See the meat and know what the sheep eat

Introduction: Nowadays, people pay more and more attention to food safety, and consumers increasingly want to know the "context" of their meat products The French National Institute of Agronomy has recently developed a rapid identification method, which can identify whether sheep are raised by grass in the pasture, providing a new means to increase the transparency of production and sales of mutton products Fresh grass is rich in carotenoid pigments, but most of these pigments will be destroyed in the process of turning over and silage; in addition, food and tuber root and tuber plants do not contain this substance Therefore, only sheep that eat fresh grass have traces of this substance According to this, the National Institute of agronomy of France has developed a convenient method to identify the feeding mode of sheep NpP According to the information released by the Institute in the latest research trends, the researchers have developed a blood test method to test the content of carotenoids in sheep's blood before slaughter; and a spectrometer to measure the content of carotenoids in sheep's kidney fat after slaughter according to the specific absorption spectrum of carotenoids, because the fat tissue is the most tolerant This substance is easy to retain NPP researchers said that to test the accuracy of this identification method, they divided 32 sheep into two groups, one group was all grazing on the grass, the other group was completely fed with feed, and then identified with two methods respectively The results show that the accuracy of blood test is 95%, and that of spectrometer is 100% In addition, the spectrometer method is simple and easy to operate It only needs to be equipped with a portable spectrometer, which will not cause any harm to the meat quality, and will not cause any pollution Therefore, this method is more worthy of promotion NPP researchers also pointed out that the method they invented was only used in a small number of sheep, and passed the test in two "extreme" ways of raising sheep At present, they are testing the method on a larger scale In addition, they are working with other research groups to promote the application of this method in testing meat and dairy products of other herbivores NpP