Application background and overview of picolidinium chromium
Chromium Picolinate (Cp), an organic trivalent chromium, is of great significance to the biological activity of Glucose Tolerence Factor (GTF), and acts as a GTF to synergize and increase the action of insulin, thus affecting glucose, It metabolizes lipids, proteins and nucleic acids, so it is widely used as a nutritional additive in food and livestock and poultry production.
In livestock and poultry production, supplementing picolinate chromium can promote the growth of pigs and improve the carcass quality of growing and finishing pigs, improve the immunity of poultry, and enhance the body’s anti-stress ability. Young gilts and boars were fed diets without picolinium chromium and diets supplemented with 0.05% picolinium chromium respectively. The average daily gain (ADG) of the gilts in the test group (P=0.27), Feed conversion efficiency (FCR) (P=0.08) and lean meat rate (P=0.20) were increased and improved to varying degrees; compared with the control group, the ADG and FCR of the fattening boars in the experimental group were significantly affected ( P=0.04) was inhibited, and the lean meat rate showed a decreasing trend (P=0.27). Therefore, gender is an important factor affecting the effectiveness of picolidine chromium use in growing and finishing pigs.
Applications of chromium picolinate [2]
The application of chromium picolinate is used as a feed additive:
There are many factors that affect the quality of pork, including genetics, nutrition, environment, slaughter, etc. Among them, nutrition plays an important role in regulating the quality of pork. However, it is difficult to find a solution suitable for large-scale application by selecting and proportioning nutrients to increase growth rate and lean meat rate, and comprehensively considering factors such as pork quality and feeding costs. Highly challenging. CN201210553562.X aims to provide a feed additive for improving pork quality.
The second object of the present invention is to provide functional feed composed of the feed additive. The third object of the present invention is to provide a preparation method of the functional feed. Another object of the present invention is to apply the functional feed to the raising of three-way cross fattening pigs. In order to achieve the above object, the present invention adopts the following technical solution: feed additives include betaine, vitamin E and picolidine chromium; the mass ratio between betaine, vitamin E and picolidine chromium is 1000:100~ 200:0.2. A functional feed includes base feed and feed additives, and the mass ratio between the base feed and feed additives is: 1000:1.4. The base feed includes 65.5% corn, 19% soybean meal, 4% rapeseed meal, 5% No. 4 flour, 4% bran, 1.6% calcium hydrogen phosphate, 0.5% stone powder, 0.4% Salt, 0.1% lysine, 0.25% complex trace elements, 0.02% multivitamins; the complex trace elements include per kilogram of feed: Fe 100 mg, Mn 60 mg, Cu 50 mg, Zn 100 mg , I 0.3 mg, Col mg, Se 0.3 mg; the multivitamins per kilogram of feed include: VA 5512IU, VD33351IU, VB1222.76 mg, VK32.2 mg, riboflavin 5.5 mg, pantothenic acid 13.8 mg, tobacco Acid 30.3 mg.
The feed additives include betaine, vitamin E and chromium picolinate; the mass ratio between betaine, vitamin E and chromium picolinate is 1250:100~200:0.2. A method for preparing functional feed, including the following steps:
(1) Preparation of matrix feed; crush raw materials such as corn, soybean meal, minerals and vitamins respectively, mix them evenly, and mechanically press to form particles; wherein, the particle size of the raw materials crushed should be above 40 mesh; Uniform mixing means that various raw materials need to be fully stirred when mixing, and their coefficient of variation shall not be greater than 7%; the particle diameter is 2 to 4 mm, and the length is 1.5 to 2 times the diameter;
(2) Additives are added; feed additives are mixed and prepared in advance, and then added to the base feed uniformly; or added to the base feed one by one in parts by mass. The functional feed is used in raising three-way hybrid growing and fattening pigs. Compared with the existing technology, the beneficial effects of the present invention are as follows: the present invention uses betaine, vitamin E and picolidinium chromium as additives. The betaine used functions as a methyl donor, which can effectively provide methyl groups to the body. It strengthens the synthesis of carnitine in the liver, enhances the transport of fatty acids, promotes β-oxidation of fatty acids in fat and muscle cell mitochondria, thereby reducing or redistributing body fat. Betaine can also promote fat catabolism and inhibit fat anabolism by reducing the activity of abdominal fat or subcutaneous lipogenic enzymes and increasing the activity of lipolytic enzymes.
The function of vitamin E is to effectively inhibit the formation of methemoglobin in fresh meat, enhance the stability of oxyhemoglobin, and extend the storage time of fresh meat. Adding vitamin E to rations can significantly reduce lipid peroxidation, extend the preservation time of meat color, and reduce drip loss. The function of picolinate chromium is to reduce the stress of animals during transportation and transfer sites, increase glycogen storage in muscles, thereby reducing the occurrence of PSE meat and DFD meat. Picolidine chromium can also increase lean meat rate and improve carcass quality. According to the present invention, betaine, vitamin E and picolidine chromium are added to the pellet feed in appropriate amounts, and the synergistic effect can significantly improve the quality of pork.
