CN113424796A - Dairy goat mating method - Google Patents
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- CN113424796A CN113424796A CN202110866476.3A CN202110866476A CN113424796A CN 113424796 A CN113424796 A CN 113424796A CN 202110866476 A CN202110866476 A CN 202110866476A CN 113424796 A CN113424796 A CN 113424796A
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K67/00—Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
- A01K67/02—Breeding vertebrates
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
The invention provides a hybridization method of a milk goat, and relates to the technical field of livestock hybridization. The mating method comprises the following steps: (a) feeding the sheep before hybridization: feeding 40-60g of silage for each sheep independently every day 13-18 days before thrombus removal, and adding 40-60g of fresh silage for each sheep every 2-4 days; (b) putting and removing the embolus before sheep mating: putting the suppository for the ewe to be matched; (c) sheep mating: after the thrombus is removed, the ewes to be matched freely mate for 24-36 h. By scientifically selecting breeding and breeding, feeding before scientific breeding and strictly controlling the conditions of thrombus release and thrombus removal, the health condition of the sheep to be bred is improved, the estrus of the sheep is promoted, the breeding success rate of the sheep and the pregnancy number of the sheep are improved, and the birth rate and the survival rate of the sheep cubs in the later period are improved.
Description
Technical Field
The invention relates to the technical field of livestock breeding, in particular to a breeding method of a milk goat.
Background
The milk goat is a kind of dairy goat, and is a good variety bred and bred through high breeding, and the milk yield is very high. The goat milk has comprehensive nutrition and is an important raw material suitable for drinking and modern dairy industry. With the coming of the domestic goat milk consumption era, the dairy goat becomes another bright spot of breeding enrichment. The dairy goat has the advantages of less concentrate demand, wide feed source, high reproduction rate, strong adaptability and easy feeding
In the dairy goat breeding industry, a breeding method is of great importance, the selection of breeding time needs to be determined according to the climate and production technical conditions of the region, and factors such as weather conditions, forage storage conditions, disease prevention and treatment need to be considered. The breeding method has great influence on the survival rate of cubs, the health condition of adult sheep and the income of breeders. However, the existing breeding method is complicated, the personal experience is dominant, and an effective scientific basis is lacked. Therefore, the invention provides a scientific hybridization method of the milk goats.
Disclosure of Invention
In view of the above, the invention aims to provide a method for breeding dairy goats, which improves the breeding success rate of sheep and the pregnancy number of sheep, and the birth rate and the survival rate of sheep cubs in the later period.
The invention provides a hybridization method of a milk goat on one hand, which comprises the following steps:
(a) feeding the sheep before hybridization: feeding 40-60g of silage for each sheep independently every day 13-18 days before thrombus removal, and adding 40-60g of fresh silage for each sheep every 2-4 days;
(b) putting and removing the embolus before sheep mating: putting the suppository for the ewe to be matched;
(c) sheep mating: after the thrombus is removed, the ewes to be matched freely mate for 24-36 h.
Step (a)
The dairy goat needs to be scientifically and reasonably fed before mating so as to improve the physical health condition of the goat to be mated and provide a good nutritional basis for subsequent mating and breeding.
In a preferred embodiment of the invention, the sheep to be matched are fed with 50g of fresh and mildew-free silage per day only 15 days before the suppository is placed, 50g of fresh silage per sheep is added per 3 days, and feeding is stopped after the completion of matching.
Further, the process of raising sheep before mating further comprises: each sheep to be matched is fed with 1-3g, preferably 2g, of selenious acid VE every day.
Further, the process of raising sheep before mating further comprises: feeding each ram with an egg, 80-120g carrot, 40-60g corn and 40-60gg bean pulp independently every day; optionally, exercise is performed daily for 1-2 hours.
In a preferred embodiment of the invention, 1 egg, 100g carrot, 50g corn, 50gg soybean meal are fed individually per ram per day; exercise is required for 1-2 hours every day.
The sheep to be matched is reasonably raised before being matched, the physical health condition of the sheep to be matched can be enhanced before the suppository is put, the matching success rate of the sheep is improved, and the survival rate of the sheep cubs is increased.
Step (b)
The sheep suppository is prepared by putting a non-irritant and non-adhesive material serving as a progestational hormone carrier into the vagina of a ewe to promote the oestrus of the ewe and prepare for subsequent sheep mating. Preferably, the absorbent cotton suppository has small irritation to ewes and is not easy to cause vaginal inflammation.
The suppository removing of sheep refers to taking out the progestogen carrier put into the vagina of ewe.
Furthermore, when the suppository is put into the ewe to be matched, terramycin, penicillin and streptomycin can be selectively added.
In a preferred embodiment of the invention, about 10g of oxytetracycline are placed in 50 plugs.
