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Treatment method for anestrus sows and endometritis after applying timed artificial insemination technology

A technology of endometritis and timing insemination, applied in the field of livestock breeding, can solve problems such as estrogen insensitivity of sows, endometritis of sows, ovarian failure, etc.

Inactive Publication Date: 2015-06-10
NINGBO SANSHENG PHARMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, at present, in the process of implementing this technology, the use of blood gonadotropin or blood gonadotropin and chorionic gonadotropin compound preparations to promote follicle development and induce estrus in sows often results in 5-20% of the There are three main reasons why sows are not in estrus or lack of estrus. The first is that the sow is not sensitive to estrogen, the second is that the sow has endometritis, and the last is ovarian failure

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] In this embodiment, the object is a body-mature gilt, and the application method is as follows:

[0038] Select gilts aged 250 to 280 days and weighing 140 to 160 kg, regardless of whether they have asexual cycles, rush from the gilts to the positioning pen in the breeding room, and first dissolve tetraenylestrone in vegetable oil to reach 1.6 per ml. mg, add 10 ml of tetraenylestrone vegetable oil solution to the feed and feed one sow every day for 15 consecutive days. 42 hours after stopping feeding, inject 800 units of blood gonadotropin intramuscularly, and inject 100 micrograms of GnRH intramuscularly 80 hours after using gonadotropin. At the same time of injecting GnRH, pay attention to observe the estrus. 1, 2, 4 and 8 mg of estradiol benzoate were injected intraperitoneally. 24 hours and 40 hours after the use of GnRH, insemination was performed once respectively, and the pregnancy status of non-estrous or anestrus sows and the uterine discharge within 7 days aft...

Embodiment 2

[0042] In this embodiment, the object is a weaned multiparous sow, and the application method is as follows:

[0043] Select weaned sows with a healthy lactation period of 21-25 days. 24 hours after weaning, inject 600 units of gonadotropin intramuscularly, and inject 100 micrograms of GnRH intramuscularly 72 hours after using gonadotropin. While injecting GnRH, pay attention to observe the estrus In the case of non-estrus or anestrus, 1, 2, 4 and 8 mg of estradiol benzoate were injected intramuscularly at the same time. 24 hours and 40 hours after the use of GnRH, insemination was performed once respectively, and the pregnancy status of non-estrous or anestrus sows and the uterine discharge within 7 days after mating were observed. After 30 days, B-ultrasound was checked once again to diagnose the pregnancy situation, and the test results are shown in Table 2.

[0044] Table 2: Reproductive performance and clinical manifestations of anestrus or anestrus sows using results

...

Embodiment 3

[0047] In the present embodiment, the object is a non-estrus gilt, and the application method is as follows:

[0048] For gilts aged 250-280 days without estrus, 24 hours after intramuscular injection of cloprostinol sodium, intramuscular injection of 800 units of blood gonadotropin, intramuscular injection of 100 micrograms of GnRH 72 hours after the use of blood gonadotropin, and injection of GnRH At the same time, pay attention to observe the estrus, for those who are not in estrus or lack of estrus, at the same time, inject estradiol benzoate 4 or 8 mg intramuscularly. 24 hours and 40 hours after the use of GnRH, insemination was performed once respectively, and the pregnancy status of non-estrous or anestrus sows and the uterine discharge within 7 days after mating were observed. After 30 days, B-ultrasound was checked once again to diagnose the pregnancy situation, and the test results are shown in Table 3.

[0049] Table 3: Reproductive performance and clinical present...

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Abstract

The invention provides a treatment method for anestrus sows and endometritis after applying a timed artificial insemination technology. The treatment method comprises the following steps: (1) synchronizing the sexual cycle of the sows; (2) promoting follicular development of the sows and inducing oestrus synchronization; (3) promoting ovulation synchronization of the sows; (4) treating the anestrus sows: injecting estradiol benzoate into muscles of non-anestrus or anestrus sows; (5) performing timed artificial insemination: after medicaments for promoting folliclematurity and ovulation are applied, performing timed artificial insemination on the non-anestrus sows or the sows which are not obvious in oestrus; (6) treating endometritis: simultaneously applying antibiotic and estradiol benzoate to the mattery sows subjected to hybridization, and then applying cloprostenol sodium. According to the treatment method for the anestrus sows and the endometritis after applying the timed artificial insemination technology, sow resources are fully used, the mortality of multiparous sows is effectively reduced, and the utilization rate of replacement gilts is increased.

Description

technical field [0001] The invention relates to an application technology in the field of livestock reproduction, in particular to a method for treating anestrous sows and endometritis after applying the timing insemination technology for sows. Background technique [0002] For nearly half a century, sow estrus synchronization and timed insemination technology have been important research directions in the field of livestock reproduction. Specifically: gilts use tetraenestrone to prevent the development of sow follicles and synchronize the sexual cycle, and then use blood gonadotropin or blood gonadotropin and chorionic gonadotropin compound preparations to promote sow follicle development and induce Estrus, then use chorionic gonadotropin, or luteinizing hormone, or gonadorelin (GnRH) and the like to promote the final maturation and ovulation of follicles, and then timing insemination; Hormone or the compound preparation of blood gonadotropin and chorionic gonadotropin to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61D19/00
CPCA61D19/02A61D7/00
Inventor 翁士乔裘永浩张宏崔贞亮
Owner NINGBO SANSHENG PHARMA
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