Total mixed ration for dairy cattle at early stage of perinatal period and preparation method thereof

Abstract

The invention provides a total mixed ration for dairy cattle at the early stage of the perinatal period and a preparation method thereof. Per 30kg of the total mixed ration contains 7kg of concentrate supplement, 15kg of whole crop silage, 5kg of alfalfa and 3kg of Chinese wildrye; during preparation of the total mixed ration, all the constituents of a premix are ground and then mixed, then the premix and other constituents are ground and then adequately and uniformly mixed in a mixer to prepare the concentrate supplement, then the concentrate supplement is mixed with whole crop silage, alfalfa and Chinese wildrye again to prepare the total mixed ration.

Description

technical field [0001] The invention relates to the technical field of animal feed, in particular to a fully mixed diet for dairy cows in the peripartum period and a preparation method thereof. Background technique [0002] In recent years, the output of dairy cows in my country has been increasing year by year. A large number of dairy farms have entered the ranks of dairy cows with a yield of more than 10 tons per unit, and some excellent dairy farms have exceeded the yield of 12 tons per cow. This has caused a series of problems, such as: dairy cows The service life of dairy cows has been greatly shortened, and the culling rate of dairy cows has been greatly increased. In some high-yielding dairy farms, the annual culling rate of lactating cows has reached 40% or even exceeded. This factor seriously restricts the development of my country's dairy industry. The service life of dairy cows is directly related to the feed nutrition and feeding management during the perinatal p...

AI Technical Summary

Problems solved by technology

[0007] 1. The so-called uniformity means that a sample is taken at random, and its component content is the same as that of other samples. The uniformity of mixing directly affects the quality of feed products. Due to uneven mixing, the raised animals will ingest The nutritional components of the animal are different. Some components cannot meet the nutritional needs of animals, while some components greatly exceed the animal's ability to bear. The mild ones affect the physiology and growth of animals, and the severe ones cause physiological disorders in animals, leading to poisoning, and even death; on the other hand, the nutritional effect in the feed cannot be fully utilized, indirectly wasting feed resources

[0008] 2. Factors affecting the uniformity of mixing

[0016] (7) Conveyance distance and method: The production of premix is ​​different from that of compound feed. Long-distance conveyance will cause pollution between drugs and grading of finished products, which will affect the uniformity of finished products.

[0023] 5. Stabilization treatment: In the composition of the premix, some mineral salts of trace elements have poor water solubility and are easy to handle in technology, while some are very easy to absorb moisture, regain moisture and agglomerate, which affects processing and feed product quality

Most vitamins are easily affected by factors such as oxygen, humidity, heat, light, and metal ions to reduce their activity.

[0024] 6. Storage time and conditions: Premixes, especially premixes with poor stability such as multivitamins, are often due to the length of storage time and poor conditions such as water content, temperature, humidity, light, and pH during storage. affect its quality and cause the active ingredient to fail

Among the commercially available raw materials, their effective content is also different due to their origin, batch, delivery time, and sales time; therefore, only the raw materials and their proportions are disclosed in the existing patent documents, without considering The proportion of its active ingredients is unscientific, and it is impossible to guarantee the consistency of industrial production

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