What Are Natural Growth Promoters

For agricultural animals, natural growth enhancers are added to the feed. Natural growth promoters or non-antibiotic growth promoters are terms used to describe many subcategories of feed additives for agricultural animals. They are frequently viewed as advantageous substitutes for antibiotic growth promoters in the production of animals.A wide range of natural growth promoters for pigs, poultry, ruminants, and aquatic animals have been developed as a result of ongoing research into alternatives, primarily organic acids, probiotics, prebiotics, synbiotics, tannins, and feed enzymes.

Advantages of Natural Growth Promoters

The fundamental benefit of natural growth promoters is that, in general, they pose no threat of bacterial resistance or unwanted residues in animal products like meat, milk, or eggs. The addition of natural growth promoters to farm animal diets may have a number of positive effects, such as the rapid formation of a healthy gut microbiota, stabilization of digestion, enhanced feed efficiency, increased growth performance, and stimulation and rapid maturation of the immune system.


In order to stop microbial degradation of raw materials or completed feeds, especially in poor storage circumstances, acidifiers, such as organic acids or their salts, are utilized. Additionally, by creating low stomach pH conditions that assist endogenous digestion enzymes and decrease undesirable gut microbes, acidifiers may enhance development performance. Propionic acid, formic acid, lactic acid, and other acids are the foundation of several dietary acidifiers, either separately or in combination. Inorganic acids are also included in some acidifiers.


Live bacteria or viable spores are known as probiotics aid in the formation of healthy gut flora. Unwanted microbes like Salmonella or E. coli are fought off by probiotic bacteria in one of three ways: by blocking gut wall receptors, producing antimicrobial compounds, or influencing the immune system.


Synbiotics, which are probiotics and prebiotics administered together, are claimed to have synergistic effects on gut health and performance.


Tannins are polyphenolic chemicals made by plants that can range in concentration from 2% to more than 20% of dry weight. Tannins can boost a plant's resistance to diseases, protect tissues like wood from degradation, and protect plants from herbivores. Furthermore, due to the difficulties for bacteria to build resistance against the wide variety of molecules that comprise these plant components, are seen as a natural substitute for AGPs.

Feed Enzymes

The number of indigestible nutrients and undesirable substances like fiber, phytate, or proteins with antigenic effects in nonanimal meals vary. To enhance the utilization of energy and nutrients or to destroy a number of undesirable components, several feed enzymes can be added to feeds, such as sugars, phytases, or proteases. To boost the natural enzyme secretions, certain enzymes can also be provided to young animals' meals.

What Is Potassium Fertilizers

Potassium fertilizers are fertilizers with potassium as the main nutrient. In the process of plant growth and development, potassium is involved in the activation of more than 60 enzyme systems, photosynthesis, transport of assimilation products, carbohydrate metabolism, and protein synthesis.The size of the potassium fertilizer effect depends on its potassium oxide content. Potassium fertilizer can be dissolved in water, the fertilizer effect is fast, and it can be absorbed by the soil and is not easy to run off. When potassium fertilizer is applied in an appropriate amount, it can make the stalks of crops grow strong, prevent lodging, promote flowering and fruiting, and enhance the ability to resist drought, cold, pests, and diseases.

Main Types of Potassium Fertilizers

According to the chemical composition of potassium fertilizers, they can be divided into chloride-containing potash fertilizers and chloride-free potash fertilizers. Potassium fertilizers are water soluble but also contain certain other insoluble components. The main varieties of potash fertilizers are potassium chloride, potassium sulfate, potassium dihydrogen phosphate, potassium rock salt, potassium magnesium salt, carnallite, potassium nitrate, and kiln ash potassium fertilizer.

Influencing Factors

The application of potassium fertilizer is not only determined by the potassium supply capacity of the soil but also affected by factors such as crop species, agricultural production level, climate, and soil conditions. The content and form of potassium in the soil and its transformation and potassium supply capacity are an important basis for the rational distribution and application of potassium fertilizer.

Potassium in soil includes 3 forms:

①The mineral potassium. It mainly exists in the coarse-grained part of the soil, accounting for about 90% of the total potassium, which is extremely difficult for plants to absorb.

② Slow-acting potassium. It accounts for about 2% to 8% of the total potassium, and it is the source of quick-release potassium in the soil.

③ Quick-acting potassium. Refers to the substitutional potassium adsorbed on the soil colloid surface and the potassium ions in the soil solution. Plants mainly absorb potassium ions in soil solutions.

Basic Knowledge of Metallocene Catalysts

Metal catalysts called metallocenes are particularly efficient. They are made up of two five-atom-per-ring cyclopentadienyl anions and tiny positively charged metal ion particles sandwiched between them. Because each catalyst particle contains exactly one identical active site, they are often referred to as single-site catalysts. In the 1950s, metallocene catalysts were found.

Contrary to conventional polymerization methods, the metallocene-catalyzed method produces resins that are exceptionally pure, consistent, and have clearly defined characteristics. A large variety of metallocene polyethylenes, for instance, can be created with a wide range of very varied qualities, from being very soft and having a low melting point to having a high melting point and good heat resistance. Several early metallocene compounds are effective olefin polymerization catalysts.

Metallocenes are homogenous, in contrast to conventional and still commonly used heterogeneous catalysts. The coordination of the monomer to the transition metal site before insertion at one end of the polymer chain is what the metallocene catalysts and other coordination catalysts do. Since the arriving monomer must coordinate with the active site before propagation can take place, the coordination step is responsible for the versatility of these catalysts. The electronic and steric environment around the arriving monomer will control the polymerization and, as a result, the polymer microstructure, the propagation and chain transfer rates, the co-monomer reactivity ratios, and the stereo and regio-selectivity.

There aren't many known metallocene anions. The most well-known instance is ferrocenium, a blue iron complex created by oxidizing orange iron-II-ferrocene.

What You Should Know About Flavoring Agents?

Flavoring agents, which come in hundreds of kinds and include natural flavorings like fruit, nuts, seafood, spice mixes, vegetables, and wine, are essential food additions. In addition to natural flavors, chemical flavors also mimic natural flavors.

Flavorings are used as food additives to improve and change the flavor and aroma of naturally occurring food products, which may have been lost during food preparation. Additionally, tastes are employed to add flavor to meals like candies and snacks that do not naturally have appetizing flavors. Natural flavoring, artificial flavorings, and flavorings that are similar to natural flavorings are the three categories into which flavors are typically divided.

Natural Flavoring Additives

Natural flavoring additives are derived from plants, animals, herbs, spices, microbial fermentation, or plants. Herbs, spices, sweetness, essential oils, and oleoresins produced via solvent extraction with the solvent removed are all examples of natural flavorings. Natural flavorings cannot contain any artificial or nature-identical flavoring agents and may be utilized in either their natural or processed form for human consumption.

Artificial Flavoring Additives

Natural flavoring additives and artificial flavoring additives are chemically identical, but artificial flavorings are more widely accessible and less expensive. The fact that they might not be a perfect replica of the natural flavorings they are emulating, such as ethyl butyrate for pineapple or amyl acetate for bananas, is a negative. Artificial flavoring additives have the same chemical composition as their natural equivalents.

In addition to this, there are natural flavor enhancers that bring out the flavors of meals, such as monosodium glutamate. They have an unclassifiable flavor that cannot be categorized as sweet, sour, salty, or bitter. In fact, the flavor of MSG is referred to as umami and is the fifth taste, which is also present in foods heavy in protein, such as meat. Originally made from seaweed, monosodium glutamate is now commercially produced through the fermentation of starch, molasses, or sugar.