Method for enabling female deer to continuously grow antler

Abstract

The invention discloses a method for enabling a female deer to continuously grow antler, and belongs to the technical field of inducing the female deer to continuously grow antler. The method comprises the steps that S1, in summer and autumn, pilose antler in the growing period is sawed off at a conventional pilose antler sawing position S2, in the spring of the second year, the pilose antler roots left after pilose antler sawing in the step S1 are sawed off at the junctions of the pilose antler and the horn stems or directly on the horn stems, so that the periosteum of the horn stems is exposed; and repeating the steps S1 and S2. The invention provides a method for enabling a female deer to continuously generate antler under the condition that normal breeding of the female deer is not affected, namely, firstly, in summer and autumn, the antler in the growing period is sawed off at a conventional antler sawing position, then in spring of the next year, antler roots left after antler sawing are sawed off at the junction of the antler and a horn stalk or directly on the horn stalk, and the antler roots are sawed off at the junction of the antler and the horn stalk. By repeating the steps of sawing antler in summer and autumn, sawing antler roots in spring of the second year and exposing hornstalk periosteum, the continuous antler growth of the female deer can be induced. According to the method, exogenous hormones and other induction drugs do not need to be injected into the body of the female deer, so that internal secretion of the body of the female deer is not interfered, and adverse effects on normal growth and reproduction of the female deer are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of inducing female deer to grow antlers, in particular to a method for allowing female deer to grow antlers continuously. Background Art

[0002] The purpose of China's deer farming industry is to obtain the precious traditional Chinese medicine velvet antler. Under natural conditions, only male deer produce velvet antlers, while female deer do not. However, in order to ensure the normal turnover of the deer herd, each deer farm must raise nearly half of the female deer. This seriously reduces the income of the deer farm.

[0003] After years of research, it was found that female deer also have the tissue basis for growing antlers. They cannot grow antlers naturally because they do not get enough androgen stimulation in their bodies. If enough exogenous androgen is artificially injected, female deer can also be induced to grow antlers. However, since this induction method seriously interferes with the endocrine system in the female deer, it makes the female deer lose its normal ability to give birth, so it cannot be put into practical use.

[0004] In order to enable female deer to give birth normally and produce velvet antlers with economic value, in recent years, the inventor team has invented a practical technology to induce female deer to grow velvet antlers and applied for a patent (a low-cost, non-toxic inducer and a simple method for inducing female deer to grow velvet antlers; application number is 202311327105.3). Although this method can induce female deer to grow velvet antlers through a low-cost, non-toxic inducer, it is difficult for female deer to grow velvet antlers continuously. Figure 1 ) will ossify in the fall ( Figure 2 ). This ossified antler root does not fall off in the spring of the following year, and because its regeneration capacity is extremely limited, it cannot regenerate economically valuable antlers.

[0005] Based on this, how to make female deer grow antlers continuously without affecting normal reproduction is a technical problem that needs to be solved urgently. Summary of the invention

[0006] The purpose of the present invention is to provide a method for allowing a female deer to grow antlers continuously, so as to achieve the purpose of allowing the female deer to grow antlers continuously without affecting the normal reproduction of the female deer.

[0007] The technical purpose of the present invention is achieved through the following technical solutions:

[0008] A method for allowing a female deer to continuously grow antlers comprises the following steps:

[0009] S1. In summer and autumn, saw off the antlers of growing female deer at the regular sawing point (3 cm above the junction of the antler and the horn handle);

[0010] S2. In the spring of the second year, the antler roots left after sawing the antlers in step S1 are sawed off at the junction with the horn handle or directly on the horn handle to expose the horn handle periosteum;

[0011] Repeating the above steps S1 and S2 can allow the doe to grow antlers continuously.

