Multi-nutrient balanced lick brick for grazing down producing goats as well as preparation method and application of multi-nutrient balanced lick brick

Abstract

The invention provides a multi-nutrient balanced lick brick for grazing down producing goats as well as a preparation method and application thereof, and belongs to the technical field of animal feed development. The multi-nutrient balanced lick brick is prepared from the following raw materials in parts by weight: 20 to 100 parts of copper sulfate pentahydrate, 35 to 165 parts of zinc sulfate monohydrate, 0.1 to 1 part of sodium selenite, 54.5 to 270 parts of anhydrous ferrous sulfate, 10 to 40 parts of manganese sulfate monohydrate, 15 to 65 parts of 1 percent cobalt chloride, 0.2 to 2 parts of potassium iodide, 40 to 200 parts of DL-alpha-tocopheryl acetate, 0.2 to 2 parts of vitamin A acetate, 40 to 200 parts of calcium carbonate and 20 to 100 parts of adhesive. And 8855-9765 parts of sodium chloride. The proportion of various nutritional ingredients is reasonably adjusted, the requirements of the grazing cashmere goats for microelements and vitamins can be comprehensively met, then the cashmere density is increased, and the cashmere yield is increased. Meanwhile, the fineness of cashmere can be reduced, and the quality of cashmere is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of animal feed development, and in particular relates to a multi-nutritional balanced lick brick for grazing cashmere goats, and a preparation method and application thereof. Background Art

[0002] With the continuous development of animal husbandry, cashmere goat breeding occupies an important position in my country. Cashmere goats are famous for their high-quality cashmere, and the output and quality of cashmere are directly related to the economic benefits of farmers and the development of related industries. At present, grazing is a common breeding method in the breeding process of cashmere goats. However, under grazing conditions, the nutritional intake of cashmere goats often has the problem of imbalance. Since the nutrients in natural grasslands are limited and fluctuate greatly with seasonal changes, it is difficult for cashmere goats to obtain comprehensive nutrients from grazing. This not only affects the growth and health of cashmere goats, but also has an adverse effect on the output and quality of cashmere.

[0003] In order to improve the nutritional status of cashmere goats, farmers often use supplementary feed methods, including the form of nutritional lick bricks. Nutritional lick bricks are nutrients required by cattle, sheep and other animals, which are made into blocks for animals to lick after scientific formulation and processing technology. Licking bricks are a simple and effective way to supplement cattle and sheep with mineral elements and other nutrients that are easily lacking. At present, in the process of grazing, semi-grazing and semi-stalled, or even stalled cashmere goat breeding, the application of lick bricks is relatively common, but the types of nutrients are incomplete or the content is insufficient, and it is unbalanced, which cannot meet the needs of cashmere goats for mineral elements and vitamins for long wool.

[0004] Studies have shown that many mineral elements and vitamins help catalyze the synthesis of a series of amino acids to promote hair follicle growth, including enzymes and proteins that play a role in the formation of cell membrane structures, especially epidermal keratinocytes of the hair shaft and fibroblasts in the dermis. In addition, vitamin A is necessary for healthy skin and hair growth, and its metabolite retinoic acid has the function of regulating hair follicle stem cells and affecting the hair cycle; vitamin E has a strong antioxidant function, which promotes the growth and development of hair follicles by neutralizing free radicals and reducing cell damage.

[0005] The agricultural industry standard "Nutritional Requirements of Cashmere Goats" recommends the mineral elements and vitamin requirements of cashmere goats. Therefore, a multi-nutrient balanced lick brick specifically for grazing cashmere goats and its preparation method can be developed based on "Nutritional Requirements of Cashmere Goats", which is of vital practical significance for improving the benefits of cashmere goat breeding and promoting the healthy development of the cashmere industry. Summary of the invention

[0006] In view of this, the purpose of the present invention is to provide a multi-nutritional balanced lick brick for grazing cashmere goats and its preparation method and application, which can promote the development of secondary hair follicles in the skin, increase the number of active secondary hair follicles in the skin, and thus improve the density of cashmere, and increase the yield and quality of cashmere.

