Choline Chloride

Choline chloride is an organic substance with a chemical formula of C5H14ClNO, white hygroscopic crystals, tasteless, and fishy odor. Melting point 305 ℃. 10% aqueous solution pH5-6, unstable in lye. This product is easily soluble in water and ethanol, but insoluble in ether, petroleum ether, benzene and carbon disulfide. Low toxicity, LD50 (rat, oral) 3400 mg/kg. For the treatment of fatty liver and cirrhosis. It can also be used as a feed additive for livestock, which can stimulate the ovaries to produce more eggs, give birth and gain weight in livestock and fish.

Application
● Tissue culture medium, feed additive, clinically used as anti-fatty liver agent.

● Choline chloride is a vitamin B drug, used for hepatitis, liver function degradation, early liver cirrhosis, pernicious anemia and other diseases.

● Choline chloride is an efficient nutritional supplement and fat-removing agent, which can effectively prevent and treat fat deposition and tissue degeneration in the organs of livestock and poultry. Can promote the absorption and synthesis of amino acids. It can enhance the physique and disease resistance of livestock and poultry, promote growth and development, and improve the egg production rate of poultry.

● As a feed additive, choline chloride has the following physiological effects: it can prevent the accumulation of fat in the liver and kidney and its tissue degeneration; it can promote the recombination of amino acids; it can improve the utilization rate of amino acids, especially the essential amino acid methionine in the body. In Japan, 98% of choline chloride is used as animal feed additives such as chickens, pigs, beef cattle, fish and shrimp. Most of them are processed into powders. The preparation method of 50% powders is to add excipients with appropriate particle size in the mixer in advance, and then dropwise add aqueous choline chloride solution, mix and dry. Some commercial powders also contain vitamins, minerals, drugs, etc. In the process of use, in addition to preventing its moisture absorption and deliquescence, it should also be noted that all feeds have been added with choline chloride as the last process. Because it has a destructive effect on other vitamins, especially in the presence of metal elements, the damage to vitamins A, D, and K is faster, so choline should not be added to multi-dimensional preparations, and the compound feed after daily use should be used as soon as possible.

● Choline chloride is also a plant photosynthesis promoter, which has obvious effect on increasing yield. In wheat and rice, spraying at the booting stage can promote the differentiation of spikelets and produce more panicle grains. Spraying at the grain-filling stage can speed up the grain-filling speed, the grains in the ear are full, and the thousand-grain weight increases by 2 to 5 grams. It can also be used for corn, sugarcane, sweet potato, potato, radish, onion, cotton, tobacco, vegetables, grapes, mango, etc. to increase the yield, and the effect is stable under different climate and ecological environment conditions; the roots and other underground crops grow in the initial stage of expansion per mu. Use 10 to 20 ml of 60% water solution (6 to 12 grams of active ingredients), add 30 liters of water to dilute (1500 to 3000 times), spray 2-3 times, and the effect of swelling and increasing production is obvious; ornamental plants Rhododendron, poinsettia, geranium , Hibiscus, etc. to regulate growth; wheat, barley, oats are resistant to lodging.

Storage method
● The storage temperature of choline chloride solution should not be lower than -12℃ to avoid blocking the pipeline after crystallization.

● When choline chloride powder is stored in silos, dehumidification equipment should be used to prevent the product from absorbing moisture. Choline chloride powder absorbs moisture and can cause the product to become wet and clumpy, leading to catheter blockage. Plant carrier-type choline chloride powder may be fermented after long-term moisture absorption.

Choline, on its own, functions as a neurotransmitter, which means that it helps support healthy nervous system function for your dog. Choline, also known as vitamin B4, exists in a pill version that is used to help support detoxification within the liver, and it serves as a precursor to chemicals used by the nervous system for a variety of functions, like dopamine and acetylcholine. It is sometimes used to provide additional support to animals with epilepsy and other seizure disorders, as well as cognitive dysfunction or decline.

As choline chloride, it not only serves as a neurotransmitter, but it also supports growth. In fact, it's often added to pet food to enhance growth and development. It helps support liver function and healthy metabolism. It's commonly used in chicken feed, but it is used in multiple types of pet feeds, including dog food. While the manufactured form may be added to dog food, choline chloride also naturally occurs in a variety of foods, like soybeans, liver, eggs, and fish.

Although it may sound like a scary chemical, choline chloride can be extremely beneficial to your dog in their food. This chemical compound supports healthy hepatic and nervous system function, as well as growth and development. It serves as a building block for other chemicals that are used by the nervous system. It's a functional neurotransmitter that has shown some promise in supporting dogs with neurological dysfunction, like epilepsy and cognitive decline.
If you're unsure if this ingredient is a good option for your dog, talking to your vet or a board-certified veterinary nutritionist is your best starting point. They will be able to give you a more in-depth explanation of the importance and function of this chemical, and they can hopefully help ease your concerns associated with it.

There are mainly two types of Choline Chloride: Synthetic and natural.

Synthetic Choline Chloride: It is made by chemically synthesizing choline with hydrochloric acid. Synthetic Choline Chloride is commonly used in animal feed due to its lower cost and greater availability. However, some studies have suggested that synthetic Choline Chloride may be less bioavailable than natural choline.

