Breeding method for improving milk production capacity of milk goats in northern Qianbei mountainous area

Abstract

The invention provides a breeding method for improving the milk production capacity of milk goats in the northern Qianbei mountainous area, and belongs to the technical field of goat breeding, the breeding method comprises the following steps: (1) setting the movable space of each pregnant milk goat in the northern Qianbei mountainous area in a goat house to be 5-8m < 2 >, and disinfecting the goat house to obtain a clean goat house; (2) grazing for 4-5 hours every day, and feeding 3-5kg / d of special mixed feed in the lactation period of the goats; (3) massaging mammary glands 7-10 days after the goats are parturient; the special mixed feed in the step (2) is prepared from 15-20 parts of alfalfa, 10-15 parts of ryegrass, 50-60 parts of corn, 20-25 parts of wheat bran, 5-10 parts of stevia rebaudiana, 5-8 parts of yeast culture and 0.5-1 part of vitamin E. Experiments show that the breeding method provided by the invention can improve the milk yield and milk production quality of the milk goats in the northern Guizhou mountainous area, and also can improve the oxidation resistance of the milk goats.

Description

Technical Field

[0001] The invention belongs to the technical field of goat breeding, and in particular relates to a breeding method for improving the milk production capacity of dairy goats in the mountainous area of ​​northern Guizhou. Background Art

[0002] Northern Guizhou is located in the mountainous area of ​​the Yunnan-Guizhou Plateau. It has a unique karst landform, narrow terrain, steep slopes, many mountains and hills. It is located in the middle and low latitudes and belongs to the subtropical monsoon climate zone. There is no severe cold in winter and no scorching heat in summer. There is sufficient heat, abundant rainfall and high humidity.

[0003] Dairy goats are mammals of the genus Capra, family Caprae, in the order Ungulata. They like dryness and are suitable for living in dry and cool areas. They are lively and active and like to climb high places. They can eat all kinds of forage grass, shrub branches and leaves, crop straw, agricultural and sideline products, fruits and vegetables, and food processing waste. At the same time, dairy goats also have the advantages of strong adaptability and disease resistance. Dairy goats mainly produce milk, with high milk production, stable milk production performance, excellent milk quality, high nutritional value, small fat globules, casein structure similar to human milk, low acidity, and easier for human body to absorb than cow's milk. They are a good nutritional product for infants, the elderly, and patients. Dairy goats have low demand for concentrated feed, wide feed sources, high reproduction rate, strong adaptability, and are easy to raise.

[0004] However, the humid climate characteristics of the mountainous area in northern Guizhou do not conform to the characteristics of dairy goats that prefer dryness, resulting in low production efficiency of dairy goats; and in the breeding process of dairy goats, the milk production performance of dairy goats, such as milk production rate and milk quality, is also uneven, which has obviously affected the development of the dairy goat industry.

[0005] Therefore, providing a method that can improve the breeding level of dairy goats in the mountainous areas of northern Guizhou and enhance the milk production performance of dairy goats in the mountainous areas of northern Guizhou is of great significance for the rapid development of the dairy goat industry. Summary of the invention

[0006] In view of this, the object of the present invention is to provide a breeding method for improving the milk production capacity of dairy goats in the mountainous areas of northern Guizhou, wherein the breeding method can improve the milk production and milk quality of dairy goats in the mountainous areas of northern Guizhou, and at the same time, can also improve the antioxidant performance of the body.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] The present invention provides a breeding method for improving the milk production capacity of dairy goats in the mountainous area of ​​northern Guizhou, comprising the following steps:

[0009] (1) The available space for each pregnant dairy goat in the mountainous area of ​​northern Guizhou is set at 5 to 8 m 2 , disinfect the sheep house to obtain a clean sheep house;

[0010] (2) Grazing for 4 to 5 hours a day, feeding 3 to 5 kg / (goat / day) of special mixed feed during the goat lactation period;

[0011] (3) Massage the mammary glands 7 to 10 days after goat delivery;

[0012] The special mixed feed in step (2) comprises the following raw material components in parts by weight:

[0013] 15-20 parts of alfalfa, 10-15 parts of ryegrass, 50-60 parts of corn, 20-25 parts of wheat bran, 5-10 parts of stevia, 5-8 parts of yeast culture, and 0.5-1 part of vitamin E.

[0014] Preferably, the temperature in the sheep house in step (1) is 12-18° C., and the relative humidity is 70-80%.

