in skin development, which may provide a basis for high-quality down-type meat duck breeding.


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