[0012] As some possible implementation methods of the present application, in step S1, after sawing off the antler root, the periosteum of the horn handle needs to be exposed.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The present invention provides a method for allowing a female deer to grow antlers continuously without affecting the normal reproduction of the female deer. The method comprises first sawing off the antlers of the female deer in the growing period at the conventional sawing place in summer and autumn (to protect the antlers from being frostbitten in winter), and then sawing off the antler roots left after sawing off the antlers at the junction with the horn handle or directly on the horn handle in the spring of the second year to expose the periosteum of the horn handle. By repeating the steps of sawing off the antlers at the conventional place in summer and autumn, sawing off the antler roots in the spring of the second year, and exposing the periosteum of the horn handle, the female deer can be induced to grow antlers continuously.

[0015] 2. In the induction method provided by the present invention, there is no need to inject exogenous hormones and other induction drugs into the body of the doe, so it does not interfere with the endocrine system of the doe, and thus will not have an adverse effect on the normal growth and reproduction of the doe, and has extremely significant practicality; at the same time, by inducing the doe to grow antlers continuously, antlers with economic value can be repeatedly regenerated, which can significantly increase economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the velvet roots left after sawing the velvet in the regular place in summer and autumn;

[0017] Figure 2 for Figure 1 The picture of the velvet root after ossification;

[0018] Figure 3 Here are some pictures of removing antlers in spring;

[0019] Figure 4 This is a picture of one side having the velvet roots removed in spring and the other side having the velvet roots retained;

[0020] Figure 5 for Figure 4 Healing picture of the middle cut velvet root side;

[0021] Figure 6 for Figure 4 Growth pictures after 3 weeks. DETAILED DESCRIPTION

[0022] In the prior art, although the inducers used can induce female deer to grow antlers, it is difficult to make female deer grow antlers continuously. The antler roots left after sawing will be incompletely ossified in the autumn. Such ossified antler roots will not fall off in the spring of the following year, and because the regeneration capacity of the antler roots is extremely limited, it is impossible to regenerate antlers with economic value.

[0023] Based on this, the present invention provides a method for allowing a female deer to continuously grow antlers, comprising the following steps:

[0024] S1. In summer and autumn, saw off the antlers of growing female deer at the regular sawing place or directly on the antler handle;

[0025] S2. In the spring of the second year, the antler root sawed off in step S1 at the junction with the horn handle to expose the horn handle periosteum;

[0026] Repeating the above steps S1 and S2 can achieve continuous antler growth of the doe.

[0027] In the above scheme, the antlers in the growing period are first sawed off at the conventional sawing place in summer and autumn, and then in the spring of the second year, the antler roots left after sawing off the antlers in summer and autumn are sawed off at the junction with the horn handle or directly on the horn handle to expose the periosteum of the horn handle. By repeating the steps of sawing the antlers at the conventional sawing place in summer and autumn, sawing the antler roots in the spring of the second year, and exposing the periosteum of the horn handle, the female deer can be induced to grow antler continuously. In the induction method provided by the present invention, there is no need to inject exogenous hormones and other induction drugs into the body of the female deer, so it does not interfere with the endocrine system of the female deer, and thus will not have an adverse effect on the normal growth and reproduction of the female deer, and has extremely significant practicality; at the same time, by inducing the female deer to grow antlers continuously, the female deer can be induced to repeatedly regenerate antlers with economic value, which significantly increases the economic benefits.

[0028] It is worth noting that in step S2, after sawing off the antler root, the periosteum of the antler peduncle must be exposed. The inventor's team's previous research showed that stem cells for antler regeneration exist in the periosteum of the antler peduncle (reference literature: ①Guo Q, Liu Z, Zheng J, Zhao H, Li C. 2021. Substances for regenerative wound healing during antler renewal stimulated scar-less restoration of rat cutaneous wounds. Cell Tissue Res 386: 99-116; ②Li C, Mackintosh CG, Martin SK, Clark DE. 2007. Identification of key tissue type for antler regeneration through pedicle periosteum deletion. Cell Tissue Res 328: 65-75; ③Li C, Suttie JM, Clark DE. 2005. Histological examination of antler regeneration in red deer (Cervus elaphus). Anat Rec A Discov Mol Cell Evol Biol 282:163-174.), about three million horn stalk periosteum cells participate in antler regeneration every year, and can grow into 10 kilograms of antler tissue in 60 days (reference literature: Li C, Yang F, Sheppard A. 2009. Adult stem cells and mammalian epimorphic regeneration-insights from studying annual renewal of deer antlers. Curr Stem Cell Res Ther 4:237-251.). At the same time, the inventor team also found in the previous work that inducing female deer to grow antlers also has to go through the horn stalk stage. For this reason, the inventor team speculated that if the antler root is artificially removed (the removal process must mechanically stimulate the horn stalk periosteum) to expose the horn stalk periosteum, it is possible to achieve normal regeneration of antlers, thereby producing antlers with economic value. Based on this, the inventor verified the above speculation through a large number of experiments, and finally confirmed the correctness of the above speculation, and successfully induced female deer to grow antlers continuously.

