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Method for promoting dual-calf production of beef cattle

A technology of beef cattle and gonadotropin, applied in the field of livestock breeding, can solve the problems of low reproductive rate and low conception rate, and achieve the effect of high efficiency, low cost and improved reproductive rate

Active Publication Date: 2016-01-20
INNER MONGOLIA AUTONOMOUS REGION ACAD OF AGRI & ANIMAL HUSBANDRY SCI
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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for promoting double calving of beef cattle, aiming to solve the problems of low reproductive rate and low conception rate of the existing beef cattle production cow population

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  • Method for promoting dual-calf production of beef cattle

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] The present invention starts with nutritional supplementation, lays the internal environment foundation for drug injection, and then realizes quantitative ovulation (2-3 eggs) and synchronous estrus through drug dosage control, and improves the conception rate and double calving ratio of cows as a whole. The purpose of the present invention is to promote individual calving, and then improve the reproductive rate of beef cattle groups.

[0027] The application principle of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] S101: Nutritional supplementation ...

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Abstract

The invention discloses a method for promoting dual-calf production of beef cattle. The beef cattle are fed with aphrodisiac fodder and are injected with pregnant mare serogan and cloprostenol and then hybridization is carried out. The aphrodisiac fodder feeding is carried out about 21 days; for the injection capacity of the pregnant mare serogan intramuscular injection, 350-international-unit pregnant mare seroga is injected per 100 kilograms; for the injection capacity of the cloprostenol intramuscular injection, 4-mg cloprostenol is injected for each cattle with the weight of 400 to 500 kilograms. According to the invention, with promotion of double calves by one cow, the reproduction rate of the cow group is improved; the proportion of the true oestrus of the cow after medication injection is improved, thereby improving the conception rate of the cow; with control of the drug dose, the basic germ cell number can be guaranteed and the number of implantation fetuses is controlled; and the trouble of tedious work of the cattle can be eliminated, and the technical operation is established based on the normal feeding management, so that no extra labor sum is increased. The provided method has advantages of low cost, high efficiency, and convenient operation and is suitable for large-scale popularization.

Description

technical field [0001] The invention belongs to the technical field of livestock breeding, and in particular relates to a method for promoting double calving of beef cattle. Background technique [0002] At present, in the practice of beef cattle production, the technology to promote beef cattle with twin calves is mainly to use embryo transfer technology to transfer more than two embryos to produce double calves. It is also possible that after the cow is artificially inseminated and mated, an embryo is transferred to produce double calves. Because this method requires embryo transfer, the number of recipient cow tissues is relatively large (1:10, about 5-7 usable embryos are provided for one donor cow, and about 10 recipient cows are needed for tissue, and only If 2-3 heads can be transplanted, other cows are a waste and delay the normal breeding), so the cost is relatively high. Moreover, the conception rate of embryo transfer is also relatively low. The conception rate ...

Claims

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Application Information

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IPC IPC(8): A01K67/02
CPCA01K67/02
Inventor 王峰栾庆江薛岭成立新赛音郭文华刘佳森
Owner INNER MONGOLIA AUTONOMOUS REGION ACAD OF AGRI & ANIMAL HUSBANDRY SCI
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