Document Detail


Early fetal sexing of Saanen goats by use of transrectal ultrasonography to identify the genital tubercle and external genitalia.
MedLine Citation:
PMID:  17472458     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: To define the optimum period for sexing of Saanen goat fetuses by use of transrectal ultrasonography. ANIMALS: 82 Saanen goats pregnant with 124 fetuses. PROCEDURES: Fetal sexing was performed on the basis of the final location of the genital tubercle or identification of external genitalia. In experiment 1, fetuses (n = 78) were monitored every 48 hours from days 40 to 60 of gestation, whereas for experiment 2, 46 fetuses were examined only once between days 47 and 77 of gestation. RESULTS: For experiment 1, accuracy of fetal sexing was 20 of 20 (100%) for a single fetus, 39 of 42 (92.8%) for twin fetuses, and 10 of 16 (62.5%) for triplet fetuses. Diagnostic accuracy was significantly lower for triplet fetuses than that for single or twin fetuses. Final location of the genital tubercle was detected between 45 and 55 days of gestation (mean +/- SEM, 48.9 +/- 1.8 days). For experiment 2, accuracy of fetal sexing for a single fetus (24/24 [100%]) was significantly higher than the accuracy for twin fetuses (16/22 [72.7%]). Considering all fetuses that were born, accuracy of diagnosis was 69 of 78 (88.4%) for experiment 1 and 40 of 46 (86.9%) for experiment 2. Accuracy did not differ significantly between experiments. CONCLUSIONS AND CLINICAL RELEVANCE: Real-time ultrasonography after day 55 of gestation is a suitable method for determination of sex of Saanen goat fetuses by observation of the genital tubercle or identification of external genitalia.
Authors:
Maico Henrique Barbosa Santos; Erica Paes Barreto Xavier Moraes; Filipe Queirós Gondim Bezerra; Roseana Tereza Diniz Moura; Fabiola Paula-Lopes; Jairo Pereira Neves; Paulo Fernandes Lima; Marcos Antonio Lemos Oliveira
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Publication Detail:
Type:  Evaluation Studies; Journal Article    
Journal Detail:
Title:  American journal of veterinary research     Volume:  68     ISSN:  0002-9645     ISO Abbreviation:  Am. J. Vet. Res.     Publication Date:  2007 May 
Date Detail:
Created Date:  2007-05-02     Completed Date:  2007-06-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375011     Medline TA:  Am J Vet Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  561-4     Citation Subset:  IM    
Affiliation:
Laboratório de Biotécnicas da Reprodução, Departamento de Medicina Veterinária da Universidade Federal Rural de Pernambuco, Av. Dom Manoel de Medeiros s/n, Dois Irmãos, CEP 52171 900 Recife, Pernambuco, Brazil.
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MeSH Terms
Descriptor/Qualifier:
Animals
Female
Fetal Development
Genitalia / embryology*,  ultrasonography*
Goats / embryology*
Male
Pregnancy
Sex Determination (Analysis) / methods,  veterinary*
Ultrasonography, Prenatal / veterinary*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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