Diagnostic reagents can be divided into two categories: in vivo diagnostic reagents and in vitro diagnostic reagents. It is mostly a reagent for detection by the reaction between antigen and antibody. Urine Rapid Test Kit,Rapid Test Kit 6-Panel,Toxoplasma rapid test kits,Fecal Occult Blood Test Jilin Sinoscience Technology Co. LTD , https://www.jlgkscience.com
A: Classification of in vitro diagnostic reagents:
1. In vitro biodiagnostic reagents managed as drugs include:
1. Blood type and tissue type reagents;
2. Microbial antigen, antibody and nucleic acid detection reagents;
3. Tumor marker reagents;
4. Immunohistochemistry and human tissue cell reagents;
5. Human genetic testing reagents;
6. Biochips;
7. Allergy diagnostic reagents.
2. In vitro reagents managed as medical devices include:
1. Clinical basic test reagents;
2. Clinical chemistry reagents;
3. Blood gas and electrolyte determination reagents;
4. Vitamin determination reagents;
5. Cell histochemical stains;
6. Autoimmune diagnostic reagents;
7. Microbiological test reagents.
B: According to medical test items, clinical diagnostic reagents can be roughly divided into clinical chemical test reagents, immunology and
Serological testing reagents, hematological and cytogenetic testing reagents, microbiological testing reagents, body fluid excretion
Detection reagents, genetic diagnosis reagents, etc. Among them, the market share of clinical chemistry
The largest, close to 34%; followed by the immunology market, accounting for about 29%. Novel immunodiagnostic reagents and genetic diagnostic tests
The reagent was developed in the late 1980s, and it is the most common diagnostic reagent for all current diagnostic reagents, regardless of technology or market.
The fastest growing product.
According to tests conducted by professional agricultural departments, the growth and development pattern of beef cattle shows that they grow rapidly before the age of one year. After reaching one year old, their growth rate begins to slow down significantly, especially between 1.6 to 2 years of age. For example, with Charolais cattle, the average daily weight gain is between 1.5 to 1.8 kilograms during the first six months after birth, and then drops to around 0.9 to 1.05 kilograms between seven and twelve months. These findings indicate that younger calves require far less feed to gain a kilogram of body weight compared to older animals. As a result, from a cost-efficiency standpoint—considering total feed consumption, capital investment, and equipment utilization—it is more beneficial to raise and fatten young cattle rather than older ones.
In practice, calves are typically weaned between 4 to 6 months of age. During summer and autumn, they are mainly grazed on pasture, with supplemental feed provided as needed. In winter and spring, they are kept in plastic greenhouses or barns to protect them from cold weather. Most cattle are raised until about 1.5 years of age, with the best time for slaughter being when they reach approximately 300 kilograms. This timing ensures optimal meat quality and efficient feed conversion, making it a common practice among farmers to aim for this weight at slaughter.