Zi-Rong Xu
Zhejiang University
Network
Latest external collaboration on country level. Dive into details by clicking on the dots.
Publication
Featured researches published by Zi-Rong Xu.
British Poultry Science | 2006
Xiuan Zhan; Jian Xin Li; Zi-Rong Xu; RuQian Zhao
1. This study was conducted to investigate the effects of methionine and betaine supplementation on growth performance, carcase composition and lipid metabolism in growing broilers. 2. A total of 450 commercial broilers, 22u2009d of age, were randomly allocated to three groups, each of which included three replicates (50 birds per replicate). The groups received the same methionine-deficient diet supplemented with 0 or 1u2009g/kg methionine, or 0·5u2009g/kg betaine, respectively. 3. Methionine and betaine supplementation significantly improved weight gain and feed conversion. Supplemental methionine and betaine also significantly increased breast muscle yield and decreased abdominal fat content. Meanwhile, addition of methionine and betaine significantly increased the contents of creatine and free carnitine in liver, the activity of hormone-sensitive lipase in abdominal fat and the concentration of free fatty acid in serum, whereas uric acid concentration in serum was significantly decreased. 4. The results of this study suggest that betaine can spare methionine in its function as an essential amino acid and is as effective as methionine in improving performance and carcase quality of growing broilers if the diet is moderately deficient in methionine. The decrease in abdominal fat may be due to the increased carnitine synthesis in liver and hormone-sensitive lipase activity in abdominal fat.
Archives of Toxicology | 2006
Xiuan Zhan; M. Wang; Zi-Rong Xu; Wei Fen Li; Jian Xin Li
Sixteen barrows (Duroc×Landrace×Yorkshire) were randomly divided into two groups, each consisting eight pigs. The groups received the same basal diet supplemented with 0 and 400xa0mg/kg fluoride, respectively. Histological examinations, including in situ terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL), Haematoxylin and Eosin staining (HE) and transmission electron microscopy observation, found apoptotic hepatocytes 50xa0days after additional 400xa0mg/kg fluoride treatment. The obvious DNA ladder and the significantly increased both hepatic caspase-9 and caspase-3 activity indicated that fluoride induced caspase-dependent apoptosis in vivo. In addition, serum glutamate pyruvate transaminase (GPT) activity and hepatic lipid peroxides (LPO) concentration was significantly increased. The activity of serum glutamate oxaloacetate transaminase (GOT) showed an increased trend. The results suggest that fluoride induces apoptosis by elevating the oxidative stress-induced lipid peroxidation, causing mitochondrial dysfunction and further activating caspase-9 and caspase-3.
Animal Feed Science and Technology | 2007
Xiuan Zhan; M. Wang; RuQian Zhao; WeiFeng Li; Zi-Rong Xu
Animal Feed Science and Technology | 2007
Yanbo Wang; Jianzhong Han; Weifen Li; Zi-Rong Xu
Animal Feed Science and Technology | 2007
Wenju Zhang; Zi-Rong Xu; Shun-Hong Zhao; Jianyi Sun; Xia Yang
Animal Feed Science and Technology | 2007
Yizhen Wang; Tizhong Shan; Zi-Rong Xu; Jie Feng; Zhong-Qiang Wang
Journal of Trace Elements in Medicine and Biology | 2006
Xiuan Zhan; M. Wang; Zi-Rong Xu; Wei Fen Li; Jian Xin Li
Animal Feed Science and Technology | 2007
M. Wang; Zi-Rong Xu; L.Y. Zha; M. D. Lindemann
World Journal of Gastroenterology | 2004
Wei-Fen Li; Jie Feng; Zi-Rong Xu; Cai-Mei Yang
Archive | 2005
Xiuan Zhan; Zi-Rong Xu; Jian-xin Li; M. Wang