Natural Choline Chloride: It is derived from natural sources such as soybean or other plant materials. Natural Choline Chloride is typically more expensive than synthetic Choline Chloride but is considered to be more bioavailable and may have greater health benefits.

Both types of Choline Chloride are available in various forms, including liquid, powder, and granular forms. The choice of form depends on the specific application, as each form has different properties and may be more suitable for certain uses. For example, liquid Choline Chloride may be more suitable for use in liquid animal feed, while powdered or granular forms may be more suitable for use in solid animal feed or human supplements.

In general, Choline Chloride is an important nutrient that is essential for optimal health and well-being. However, it is important to choose the appropriate type and form of Choline Chloride based on the specific application to ensure maximum bioavailability and effectiveness.

Choline chloride is a so-called "Generally Recognised as Safe" product. In the European Union, choline chloride is mentioned as a permitted ingredient in babyfood, according to the Directive 91/321/EEG. Annison (1996) has recently summarised the nutritional roles of methionine, choline and betaine, and their inter-relationships. He clearly demonstrated that choline has essential metabolic functions for which neither betaine nor methionine can substitute.

These essential functions are
As a constituent of phospholipids, i.e. it is essential in the building and maintenance of cell structure, as well as ensuring normal maturation of the cartilage matrix of bone, including the prevention of perosis in broilers;
In fat metabolism in the liver, i.e. utilisation and outward transport of fat, so preventing abnormal accumulation of fat within hepatocytes - so-called "fatty liver";
As a precursor for acetyl choline synthesis, the transmission agent for impulses along the sympathetic nervous system.
Choline has a further non-essential metabolic role, as a source of labile methyl groups. It is only in this role that betaine can substitute for choline. Both essential and non-essential requirements can readily be met by dietary supplementation with choline chloride.

Choline Chloride - Dietary Requirements of Broilers
Choline chloride is a common supplement to poultry feed. However, published dietary requirements are based on studies several decades old and there has been significant change both in feed formulation and bird performance since these requirements were established. Hence, recent studies have sought to re-establish the requirements for choline chloride supplementation of broiler diets.

Choline Chloride - Dietary Requirements of Layers
Layers, like broilers, have an essential requirement for choline. A major use is in the formation of the phospholipid lecithin, a component of egg yolk. Current NRC recommendations for choline allowances in laying hens are 105 mg/day for white egg layers and 115 mg/day for those laying brown eggs. At feed intake levels of 100 and 110 g/day for the two types respectively, this implies a choline dietary concentration of approximately 1100 mg/kg.

A number of factors may influence a hen's requirement for choline, for instance age, feed intake and dietary crude protein or methionine levels. It is generally accepted that dietary requirement declines with age, possibly associated with an increasing feed intake. Methionine is the first limiting amino acid for egg production and, given the common function with choline in methyl group donation, interactions between the two nutrients may be anticipated.

At a feed intake of 100 g/day, a recommendation of 118 mg choline/day equates to a dietary requirement of 1180 mg/kg, similar to that advocated by NRC (1994). As these levels may be only slightly higher than those supplied by the raw materials in a typical commercial diet, there has been debate about the need for dietary supplementation with choline chloride. Supplementation may therefore be viewed as a precaution against variable availability of choline from natural sources. Commercial recommendations for the choline content of layers feed are in the range 1200-1400 mg/kg (e.g. Leeson and Summers, 1991). Assuming a background level of approximately 1000 mg/kg, this suggests the dietary supplementation with choline chloride should be in the range 250-500 mg/kg.

Choline - Natural Content of Feedstuffs
Effect of Supplementation of Broiler Diets with Betaine and/or Choline There have been several statements published recently discussing the use of betaine as a replacement for choline chloride. Whilst acknowledging that betaine can replace choline for only one of its biological functions, the broad conclusion from these articles is that betaine can remove the need for supplementary choline chloride if the basal diet contains adequate natural choline. However, as stated above, the availability of natural choline is uncertain. Therefore, to be sure the essential requirement for choline is met, choline chloride should be added to the feed, irrespective of the possible attraction of using betaine for other reasons. This reason can't be the difference in hygroscopicity, mentioned in some articles, because this is more or less the same for both products.

The effect of supplementary betaine in chicks fed with graded levels of choline chloride has recently been studied by Emmert and Baker (1997). In these studies a choline free basal diet was used. Adding choline chloride had an almost linear effect on growth and feed conversion. The addition of betaine at a concentration of 500 mg/kg feed (equivalent to 591 mg CC/kg) to the basal diet and to diets containing approximately 570 mg choline chloride/kg feed had no effect at all on bird performance (Figure 2-4). This neatly illustrates that the essential requirement for choline must be met before responses to betaine can be expected.

The bioavailability of naturally occurring choline varies widely between raw materials which, with variation in absolute levels, means the contribution to dietary concentration may be severely overestimated
choline is essential for certain metabolic processes and cannot be replaced by betaine for these functions
adequate choline supplementation will overcome the variation in raw material concentration, and the uncertainty of bioavailability, supplying both the essential and non-essential needs of the bird
- The following supplementary levels of choline chloride (as 100 %) are recommended:
- Broilers - 500-800 ppm
-Layers - 250-500 ppm.