[0007] In order to achieve the above-mentioned object of the invention, the present invention provides the following technical solutions:

[0008] A multi-nutritional balanced lick brick for grazing cashmere goats comprises the following raw materials by weight: 20-100 parts of copper sulfate pentahydrate, 35-165 parts of zinc sulfate monohydrate, 0.1-1 part of sodium selenite, 54.5-270 parts of anhydrous ferrous sulfate, 10-40 parts of manganese sulfate monohydrate, 15-65 parts of 1% cobalt chloride, 0.2-2 parts of potassium iodide, 40-200 parts of DL-α-tocopherol acetate, 0.2-2 parts of vitamin A acetate, 40-200 parts of calcium carbonate, 20-100 parts of adhesive and 8855-9765 parts of sodium chloride.

[0009] Preferably, the binder is molasses.

[0010] The present invention also provides a preparation method of the multi-nutritional balanced lick brick for grazing cashmere goats, comprising the following steps: weighing the raw materials, crushing calcium carbonate and sodium chloride, mixing them evenly, adding copper sulfate pentahydrate, zinc sulfate monohydrate, sodium selenite, anhydrous ferrous sulfate, manganese sulfate monohydrate, 1% cobalt chloride, potassium iodide, DL-α-tocopherol acetate, vitamin A acetate and a binder in sequence, adding water to mix, and then pouring into a mold to make bricks.

[0011] Preferably, the calcium carbonate and sodium chloride are crushed to a particle size of ≤180 μm.

[0012] Preferably, the amount of water added is 10%-15% of the total weight of the raw materials.

[0013] Preferably, the bricks are dried after making until the moisture content of the bricks is 5%-8%.

[0014] The present invention also provides the use of a multi-nutrient balanced licking brick for grazing cashmere goats in improving the cashmere production performance of the cashmere goats.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The multi-nutritional balanced lick brick for grazing cashmere goats of the present invention can fully meet the needs of cashmere goats for nutrients such as trace elements and vitamins by reasonably allocating the proportions of various nutrients, and provide sufficient nutritional support for the growth, development and production of cashmere goats. Mineral elements such as copper, zinc, selenium, iron, manganese, and vitamins such as vitamin E (DL-α-tocopherol acetate) and vitamin A added in the lick brick help maintain the normal physiological functions of cashmere goats, improve their immunity and anti-stress ability, reduce the occurrence of diseases, and thus improve the health level of cashmere goats. In addition, the lick brick of the present invention can promote the development of secondary hair follicles in the skin, increase the number of active secondary hair follicles in the skin, and then increase the density of cashmere and increase the output of cashmere. At the same time, it can also reduce the fineness of cashmere, improve the quality of cashmere, and bring higher economic benefits to farmers. The present invention also provides a preparation method of a multi-nutritional balanced lick brick, which is simple and easy to implement and convenient for large-scale production and application. DETAILED DESCRIPTION

[0017] The present invention provides a multi-nutritional balanced lick brick for grazing cashmere goats, which comprises the following raw materials in parts by weight:

[0018] 20-100 parts of copper sulfate pentahydrate, preferably 35-45 parts or 45-70 parts or 70-100 parts. Copper has a nutritional effect on the skin and hair follicles, and promotes the metabolism and utilization of nutrients by participating in the activity regulation of enzymes in the body. When it is 35-45 parts, and more preferably 40 parts, it helps to maintain the hematopoietic function and bone development of cashmere goats, and has a certain effect on increasing cashmere production and improving cashmere fineness; when it is 45-70 parts, and more preferably 60 parts, it can better promote the hair growth of cashmere goats, making cashmere more supple and shiny, and has a certain help in increasing cashmere density; when it is 70-100 parts, and more preferably 85 parts, a higher content of copper sulfate pentahydrate will further enhance the anti-stress ability of cashmere goats, and has a potential positive effect on maintaining the overall health and production performance of cashmere goats.

[0019] 35-165 parts of zinc sulfate monohydrate, preferably 35-80 parts or 80-120 parts or 120-165 parts. Zinc is involved in the synthesis of proteins and nucleic acids in the body, affecting the fineness and yield of cashmere. When it is 35-80 parts, more preferably 65 parts, it can meet the basic needs of cashmere goats for zinc, promote their growth and development, improve immunity, and play an important role in maintaining the normal growth and quality of cashmere; when it is 80-120 parts, more preferably 100 parts, it has a certain effect on improving the appetite and nutrient absorption of cashmere goats, improving production performance, and then indirectly affecting cashmere production; when it is 120-165 parts, more preferably 135 parts, a high content of zinc sulfate monohydrate will further enhance the antioxidant capacity of cashmere goats, and use within a reasonable range will help improve the quality and yield of cashmere.

