The latest news of intelligent agriculture: molecular markers share a common language, Taiwan sea bream breeding is more accurate.

Intelligent agriculture is not only the facilities to be in place, but also the management and control of breeding varieties. With the injection of 4.0 grant funds for intelligent agriculture of the Fisheries Experimental Institute, Sparus macrocephalus aquatic science and technology has been injected with the genetic identification technology of the Technical transfer Water Test Institute in 107. and set up a simple laboratory to test the molecular markers of fish species, increase the success rate of breeding to 100%, effectively manage the performance cultivation of fish species on the farm and commercial species, and reduce breeding costs.

"in the past, we used to see with the naked eye and eliminate unsuitable fish, thinking that it would be okay to choose the fish at the top of the pyramid, but it was not accurate enough." Huang Yisheng, chairman of San Sparus Fisheries Technology, said that in 103, Sparus transferred the TsR strain of red tilapia to select the desired species of fish through genetic differences in body color, and the target species could be selected when they were young. The difference in body length could be seen without having to go to adults, and the success rate of breeding could reach 95%. After using transgenic identification technology again in 107 years, after using molecular marker technology to establish a database, as long as we capture the tissue, we can know whether this fish is a target fish or not, raising the success rate of breeding to 100%.

Zeng Fusheng, a researcher in the aquaculture group of the Water Test Institute, which assists Sparus macrocephalus in learning molecular marker technology, said that when the Water Test Institute transferred six pairs of marine tilapia TFS strain to the operator about three years ago, it first listed the gene of mariculture as one of the molecular markers. Later, when the operator hybridized this strain with the fish grown on the farm, it would eliminate the unsuitable individuals and finally leave the offspring that they thought were more suitable for sale. The water test station cuts the fin again to determine whether it is a species that has been tracked before. If you record the genetic sequence of these species that are considered to be good varieties, you will know that they are appropriate when you see a specific marker later. "Molecular markers are like identity cards. Because these fish are economic species, we have to leave good characteristics, but the description of their appearance is not necessarily the same. With the help of genes, we can judge objectively."

Tseng Fu-sheng explained that these recorded gene sequences only reflect commercial needs and do not necessarily have academic characteristics and definitions, but academia can use these data to further understand the relationship between genes and characteristics. Fish species that have been transferred can also be tracked continuously through recorded molecular markers. In addition, through these data, when farmers respond to breeding or breeding problems, researchers will be able to communicate effectively with farmers and provide assistance, unlike in the past, farmers will not use a set of their own appearance recognition vocabulary, researchers can not understand.

Huang Yisheng recalled that in the past, when communicating with researchers, they all had a set of terms for judging the selection of breeding fish, which was difficult to connect. Now they can't talk to ducks through molecular marker technology, and they can operate at the small fish stage. As long as you cut a fin and use PCR's extended technology to test, you can track the bloodline of the fish, judge the characteristics of its growth and control, so as to save the cost of breeding. Increase the success rate of breeding to 100%.