CN101049128A - Composite prepaid feedstuff capable of raising breeding performance of milch cow - Google Patents

Abstract

The invention discloses a compound premix for improving the reproductive performance of dairy cows, which comprises: 1-3 parts of vitamin A, 1-10 parts of β-carotene, 12-20 parts of vitamin E, 10-100 parts of organic selenium, 20 -30 parts of organic zinc and 837-956 parts of organic carrier, all of which are parts by weight. The compound premix of the invention can reduce the incidence of reproductive diseases such as postpartum retained placenta and endometritis in dairy cows, enhance the estrus performance of dairy cows, and improve the conception rate and reproduction rate.

Description

Compound Premix for Improving Reproductive Performance of Dairy Cows

technical field

The invention relates to a compound premix for dairy cows, in particular to a compound premix for improving the reproductive performance of dairy cows.

Background technique

In recent years, my country's dairy cattle breeding industry has developed rapidly and its scale has continued to expand, but the breeding level is still relatively backward. Dairy cows are prone to reproductive diseases, and reproductive diseases are one of the main reasons for the elimination of dairy cows in pastures. The economic loss caused by reproductive disorders of dairy cows can reach 300-1,000 yuan per head per year, 50% of which are caused by shortened service life and increased breeding times. At the same time, reproductive diseases can easily induce other metabolic diseases, which is an important factor affecting the economic benefits of pastures. factor. The basic sequence of nutrition supply for dairy cows is: maintenance-production (growth or lactation)-reproduction. The nutrients required for reproduction are obtained on the basis of basically satisfying the physiological and production activities of dairy cows. Therefore, as the production level of dairy cows in some areas of my country It is becoming more and more difficult to fully meet the nutritional needs of high-yielding dairy cows. Common reproductive problems in high-yielding dairy herds, such as postpartum retained placenta, ovarian cysts, low conception rate, etc., also seriously affect the economic benefits of pastures.

At present, dairy cow premix products mainly meet the conventional needs of dairy cows' nutritional elements, and there are few types of functional premixes, especially compound premixes designed for dairy cow reproduction are still lacking. Modern animal nutrition studies have shown that there are many essential nutritional elements for dairy cows that are related to the reproductive performance of dairy cows, such as vitamin A, vitamin E, β-carotene, selenium, zinc, etc., but most of them are currently limited to one or two elements. Basic research on effects on reproductive performance. In view of the development status of my country's dairy industry and the increasingly prominent trend of high-yielding dairy cow reproduction, it is urgent to develop a compound premix product that can be industrially applied and can improve the reproductive level of dairy cows.

Contents of the invention

The object of the present invention is to provide a compound premix that improves the reproductive performance of dairy cows in order to solve the above problems.

The compound premix for improving the reproductive performance of dairy cows of the present invention comprises the following components:

1-3 parts of vitamin A, 1-10 parts of β-carotene, 12-20 parts of vitamin E, 10-100 parts of organic selenium, 20-30 parts of organic zinc and 837-956 parts of organic carrier, all of which are parts by weight.

Among them, vitamin A, β-carotene, vitamin E, selenium, and zinc are important nutritional factors necessary to maintain the normal growth and reproduction of dairy cows: vitamin A can promote fetal growth and follicular development; β-carotene can regulate hormone Secretion balance; vitamin E is an effective cellular antioxidant, which can improve the activity of immune cells; selenium is an indispensable substance for cellular antioxidation; zinc is a component of synthetic hormone enzyme system. The inventors have found in experiments that these substances have certain additive effects, and combined use has special biological effects: vitamin A and β-carotene can jointly improve the humoral immunity and cellular immune response of dairy cows; selenium, vitamin E, The combined use of β-carotene can greatly improve the antioxidant capacity of cells; the role of β-carotene and zinc can make hormone secretion more coordinated; After the optimized combination, the maximum synergistic effect can be exerted within the limited cost range, which can promote the improvement of ovarian function of dairy cows, protect the cells of follicles and uterus, thereby improving estrus behavior, increasing reproductive rate, reducing miscarriage, retained placenta, ovarian The occurrence of reproductive diseases such as cysts and metritis can effectively improve the reproductive performance of dairy cows.