[0020] 0.1-1 part of sodium selenite, preferably 0.1-0.4 part or 0.4-0.7 part or 0.7-1 part. Selenium can reduce the damage of oxidative stress to hair follicles and promote the growth of cashmere. When it is 0.1-0.4 part, more preferably 0.3 part, it helps the antioxidant function of cashmere goats, maintains normal cell metabolism, improves immunity, and has a certain positive effect on the quality and yield of cashmere; when it is 0.4-0.7 part, more preferably 0.5 part, it has a certain effect on maintaining the normal function of the heart and liver of cashmere goats and improves the production performance of cashmere; when it is 0.7-1 part, more preferably 0.8 part, it can further enhance the anti-stress ability of cashmere goats.

[0021] Anhydrous ferrous sulfate 54.5-270 parts, preferably 54.5-90 parts or 90-150 parts or 150-270 parts. Iron has a certain effect on the growth and color of cashmere, and it provides sufficient nutrition for hair follicles by promoting oxygen transport and metabolism. When it is 54.5-90 parts, more preferably 80 parts, it provides the basic needs of iron for cashmere goats, ensures their normal hematopoietic function, and prevents anemia; when it is 90-150 parts, more preferably 110 parts, it can better promote oxygen transport and metabolism of cashmere goats, improve their growth rate and production performance, and have a positive effect on the output and fineness of cashmere; when it is 150-270 parts, more preferably 200 parts, a high content of anhydrous ferrous sulfate will further enhance the anti-fatigue ability of cashmere goats.

[0022] 10-40 parts of manganese sulfate monohydrate, preferably 10-20 parts or 20-30 parts or 30-40 parts. Manganese is involved in bone development, reproductive system function and metabolic process, and promotes the utilization of nutrients by affecting the activity of enzymes in the body. When it is 10-20 parts, more preferably 15 parts, it meets the basic needs of cashmere goats for manganese, and has a certain effect on the growth and strength of cashmere; when it is 20-30 parts, more preferably 25 parts, it can better promote the bone growth and joint health of cashmere goats, improve their athletic ability, and thus improve the density and quality of cashmere; when it is 30-40 parts, more preferably 35 parts, it can further enhance the antioxidant capacity of cashmere goats.

[0023] 1% cobalt chloride (feed grade) 15-65 parts, preferably 15-30 parts or 30-50 parts or 50-65 parts. The cobalt element participates in the synthesis of vitamin B12 in cashmere goats, and plays a certain role in maintaining their hematopoietic function and nervous system health. When it is 15-30 parts, and more preferably 25 parts, it can improve the yield and fineness of cashmere by promoting the absorption and metabolism of nutrients; when it is 30-50 parts, and more preferably 40 parts, it can better promote the growth and immunity of cashmere goats, improve their ability to adapt to the environment, and have a potential positive effect on the density and quality of cashmere. When it is 50-65 parts, and more preferably 60 parts, it will further enhance the anti-stress ability of cashmere goats.

[0024] Potassium iodide 0.2-2 parts, preferably 0.2-0.8 parts or 0.8-1.4 parts or 1.4-2 parts. Iodine can maintain the normal function of the thyroid gland of cashmere goats and promote their growth, development and metabolism. When it is 0.2-0.8 parts, and more preferably 0.5 parts, it meets the basic nutritional needs of cashmere goats, and affects the growth and development of hair follicles by regulating the hormone level in the body; when it is 0.8-1.4 parts, and more preferably 1 part, it can better prevent iodine deficiency diseases such as goiter in cashmere goats, improve their production performance, and have a positive effect on the yield and fineness of cashmere; when it is 1.4-2 parts, and more preferably 1.8 parts, it will further enhance the anti-stress ability of cashmere goats, and help improve the health level of cashmere goats and cashmere production performance.

