'come on! Come on! " Under the guidance of the trainer, Kecheng, a cloned police dog less than 4 months old, ran across obstacles and successfully bit a 'suspect'. On November 20, in the police dog base of Beijing Public Security Bureau, six police cloned dogs born in August 2019 officially became members of the capital police dog team by wearing police badge and color collar and police dog clothes with the capital police dog logo.
The reporter of Beijing Youth Daily learned that the birth of these six police cloned dogs marks the first breakthrough in the exploration and application of police dog cloning technology by the Beijing Municipal Public Security Bureau. The production of four police cloned dogs in a single fetus is the first in the world. Therefore, the Beijing Municipal Public Security Bureau has become the unit with the largest number of police cloned dogs in public security organs in China.
original intention
Want to inherit the excellent individual police dogs
Starting from the South Second Ring Road of Beijing, go south along the first route of Jingkai expressway for 20 kilometers and then arrive at the police dog base of Beijing Public Security Bureau. It is subordinate to the Criminal Investigation Corps of Beijing Public Security Bureau. It is a secondary police dog breeding base of the Ministry of public security. It is responsible for organizing and managing the technical work of police dogs in the city. It is known as the "cradle of police dogs in the capital".
Since its completion in 1954, 1978 police dogs have been born here. They have been transported to all departments of the overall situation and embarked on the road of police investigation and case solving, explosion-proof security inspection and security together with its trainers.
'every year we breed a large number of dogs, more than 100. With the increase of the number, we are more and more considering how to improve the quality of dogs and what means we can keep more excellent dogs. " Ma Jinlei, a policeman of the police dog technical detachment of the Criminal Investigation Corps of Beijing Public Security Bureau, told the Beiqing daily that how to inherit such excellent police dogs, improve breeding efficiency and shorten training cycle is an important topic in front of the police dog base of Beijing Public Security Bureau in recent years.
In early 2019, they had the idea of breeding cloned dogs. The doctor of clinical veterinary medicine, who graduated from the school of animal medicine of China Agricultural University, is a scientific and technological talent specially introduced by the Beijing Municipal Public Security Bureau and the initiator of the "research program of police dog precision breeding core technology". With this idea, which dog to choose as a donor has become the first step for the police in the police dog base.
SKIDING, a five-year-old meritorious dog of the Ministry of public security, is a Belgian marinua dog with outstanding search and Explosion ability, strong physique, outstanding sense of smell, great wisdom and outstanding military achievements. It is the best among the excellent police dogs independently bred and cultivated in Beijing police dog base.
At the age of four, areh, an adult dog introduced from abroad, is a malinua dog with strong biting and pressure resistance. He has outstanding explosive power and attack power. He is the strongest among biting dogs. Two dogs were shortlisted at the same time.
achievements
Six cloned police dogs were born one after another
In early 2019, relying on the police enterprise cooperation mechanism, the police dog base of Beijing Public Security Bureau cooperated with Beijing sinovalley company to jointly cultivate excellent police dogs by using somatic cloning technology. The first cloned samples were skittin and ARI. " We have advantages in identifying when the female dog will discharge mature eggs, the care of the female dog and the culture of the puppies. The company has more advantages in molecular biology and cell operation. This police enterprise cooperation can be said to be a strong alliance. " Ma Jinlei said that the members of the project team intercepted skin samples from SKIDING and Ari's skin respectively, established fibroblast cell lines two weeks later, and implanted the new cloned embryos into the fallopian tubes of female surrogate dogs after embryo culture.
Next, we are waiting for the birth of a new life. On August 1 and 4, 2019, six cloned police dogs were born one after another. Among them, on August 1, surrogate dog a gave birth to four cloned police dogs (SKIDING clone sample), and surrogate dog B gave birth to one cloned police dog (SKIDING clone sample); On August 4, surrogate dog C gave birth to a cloned police dog (ariclone sample). Six cloned police dogs were born with an average weight of 450g and an average body length of 18cm. After birth, the scores of physiological indexes such as weight standard, respiration and heartbeat reached the standard, and the performance of behavioral reflex such as strength, feeding and milk seeking was excellent.
According to the identification of Nanchang police dog base of the Ministry of public security, the DNA of 6 cloned dogs is more than 99% consistent with that of donor dogs, which proves that there is an identity relationship between them, which marks the first time in the world to produce 4 cloned police working dogs, which provides an analytical basis for batch cloning and behavioral traits research of police dogs in the future. At the same time, the Beijing Municipal Public Security Bureau has thus become the unit with the largest number of police cloned dogs in the national public security organs.
characteristic
The ability level is higher than that of ordinary breeding police dogs
At present, six cloned police dogs are nearly four months old, with an average weight of 15.3 kg and an average body length of 52 cm. In addition to the same appearance, they have great similarities in learning and memory ability, exploration desire, courage, aggression and so on.
After birth, the police dog base began to carry out adaptive training for them in the aspects of touch, hearing, smell and spatial sense, such as whole-body touching, spatial transformation, temperature perception, playing music, food or object induction, which effectively filled the gap in the early training of police puppies from 0 to 8 weeks, and laid a foundation for improving the puppies' adaptability to the environment and disease resistance. From the second week, they began to carry out relevant training in terms of physical fitness, obedience, possession and courage in accordance with the assessment standards in the rules for police dog breeding of the Ministry of public security.
"From the data we recorded, these dogs are improving every week after training." Liu Shasha, a police officer with a dog, said that for several police officers with a dog, cloned police dogs are the same as their babies. 'they are very cute. We want to hold them in our arms all the time, but we can't. We must cultivate their police usefulness. Judging from the current data, they perform very well in terms of physical fitness and flexibility. "
At present, the above ability levels of six cloned police dogs have reached the ability level of police dogs six months in advance. In the next step, the police dog base will strictly train and closely monitor six cloned police dogs, and continue to carry out joint research and development with cooperative enterprises around the batch cloning of police dogs and the establishment of excellent police dog cell bank. Using modern gene technology, we will further realize the accurate breeding and popularization of excellent police dogs.
(source: Beijing Youth Daily)