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by
Feng-Li Yang |
Total Records (
2 ) for
Feng-Li Yang |
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Feng-Li Yang
,
Xiao-Shan Li
,
Bao-Xiang He
,
Yu-Lan Du
,
Gong-He Li
,
Bin-Bin Yang
and
Huang Qin-Hua
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The purpose of this study was to investigate the incidence of Clinical Mastitis (CM) and Subclinical Mastitis (SCM), isolation and identification of the major pathogens and test the antimicrobial resistance of milk bacterial isolates in subtropical dairy farms in Guangxi region (south of China) between 2005 and 2009. The average percentages of blind quarter(s) at cow and quarter level were 11.5 and 3.7%, respectively. The incidence of CM at cow and quarter level were 8.7 and 3.7%, respectively while that of SCM at cow and quarter level were 48.8 and 19%, respectively. A total of 105 and 56 microorganisms were isolated from the 109 CM and 67 SCM samples, respectively. The most common bacterial isolates from CM cases were S. aureus (29.5%), E. coli (25.7%) and C. neoformans (16.2%), however in SCM they were S. aureus (32.1%), CNS (19.7%) and St. agalactiae (17.9%). The antimicrobial sensitivity test indicated that all the antimicrobial agents (except for ampicillin) showed lower proportion of resistant isolates of all the isolated bacteria (except for C. neoformans), among the employed antimicrobials, Ruyanxiao showed the lowest proportion of resistant isolates. |
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Qin-Hua Huang
,
Bao-Xiang He
,
Feng-Li Yang
,
Hua-Li Zeng
and
Qian-Nan Zhao
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The purpose of this study was to investigate the effect of high-cholesterol diet on serum leptin levels and blood lipid in rabbits. About 20 rabbits were randomly divided into two groups: high-cholesterol group (n = 10) which was maintained on high-cholesterol diet for 12 weeks and control group (n = 10) which was fed with normal diet for 12 weeks. Blood lipid and leptin analyses were performed at 0, 6 and 12 weeks after the high-cholesterol diet. Compared with the control group, rabbits fed with high-cholesterol diets showed higher levels of serum total cholesterol, low-density lipoprotein cholesterol and leptin. |
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