[0025] 40-200 parts of DL-α-tocopherol acetate, preferably 40-100 parts or 100-150 parts or 150-200 parts. DL-α-tocopherol acetate has a strong antioxidant function, which promotes the growth and development of hair follicles by neutralizing free radicals to reduce cell damage. When it is 40-100 parts, and more preferably 80 parts, it can provide antioxidant protection for cashmere goats, maintain the normal function of cells, improve immunity, and promote the growth of cashmere by reducing the damage of oxidative stress to hair follicles; when it is 100-150 parts, and more preferably 125 parts, it can better promote the growth and development and production performance of cashmere goats and improve the quality of their cashmere; when it is 150-200 parts, and more preferably 180 parts, it can further enhance the antioxidant capacity of cashmere goats and promote the growth and development of hair follicles, but attention should be paid to the cost and the side effects of excessive production.

[0026] 0.2-2 parts of vitamin A acetate, preferably 0.2-0.8 parts or 0.8-1.4 parts or 1.4-2 parts. Vitamin A acetate is necessary for healthy skin and hair growth, and its metabolite retinoic acid has the function of regulating hair follicle stem cells and affecting the hair cycle. When it is 0.2-0.8 parts, and more preferably 0.5 parts, an appropriate amount of vitamin A can maintain the vision, skin and hair health of cashmere goats and promote their growth and development; when it is 0.8-1.4 parts, and more preferably 1 part, it can better prevent vitamin A deficiency such as night blindness in cashmere goats, improve their immunity, and improve the density and quality of cashmere; when it is 1.4-2 parts, and more preferably 1.8 parts, it can further enhance the antioxidant capacity of cashmere goats, regulate hair follicle stem cells and affect the hair cycle, but attention should be paid to the cost and side effects of excessive production.

[0027] 40-200 parts of calcium carbonate, preferably 40-100 parts or 100-150 parts or 150-200 parts. Calcium provides sufficient nutrition for hair follicles by affecting calcium and phosphorus metabolism in cashmere goats. When it is 40-100 parts, and more preferably 80 parts, it provides the basic calcium needs of cashmere goats, maintains the health of their bones and teeth, and participates in physiological processes such as nerve conduction and muscle contraction; when it is 100-150 parts, and more preferably 125 parts, it can better promote the growth and production performance of cashmere goats and improve their resistance to diseases; when it is 150-200 parts, and more preferably 180 parts, it can help prevent calcium deficiency in certain circumstances, but it should not be added excessively to avoid affecting the absorption of other nutrients by cashmere goats.

[0028] 20-100 parts of adhesive, preferably 20-50 parts or 50-80 parts or 80-100 parts. When it is 20-50 parts, more preferably 35 parts, it can ensure that the lick brick has a certain hardness and stability, which is convenient for cashmere goats to lick, and at the same time control the dissolution rate of the lick brick to ensure that the cashmere goats can continue to obtain nutrition; when it is 50-80 parts, more preferably 65 parts, it can better improve the hardness and stability of the lick brick and reduce waste; when it is 80-100 parts, more preferably 90 parts, it helps to improve the durability of the lick brick, and has a certain regulatory effect on the feeding behavior and nutritional intake of cashmere goats, indirectly affecting the production performance of cashmere. The preferred binder of the present invention is molasses. Compared with other binders, molasses not only has a bonding effect, but also can provide energy and carbon required for protein synthesis for cashmere goats.

[0029] 8855-9765 parts of sodium chloride, preferably 8855-9000 parts or 9000-9500 parts or 9500-9765 parts. The main function of sodium chloride in the lick brick is to provide the necessary sodium and chlorine elements, regulate the physiological functions and appetite of cashmere goats, and at the same time contribute to the anti-stress ability of cashmere goats within a reasonable range, such as helping to maintain body temperature regulation and water balance in a hot environment.

[0030] The present invention also provides a method for preparing the above-mentioned grazing cashmere goat multi-nutritional balanced lick brick, comprising the following steps: weighing each raw material by weight, crushing calcium carbonate and sodium chloride, mixing evenly, sequentially adding copper sulfate pentahydrate, zinc sulfate monohydrate, sodium selenite, anhydrous ferrous sulfate, manganese sulfate monohydrate, 1% cobalt chloride, potassium iodide, DL-α-tocopherol acetate, vitamin A acetate and adhesive, adding water to mix, and then pouring into a mold to make bricks, preferably mixing and stirring evenly. The present invention has no special restrictions on the source of each raw material, and all can be obtained through market channels.

