When the hens pay for the calcium production, most eggs are laid in the morning, and the next egg yolk is discharged from the ovary into the fallopian tube half an hour after the egg is laid. Therefore, the hens do not need to be supplemented with calcium in the morning. By 14 o’clock in the afternoon, as the egg shell deposition rate increases, the amount of calcium consumed by chickens will increase. Therefore, in order to make laying hens produce more eggs and produce good eggs, the effect of feeding calcium hens with laying hens is best at 12 to 18 o'clock every day.
Calcium supplementation methods and effects Calcium source feeds can be placed on their own, allowing any chicken to eat freely, or they can be fed mixed with feed. Calcium source feed has a good effect on improving chicken egg production, egg fertilization rate, chick hatching and shelling rate, serum calcium content, and egg shell thickness.
Calcium supplementation The production of laying hens requires calcium supplementation, but it is not always better. For a layer of eggs, 4.4 grams of calcium is required for each egg. The calcium content in the diet is 3.0%-3.5% to meet the production needs of the layer.
Disclaimer: Some articles in this website have been transferred from the Internet. If you are involved in third party legal rights, please inform this website. phone
Magnetic Bead Nucleic Acid Extraction Reagent
The magnetic bead method nucleic acid extraction kit is a high-tech product that combines biological science and nanomaterial science. It is a major breakthrough in my country's nucleic acid extraction and purification technology. . Magnetic bead method for nucleic acid extraction has incomparable advantages over traditional DNA extraction methods, which are mainly reflected in: 1. It can realize automatic and large-scale operation. At present, there are 96-well nucleic acid automatic extraction instruments, and the extraction time of one sample can be realized. The processing of 96 samples complies with the high-throughput operation requirements of biology, enabling rapid and timely response to infectious disease outbreaks, which makes traditional methods unmatched; â‘¡ The operation is simple and time-consuming, and the entire extraction process has only four steps , most of them can be completed within 36-40 minutes; â‘¢ Safe and non-toxic, no toxic reagents such as benzene and chloroform in traditional methods are used, and the damage to experimental operators is minimized, which fully conforms to modern environmental protection concepts; â‘£ Magnetic beads and nucleic acids The specific binding of the extracted nucleic acid results in high purity and high concentration of the extracted nucleic acid. According to the same principle as the silica membrane spin column, the superparamagnetic silica nano-magnetic beads are prepared after the surface of the superparamagnetic nanoparticles is modified and modified by nanotechnology. The magnetic beads can specifically recognize and efficiently bind to nucleic acid molecules on a microscopic interface. Using the superparamagnetic properties of silica-coated nanomagnetic microspheres, under the action of Chaotropic salts (guanidine hydrochloride, guanidine isothiocyanate, etc.) and an external magnetic field, samples from blood, animal tissues, food, pathogenic microorganisms, etc. The isolated DNA and RNA can be used in clinical disease diagnosis, blood transfusion safety, forensic identification, environmental microbial testing, food safety testing, molecular biology research and other fields. Magnetic bead nucleic acid extraction can generally be divided into four steps: lysis-binding-washing-elution. Genetic testing will surely become a new symbol of the development of the biological industry. The emergence of high-throughput, automated nucleic acid extraction methods will reduce the labor cost of genetic testing, make large-scale testing a reality, and make it possible for genetic testing to reach ordinary people.
Magnetic Bead Nucleic Acid Extraction Reagent,Nucleic Acid Extraction Reagent,Extraction Kit Magnetics Bead Method,Magnetic Bead Acid Nucleic Extraction Kit
Jilin Sinoscience Technology Co. LTD , https://www.jilinsinoscience.com