The use of prostaglandin applied in Bai Hui Acupoint on mare reproductive efficiency

Author:

Janini Ludimila Cardoso Zoccal1ORCID,Silva Maria Isabela Azeredo2ORCID,Rizzoto Guilherme1,Fonseca‐Alves Carlos Eduardo1,de Camillo Beatriz Lippe1ORCID,Aristizábal Viviana Helena Vallejo1,Negreiros Natalia Felix2,Corona Luiz Fernando Cintra3,Hara Eduardo3,Mendonça Victor Hugo3,Mendonça Heitor Vinicius3,Cipriano Rafael Silva2ORCID

Affiliation:

1. Department of Veterinary Surgery and Animal Reproduction, School of Veterinary Medicine and Animal Science São Paulo State University (UNESP) Botucatu Brazil

2. Catholic Salesian Auxilium University Center (UniSALESIANO) Araçatuba São Paulo Brazil

3. Central Araçá Reprodução Animal, Rodovia Marechal Rondon Araçatuba Brazil

Abstract

SummaryProstaglandin F (PGF) is one of the most frequently used drugs for pharmacologic manipulation of the oestrous cycle in mares. Among its roles, PGF induces luteolysis, leading to an early oestrus return, which reduces the dioestrous phase and the inter‐ovulatory intervals. Interestingly, mares are more sensitive to PGF than other domestic species, hence lower doses are used; even so, the side effects are still adverse and inconvenient for animals and breeders. Recent studies of acupuncture, a traditional Chinese medicine technique, have been performed as an alternative to decrease the PGF dose for mares. The efficacy described of applying lower doses of PGF at specific acupoints is similar to that obtained with the regular dose. Therefore, the objective of this study was to analyse the reproductive performance and characteristics of oestrus in embryo recipient and donor mares using different doses at the Bai Hui—an acupoint located on the dorsal midline, also known as ‘the point of one hundred meetings’, as its region of effect encompasses many nerve trunks, nerve endings and vascular networks—a useful veterinary acupuncture treatment for ovarian disorders. For this study, 76 Quarter Horse mares were randomly assigned to three experimental groups: Control (CTR)—Intramuscular (IM) administration of 5 mg PGF; Bai Hui 5 mg (BH5)—application of 5 mg at the Bai Hui acupoint; and Bai Hui 2.5 mg (BH2.5)—application of 2.5 mg at the Bai Hui acupoint. In the results, there were no differences regarding uterine oedema, pregnancy rate or body condition score among the groups. However, oestrous expression was lower (p < 0.001) in both BH groups compared with CTR. Lastly, the interval between application and ovulation was shorter in BH5 compared with CTR (p = 0.042). The results indicate BH5 and BH2.5 as viable alternatives to the IM administration.

Publisher

Wiley

Subject

Equine

Reference34 articles.

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2. Alvarenga M. Das C.&Moreira L.(2006)Avances en hormonoterápia de la yegua. Memorias V Seminario de reproducción en grandes animales. CGR Biotecnología Reproductiva Bogotá Colombia 20–22.

3. Acupunture in reproductive disorders;Araujo A.M.S.;Journal of Chemical Information and Modeling,2013

4. Acupuntura nas desordens reprodutivas (Revisão)

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