[0015] Preferably, the frequency of disinfection in step (1) is 2 to 3 times per week, and the duration of disinfection is 30 to 40 minutes.

[0016] Preferably, an ultraviolet disinfection lamp is used during the disinfection in step (1), and the power of the ultraviolet disinfection lamp is 20 to 40W.

[0017] Preferably, the number of sheep raised in the sheep house in step (1) is 15 to 20, and the area of ​​the sheep house is 75 to 160 m 2 .

[0018] Preferably, the grazing time period in step (2) is 8 to 11 a.m. and 3 to 5 p.m.

[0019] Preferably, the special mixed feed in step (2) comprises the following raw material components in parts by weight:

[0020] 16-18 parts of alfalfa, 12-14 parts of ryegrass, 52-58 parts of corn, 22-24 parts of wheat bran, 6-8 parts of stevia, 6-7 parts of yeast culture, and 0.6-0.8 parts of vitamin E.

[0021] Preferably, the frequency of the massage in step (3) is 2 to 3 times per day, and the duration of the massage is 8 to 10 minutes per time.

[0022] Preferably, the massage time periods in step (3) are 7-8 a.m., 12-1 p.m., and 5-6 p.m.; two or three of the three time periods are selected for massage.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention improves the milk production and quality of dairy goats by limiting the breeding method of dairy goats in the mountainous area of ​​northern Guizhou, including the raw material composition of the special mixed feed for feeding, grazing, and massaging the mammary gland. At the same time, the environmental temperature and humidity in the sheep house, the grazing time, and the composition ratio of the feed are controlled, thereby overcoming the adverse effect of high humidity in the mountainous area of ​​northern Guizhou on the milk production of dairy goats, and can also reduce the content of malondialdehyde in the serum of dairy goats, and improve the activity of antioxidant indicators (such as total antioxidant capacity, superoxide dismutase and glutathione peroxidase); further indicating that the breeding method in the present invention can improve the antioxidant performance of dairy goats and improve the antioxidant capacity of dairy goats. DETAILED DESCRIPTION

[0025] The present invention provides a breeding method for improving the milk production capacity of dairy goats in the mountainous area of ​​northern Guizhou, comprising the following steps:

[0026] (1) The available space for each pregnant dairy goat in the mountainous area of ​​northern Guizhou is set at 5 to 8 m 2 , disinfect the sheep house to obtain a clean sheep house;

[0027] (2) Grazing for 4 to 5 hours a day, feeding 3 to 5 kg / (goat / day) of special mixed feed during the goat lactation period;

[0028] (3) Massage the mammary gland 7 to 10 days after the goat gives birth.

[0029] In the present invention, the temperature in the sheep house is preferably 12-18°C, more preferably 13-17°C, and the relative humidity is preferably 70-80%, more preferably 72-78%; the movable space of each pregnant dairy goat in the northern Guizhou mountainous area is set to 5-8m 2 , disinfect the sheep house to obtain a clean sheep house.

[0030] In the present invention, the movable space is preferably 6 to 7 m 2 , and more preferably 6.5m 2 ; The frequency of the disinfection is preferably 2 to 3 times per week; The time of the disinfection is preferably 30 to 40 minutes, more preferably 32 to 38 minutes, and more preferably 34 to 36 minutes; The disinfection is preferably performed using an ultraviolet disinfection lamp, and the power of the ultraviolet disinfection lamp is preferably 20 to 40w, more preferably 25 to 35w, and more preferably 30w; The disinfection can not only reduce the abundance of bacteria in the sheep house, making the hair of dairy goats smoother and neater, but also help improve the immunity and milk production of dairy goats. The number of sheep raised in the sheep house is preferably 15 to 20, more preferably 16 to 18, and more preferably 17; The area of ​​the sheep house is preferably 75 to 160m 2 , more preferably 80 to 150 m2 , and more preferably 90 to 140 m 2 , and further preferably 100 to 120 m 2 .

[0031] In the present invention, the goats are grazed for 4 to 5 hours every day, and 3 to 5 kg / (goat·day) of special mixed feed is fed during the goat lactation period.