In a preferred embodiment of the present invention, the above compound premix comprises the following components: 1-3 parts of vitamin A, 3-8 parts of β-carotene, 15-19 parts of vitamin E, 40-80 parts of organic selenium , 22-28 parts of organic zinc and 862-919 parts of organic vehicle.

The purpose of adding organic selenium and organic zinc in the compound premix of the present invention is to provide selenium source and zinc source required for reproduction. Because dairy cows in the peripartum period (3 weeks before delivery to 2 weeks after delivery) are in the period of immunosuppression, the demand for vitamin A, β-carotene, vitamin E, selenium, zinc and other nutrients increases, and the dry matter intake of dairy cows at this stage At the same time, due to the increase in milk production in the postpartum lactation peak stage of dairy cows, the nutritional requirements for relative reproduction also increase accordingly. Therefore, organic selenium and organic zinc with better biocompatibility and availability are added at this stage. It will significantly promote the health of dairy cows, improve reproductive performance, and reduce the occurrence of reproductive diseases and metabolic diseases. The present invention can select any existing organic selenium raw material, such as yeast selenium, compound amino acid selenium and methionine selenium, etc., and any organic zinc raw material, such as protein zinc, compound amino acid zinc, methionine zinc and one or more of zinc glycinate.

The organic carrier mentioned in the present invention refers to the powder commonly used in the premix industry, stable in nature, non-toxic and harmless to animals, used to carry the above-mentioned various effective substances, and does not chemically react with the above-mentioned effective substances . The organic carrier can be corn gluten powder, wheat flour, rice husk powder, bran, rice bran, defatted rice bran, soybean meal, corncob powder, barley flour, wheat bran and/or soybean hull powder, etc., wherein defatted rice bran. Since the organic carrier does not chemically react with the above-mentioned effective substances, but is only used to carry the above-mentioned various effective substances, each organic carrier can replace each other or be mixed into the composite premix. Its minimum dosage is based on the premix ingredients that can mix and absorb the above-mentioned various nutritional elements. According to industry routines, in order to simplify the operation, the total number of parts of the organic carrier and other components is 1000 parts. Therefore, the amount of the organic carrier in the present invention is calculated Make up to 1000 copies.

The main nutritional indicators of the compound premix for improving the reproductive performance of dairy cows in the present invention are shown in Table 1.

Table 1 Main nutritional indicators of compound premix Vitamin A IU/kg 500000-1500000 β-carotene mg//kg 10-100 Vitamin E IU/kg 6000-10000 Selenium mg/kg 10-100 Zinc mg/kg 3000-4500

The positive and progressive effect of the present invention is that the compound premix for improving the reproductive performance of dairy cows is developed by rationally configuring the content of vitamin A, β-carotene, vitamin E, selenium and zinc, which can fully meet the needs of dairy cows for reproduction. The needs of main vitamins and trace elements, reduce the incidence of postpartum retained placenta, endometritis, etc., strengthen the estrus performance of dairy cows, increase the conception rate and reproductive rate, maintain the health of dairy cows, improve the economic benefits of pastures, and control the cost at a certain level limit.

Detailed ways

The present invention is further illustrated below with examples, but the present invention is not limited thereto.

Examples 1-7

The components of each embodiment in table 2

Note: a is compound amino acid selenium, b is yeast selenium, c is methionine selenium, d is compound amino acid zinc, e is protein zinc, f is methionine zinc, g is glycine zinc.

The components in the above-mentioned Examples 1 to 7 are mixed uniformly in a mixer (the twin-shaft paddle type high-efficiency mixer SLHSJ0.2 produced by Jiangsu Muyang Group) according to a conventional method, and the compound prepreparation compound for improving the reproductive performance of dairy cows of the present invention is obtained. Compounding, all above are parts by weight.

The raw materials of each component in the above examples are feed grade, and all are conventional commercially available products.

Effect Example 1

The compound premix of Example 1 was used to carry out the test on the No. 7 Ranch in Shanghai. 44 healthy Chinese Holstein cows were selected and divided into a test group and a control group according to the principle of similar age, parity and delivery time, with 22 cows in each group. Tethered cattle house feeding, conventional feeding management feeding, three times a day, free drinking water.

