Farmacopuntura utilizando os acupontos Hou Hai e Bai Hui em protocolos de sincronização de estro em cabras

Abstract

RESUMO Avaliou-se a eficiência da administração de subdoses de eCG nos acupontos Bai Hui e Hou Hai em protocolos de sincronização de estro em cabras. Na primeira etapa, 57 cabras foram distribuídas aleatoriamente em quatro tratamentos: T1- 300UI de eCG intramuscular (IM); T2- 60UI de eCG no acuponto Hou Hai; T3- 60UI de eCG no acuponto Bai Hui e T4- 60UI de eCG IM; e na segunda etapa, 28 cabras foram distribuídas aleatoriamente em três tratamentos: T1- 300UI de eCG IM; T2- 30UI de eCG no acuponto Bai Hui e T3- 30UI de eCG IM. Ao final do tratamento hormonal, as cabras foram monitoradas para detecção do estro, realização das coberturas e avaliação do comportamento reprodutivo. Os dados foram submetidos à análise de normalidade, seguida dos testes estatísticos adequados para cada variável. Na primeira etapa experimental, obteve-se maior duração de estro nas cabras do T1 (P=0,009). Na segunda etapa experimental, obteve-se maior número de animais em estros no T1 (P=0,03). As demais variáveis para ambas as etapas não sofreram influência dos tratamentos (P>0,05), demonstrando que a administração de subdoses de eCG nos acupontos Bai Hui e Hou Hai foi eficiente para sincronizar o estro.

Use of hormonal subdoses applied in Bai Hui acupuncture in estrus synchronization protocols for goats

“…This differs from the average of 70.9 h between sponge removal and end of estrus reported by Souza et al (2011), using 100 IU of eCG for each 10 kg of body weight. Our results also differ from those of Araújo (2016), who recorded a 68.2 ± 38.5 h interval when applying 60 IU of eCG at the Bai Hui acupoint in goats. Despite differences in the interval between sponge withdrawal and beginning/ end of estrus reported in the previous studies and in the present study, the duration of estrus (27.1 ± 11.2 h), is within physiological norms for the caprine species.…”

“…Martinez et al (2007) administered 20% of the recommended dose of cloprostenol sodium at the Bai Hui acupoint in sheep, and efficiently induced estrus in 66.7% of animals. Similarly, Araújo (2016) reduced the recommended dose of eCG by 20%, applied it at the Bai Hui acupoint, and induced estrus in 80% of the goats, similar to the induction rate in the control group, which received 100% of the dose by IM injection.…”

“…Maffili et al (2006), using 250 IU of eCG in goats, reported an interval between sponge removal and estrus initiation of 35.0 ± 5.89 h. Maia Júnior et al (2009), also using 250 IU of eCG, reported an average interval of 31.53 ± 2.81 h. Similarly, Nava-Trujillo et al (2010) reported an average of 32.54 ± 3.00 h using 500 IU of eCG. Araújo (2016) reported an interval between sponge removal and estrus onset of 40.8 ± 27.7 h when applying 60 IU of eCG at the goats Bai Hui acupoint.…”

“…These hormones are most commonly administered by intramuscular injection. However, other routes of administration have been tested, including injection into the Bai Hui (MARTINEZ et al, 2007;ARAÚJO, 2016), Hou Hai (ARAÚJO, 2016;CARDOSO et al, 2018), B22 and B23 (KÜÇÜKASLAN et al, 2015) acupoints.…”

“…According to Altman (2006), the acupoint is stimulated via pressure created by presence of the drug when it is deposited in the local subcutaneous tissue, potentiating the drug's pharmacological effect. Other studies have sought to define minimal effective doses when hormones are administrated by different routes in the goat estrus synchronization protocols (FONSECA et al, 2005;ARAÚJO, 2016;CARDOSO et al, 2018) and according to Luna et al (2006) the injection of reduced doses into acupoints produces effects of similar strength and duration to those produced by the conventional dose, while causing fewer side effects.…”