郑州怀了7个多月能打掉吗(郑州怀孕4个月可以做四维彩超吗) (今日更新中)

CHANGSHA/HARBIN, Feb. 12 (Xinhua) -- As Chinese people are embracing the arrival of the Year of Tiger on Saturday, zoologists are worried about the survival of South China Tigers as the endangered species are facing a serious problem of inbreeding.No traces of the tigers have been found in the last decade, they said.The number of captive South China tigers (Panthera tigris amoyenesis) rose to 92 in 2009 from 60 in 2007 but all the tigers were the offsprings of six wild South China tigers which were caught more than 40 years ago, said Deng Xuejian, a professor with the Department of Biology of Hunan Normal University, based in Changsha, capital of central China's Hunan Province."The inbreeding may lead to genetic freaks, low survival rates and poor physical makeup," Deng said.All the genes have come from two male and four female tigers, which had lead to highly identical genes in the offspring, Deng said."The situation may reduce the genetic diversity and cause degradation or even the extinction of the species," he said.The tigers would lose genetic diversity if their genes were too similar, said Ma Zaiyu, president of veterinary hospital of Changsha Zoo."The number of the members of a species should be at least 1,000 to maintain the stability of the species," Ma said.Zoologists estimated the number of wild South China tigers could have been less than 30 in the 1990s. The remaining wild tigers are presumed to live in the remote areas of Guangdong, Hunan, Fujian and Jiangxi provinces, Deng Xuejian said.Based on analysis of relevant date combining field investigation, Deng estimated the number of wild South China tigers could be less than 10.No traces of wild South China tigers were reported in Hunan in the last two years, said Zhou Shuhuai, director of wildlife protection section of the Hunan provincial forestry bureau."The number is limited and the tigers scatter in different areas, which make it difficult for natural breeding between wild tigers," said Huang Gongqing, a tiger expert at South China Tiger Breeding Base in Suzhou, a city of east China's Jiangsu Province."The extinction of the wild tigers will happen sooner or later," Huang warned.Some experts have said that there may be already no wild South China tigers. "However, we cannot know as the animal is very difficult to trace," Deng said.Ma Zaiyu said to avoid extinction of the species, more captive tigers should be bred, and some genes might be recovered when the population reaches 1,000, while Deng suggested continuous search for wild tigers to enrich the captive tigers' genes.The situation is much better for the Siberian tigers (panthera tigris altaica) in northeast China as the number of the wild ones is quite stable, experts said.The number maintains at around 20 in China, among which 10 to 14 are in Heilongjiang Province and eight to ten are in Jilin Province, said Sun Haiyi, deputy director of Heilongjiang Wildlife Institute"But no more young tigers under one year old have been discovered in the past two years. The reason might be the number of female tigers are less than the males and the animals are relatively isolated by the mountains," Sun said.China established a breeding base for the Siberian tigers in Heilongjiang in 1986 and the number of captive tigers has increased from eight to current more than 800, Sun said.Experts called for more efforts to protect the habitats of the tigers for the purpose of protection and re-wilding of the tigers.

BEIJING, Feb. 10 (Xinhua) -- Chinese President Hu Jintao on Wednesday urged the role of non-communist parties and personages in helping achieve the national goal for social and economic development in the new year."We must rely on all Chinese people, including various democratic parties, societies, ethnic groups and people from all walks of life and in different stratums to achieve this year's goal for economic and social development," said Hu at a symposium here Wednesday to mark the Spring Festival, or Chinese Lunar New Year, which falls on Feb. 14 this year.At the event, Hu extended New Year's greetings and best wishes to all people from the non-communists parties and the All-China Federation of Industry and Commerce and those without party affiliations.Chinese President Hu Jintao (3rd R), who is also General Secretary of the Communist Party of China (CPC) Central Committee and chairman of the Central Military Commission (CMC), speaks during a meeting with representatives of non-communist parties ahead of the Spring Festival in Beijing, capital of China, Feb. 10, 2010Hu expressed appreciation for their hard work last year as they offered valuable suggestions for coping with the financial crisis and maintaining stable and relatively fast economic growth, urging them to continue giving such suggestions.Non-communist parties' leaders at the gathering gave opinions on various issues including the transformation of the economic growth mode, expansion of private investment, development of ethnic regions, compulsory education in rural areas and economic and cultural exchanges between the mainland and Taiwan, among others.The meeting was chaired by Jia Qinglin, chairman of the National Committee of the Chinese People's Political Consultative Conference.

BEIJING, Feb. 1 (Xinhua) -- The Purchasing Managers' Index (PMI) of China's manufacturing sector stood at 55.8 percent in January, down 0.8 percentage points from the previous month, the China Federation of Logistics and Purchasing said on Monday.

BEIJING, March 14 (Xinhua) -- China's top quality watchdog said Sunday it has received complaints from consumers against HP laptops for quality problems.The General Administration of Quality Supervision, Inspection, and Quarantine pays close attention to the complaints and has started investigations, said a brief statement posted on the administration's website.The complaints included problems of overheated graphic chips and display screen problems.

BEIJING, March 1 (Xinhua) -- Chinese Vice Premier Hui Liangyu Monday urged local authorities to step up efforts to prevent forest and grassland fires as a severe drought put south China on a high fire alert.Authorities should beef up the supervision of fire sources, and respond scientifically to emergencies to curb major fires and casualties, and protect the public and forests and grassland, Hui said at a teleconference held by the State Council, or the Cabinet.A prolonged drought, which started last autumn, has hit southwest, south and parts of north China.According to the State Forestry Administration (SFA), from November to January, China reported 1,945 forest fires, which damaged 5,112 hectares of forests and killed two people.

来源：资阳报