Comparison of two methods of synchronization of estrus in brown brocket deer (Mazama gouazoubira)

Zanetti, Eveline dos Santos; Polegato, Bruna Furlan; Duarte, José Maurício Barbanti

doi:10.1016/j.anireprosci.2009.05.010

Cited by 20 publications

(28 citation statements)

References 42 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Initially, on a random day of the estrous cycle, the hinds were divided into two groups (n = 6): (i) eCG Treatment, in which the hinds received a single intravaginal device containing 0.33 g of progesterone (CIDR-type T; Controlled Internal Drug Release; Pfizer, USA) for eight days [6], followed by 0.25 mg i.m. injection of estradiol benzoate (EB) (0.25 mL Estrogin; Farmavet Produtos Veterinários Ltda, Brazil) [33,34] on the same day as the device was inserted (to induce atresia in ovarian follicles) [20], 700UI i.m.…”

Section: Methodsmentioning

confidence: 99%

“…Data from endocrinology studies, based on progestogen data, indicate a mean luteal phase duration of 24.6 ± 1.4 day and a mean interluteal phase duration of 1.7 ± 0.1 day [3]. It is also one of the most studied species regarding the endocrinology of the estrous cycle and pregnancy [3] and the development of reproductive biotechnologies, such as estrus synchronization [5,6] and superovulation [5,7]. …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparing two different superovulation protocols on ovarian activity and fecal glucocorticoid levels in the brown brocket deer (Mazama gouazoubira)

Zanetti¹,

Munerato²,

Cursino³

et al. 2014

Reprod Biol Endocrinol

View full text Add to dashboard Cite

BackgroundStress is a limiting factor in assisted reproduction in wild animals maintained in captivity. However, the knowledge of assisted reproduction techniques for wild animals is useful for future in situ and ex situ conservation programs. Thus, this study evaluated the ovulation rate, presence of functional corpora lutea and fecal glucocorticoid levels following treatments promoting superovulation in captive brown brocket deer.MethodsThe crossover design used six hinds, allocated to two groups (n = 6): eCG Treatment, CIDR for 8 days, followed by 0.25 mg of EB on day 0, 700 IU of eCG on day 4 following device insertion and 265 mug of PGF2alfa on day 8; and FSH Treatment, CIDR for 7.5 days, followed by 0.25 mg of EB on day 0, 130 mg of FSH in 8 equal doses and 265 mug of PGF2alfa on day 7.5. Induced adrenal activity and treatment efficacy were evaluated by corpora lutea (CL) counts and fecal glucocorticoid and progestin concentration (ng/g feces) analyses for five different phases: Pre, two days before treatment; Early, first four days of treatment; Late, last four days of treatment; Total, entire treatment period; and Post, five days posttreatment.ResultseCG Treatment resulted in the highest number of CL (P lower than 0.05). There was no significant difference for fecal glucocorticoid concentrations in five different time periods between the treatments; however Pre fecal glucocorticoid concentrations (90.06+/−19.64) were significantly different from Late (200.76+/−26.39) within FSH Treatment. The mean fecal progestin concentration and mean ovulation rate were higher in eCG Treatment (4293.69+/−769.47, 7.0+/−1.8) than in FSH Treatment (1571.26+/−240.28, 2.6+/−0.8) (P lower than or equal to 0.05).ConclusionsAlthough the eCG Treatment induced a good superovulatory response, with the formation of functional corpora lutea, we cannot yet affirm that we have established a suitable protocol for induction of SOV in the species M. gouazoubira because approximately 65% of the deer showed premature regression of the corpora lutea. Moreover, multiple FSH applications in FSH Treatment resulted in a low ovulation rate and induced an increase in fecal glucocorticoid levels.

show abstract

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparing two different superovulation protocols on ovarian activity and fecal glucocorticoid levels in the brown brocket deer (Mazama gouazoubira)

Zanetti¹,

Munerato²,

Cursino³

et al. 2014

Reprod Biol Endocrinol

View full text Add to dashboard Cite

show abstract

“…Muntjac can be housed in groups of 5–7. To better estimate the time of conception we have incorporated cloprostenol administration in 2 doses (265 mcg IM, eleven days apart) for estrus synchronization, as per Zanetti et al 3 , once female muntjac reach sexual maturity. For mating, 1 male can be housed with 1 to 6 females.…”