[0032] In the present invention, the grazing time is preferably 4.2-4.8 hours, more preferably 4.4-4.6 hours, and more preferably 4.5 hours; the grazing time period is preferably 8-11 am and 3-5 pm, more preferably 8-10 am and 3-5 pm, and more preferably 8-11 am and 4-5 pm; the lactation period preferably includes lactation period I (mid-pregnancy to 2 days after delivery), lactation period II (3-8 days after delivery), and lactation period (lactation period III, 9 days after delivery to the beginning of the regression period); the feeding amount of the special mixed feed is preferably 3.5-4.5 kg / (head·d), further preferably 4kg / (head·d); the special mixed feed preferably includes the following raw material components in parts by mass: 15-20 parts of alfalfa, 10-15 parts of ryegrass, 50-60 parts of corn, 20-25 parts of wheat bran, 5-10 parts of stevia, 5-8 parts of yeast culture, and 0.5-1 part of vitamin E; the alfalfa is further preferably 16-18 parts, and further preferably 17 parts; the ryegrass is further preferably 12-14 parts, and further preferably 13 parts; the alfalfa can increase the milk production and quality of dairy goats, and improve the utilization rate of protein by dairy goats. The corn is further preferably 52-58 parts, further preferably 54-56 parts, and further preferably 55 parts; the wheat bran is further preferably 22-24 parts, further preferably 23 parts; the stevia is further preferably 6-8 parts, further preferably 7 parts; the stevia is rich in glycosides and polyphenols, and has antibacterial, anti-oxidation, hypoglycemic and blood lipid effects. It is applied to livestock and poultry feed, which has the effects of promoting goat digestion of feed, improving lactation performance of lactating organisms, promoting intestinal health, anti-oxidative stress, and enhancing body immunity. The yeast culture is further preferably 6-7 parts, and further preferably 6.5 parts; the yeast culture contains a variety of nutrients and growth factors, which mainly act on the gastrointestinal tract of animals, can improve the palatability of feed, increase animal feed intake, and promote animal growth. Adding it to feed can increase milk fat rate and improve milk quality. The vitamin E is further preferably 0.6-0.8 parts, and further preferably 0.7 parts.

[0033] In the present invention, the mammary gland is massaged 7 to 10 days after the goat gives birth.

[0034] In the present invention, the frequency of the massage is preferably 2 to 3 times / d; the period of the massage is preferably 8 to 9 days after delivery; the time of the massage is preferably 8 to 10 minutes / time, more preferably 8.5 to 9.5 minutes / time, and more preferably 9 minutes / time; the time periods of the massage are preferably 7 to 8 am, 12 to 1 pm, and 5 to 6 pm; two or three of the three time periods are selected for massage, more preferably 7:30 am, 12:30 pm, and 5:30 pm; the massage can activate breast cells, promote the metabolism of breast lactation and milk ejection, increase milk production, and at the same time avoid the occurrence of mastitis.

[0035] 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.

[0036] Example 1

[0037] A breeding method for improving the milk production capacity of dairy goats in the mountainous area of ​​northern Guizhou, comprising the following steps:

[0038] (1) The available space for each pregnant dairy goat in the mountainous area of ​​northern Guizhou is set at 8 m2 in the goat house (temperature 15°C, relative humidity 75%). 2 Each sheep house contains 15 pregnant goats. The sheep house is disinfected 3 times a week using a 20W UV disinfection lamp for 30 minutes per time. The area covered is 120m 2 a clean sheepfold;

[0039] (2) The pregnant goats were grazed from 8 to 11 a.m. and 3 to 5 p.m. every day. During the lactation period, 4 kg / (goat / day) of special mixed feed was fed;

[0040] (3) Seven days after the goat gives birth, massage the goat's mammary glands at 7 a.m., 12 p.m., and 5 p.m., with each massage lasting 10 minutes.

[0041] Described special mixed feed is composed as follows:

[0042] 15 parts of alfalfa, 15 parts of ryegrass, 60 parts of corn, 20 parts of wheat bran, 5 parts of stevia, 8 parts of yeast culture (purchased from Jiangsu Youheng Biotechnology Co., Ltd.), and 0.5 parts of vitamin E.

[0043] Example 2

[0044] A breeding method for improving the milk production capacity of dairy goats in the mountainous area of ​​northern Guizhou, comprising the following steps:

[0045] (1) The available space for each pregnant dairy goat in the mountainous area of ​​northern Guizhou is set at 5 m in the goat house (temperature 12°C, relative humidity 70%). 2Each sheep house contains 20 pregnant goats. The sheep house is disinfected twice a week using a 40W UV disinfection lamp for 40 minutes per time. The area covered is 100m 2 a clean sheepfold;

[0046] (2) The pregnant goats were grazed from 8 to 10 a.m. and 3 to 5 p.m. every day. During the lactation period, 5 kg / (goat / day) of special mixed feed was fed;

[0047] (3) Ten days after the goat gives birth, massage the goat's mammary glands at 8 a.m., 1 p.m., and 6 p.m., each massage lasting 8 minutes.