[0029] The induction method of the present invention is described in detail below in conjunction with specific embodiments.

[0030] Example 1

[0031] S1. In summer and autumn, saw off the antlers of growing female deer at the regular antler sawing site;

[0032] S2. In the spring of the second year, when the male deer antler begins to regenerate, the antler roots on both sides left after sawing off the antler in step S1 are sawed off at the junction with the antler handle or directly on the antler handle, in order to expose the periosteum of the antler handle. Since the wound of the antler handle stump needs time to heal, the antler handle on the side where the antler root is removed is in a relatively static state during the healing period. However, after 3 weeks, the antler handle on the side where the antler root is removed begins to exert force and eventually grows a two-bar antler.

[0033] Repeating steps S1 and S2 can achieve the purpose of continuous antler growth of the female deer.

[0034] Example 2

[0035] S1. In summer and autumn, saw off the antlers of growing female deer;

[0036] S2. In the spring of the second year, when the antler of the male deer begins to regenerate, the antler root left after sawing off the antler in step S1 is sawed off at the junction with the antler handle or directly on the antler handle to expose the periosteum of the antler handle. Figure 4 ), only the antler roots on one side of the doe were cut off, and the antler roots on the other side (the control side) were retained. Since the wound healing of the horn stump takes time, the antler roots retained on the control side initially initiated antler regeneration, while the side without antler roots was in a relatively static state (such as Figure 5 ). However, after 3 weeks, the antlers on the side without the antler roots began to grow and eventually became two-bar antlers, while the antlers on the control side not only did not continue to grow, but also shrank slightly (such as Figure 6 ).

[0037] Based on this, every spring when the male deer's antlers begin to regenerate, the antler roots of the female deer left over from the previous autumn are cut off at the junction with the antler handle or directly on the antler handle to induce the regeneration of the female deer antler, which can achieve continuous antler growth in female deer, which is practical.

[0038] Through Examples 1 and 2, it can be fully proved that exposing the horn peduncle periosteum is very effective in inducing female deer to regenerate velvet antlers with economic value. Since this induction method does not require the injection of exogenous hormones and other induction drugs into the female deer, it does not interfere with the endocrine system in the female deer, nor does it have an adverse effect on the normal growth and reproduction of the female deer. It has extremely significant practicality and can be applied to actual production. At the same time, by inducing female deer to grow velvet antlers continuously, velvet antlers with economic value can be repeatedly regenerated, which can significantly increase economic benefits.

[0039] Comparative Example 1

[0040] Injecting a sufficient amount of exogenous androgen into the female deer will cause the antler roots to completely ossify. The completely ossified antler roots will fall off, which can cause effective mechanical stimulation to the periosteum of the antler stalk, thereby inducing the regeneration of economically valuable antlers.

[0041] This induction method comes at the cost of severely interfering with the doe's endocrine system, causing the doe to completely lose its normal ability to give birth, so it cannot be used in actual production.

Claims

1. A method for allowing female deer to grow antlers continuously, characterized in that: The steps include: S1. In summer and autumn, saw off the antlers of growing female deer at the regular sawing site; S2. In the spring of the second year, the antler roots left after sawing off the antlers in step S1 are sawed off at the junction with the horn handle or directly on the horn handle to expose the horn handle periosteum; Repeating the above steps S1 and S2 can achieve continuous antler growth of the doe.

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