There is ongoing debate about the use of cool eggs in artificial incubation. Many people argue that non-cooled eggs are not suitable, and cold eggs are considered one of the five essential factors for successful hatching. It's believed that cooling eggs can help support embryonic development. However, the main purpose of cooling eggs is to reduce the internal temperature when it becomes too high.
In reality, if the temperature inside the incubator is already within the optimal range and does not exceed the acceptable limits, there is no need to cool the eggs. Cooling should only be applied when the temperature rises significantly, especially during the later stages of incubation when the embryos develop more rapidly. At this point, the eggs generate more heat on their own, which can lead to overheating in the hatchery.
When this situation occurs, it's important to manage the excess heat effectively. There are two common methods: one is to cool the eggs twice a day at regular intervals, lowering the temperature to 32°C (89.6°F) and then gradually warming them back up. The other method involves adjusting the hatch door opening to release excess heat. By monitoring the temperature control system’s indicators—such as whether the red or green light is on—you can determine if the door is open too wide or too little. If the red light stays on for too long, it means the machine is losing too much heat, and the heater is working unnecessarily. On the other hand, if the green light remains on constantly, it suggests that the heat isn’t being released properly, and the temperature may still be rising.
The key is to find the right balance so that the green light (power off) is on for longer periods than the red light (power on), which helps save energy and maintain stable conditions. Experience has shown that this approach not only reduces power consumption but also improves hatching outcomes without the need for excessive cooling.
It’s important to note that the ideal temperature isn’t just what’s displayed on the thermometer. In a well-designed incubator, the egg temperature throughout the chamber is consistent with the displayed temperature. However, in poorly constructed units, the temperature readings can vary greatly from the actual egg temperatures, especially in the center where heat tends to build up. In such cases, cooling the eggs becomes essential, and doing so significantly improves the hatching results compared to not cooling at all.
In summary, cooling eggs is a necessary intervention only when the incubator temperature goes beyond the acceptable level due to various factors. When the temperature remains stable and within the proper range, there’s no need for cooling. Always consider both the thermometer reading and the actual egg temperature to ensure optimal hatching conditions.
Herbal Extract
Plant extracts refers to substances extracted or processed from plants (all or part of plants) with appropriate solvents or methods. They can be used in pharmaceutical industry, food industry, daily chemical industry and other industries.
There is a conceptual intersection between plant extracts and Chinese herbal extracts. The raw materials of plant extracts in China mainly come from Chinese herbal medicine. Therefore, domestic plant extracts can also be called traditional Chinese medicine extracts to some extent. They are generally included in the category of traditional Chinese medicine products in China's export trade statistics.
Development History
China's plant extracts come from the traditional Chinese medicine industry, and the overall development time is relatively late. In the 1970s, some Chinese herbal medicine factories began to use mechanical equipment to extract active ingredients, but only as part of production, plant extracts have not been produced on a large scale. Until the 1990s, the international trend of returning to nature rose, and people began to tend to use natural plant products. During this period, China's foreign trade rose, and China's Plant Extract industry was getting better and better. In the 21st century, with the application of more advanced extraction methods such as enzymatic extraction, ultrasound, supercritical extraction, membrane separation technology and microwave extraction technology, the yield of extract has been greatly improved, and China's plant extract industry has entered a golden period of development. From 2010 to 2015, the production capacity and export volume of plant extracts increased steadily and rapidly every year, and the proportion of plant extracts in the export of traditional Chinese medicine also increased a lot. Since 2016, the market situation of plant extracts has changed.
Classification
1. According to the content of active ingredients, it can be divided into three categories: effective monomer extract, standard extract and ratio extract;
2. It is divided into glycosides, acids, polyphenols, polysaccharides, terpenes, flavonoids, alkaloids, etc;
3. According to the product form, it can be divided into vegetable oil, extract, powder, lens, etc.
4. According to the purpose, plant extracts can be divided into natural pigment products, traditional Chinese medicine extract products, extract products and concentrated products.
Application
The application scope of plant extracts has been very wide nowadays. In addition to traditional Chinese medicine products, with the gradual increase of people's trust and dependence on natural products, a large part of plant extracts have been used in health products and food ingredients. In addition, plant extracts have been used in cosmetics and feed in recent years.
Some of the best-selling plant extracts in the world have several classifications. For example, Rhodiola, ginkgo, ginseng extract, etc. are used in the fields of brain strengthening, intelligence, prevention and treatment of Alzheimer's disease; Green tea, Fructus aurantii Immaturus, apple and bitter melon polypeptide extract are applied to reduce weight, reduce blood sugar and prevent diabetes. Paclitaxel, tea polyphenols, theanine, bioflavonoids such as lycopene and Anthocyanin are used in the field of natural anti-cancer; Licorice, garlic, Astragalus membranaceus and soybean extracts are used in the field of human immune system.Ashwaganda Root Extract, ,Sophora Japonica Extract, Hypericum Perforatum Extract, Salvia Miltiorrhiza Extract
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