1Development status of animal husbandry in the first half and its trend in Guangdong in the next half of 2006Zhang Yongfa, Chen Yingfeng3-52Research progress of Streptococcus suis identificationTian Yun, Sun Yanwei6-93Research progress of the biological availability CpG-DNA to livestock and poultry10-124Research progress of Gosling plague13-155Application of Nosiheptide, a new feed additive in animal productionLi Zhen, Du Haiyan16-186Influence of different dietary crude protein level on latter weigh gain in young pigeon19-217Influence of "Zhuangneng", a feed additive on performance and pork quality in pig22-248Relationships between nutrition and reproductive performance of primiparous sowChen Hongling, Liu Guangzhen25-279Primary diagnosis report of "a new type duck plague" occurred in some areas of Guangdong provinc28-28,3210Primary observation of X-ray image about canine manmade pleural effusion29-3211Cause, prevention and control of sow endometritis in large-scale pig farms34-3512Application of fluorescent PCR method in diagnosis of swine streptococcus disease38-3913Multivariate successive regression analysis of slaughter traits of Xianhu duck40-4114Detection of transparency and oxygen-consumption of imported bathed duck feather42-4315Arrest comparison of four kinds of hardstuffs to lions, tigers and leopards44-4616Curative effect of Qingwenzhilisan on Colibacillosis of broilerLi Ming47-47,4917Measures for reducing incidence of PSE pork in salaughtenhouse50-51 