Artificial insemination technology in the United States
With the increasing scale of breeding and the gradual promotion of breeding technology, pig artificial insemination technology has gained more and more attention in countries all over the world. Artificial insemination technology can make full use of the excellent performance of boars and expand the scope of use of boars, so that the superior boar produce more offspring and accelerate the breed improvement of pigs, and is not affected by the size and age of different pigs, and Can reduce the risk of disease introduced into the population. Artificial insemination requires higher management and operation techniques, but the benefits obtained through standardized management and training of inseminators are higher. In the United States, artificial insemination technology was used in the 1970s and in the 1990s, it gained rapid popularity. The penetration rate increased from 510% in 1992 to 3050% in 1997. The animal husbandry experts in the United States expect that 57 After the year, the application rate of artificial insemination in the United States will reach 80%. At present, most pig farms in the United States generally use artificial insemination or first natural mating, and use artificial insemination for the second and third times. It is supplied by large-scale professional sperm companies such as IBS (Iowa State), SGI (South Dakota State International Breeding Center), PAB (Minesota State Piper Artificial Breeding Company), etc. Promotion. Some large breeder breeding companies such as PIC, GIS (Indiana State Genetic Improvement Services), Comparts (Hai Kangpei Family Farm Complex), Decca, etc. also widely use artificial insemination technology for production. I. Facilities and supplies for pig insemination (1) Boar House A special boar house was set up. The boars were kept using a limit bar, and the barn was separated from the sow house by a certain distance. Sows are less exposed to boars on a daily basis, making them sensitive to scent of boars. Limiting rearing keeps boars in proper movement, and semen quality is stable, which in turn saves investment costs. Practice has proved that there is no significant difference in the limbs and hoof health, sexual desire, body condition, and service life compared to the rearing with boar bar, so in the United States, the boars in most pig farms are kept in the limit. In the column. (2) The sperm collection room The sperm collection room is generally built close to the boar bar and has an adjustable collection frame (female sow). It is fixed on the ground and the floor is covered with non-slip floor glue. The collection room is equipped with an operator safety zone. , as shown in Figure 1. The safety zone is located on both sides or corners of the sperm collection room, and is separated by a stainless steel column with a diameter of 10cm. The column and column are separated by about 28cm. When individual vicious boars bite the operator, the operator can quickly avoid Into the safe area, but the boar can not enter, can effectively guarantee the operator's safety. Figure 1 sperm chamber schematic (3) Laboratory The laboratory is the place where the semen is inspected, diluted, preserved, and dispensed. The semen is pumped from the harvesting chamber to the laboratory through a special closed pipe vacuum pump for the above work. The laboratory is divided into wet areas (placement and dilution, washing equipment), drying area (equipment handling and preservation of semen, such as microscopes, incubators and other), distribution area (separation of semen, packaging, ordering, etc.) as shown in Figure 2 As shown. Figure 2 laboratory schematic Laboratory equipment includes: phase contrast microscope, electronic sperm counter, programmable pump, slide insulation board, electronic balance, warm water bath, ultra-clean water system, electronic digital thermometer, automatic mixing stirrer, manual or automatic bagging Machine, incubator and so on. Functional Drink,Functional Beverage,Women Collagen Drink,Fish Collagen Peptide Drink Weihai Baihe Biology Technological Co., Ltd. , https://www.biohighnutraceutical.com