Transrectal ultrasound evaluation in tropical dairy goats: an indispensable tool for the diagnosis of reproductive disorders

Maia, A. L. R. S.; Brandão, F. Z.; Souza-Fabjan, J. M. G.; Veiga, M.O.; Balaro, M. F. A.; Facó, Olivardo; Fonseca, J. F. da

doi:10.1007/s11250-017-1496-0

Cited by 13 publications

(11 citation statements)

References 20 publications

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“…Multiple studies have confirmed the close relationship between the gut microbiota and PCOS ( Mammadova et al, 2020 ; Zhao et al, 2020 ). Follicular cysts were also discovered in sheep ( Christman et al, 2000 ; Palmieri et al, 2011 ) and goat ( Medan et al, 2004 ; Maia et al, 2018 ). To our knowledge, there has been no scientific report on the correlation between gut microbiota and follicular cyst in sheep.…”

Section: Discussionmentioning

confidence: 99%

Alterations of Serum Metabolites and Fecal Microbiota Involved in Ewe Follicular Cyst

et al. 2021

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While the interactions of the gut microbiome and blood metabolome have been widely studied in polycystic ovary disease in women, follicular cysts of ewes have been scarcely investigated using these methods. In this study, the fecal microbiome and serum metabolome were used to compare between ewes diagnosed with ovarian cystic follicles and ewes with normal follicles, to investigate alterations of the fecal bacterial community composition and metabolic parameters in relation to follicular cystogenesis. Ewes from the same feeding and management system were diagnosed with a follicular cyst (n = 6) or confirmed to have normal follicles (n = 6) by using a B-mode ultrasound scanner. Blood serum and fresh fecal samples of all ewes were collected and analyzed. The α-diversity of fecal microbiome did not differ significantly between follicular cyst ewes and normal follicle ewes. Three genera (Bacteroides, Anaerosporobacter, and Angelakisella) were identified and their balance differentiated between follicular cyst and normal follicle ewes. Alterations of several serum metabolite concentrations, belonging to lipids and lipid-like molecules, organic acids and derivatives, organic oxygen compounds, benzenoids, phenylpropanoids and polyketides, and organoheterocyclic compounds, were associated with the presence of a follicular cyst. Correlation analysis between fecal bacterial communities and serum metabolites indicated a positive correlation between Anaerosporobacter and several fatty acids, and a negative correlation between Bacteroides and L-proline. These observations provide new insights for the complex interactions of the gut microbiota and the host serum lipid profiles, and support gut microbiota as a potential strategy to treat and prevent follicular cysts in sheep.

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Section: Discussionmentioning

confidence: 99%

Alterations of Serum Metabolites and Fecal Microbiota Involved in Ewe Follicular Cyst

et al. 2021

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“…Transrectal ultrasonography (Mindray ® DP330-Vet, Shenzhen, China) was performed (according to Maia et al, 2018) ~ 45 days after the end of the reproductive season in all goats. During the exam, the following conditions were evaluated: HD, pregnancy (+) and (-), or with any reproductive disorder other than HD (i.e.…”

Section: Ultrasound Examsmentioning

confidence: 99%

“…However, both may be related to the occurrence of hydrometra (HD) (Duquesnel et al, 1992;Wittek et al, 1997;Batista et al, 2001;Netto et al, 2020). This disease has been associated with a decrease in reproductive efficiency in dairy goats, however, the exact cause of the disease is not elucidated yet (Maia et al, 2018;Menzies 2019).…”

Section: Introductionmentioning

confidence: 99%

Estrus induction in the non-breeding season is not associated with hydrometra in dairy goats

Maia

Souza-Fabjan

Rangel

et al. 2021

RSD

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This study aimed to compare the prevalence of hydrometra (HD) at the end of the reproductive season in goats subjected (HORM and LIGHT) or not (Control-HORM and Control-LIGHT) to estrus induction by either hormonal protocol or light program, respectively, in the non-breeding season. HORM-goats received intravaginal sponges (six days) associated with cloprostenol plus eCG 24 h before sponge removal while LIGHT-goats were submitted to 16 h of light and 8 h of darkness for 60 days. Pregnant goats from both groups gave birth at the early reproductive season and were evaluated by transrectal ultrasound ~45 days after the end of the season. The control goats (Control-HORM and Control-LIGHT) were also examined. There was no difference in the prevalence of HD between goats from HORM (8/31; 25.8%) compared to Control-HORM (4/26; 15.4%), or LIGHT (9/54; 16.7%) compared to Control-LIGHT (7/51; 13.7%), as well as between HORM and LIGHT groups. In conclusion, estrus induction with both hormonal and light protocols is not associated with the development of HD in dairy goats.

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“…In recent decades, obstetric ultrasound has been widely used in small ruminants, administered transcutaneously or transrectally, and with the aim of diagnosing pregnancy, quantifying fetus numbers, sexing, and fetal viability [7,[10][11][12]. Moreover, the use of this tool in goats and sheep has also been highlighted for the diagnosis of pathologies in ovaries and non-pregnant uteri [2,13,14], as well as for the andrological evaluation of testicles and sex glands [8,[14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

Ultrasound Diagnosis in Small Ruminants: Occurrence and Description of Genital Pathologies

Balaro

Cosentino

Ribeiro

et al. 2022

Veterinary Sciences

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This study reports the occurrence and appearance of various reproductive tract pathologies of small ruminants diagnosed using ultrasound. An eight-year retrospective study of collected ultrasound data was carried out in Rio de Janeiro State, Brazil from September 2012 to July 2020. A total of 3463 animals from 16 sheep flocks and 10 dairy goat flocks, raised under extensive and intensive management systems, respectively, were used in the study. All animals were submitted to an ultrasound examination of their reproductive tract. Data were analyzed using Fisher’s exact test (p < 0.05), to compare disorder frequencies within and between species. Ewes (4.14%) had fewer reproductive disorders than does (8.98%), while rams (43.63%) and bucks (56.25%) presented no significant differences. Hydrometra was the most frequent finding in does, represented by 50.98% of cases; while, in ewes, recent fetal loss (22.85%) and cystic endometrial hyperplasia (20.00%) were the most frequent. In bucks, the findings showed no clear differences; while, for rams, the most frequent finding was testicular microlithiasis (75.00%). Ultrasonography offers clinically useful information about the reproductive tract via the images it provides; knowledge of which makes it possible to improve the diagnosis, therapy, and prognosis of genital pathologies.

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Transrectal ultrasound evaluation in tropical dairy goats: an indispensable tool for the diagnosis of reproductive disorders

Cited by 13 publications

References 20 publications

Alterations of Serum Metabolites and Fecal Microbiota Involved in Ewe Follicular Cyst

Alterations of Serum Metabolites and Fecal Microbiota Involved in Ewe Follicular Cyst

Estrus induction in the non-breeding season is not associated with hydrometra in dairy goats

Ultrasound Diagnosis in Small Ruminants: Occurrence and Description of Genital Pathologies

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