Common sense of growth-promoting feed additives

Feed additives are substances added in small quantities during the production, processing, and use of animal feed. Although their usage is minimal, their impact is significant. These additives have become essential components in modern feed manufacturing, playing a crucial role in enhancing the nutritional value of basic feeds, improving animal performance, maintaining health, reducing feed costs, and improving the quality of animal products. With the rapid growth of the aquaculture industry, the development and production of growth-promoting additives have also advanced significantly, offering a wider range of options and more diverse sources. Currently, the market offers a variety of growth-enhancing additives, including enzyme preparations, functional peptides, acidifiers, antioxidants, and even some products developed through nanotechnology. Each of these has its own unique benefits and contributes to the growth of livestock and poultry in different ways. However, every type of animal has distinct growth characteristics, and each stage of development comes with specific physiological and nutritional needs. Therefore, the key to effective additive use lies in understanding the particular growth stage of the animal and meeting its specific requirements. For instance, certain additives, like the now-banned lean meat essence, were most effective during the muscle-building phase of fattening pigs, as they could rapidly boost protein synthesis while reducing fat accumulation. This highlights the potential for improved growth outcomes if additives are used appropriately at the right time. Many enzyme preparations are traditionally added during the early developmental stages of animals to compensate for insufficient digestive enzyme secretion. However, research has shown that adding these enzymes during the fast-growth period can also yield excellent results. This may be due to the fact that diets in the late fattening phase are often rich in nutrients such as proteins and fats, which exceed the natural digestive capacity of the animals. As a result, nutrient absorption and metabolism are limited, preventing animals from reaching their full growth potential. By introducing proteases, lipases, or amylases at this stage, digestion can be enhanced, leading to better growth performance. Therefore, feed additives should not only be used in the early stages but also strategically introduced during the late growth and fattening phases to meet the high nutritional demands of animals and optimize their growth. Moreover, while individual additives offer some nutritional benefits, no single one can fully meet the complex needs of livestock and poultry. Both theoretical studies and practical applications show that combining different additives can create synergistic effects, often achieving a result greater than the sum of their parts. For example, xylanase breaks down xylan in the gut, reducing chyme viscosity and allowing proteases and lipases to work more effectively. Functional peptides, when absorbed, can activate immune responses and enhance antioxidant capacity, supporting overall gut health and nutrient absorption. Animals are dynamic systems where all components interact. A new generation of compound feed additives can achieve growth-promoting effects similar to those of "clenbuterol" when used at the right time, helping animals reach their full potential in a safe and effective manner.

High Temperature And High Pressure Special Valves

Special valve refers to can be applied to a variety of special environment and adapt to a variety of complex conditions of the valve, is a very widely used in the national economic construction and development of a general mechanical products, in energy, chemical, medicine, agriculture, food, military and other industries are playing an extremely important role. With the in-depth promotion of industry 4.0, special valves have also entered a new stage of development, and the technology and market of special valves have also undergone new changes.
Compared with ordinary types of valves, special valves have obvious characteristics such as extremely complex internal flow, special structure, special materials and special uses. As a special valve in many valve types, it is applied to various special environments, can adapt to various complex working conditions, plays a special role and undertakes a particularly complex task. Therefore, special valves are often referred to as the "throat" of industrial pipes. More typical special valves are the main feed water regulator, pressure regulator spray valve, high pressure trap, Tesla valve, pilot Globe Valve, multistage pressure reducing valve, sleeve control valve, heart flap valve and so on. It is self-evident that the technical complexity of special valves is much higher than that of ordinary valves, which belong to high-end valve series both technically and in the market.

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