[0048] Described special mixed feed is composed as follows:

[0049] 20 parts of alfalfa, 10 parts of ryegrass, 50 parts of corn, 25 parts of wheat bran, 10 parts of stevia, 5 parts of yeast culture, and 1 part of vitamin E.

[0050] Example 3

[0051] A breeding method for improving the milk production capacity of dairy goats in the mountainous area of ​​northern Guizhou, comprising the following steps:

[0052] (1) The available space for each pregnant dairy goat in the mountainous area of ​​northern Guizhou is set at 7 m in the goat house (temperature 18°C, relative humidity 80%). 2 Each sheep house contains 16 pregnant goats. The sheep house is disinfected 3 times a week using a 40W UV disinfection lamp. The disinfection time is 35 minutes per time, and the area covered is 112m 2 a clean sheepfold;

[0053] (2) The pregnant goats were grazed from 8 to 11 a.m. and 4 to 5 p.m. every day. During the lactation period, 3 kg / (goat / day) of special mixed feed was fed;

[0054] (3) Eight days after the goat gives birth, massage the goat's mammary glands at 7:30 a.m., 12:30 p.m., and 5:30 p.m., with each massage lasting 9 minutes.

[0055] Described special mixed feed is composed as follows:

[0056] 17 parts alfalfa, 13 parts ryegrass, 55 parts corn, 23 parts wheat bran, 7 parts stevia, 6 parts yeast culture, 0.7 parts vitamin E.

[0057] Comparative Example 1

[0058] The method in Example 1 is used to breed dairy goats in the mountainous area of ​​northern Guizhou, with the only difference being that the stevia and yeast culture in the special mixed feed are discarded.

[0059] Comparative Example 2

[0060] The method in Example 1 is used to breed dairy goats in the mountainous area of ​​northern Guizhou, except that stevia is replaced by peanut vines.

[0061] Comparative Example 3

[0062] The method in Example 1 is adopted to breed dairy goats in the mountainous area of ​​northern Guizhou, except that the operation of massaging the goat's mammary gland is abandoned.

[0063] Comparative Example 4

[0064] The method in Example 1 is used to breed dairy goats in the mountainous area of ​​northern Guizhou, with the only difference being that the grazing time is 9 to 11 a.m. and 3 to 4 p.m. every day.

[0065] Comparative Example 5

[0066] The method in Example 1 is used to breed dairy goats in the mountainous area of ​​northern Guizhou, with the only difference being that the grazing time is 8 to 12 a.m. and 3 to 6 p.m. every day.

[0067] Test Example 1

[0068] 105 dairy goats in the mountainous area of ​​northern Guizhou with a body weight of 50-55kg and the second litter were selected and randomly divided into 7 groups, namely, embodiment 1 group, embodiment 2 group, embodiment 3 group, comparative example 1 group, comparative example 2 group, comparative example 3 group, comparative example 4 group, comparative example 5 group and control group, 5 goats in each group, and 3 repetitions were set in each group. The control group was fed with a basic feed (composed of 55% corn, 20% bran, 12% soybean meal, 10% rapeseed meal, 2% calcium hydrogen phosphate and 1% salt), and the remaining groups were fed with the special mixed feed in the corresponding embodiments 1-3 and comparative examples 1-5, and cultured according to their corresponding breeding methods. The breeding method of the control group was the same as that of the embodiment 1 group (except that the feeding feed was different). The test was officially started after a 7d pre-test period, and the test period was 56d.

[0069] After the goats gave birth, the milk production of each group of goats was measured in the first to fourth weeks after giving birth. The goats were milked at 7 am and 4 pm every day, and the daily milk production was recorded. The average daily milk production was calculated according to formula (1). The results are shown in Table 1.

