Successful Embryo Transplantation of Yunnan Dubo Yang

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After careful selection of embryo transfer by biological experts, in mid-March, the fine Durbu sheep embryos introduced from New Zealand by Yunnan Zhongke Embryo Engineering Biotechnology Co., Ltd. were born in Jinning and used local ewes as surrogates, resulting in the successful production of 68 heads. "Baby babies" have survived so far. This is the first time in Yunnan that the use of biological high-tech frozen embryo transfer technology to breed Dubai sheep has been successful, and it has provided excellent breeding sheep for the development of sheep breeding in Yunnan Province. Embryo transplantation engineering is a high-tech biotechnology project. Its popularization and application can increase the utilization rate of breeding stocks, shorten the cultivation of breeding stocks, and accelerate the breeding speed of good breeds. With the support of provincial, municipal and county animal husbandry scientific research departments, Yunnan Zhongke Embryo Engineering Biotechnology Co., Ltd. has established a breeding base for dolphin sheep in Jinning Baofeng. With the help of the advanced technology of scientific research institutions, it has fostered the development of suitable embryos. The excellent herds of climate pastures in Yunnan Province lay a solid foundation for the industrialization of embryo transfer and the quality of herds. In October last year, Yunnan Zhongke Embryo Engineering Biotechnology Co., Ltd. invested 600,000 yuan, introduced 300 registered purebred dumb sheep embryos from the New Zealand Sheep Breeders Association, and selected Yunnan local high-quality sheep as recipients for embryo transfer. After synchronous estrus and other technical treatments, the first batch of 102 purebred Dorper sheep embryos were successfully implanted into the surrogate mothers, and the pregnancy rate was 74.5%. From March 6th to March 14th, the surrogate mothers successively produced 68 “foreign babies” with a lambing rate of 66.7%. It is understood that Du Bo Yang is a large meat sheep, fresh meat, the market potential, has a very high economic value. Adaptable, can grow in most parts of Yunnan Province. Rapid growth and development, 1 year old ram weight up to 105 kilograms, ewes weighing 85 kilograms. It is reported that the market price of a kind of sheep is between 15,000 and 2 million. Duby sheep embryo transplantation has been successfully tested in Yunnan Province and will promote the development of the modern sheep industry in Yunnan Province.

Epichlorohydrin (ECH)

Epichlorohydrin, 3-Chloro-1, 2 - epoxypropene, chloropropylene oxide ,ECH .

Molecular Formula: CH2OCHCH2Cl, C3H5OCl

Properties: It is a volatile, unstable colorless liquid with irritating odor similar to chloroform and ether. Molecular weight is 92.85, density, 1.1806g/cm3, boiling point, 116.11°C, freezing point, -57.2°C, refractive index (nd20), 1.4382, flash point (open cup), 40.6°C, and ignition point, 415°C. It is slightly soluble in water, miscible with many organic solvents, and able to generate azeotrope with a variety of organic liquids.

Main Applications:
Epichlorohydrin is an important organic industrial chemical and a chlorine-consuming product in fine chemicals, mainly for producing epoxy resin, synthetic glycerin, epichlorohydrin rubber, nitroglycerine explosives, glass fiber reinforced plastics, and electrical insulation products, which are widely used in the chemical industry, light industry, transportation, medicine, electronics and other fields. It also can be used as solvent for cellulose ester, resin, and cellulose ether, and the raw material of plasticizer, stabilizer, surfactant, and chloroprene rubber.

Toxicity and Protection: It is highly toxic, absorbed through the skin, and irritating to skin and mucous membranes. In higher concentrations, it has the function of narcotism. When poisoning occurs, there will be eye irritation, conjunctivitis, rhinitis, lacrimation, cough, fatigue, gastrointestinal disorders, nausea and other symptoms. Serious poisoning may lead to anesthesia or even lung, liver or kidney damages. Lethal concentration of human beings is 20ppm. Lethal dose of rat is 5090mg/kg. The maximum allowable concentration in air is 5ppm (18mg/m3). Production equipment needs to be closed, air, circulating, and the operator, wear protective equipment. In addition, due to intense auto polymerization, epichlorohydrin can not be heated in the fire in case of container burst. As for reaction as reagent, it is appropriate to be diluted with inert solvent and slowly added.

Packaging, Storage and Transport:
As ferric chloride or stannic chloride can promote auto polymerization, epichlorohydrin should be stored in dry, clean iron barrel, 200kg each, and kept in a cool, ventilated, and dry place, away from fire and heat. Store and transport in accordance with the provisions of flammable toxic substances.

EPICHLOROHYDRIN SPECIFICATION DATA SHEET

ITEMS

GUARANTEED SPEC

PURITY% (m/m)≥

99.9

DENSITY g/cm3

1.180-1.183

COLOR(pt-co)≤

10

MOISTURE%(m/m)≤

0.05


Epichlorohydrin

Epichlorohydrin (Ech),Epichlorohydrin 106-89-8,99.9% Epichlorohydrin,High Quality Epichlorohydrin

Shandong Tiancheng Chemical Co., Ltd. , https://www.tianchengchemical.com