Method of use: the test group and the control group use the same diet, and the test group additionally adds the dairy cow compound premix prepared in Example 1, the usage amount is 50 g/head·day, from 3 weeks before delivery to 100 days after delivery Before use, mix the compound premix evenly with the dairy cow’s ration, and add it to the trough every morning when feeding.

During the test period, the quality of estrus was observed, and the rate of one conception and the incidence of reproductive diseases were recorded. After classification and statistics of the data, SPSS10 software was used to analyze and chi-square test was carried out. The test data statistics are shown in Table 3. The test results showed that the postpartum retained placenta incidence of dairy cows in the test group was 13.6% lower than that in the control group (P<0.05), and the estrus performance was significant, the first conception rate increased by 31.8% (P<0.05), and the total conception rate increased by 9.1%.

The influence of table 3 embodiment 1 compound premix on dairy cow reproductive performance group Head count Number of breeding heads number of fetal heads total number of fetal heads afterbirth control group twenty two 15 8 13 7 test group twenty two 19 15 15 4

Effect Example 2

Use the composite premix of Example 3 to test in Shanghai Fengxian Guangming Dairy Farm, select 100 healthy Chinese Holstein dairy cows, and divide them into test group and control group according to the principle of age, parity, and delivery time, with 50 cows in each group . Raised in scattered cowsheds, fed with conventional feeding management, three times a day, free to drink water.

Method of use: the test group and the control group use the same diet, and the test group additionally adds the compound premix prepared in Example 3, the usage amount is 50 g/head·day, and it is used from 3 weeks before delivery to 100 days after delivery. , Mix the compound premix evenly with the dairy cow ration before use, and add it to the trough every morning when feeding.

During the test period, the postpartum delivery of dairy cows was observed, and the incidence of retained placenta was recorded. After classification and statistics of the data, the SPSS10 software was used to analyze and the chi-square test was performed. The statistics of the test data are shown in Table 4. The test results showed that the incidence of postpartum retained placenta of dairy cows in this field was reduced from 48.0% to 22.0%, and the effect was significant (P<0.05).

The impact of table 4 embodiment 3 compound premixes on the reproductive performance of dairy cows group Head count afterbirth control group 50 twenty four test group 50 11

Effect Example 3

The compound premix of Example 4 was used to test in Shanghai Zhuqiao Ranch, and 58 healthy Chinese Holstein cows were selected, and were divided into a test group and a control group according to the principle of age, parity, and delivery time, with 29 cows in each group. Tethered cattle house feeding, conventional feeding management feeding, three times a day, free drinking water.

Method of use: the test group and the control group use the same diet, and the test group additionally adds the compound premix prepared by Example 4, and the usage amount is 50 grams per head per day, and it is used from 3 weeks before delivery to 100 days after delivery. The compound premix is mixed with the cow's ration before use and added to the trough daily at morning feeding.

During the test period, the quality of estrus was observed, and the conditions of conception and reproductive diseases were recorded. After classification and statistics of the data, the SPSS10 software was used to analyze, and the chi-square test was performed. The test data statistics are shown in Table 5. The test results showed that the incidence of postpartum retained placenta of dairy cows in the test group was 24.1% lower than that of the control group (P<0.05). <0.05).

The influence of table 5 embodiment 4 compound premixes on the reproductive performance of dairy cows group Head count Number of breeding heads number of fetal heads afterbirth control group 29 25 20 9 test group 29 27 25 2

Effect Example 4

The compound premix of Example 2 was used to carry out the test in Shanghai No. 9 Ranch, and 36 healthy Chinese Holstein dairy cows were selected, and were divided into a test group and a control group according to the principle of age, parity, and delivery time, with 18 heads in each group. Tethered cattle house feeding, conventional feeding management feeding, three times a day, free drinking water.

Method of use: the test group and the control group use the same diet, and the test group additionally adds the compound premix prepared by Example 2, and the usage amount is 50 g/head. Day, used from 3 weeks before delivery to 100 days after delivery, using Mix the compound premix evenly with the cow's ration before feeding, and add it to the trough every morning when feeding.

