Synchronous estrus and artificial insemination method for inducing batch production of Hu sheep

A mass production, ewe technology, applied in medical science, veterinary equipment, animal delivery, etc., can solve the problems of insignificant inhibitory effect of progesterone, easy to cause ovarian cysts, increased rate of embolism, etc., to achieve the goal of reducing ovarian cysts Occurrence, reduce the rate of vaginal inflammation, reduce the effect of throwing thrombus rate

Inactive Publication Date: 2020-10-09
HEBEI NORTH UNIV
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AI Technical Summary

Problems solved by technology

[0004] At present, the method of estrus synchronization in sheep tends to be diversified. The method of embedding a sponge vaginal suppository for 13 days + PMSG is mainly adopted. When the suppository is removed, each ewe is injected intramuscularly with 330IU PMSG. However, if the progesterone level in the body is high at this time, it will affect Ovulation, prone to ovarian cysts
If the embedding time is too long, it will easily cause vaginitis in ewes, and the rate of embolism loss will also increase; if the embedding time is too short, the inhibitory effect of progesterone will not be obvious, and the purpose of the same period will not be achieved.

Method used

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  • Synchronous estrus and artificial insemination method for inducing batch production of Hu sheep
  • Synchronous estrus and artificial insemination method for inducing batch production of Hu sheep
  • Synchronous estrus and artificial insemination method for inducing batch production of Hu sheep

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Effect test

Embodiment 1

[0026] This embodiment aims to provide a kind of estrus synchronism and artificial insemination method for inducing the mass production of Hu sheep, such as figure 1 As shown, the flow chart of the estrus synchronous and artificial insemination method for inducing the batch production of Hu sheep provided by this embodiment includes:

[0027] 1) FGA (flurprogesterone acetate) + PGF is used for simultaneous estrus treatment 2α (Prostaglandin)+PMSG method, FGA was placed deep in the vagina with a plug gun, the day of placement was recorded as day 0, and the plug was removed after 11 days of embedding.

[0028] 2) On the ninth day after vaginal suppository placement, each ewe was intramuscularly injected with PMSG 330IU and PGF 2α 0.1mg, to promote estrus and ovulation in ewes.

[0029] 3) After the thrombus was withdrawn on the 11th day, the test-estrus rams with strong sexual desire were selected and put into the treated ewes at a ratio of 1:10. Ewes stand still and accept c...

Embodiment 2

[0037] 1 Materials and methods

[0038] 1.1 Test animals

[0039] A total of 150 lake ewes aged 1.5 to 2.5 years old, weighing 45.23±5.56kg, healthy, above average in body condition, and free from reproductive diseases were selected (from a farm in Hebei Province (40°37′N, 115°8′E, altitude 680m)), were randomly divided into groups I, II, III, IV and V, with 30 rats in each group. The semen of Dorper rams (a farm in Hebei Province (40°37′N, 115°8′E, 680m above sea level)) was collected for breeding. The immunization and deworming procedures of house-feeding sheep were carried out according to the farm plan.

[0040] 1.2 Test drugs and materials

[0041] Vaginal suppository (FGA, Australia), specification: 45mg / piece of fluorine progesterone acetate; pregnant horse serum gonadotropin (PMSG, Ningbo Second Hormone Factory), specification: 1000IU / piece; prostaglandin (PGF2α , Ningbo Second Hormone Factory), specifications: 0.2mg / bottle; luteinizing hormone releasing hormone A ...

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Abstract

The invention discloses a synchronous estrus and artificial insemination method for inducing batch production of Hu sheep, and belongs to the technical field of efficient breeding of sheep. Accordingto the method provided by the invention, a hormone combination of FGA + PGF2 alpha + PMSG is used for inducing synchronous estrus of the Hu sheep, the vaginal plug burying time is set to be 11 days, and the hormone injection time is 2 days before vaginal plug removal. By adopting the method, the vaginal plug loss rate and the vaginal inflammation rate of ewe can be reduced, ovarian cyst is reduced, meanwhile, the semen deposition frequency and the semen deposition time point are determined, the operability is high, the cost can be saved, and the breeding benefit is improved.

Description

technical field [0001] The invention belongs to the technical field of high-efficiency breeding of sheep, and in particular relates to a method for inducing estrus synchronism and artificial insemination for batch production of Hu sheep. Background technique [0002] The breeding and raising of Hu sheep has a history of more than 800 years. It is named after the Taihu Lake Basin at the junction of Zhejiang and Jiangsu provinces in my country. Under the influence of natural environment and artificial selection, Hu sheep has been gradually bred into a sheep breed with many excellent germplasm characteristics. In 2000, 2006, 2008 and 2014, it was included in the "National Catalog of Livestock and Poultry Genetic Resources Protection" by the Ministry of Agriculture. Lambskin 1-2 days after delivery is famous for its unique wavy pattern formed by "S" bending, and enjoys the reputation of "Chinese soft gem" in the world. It has the characteristics of early sexual maturity, stron...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61D19/02A61D17/00
CPCA61D19/02A61D17/00
Inventor 王净于小杰兰金苹穆秀明张壁珠白园园
Owner HEBEI NORTH UNIV
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