[0031] In the present invention, calcium carbonate and sodium chloride are preferably crushed to a particle size of ≤180 μm, which can improve the mixing uniformity and the physical properties of the lick brick, and facilitate the release of nutrients.

[0032] In the present invention, the amount of water added is preferably 10%-15% of the total weight of the raw materials, and more preferably 12%. It is preferred that the bricks are dried after making until the water content of the lick bricks is 5%-8%, and more preferably 6%. If the water content is too high, the lick bricks are easily affected by moisture, resulting in mold and deterioration, affecting their quality and nutritional value, and at the same time, the hardness of the lick bricks will be reduced, making them easy to break, which is not conducive to storage and use; if the water content is too low, the lick bricks are too hard, which is not conducive to cashmere goats licking, and will also affect the stability and bioavailability of some of the nutrients.

[0033] The present invention also provides application of the multi-nutrient balanced lick brick for grazing cashmere goats in improving cashmere production performance of cashmere goats.

[0034] The technical solutions provided by the present invention are described in detail below in conjunction with the embodiments, but they should not be construed as limiting the protection scope of the present invention.

[0035] Example 1

[0036] A multi-nutritional balanced lick brick for grazing cashmere goats, the preparation method of which is as follows:

[0037] Weigh the following raw materials in parts by weight: 40 parts of cupric sulfate pentahydrate, 65 parts of zinc sulfate monohydrate, 0.5 parts of sodium selenite, 110 parts of anhydrous ferrous sulfate, 15 parts of manganese sulfate monohydrate, 25 parts of 1% cobalt chloride, 0.5 parts of potassium iodide, 83 parts of DL-α-tocopherol acetate, 1 part of vitamin A acetate, 200 parts of calcium carbonate, 100 parts of molasses, and 9360 parts of sodium chloride;

[0038] Crush calcium carbonate and sodium chloride to a particle size of ≤180 μm, mix them evenly, add copper sulfate pentahydrate, zinc sulfate monohydrate, sodium selenite, anhydrous ferrous sulfate, manganese sulfate monohydrate, 1% cobalt chloride, potassium iodide, DL-α-tocopherol acetate, vitamin A acetate and molasses in sequence, add water according to 12% of the total weight of the raw materials, stir evenly, pour into a mold to make bricks, and dry in a ventilated and cool place to a moisture content of 6%.

[0039] Example 2

[0040] A multi-nutritional balanced lick brick for grazing cashmere goats, the preparation method of which is as follows:

[0041] Weigh the following raw materials in parts by weight: 35 parts of cupric sulfate pentahydrate, 80 parts of zinc sulfate monohydrate, 0.5 parts of sodium selenite, 90 parts of anhydrous ferrous sulfate, 25 parts of manganese sulfate monohydrate, 30 parts of 1% cobalt chloride, 0.5 parts of potassium iodide, 100 parts of DL-α-tocopherol acetate, 1 part of vitamin A acetate, 120 parts of calcium carbonate, 50 parts of molasses, and 9468 parts of sodium chloride;

[0042] Crush calcium carbonate and sodium chloride to a particle size of ≤180 μm, mix them evenly, add copper sulfate pentahydrate, zinc sulfate monohydrate, sodium selenite, anhydrous ferrous sulfate, manganese sulfate monohydrate, 1% cobalt chloride, potassium iodide, DL-α-tocopherol acetate, vitamin A acetate and molasses in sequence, add water according to 10% of the total weight of the raw materials, stir evenly, pour into a mold to make bricks, and dry in a ventilated and cool place to a moisture content of 5%.

[0043] Example 3

[0044] A multi-nutritional balanced lick brick for grazing cashmere goats, the preparation method of which is as follows:

[0045] Weigh the following raw materials in parts by weight: 50 parts of cupric sulfate pentahydrate, 110 parts of zinc sulfate monohydrate, 0.5 parts of sodium selenite, 140 parts of anhydrous ferrous sulfate, 30 parts of manganese sulfate monohydrate, 40 parts of 1% cobalt chloride, 1 part of potassium iodide, 150 parts of DL-α-tocopherol acetate, 1.5 parts of vitamin A acetate, 150 parts of calcium carbonate, 57 parts of molasses, and 9270 parts of sodium chloride;

[0046] Crush calcium carbonate and sodium chloride to a particle size of ≤180 μm, mix them evenly, add copper sulfate pentahydrate, zinc sulfate monohydrate, sodium selenite, anhydrous ferrous sulfate, manganese sulfate monohydrate, 1% cobalt chloride, potassium iodide, DL-α-tocopherol acetate, vitamin A acetate and molasses in sequence, add water according to 14% of the total weight of the raw materials, stir evenly, pour into a mold to make bricks, and dry in a ventilated and cool place to a moisture content of 7%.