[0070] Average daily milk production = total milk production / (number of test sheep × number of days for measuring milk production) Formula (1)

[0071] Table 1 Average daily milk production of dairy goats in different groups

[0072] Group Milk production / [kg / (cup·d)] Example 1 Group 2.35±0.16 Example 2 Group 2.40±0.20 Example 3 Group 2.38±0.19 Comparative Example 1 1.79±0.18 Comparative Example 2 1.83±0.21 Comparative Example 3 1.87±0.18 Comparative Example 4 1.85±0.32 Comparative Example 5 1.81±0.17 Control group 1.65±0.24

[0073] It can be seen from Table 1 that the milk production of dairy goats in Example 1-3 groups is significantly improved compared with the milk production of the control group and the comparative example 1-2 groups, and compared with the comparative example 3 group, massaging the postpartum dairy goats can increase the milk production of dairy goats; by comparing Examples 1-3 and Comparative Examples 4-5, it can be seen that if the grazing time is too short, the sunshine time, feed intake and exercise amount of dairy goats are reduced, and the blood circulation and metabolism of dairy goats are reduced, thereby affecting milk production; if the grazing time is too long, the outdoor time of dairy goats increases, and the outdoor environmental humidity in the mountainous area of ​​northern Guizhou is high, which will affect the appetite and exercise desire of dairy goats, and easily produce heat stress, and the immune performance is suppressed, so that the milk production is greatly reduced; the results show that the special mixed feed and breeding method provided by the present invention can increase the milk production of dairy goats in the mountainous area of ​​northern Guizhou, and have the effect of improving the milk production performance of dairy goats in the mountainous area of ​​northern Guizhou.

[0074] Test Example 2

[0075] 75 dairy goats weighing 50-55kg and in their third litter in the mountainous area of ​​northern Guizhou were selected and randomly divided into 5 groups, namely, the control group, the embodiment 1 group, the comparative example 1 group, the comparative example 2 group, the comparative example 3 group, the comparative example 4 group and the comparative example 5 group, 5 goats in each group, and 3 repetitions in each group. The control group was fed with a diet consisting of 52% corn stalks, 25% corn, 15% soybean meal, 5% bran, 2% calcium bicarbonate, and 1% baking soda, and was raised according to the breeding method in embodiment 1; the embodiment 1 group and the comparative examples 1-5 groups were raised according to the corresponding breeding methods in embodiment 1 and comparative examples 1-5. The pre-test was 10 days and the test period was 60 days.

[0076] 10 days after the goats were calved, milk samples were collected at 8:00 a.m. and 4:00 p.m. every day, and the milk composition was tested using a milk composition analyzer. The results are shown in Table 2.

[0077] Table 2 Milk quality of dairy goats in different treatment groups

[0078] Group Milk protein rate / % Milk fat rate / % Lactose rate / % Non-fat solids / % Example 1 Group 3.91±0.35 4.02±0.42 4.21±0.31 8.33±0.28 Comparative Example 1 2.76±0.41 2.75±0.35 4.07±0.21 8.10±0.28 Comparative Example 2 2.81±0.52 2.79±0.38 4.10±0.22 8.13±0.30 Comparative Example 3 2.96±0.43 2.88±0.40 4.12±0.24 8.15±0.27 Comparative Example 4 2.90±0.35 2.83±0.31 4.11±0.19 8.14±0.20 Comparative Example 5 2.84±0.36 2.82±0.43 4.10±0.58 8.13±0.47 Control group 2.65±0.38 2.61±0.57 4.03±0.25 8.04±0.32

[0079] As can be seen from Table 2, compared with the control group, the milk protein rate, milk fat rate, lactose rate and non-fat solids content of the dairy goats measured in Example 1 group were significantly improved, while the quality of the milk components in the comparative example 1 and comparative example 2 groups in which the raw material components of the special mixed feed were changed, the comparative example 3 group without massage treatment, and the comparative example 4 and 5 groups in which the grazing time was changed were improved, but the improvement effect was limited; it shows that the breeding method and the special mixed feed provided by the present invention can improve the milk production quality of dairy goats in the mountainous area of ​​northern Guizhou.

[0080] Test Example 3

[0081] 90 first-born dairy goats weighing 50-55 kg in the mountainous area of ​​northern Guizhou were selected and randomly divided into 6 groups, namely, the control group, the embodiment 1 group, the embodiment 2 group, the embodiment 3 group, the comparative example 1 group and the comparative example 2 group, each group had 5 goats, and each group had 3 replicates. The control group was fed a diet consisting of 52% corn stalks, 25% corn, 15% soybean meal, 5% bran, 2% calcium bicarbonate, and 1% baking soda, and the diet was carried out according to the 100003 implementation.