Furthermore, the ewes to be matched are subjected to pregnancy test 12-13 days before thrombus removal, and then are injected with the chlorprostinol sodium injection (PG).
Preferably, before the suppository is put, whether the reproductive organs of each sheep to be matched are inflamed or not is checked, and the health status of the sheep is observed. When the thrombus is put down, each pasture needs to determine that the batch of contemporary sheep has no fetus, and the fetus accounts for not more than 1-2%; no clumping should occur during the thrombus release.
Preferably, the bred young ginseng and young sheep are placed in a small septate book for mating; artificial embolus releasing is not recommended to induce estrus mating, and only young adult ginseng mating sheep is limited.
And further, injecting 1ml of the chlorprostinil sodium injection into each sheep for 24-36 hours before thrombus removal.
In a preferred embodiment of the invention, a pregnancy test (B-mode, to determine whether the dairy goat has a fetus) is performed on day 12, and then PG is injected, wherein 1ml of PG is injected into each goat; injecting the hind leg muscle of the injection part by a disposable 5ml syringe (thin needle head); the injection time is 24-36 hours before the suppository is removed.
Further, the suppository setting time is 12-14 days; preferably, the aphrodisiac is injected upon withdrawal of the embolus.
Preferably, the suppository is removed by flushing with normal saline plus penicillin, and bleeding or adhesion is found to be treated with anti-inflammatory treatment, which is a serious single treatment. After recovery, the sheep are bred with other sheep in the same period.
The estrus-promoting medicine is preferably pregnant horse serum, promotes the oestrus of ewes, and facilitates the free mating of the ewes and the ewes in the later period.
Further, the unit concentration of the injection of the treprostinil sodium injection comprises two conditions:
(1) injecting 330 units of each head of the first-fetus sheep;
(2) the sheep secreting milk, the second-born sheep and the sheep secreting milk and the second-born sheep are injected with 250 units of the injection.
Injection site tail root intramuscular injection suggested a disposable 5ml syringe (thin needle).
In a preferred embodiment of the invention, the suppository is released on day 1, the pregnancy check (B-ultrasonic) is performed on day 12, and the suppository is removed at night 19: 00-20: 00 on day 13.
Step (c)
Further, in the free mating process, the number ratio of the ewes to the rams is 3-5: 1
The invention adopts the technical scheme and has the following beneficial effects:
the invention provides a method for breeding dairy goats, which comprises the steps of scientifically selecting breeding and breeding, scientifically feeding the dairy goats before breeding, strictly controlling conditions of thrombus removal and thrombus removal, improving the health condition of the goats to be bred, promoting oestrus of the goats, improving the breeding success rate and the pregnancy number of the goats, and improving the birth rate and the survival rate of later-stage sheep cubs.
Detailed Description
Unless defined otherwise, all scientific and technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Materials, reagents and the like used in the following examples are commercially available unless otherwise specified.
The invention is described in detail below with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.
Example 1
A dairy goat mating method comprises the following steps:
step 1:
1.1, feeding the sheep before hybridization: feeding each sheep with 50g of fresh silage without mildew 15 days before suppository placing, adding 50g of fresh silage to each sheep 3 days, and stopping feeding after blending;
1.2, feeding 2g of selenious acid VE to each sheep to be matched every day;
1.3, feeding the stud ram: one egg, 100g of carrot, 50g of corn and 50g of soybean meal are fed to each ram every day, and the rams are required to exercise for 1-2 hours every day.
Step 2:
2.1, adding a proper amount of oxytetracycline (about 10g for 50 suppositories) when the suppositories are placed in the matched sheep;
2.2, performing pregnancy test (B ultrasound) and then injecting PG (Clonoprost sodium injection) on day 12, and injecting 1ml of PG into each sheep; injecting the hind leg muscle of the injection part by a disposable 5ml syringe (thin needle head); the injection time is 24 to 36 hours before the suppository is removed;
2.3, removing the suppository at night of 19: 00-20: 00 on day 13; injecting pregnant mare serum when removing thrombus;
unit concentrations of injected PG include two cases: (a) injecting 330 units of each head of the first-fetus sheep;
(b) 250 units of injection is injected into the lactating sheep, the second-born sheep and each sheep;
the injection site was injected intramuscularly at the tail root using a disposable 5ml syringe (thin needle).
And step 3:
and (4) continuously keeping 3-5 ewes and 1 ram for 24-36 hours on day 15 (after the suppository is removed for 36 hours), and freely mating.
Example 2
A method for breeding a milk goat, which is different from example 1 in that step 1.2 is not included.
Example 3
A method for breeding a milk goat, which is different from example 1 in that step 1.3 is not included.