[0047] Example 4

[0048] A multi-nutritional balanced lick brick for grazing cashmere goats, the preparation method of which is as follows:

[0049] Weigh the following raw materials in parts by weight: 30 parts of cupric sulfate pentahydrate, 60 parts of zinc sulfate monohydrate, 0.1 parts of sodium selenite, 54.5 parts of anhydrous ferrous sulfate, 20 parts of manganese sulfate monohydrate, 50 parts of 1% cobalt chloride, 0.2 parts of potassium iodide, 60 parts of DL-α-tocopherol acetate, 0.2 parts of vitamin A acetate, 40 parts of calcium carbonate, 20 parts of molasses, and 9665 parts of sodium chloride;

[0050] Crush calcium carbonate and sodium chloride to a particle size of ≤180 μm, mix them evenly, add copper sulfate pentahydrate, zinc sulfate monohydrate, sodium selenite, anhydrous ferrous sulfate, manganese sulfate monohydrate, 1% cobalt chloride, potassium iodide, DL-α-tocopherol acetate, vitamin A acetate and molasses in sequence, add water according to 13% of the total weight of the raw materials, stir evenly, pour into a mold to make bricks, and dry in a ventilated and cool place to a moisture content of 6.5%.

[0051] Example 5

[0052] A multi-nutritional balanced lick brick for grazing cashmere goats, the preparation method of which is as follows:

[0053] Weigh the following raw materials in parts by weight: 80 parts of copper sulfate pentahydrate, 160 parts of zinc sulfate monohydrate, 1 part of sodium selenite, 250 parts of anhydrous ferrous sulfate, 35 parts of manganese sulfate monohydrate, 50 parts of 1% cobalt chloride, 2 parts of potassium iodide, 160 parts of DL-α-tocopherol acetate, 2 parts of vitamin A acetate, 180 parts of calcium carbonate, 80 parts of molasses, and 9000 parts of sodium chloride;

[0054] Crush calcium carbonate and sodium chloride to a particle size of ≤180 μm, mix them evenly, add copper sulfate pentahydrate, zinc sulfate monohydrate, sodium selenite, anhydrous ferrous sulfate, manganese sulfate monohydrate, 1% cobalt chloride, potassium iodide, DL-α-tocopherol acetate, vitamin A acetate and molasses in sequence, add water according to 11% of the total weight of the raw materials, stir evenly, pour into a mold to make bricks, and dry in a ventilated and cool place to a moisture content of 7.5%.

[0055] Test Example 1

[0056] Fourteen 1-year-old and 2-year-old Inner Mongolia cashmere goat ewes were selected and divided into a control group and a test group. The control group was fed with ordinary salt bricks, which consisted of table salt; the test group was fed with the multi-nutrient balanced lick bricks of Example 1. The Inner Mongolia cashmere goats were fed with lick bricks for 12 months, and the feeding was terminated when the cashmere was plucked the following year.

[0057] Test Example 2

[0058] A total of 460 Inner Mongolia cashmere goat ewes aged 1 to 5 years old were selected and divided into a control group and an experimental group, with 230 goats in the control group and 230 goats in the experimental group. The control group was fed with ordinary salt bricks; the experimental group was fed with the multi-nutrient balanced lick bricks of Example 1. The Inner Mongolia cashmere goats were fed with lick bricks for 12 months, that is, the feeding was stopped when the cashmere was plucked the following year.

[0059] At the end of feeding the licking bricks in Experimental Example 1 and Experimental Example 2, cashmere samples were collected from a 10 cm × 10 cm area on the upper edge of the left shoulder blade of the body during the cashmere goat's wool-grabbing time, and the cashmere length and cashmere fineness were measured, and the cashmere yield was recorded. In addition, during the test of Experimental Example 2, the birth weight and twin rate of the offspring lambs were recorded, and the results are shown in Table 1.