[0082] The method in Example 1 was used for breeding. The Example 1-3 group and the Comparative Example 1-2 group were bred according to the feed and breeding method in the corresponding Example 1-3 and Comparative Example 1-2, respectively. The pre-test period was 10 days and the formal test period was 42 days.

[0083] Before morning feeding on the 42nd day of the formal test period, blood was collected from the fasting jugular vein. 10 ml of blood was collected from each sheep in a vacuum blood collection tube, centrifuged at 3500 r / min for 10 min, and the supernatant was transferred to a 2 ml centrifuge tube with a pipette. The activity of the above antioxidant indicators was determined using a serum total antioxidant capacity (T-AOC) kit, a malondialdehyde (MDA) kit, a superoxide dismutase (SOD) kit, and a glutathione peroxidase (GSH-Px) kit (all purchased from Nanjing Jiancheng Bioengineering Research Institute). The results are shown in Table 3.

[0084] Table 3 Antioxidant activity of serum indices of dairy goats in different treatments

[0085] Group T-AOC / (U / ml) MDA / (mmol / L) SOD / (U / ml) GSH-Px / (U / ml) Example 1 Group 14.06±2.48 3.81±1.53 125.63±2.78 247.68±61.24 Example 2 Group 14.01±2.17 3.82±1.46 125.89±2.61 247.76±54.59 Example 3 Group 13.97±2.24 3.84±1.50 124.85±2.54 246.64±57.28 Comparative Example 1 12.33±3.11 4.20±1.72 121.87±3.60 252.39±47.73 Comparative Example 2 12.51±3.01 4.21±1.83 122.18±3.71 256.63±54.15 Control group 11.56±2.68 5.05±2.08 120.31±3.51 240.42±46.08

[0086] As shown in Table 3, the MDA content in the serum of dairy goats in the Example 1-3 groups was significantly reduced, while the activities of T-AOC, SOD and GSH-Px were significantly increased. This result shows that the breeding method and the special mixed feed in the present invention can also improve the antioxidant capacity of dairy goats.

[0087] 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 breeding method for improving the milk production capacity of dairy goats in the mountainous areas of northern Guizhou, characterized in that: The steps include: (1) The available space for each pregnant dairy goat in the mountainous area of ​​northern Guizhou is set at 5 to 8 m 2 , disinfect the sheep house to obtain a clean sheep house; (2) Grazing for 4 to 5 hours a day, feeding 3 to 5 kg / (goat / day) of special mixed feed during the goat lactation period; (3) Massage the mammary glands 7 to 10 days after goat delivery; The special mixed feed in step (2) comprises the following raw material components in parts by weight: 15-20 parts of alfalfa, 10-15 parts of ryegrass, 50-60 parts of corn, 20-25 parts of wheat bran, 5-10 parts of stevia, 5-8 parts of yeast culture, and 0.5-1 part of vitamin E.

2. The breeding method according to claim 1, characterized in that: The temperature in the sheep house in step (1) is 12-18° C., and the relative humidity is 70-80%.

3. The breeding method according to claim 1, characterized in that: The frequency of disinfection in step (1) is 2 to 3 times per week, and the time of disinfection is 30 to 40 minutes.

4. The breeding method according to claim 1 or 3, characterized in that: In step (1), an ultraviolet disinfection lamp is used for disinfection, and the power of the ultraviolet disinfection lamp is 20 to 40W.

5. The breeding method according to claim 1, characterized in that: The number of sheep raised in the sheep house in step (1) is 15 to 20, and the area of ​​the sheep house is 75 to 160 m 2 .

6. The breeding method according to claim 1, characterized in that: The grazing time period in step (2) is 8 to 11 am and 3 to 5 pm.

7. The breeding method according to claim 1, characterized in that: The special mixed feed in step (2) comprises the following raw material components in parts by weight: 16-18 parts of alfalfa, 12-14 parts of ryegrass, 52-58 parts of corn, 22-24 parts of wheat bran, 6-8 parts of stevia, 6-7 parts of yeast culture, and 0.6-0.8 parts of vitamin E.

8. The breeding method according to claim 1, characterized in that: The frequency of the massage in step (3) is 2 to 3 times per day, and the duration of the massage is 8 to 10 minutes per time.

9. The breeding method according to claim 1 or 8, characterized in that: The massage time periods in step (3) are 7-8 am, 12-1 pm and 5-6 pm; two or three of the three time periods are selected for massage.