During the experiment, the incidence of reproductive diseases such as estrus quality and retained placenta were observed, and the conception situation was counted in time. After classification and statistics of the data, SPSS10 software was used to analyze and chi-square test was performed. The test data statistics are shown in Table 6. The test results show that the breeding rate of the test group is 11.1% higher than that of the control group, and the first conception rate is 38.9% higher than that of the control group (P<0.05); the conception rate of the control group is 44.4%, while the conception rate of the test group reaches 61.1%, higher than that of the control group 16.7% (P<0.05), the effect is obvious; 1 dairy cow in the test group had retained placenta during delivery, while 3 dairy cows in the control group had dystocia.

The influence of table 6 embodiment 2 compound premixes on the reproductive performance of dairy cows group Head count Number of breeding heads number of fetal heads total number of fetal heads control group 18 15 4 8 test group 18 17 11 11

In summary: in each embodiment, the first estrus time of the cows in the test group is generally earlier than that of the control group, and the performance of estrus and the quality of mucus are significantly better than that of the control group, which shows that the compound premix for improving the reproductive performance of dairy cows in the present invention The feed helps to shorten the involution time of the postpartum uterus of dairy cows and restore reproductive function as soon as possible, so that the estrus cycle can come normally and the estrus performance can be enhanced. Among them, the greatly improved conception rate of the test group also benefited from the stable intrauterine environment, which enabled the smooth implantation of fertilized eggs.

From the test results of each embodiment, after the 3 weeks before the perinatal period to 100 days after delivery, every dairy cow added 50g of the compound premix of the present invention to improve the reproductive performance of dairy cows, which increased the number of dairy cows that can be bred, and Significantly increase the conception rate of one mating, and finally increase the total conception rate; reduce the incidence of postpartum retained placenta and endometritis; strengthen the estrus performance of dairy cows. The compound premix of the invention can fully meet the needs of dairy cows for main vitamins and trace elements related to reproduction, thereby maintaining the health of dairy cows, enhancing immunity, increasing reproductive rate, and finally improving economic benefits of pastures.

Claims (10)

1, a kind of compound premix that improves the cow reproduction performance, it is characterized in that, this compound premix comprises: 1-3 part vitamin A, 1-10 part beta carotene, 12-20 part vitamin E, the organic selenium of 10-100 part, 20-30 part organic zinc and 837-956 part organic carrier more than are weight portion.

2, compound premix as claimed in claim 1 is characterized in that, this compound premix comprises: 1-3 part vitamin A, 3-8 part beta carotene, 15-19 part vitamin E, the organic selenium of 40-80 part, 22-28 part organic zinc and 862-919 part organic carrier.

3, compound premix as claimed in claim 1 or 2 is characterized in that, described organic selenium is yeast selenium or amino acid selenium.

4, compound premix as claimed in claim 3 is characterized in that, described amino acid selenium is compound amino acid selenium or selenium methionine.

5, compound premix as claimed in claim 1 or 2 is characterized in that, described organic zinc is protein or amino-acid zinc.

6, compound premix as claimed in claim 5 is characterized in that, described amino-acid zinc is compound amino acid zinc, zinc methionine or glycine zine.

7, compound premix as claimed in claim 1 or 2, it is characterized in that described organic carrier is selected from one or more in corn protein powder, wheat time powder, powdered rice hulls, wheat bran, rice bran, defatted rice bran, big dregs of beans, maize cob meal, pearling cone meal, wheat bran and the soybean peel powder.

8, compound premix as claimed in claim 1 is characterized in that, this compound premix comprises: 1 part of vitamin A, 4 parts of beta carotenes, 12 parts of vitamin Es, 50 parts of compound amino acid selenium, 25 parts of compound amino acid zinc and 908 parts of wheat time powder.

9, compound premix as claimed in claim 1 is characterized in that, this compound premix comprises: 2 parts of vitamin As, 3 parts of beta carotenes, 19 parts of vitamin Es, 70 parts of yeast seleniums, 22 parts of protein zinc and 884 parts of corn protein powders.

10, compound premix as claimed in claim 1 is characterized in that, this compound premix comprises: 2 parts of vitamin As, 4 parts of beta carotenes, 16 parts of vitamin Es, 60 parts of yeast seleniums, 27.2 parts of protein zinc and 890.8 parts of pearling cone meals.