[0060] Table 1 Cashmere goat production performance of Test Example 1 and Test Example 2

[0061]

[0062] According to the contents recorded in Table 1, it can be seen that feeding the multi-nutrient balanced lick brick of the present invention has no effect on the body weight after fleecing; Test Example 2 has no effect on the birth weight of lambs, and the twin lamb rate is increased by 3 percentage points.

[0063] Compared with the control group, the cashmere density was increased after feeding the multi-nutrient balanced lick brick. In the one-year-old flock of Experimental Example 1, the cashmere density increased from 3820 strands / cm in the control group to 2 The number of roots / cm in the experimental group increased to 4046 2 , increased by 5.92%. In the 2-year-old flock, the cashmere density increased from 3457 strands / cm in the control group to 2 Increased to 4016 / cm 2 In the natural flock of Experimental Example 2, the cashmere density increased from 2990 strands / cm in the control group to 2 Increased to 3637 / cm 2 , up 21.64%.

[0064] The cashmere production was increased after feeding the multi-nutrient balanced lick bricks. In the 1-year-old flock of Experimental Example 1, the cashmere production increased from 602.0g in the control group to 770.0g, an increase of 27.91%, and in the 2-year-old flock, the cashmere production increased from 638.8g in the control group to 743.3g, an increase of 16.36%. In the natural flock of Experimental Example 2, the cashmere production increased from 622.1g in the control group to 693.2g, an increase of 11.42%.

[0065] After feeding the multi-nutrient balanced lick brick, the cashmere fineness was reduced. In the 1-year-old flock of Experimental Example 1, the cashmere fineness decreased from 15.3μm to 15.0μm, a decrease of 1.96%, and in the 2-year-old flock, the cashmere fineness decreased from 15.6μm to 15.3μm, a decrease of 1.92%. In the natural flock of Experimental Example 2, the cashmere fineness decreased from 15.5μm to 15.3μm, a decrease of 1.29%.

[0066] The above results prove that the multi-nutrient balanced licking brick of the present invention can promote the development of secondary hair follicles of the skin, increase the number of active secondary hair follicles of the skin, increase the density of cashmere, increase the output of cashmere and improve the quality of cashmere.

[0067] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A multi-nutritional balanced lick brick for grazing cashmere goats, characterized in that: The following raw materials are included by weight: 20-100 parts of cupric sulfate pentahydrate, 35-165 parts of zinc sulfate monohydrate, 0.1-1 parts of sodium selenite, 54.5-270 parts of anhydrous ferrous sulfate, 10-40 parts of manganese sulfate monohydrate, 15-65 parts of 1% cobalt chloride, 0.2-2 parts of potassium iodide, 40-200 parts of DL-α-tocopherol acetate, 0.2-2 parts of vitamin A acetate, 40-200 parts of calcium carbonate, 20-100 parts of binder, and 8855-9765 parts of sodium chloride.

2. The multi-nutritional balanced lick brick for grazing cashmere goats according to claim 1, characterized in that: The binder is molasses.

3. The method for preparing the multi-nutritional balanced lick brick for grazing cashmere goats according to claim 1 or 2, characterized in that: The method comprises the following steps: weighing the raw materials, crushing calcium carbonate and sodium chloride, mixing them uniformly, sequentially adding copper sulfate pentahydrate, zinc sulfate monohydrate, sodium selenite, anhydrous ferrous sulfate, manganese sulfate monohydrate, 1% cobalt chloride, potassium iodide, DL-α-tocopherol acetate, vitamin A acetate and a binder, adding water to mix, and then pouring into a mold to make bricks.

4. The preparation method according to claim 3, characterized in that: The calcium carbonate and sodium chloride are crushed to a particle size of ≤180 μm.

5. The preparation method according to claim 3, characterized in that: The amount of water added is 10%-15% of the total weight of the raw materials.

6. The preparation method according to claim 3, characterized in that: The bricks are dried after being made until the water content of the bricks is 5%-8%.

7. Use of the multi-nutrient balanced lick brick for grazing cashmere goats according to claim 1 or 2 in improving the cashmere production performance of cashmere goats.

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