Example 4
A method for breeding milk goats is different from the method in example 1 in that about 10g of oxytetracycline is placed in 100 suppositories in step 2.1.
Example 5
A method for breeding a dairy goat, which is different from the method in the embodiment 1, in the step 2.3, pregnant horse serum is not injected when removing the suppository.
Example 6
A method for breeding milk goats is different from the method in example 1 in that in step 2.3, the unit concentration of PG injection is 250 units.
Example 7
The method for breeding the milk goats is different from the method in the embodiment 1 in that in the step 3, the number ratio of the ewes to the rams is 5-10: 1.
comparative example
A mating method of milk goats comprises the following steps:
(1) the mating method comprises the following steps: freely mating, mixing the male sheep with the female sheep group, and mating the male sheep with the female sheep in estrus by self, wherein the ratio of the male sheep to the female sheep is 1: 5.
(2) Artificial assisted mating: the female sheep in heat is selected and put in a separate hurdle or other places to mate with the appointed stud ram.
The feeding conditions for sheep were the same as in example 1.
Examples of the experiments
According to the breeding method of the examples 1-7 and the comparative example, the suitable conditions are selected for sheep breeding, different breeding methods are counted, the health condition of ewes (whether vaginitis exists or not is taken as a standard), the sheep breeding success rate (based on the conception rate of ewes), the sheep baby delivery success rate and the baby survival rate of the ewes within 1 month are counted. The results are shown in Table 1.
TABLE 1
| Grouping | Prevalence of ewe vaginitis (%) | Ewe white body rate (%) | Success rate of delivery (%) | Survival rate of baby (%) |
| Example 1 | 1 | 95 | 98 | 99 |
| Example 2 | 1.1 | 94 | 98 | 98 |
| Example 3 | 1 | 92 | 97 | 98 |
| Example 4 | 5 | 88 | 95 | 97 |
| Example 5 | 1.2 | 89 | 96 | 98 |
| Example 6 | 1.1 | 90 | 98 | 97 |
| Example 7 | 0.9 | 83 | 98 | 97 |
| Comparative example | 3 | 60 | 95 | 94 |
As can be seen from the results in Table 1, the better hybridization method of example 1 is finally obtained by adjusting the conditions in each step of the hybridization method, compared with other examples 1 and comparative examples, the better hybridization method has obvious advantages, and the success rate of hybridization of sheep and the number of fetuses of sheep, as well as the birth rate and the survival rate of sheep cubs in the later period are improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and the like that are within the spirit and principle of the present invention are included in the present invention.
Claims (8)
1. The method for breeding the milk goats is characterized by comprising the following steps of:
(a) feeding the sheep before hybridization: feeding 40-60g of silage for each sheep independently every day 13-18 days before thrombus removal, and adding 40-60g of fresh silage for each sheep every 2-4 days;
(b) putting and removing the embolus before sheep mating: putting the suppository for the ewe to be matched;
(c) sheep mating: after the thrombus is removed, the ewes to be matched freely mate for 24-36 h.
2. The method of claim 1, wherein step (a) further comprises: each sheep to be matched is fed with 1-3g of selenious acid VE every day.
3. The method of claim 1, wherein step (a) further comprises: feeding 1-2 eggs, 80-120g carrot, 40-60g corn and 40-60gg bean pulp separately for each ram every day; optionally, exercise is performed daily for 1-2 hours.
4. The method as claimed in claim 1, wherein in step (b), the ewe to be matched is tested for pregnancy 12-13 days before the thrombus is released, and then injected with the injection of the treprostinil sodium.
5. The method as claimed in claim 4, wherein in the step (b), 1ml of the loraprost sodium injection is injected into each sheep for 24-36 hours before thrombus removal.
6. The method of claim 4 or 5, wherein in the step (b), the unit concentration of the injection of the treprostinil sodium is two cases:
(1) injecting 330 units of each head of the first-fetus sheep;
(2) the sheep secreting milk, the second-born sheep and the sheep secreting milk and the second-born sheep are injected with 250 units of the injection.
7. The method according to claim 1, wherein in the step (b), the thrombolysis time is 12-14 days; preferably, the aphrodisiac is injected upon withdrawal of the embolus.
8. The method according to claim 1, wherein in the step (c), the number ratio of the ewes to the rams in the free mating process is 3-5: 1.
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| CN101361471A (en) * | 2007-08-06 | 2009-02-11 | 黑龙江省农业科学院畜牧研究中心 | High frequency efficient breeding control technique of meat sheep |
| CN105660527A (en) * | 2016-01-15 | 2016-06-15 | 吉林农业大学 | Three-yield-in-two-year multi-lamb technology for mutton sheep in farming-pasturing interlaced area |
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