Eliminating individuals with hypoplasticity of congenital organs and semi-male and female individuals. The female deer that exceeds the breeding age and enters the aging period should be eliminated in time to avoid excessive inbreeding. Female deer suitable for mating age: Sika deer born at 16 months of age, red deer 20 months of age began to show sexual behavior, can produce eggs to breed, but at this time the structure and function of the female deer body organs has not yet reached perfect, body type, body height When the body length is still in development, early mating will affect the female deer's development and age of use. Breeding offspring is weak and has poor development. The female deer should be allowed to breed at 36% of the standard body weight. The female deer should be about 2 years old; the female deer should be about 4 years old. Individual primates with estrus are not obvious and should be observed. Captive breeding and captive breeding combined with grazing should be chosen as far as possible. The female deer herd should have the best age structure: the proportion of female deer, old deer, and deer is too high. Even a female deer with a 2 year old breeding age will not only directly affect the fecundity of herds, but also Breeding has a greater impact. According to pedigrees, female nuns with strong fecundity, large breasts, early babybearing deer, twin female deer, and females with more males are reserved for species use. Reasonable nutritional levels, female deer too fat, too thin will affect fertility. A sufficient amount of protein, vitamins and mineral salt feed was given in the week before weaning in May until mid-July estrus. During the estrus breeding period in mid-July, the sika deer was kept in the middle and upper sensation, the red deer had the first-rate sensation, and the fertility was increased. By making full use of the advantages of hybridization, the species of male or female deer and the female deer in the field are used for interspecies or pre-type hybridization to increase the reproduction rate, survival rate, twin birth rate, and male production rate. Using modern breeding techniques, such as artificial insemination technology, estrus technology and corresponding leak detection and replacement techniques, etc., do a good job of female deer fetuses to prevent fetal death, rotten fetus, miscarriage, premature birth, abandoned child, and delirium. Wait for the situation to happen. China Agricultural Network Editor
Household Oxygen Generator
Household Oxygen Generator is a type of machine for producing oxygen, its principle is to use air separation technology. First, the air is compressed at a high density and then the different condensation points of each component in the air are used to separate the gas and liquid at a certain temperature, and then rectify it to separate it into oxygen and nitrogen. In general, people are used to calling it an oxygen generator because it is mostly used to produce oxygen. Because oxygen and nitrogen are widely used, oxygen generators are also widely used in the national economy. Especially Homecare Oxygen Concentrator and Household Medical Devices for hospital and household.
The first countries in the world to produce oxygen generators were Germany and France. The German Linde Company made the world's 10th m3/s oxygen generator in 1903. Following Germany, the French Air Liquide Company also began to produce oxygen generators in 1910. Since 1903, the oxygen generator has a history of 100 years.
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