There are many ways to breed black goats, including grazing, granular feed, and agricultural supplements. Many people are now using fermented green fodder to feed black goats. This is also a good way to feed black goats. The golden fodder fermented by the use of the gold baby feed starter has comprehensive nutrition, good palatability, easy digestibility, wide source, low cost, simple and convenient, and small profit. Feeding green feed should pay attention to the following issues: 1, harvest at an appropriate time. In the young period, the content of protein, minerals and vitamins is higher, crude fiber is less, and it is easily digested. Green fodder in this period is the best place to feed sheep. 2, green feed must be kept fresh and clean, to prevent moldy rotten, it should be noted that just sprayed pesticide green feed can not feed sheep. 3, green feed can be fed fresh, can also be fed after drying. There is chopped, beaten, fermented or siled and fed. 4, with other feeds. According to the different growth periods of black goats, to ensure the black goats need for a variety of nutrients. Black goats' daily forage should be stable. If black goats are bred, their forages should be relatively stable and prevent sudden changes in sheep fattening, especially for fattening or fast fattening. This requires forage to be relatively stable. If it suddenly changes, it will inevitably cause environmental changes in the rumen, directly affect the rumen microflora and fermentation activities, resulting in reduced fermentation and forage digestibility and absorption rate, and even cause digestive tract diseases. Green feeds and concentrates are fed separately to black goats. When the black goat is hungry, the gastrointestinal system will secrete large amounts of digestive juice. Concentrated feed is rich in nutrients, small in size, less in crude fiber, suitable in palatability, high in quality, easy to digest, and easy to absorb. It is best to feed concentrates first. If green fodder is mixed with concentrated fodder to feed sheep, it will be better to feed black goats separately because green fodder is bulky and has a lot of water, which will reduce the digestibility and absorption and utilization of concentrate feed. Extraction Kit Magnetics Bead Method
This standard specifies the terms and definitions, classification, technical requirements, test methods, identification, labels and instructions for use, packaging, transportation and storage of nucleic acid extraction kits (magnetic beads method) (hereinafter referred to as "kits"). This standard It is suitable for extracting and purifying human genomic nucleic acid and its fragments from various clinical samples such as serum, plasma, whole blood, cerebrospinal fluid, milk, saliva, urine, sputum, swab, tissue or paraffin-embedded tissue by magnetic bead method , Pathogen nucleic acid kit. Pathogen nucleic acid includes deoxyribonucleic acid (DNA), ribonucleic acid (RNA), etc. This standard does not apply to nucleic acid extraction reagents contained in closed systems that cannot extract nucleic acid extraction products for detection.
This kit uses magnetic beads with unique separation function and a unique buffer system to separate and purify high-quality virus from serum, plasma, lymph, cell-free body fluid, cell culture supernatant, urine or various virus preservation solutions DNA/RNA. The uniquely embedded magnetic beads have a strong affinity for nucleic acids under certain conditions, and when the conditions change, the magnetic beads release the adsorbed nucleic acids, which can achieve the purpose of rapid separation and purification of nucleic acids. The whole process is safe and convenient, and the extracted viral DNA/RNA has high yield, high purity, stable and reliable quality, and is especially suitable for automated extraction of high-throughput workstations. The nucleic acid purified by this kit can be applied to various routine operations, including RT-PCR, fluorescence quantitative PCR and other downstream experiments.
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