Special C32 sustained-release capsule for determining grazing intake and preparation method thereof

Abstract

The invention discloses a special C32 sustained-release capsule for determining the grazing intake and a preparation method thereof. The capsule content is high-purity C32 and microcrystalline cellulose, wherein the high-purity C32 and the microcrystalline cellulose are dissolved by using heptanes; C32 is uniformly dispersed and coated with microcrystalline cellulose particles; and a solvent is completely evaporated to dryness through heating at 65-70 DEG C to form a cellulose crystal containing the C32. Each finished product capsule contains 120mg of cellulose crystal which contains 60mg of C32 and 60mg of microcrystalline cellulose. The problems that the imported C32 capsule is out of stock and high in price and purchase is restricted in the process of determining the grazing intake are solved; the sustained-release capsule is simple in preparation method, low in cost and appropriate in quantity for use and can be immediately prepared in use, waste caused by blind stockpile is avoided, and the test cost is greatly reduced. Meanwhile, the imported capsule is prevented from being passively and blindly purchased, and the initiative of test control is improved.

Description

technical field [0001] The invention relates to the field of animal husbandry grazing management technical equipment, in particular to a C32 slow-release capsule specially used for measuring grazing feed intake and a preparation method thereof. Background technique [0002] Feed intake is an important factor in determining the nutritional status and performance of livestock. In pasture animal husbandry production systems, in order to improve the nutritional status and production capacity of livestock, it is necessary to know how much and what they eat during grazing, that is, feed intake and feed composition. However, for grazing livestock, it is very difficult to accurately measure these two indicators, because foraging activities change with the change of pasture type, pasture height and density, livestock body condition and other conditions. At present, the methods for measuring grazing feed intake include simulation method, subtraction method, three-combination method, ...

AI Technical Summary

Problems solved by technology

However, the currently used commercial C32 sustained-release capsules are only sold exclusively by Captec in New Zealand. The purchase procedures are cumbersome, the order cycle is long, and the price is expensive, which brings great inconvenience to producers and researchers.

We also tried to make C32 capsules in the previous test, but either the release rate was too fast, or the concentration did not meet the test requirements, and there is currently no effective and feasible C32 capsule preparation technology announced in China

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