Section: Reeves’ Muntjac Deermentioning

confidence: 99%

Aspects of the husbandry and management of captive cervids

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Durante este período, o comportamento do macho foi observado quanto à ocorrência de agressividade, aproximação do operador e aceite de alimento diretamente da mão do operador. Com o intuito de facilitar a detecção e otimizar a utilização de todo o período de estro das fêmeas (duração aproximada de 2,2±0,3 dias a cada 24,7±1,2 dias em M. gouazoubira - Pereira et al 2006), optou-se por realizar a manipulação farmacológica do ciclo estral com o uso de 250μg de cloprostenol sódico (1,0mL Ciosin ® -Intervet/Schering Plough Coopers ® , Brasil), por via intramuscular (Zanetti et al 2010). O fármaco foi administrado a cada 11 dias até a detecção de quatro estros em cada uma das espécies.…”

Section: Desvio Lateral Do Pênis Para Uma Vagina Artiϐicial (Fedl)unclassified

“…O fármaco foi administrado a cada 11 dias até a detecção de quatro estros em cada uma das espécies. As fêmeas foram monitoradas a cada seis horas para a detecção do início (ocorrido entre 48-72 horas após a aplicação em M. gouazoubira -Zanetti et al 2010) e ϐim do estro (ocorrido entre 86-109 horas após a aplicação em M. gouazoubira - Zanetti et al 2010). Também durante o período de estro, foram realizadas coletas de urina das fêmeas.…”

Section: Desvio Lateral Do Pênis Para Uma Vagina Artiϐicial (Fedl)unclassified

Avaliação de dois métodos para condicionamento e coleta de sêmen em quatro espécies do gênero Mazama

2012

View full text Add to dashboard Cite

Pesq. Vet. Bras. 32(7):658-662, julho 2012 658 RESUMO.-O desenvolvimento de técnicas não invasivas para a obtenção de sêmen de cervídeos facilita a criação de bancos genômicos, que são importantes instrumentos para a conservação ex situ e in situ. Este trabalho teve como objetivo criar uma metodologia não-invasiva de coleta de sêmen e comparar duas técnicas de coleta em quatro espécies do The development of noninvasive techniques for obtaining semen from deer facilitates the creation of genome banks, which are important tools for ex situ and in situ conservation. This study aimed to establish a noninvasive method of semen collection and compare two techniques of collection in four species of the genus Mazama: M. americana, M. gouazoubira, M. nana and M. nemorivaga. To achieve this, 6 males (M) and 2 females (F) of the species M. Americana, 3M and 2F of M. gouazoubira, 1M and 1F of M. nana and 2M and 1F of M. nemorivaga were used. For each technique tested, a period of habituation to animal handling was conducted; then, the two conditioning techniques and collection were evaluated. In the ϐirst, a female in estrus was used with lateral deviation of the penis to an artiϐicial vagina (FEDL), yielding collection from 50% of the males (100% from M. gouazoubira and 50% from M. americana), with no ejaculate from the remaining species. In the second technique, using a taxidermized dummy with urine from females in estrus (MUFE), no semen collection was possible. During all stages, male behavior was observed regarding the time of interest and approximation, the "Flehmen" response, the act of snifϐing or licking, exposure of the penis, erection, number of false mounts, attempts at copulation and the occurrence of aggression between the deer.

show abstract

Comparison of two methods of synchronization of estrus in brown brocket deer (Mazama gouazoubira)

Cited by 20 publications

References 42 publications

Comparing two different superovulation protocols on ovarian activity and fecal glucocorticoid levels in the brown brocket deer (Mazama gouazoubira)

Comparing two different superovulation protocols on ovarian activity and fecal glucocorticoid levels in the brown brocket deer (Mazama gouazoubira)

Aspects of the husbandry and management of captive cervids

Avaliação de dois métodos para condicionamento e coleta de sêmen em quatro espécies do gênero Mazama

Contact Info

Product

Resources

About