Loading...
Publication
Pseudogestações Em Cabras De Aptidão Leiteira
| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 527.49 KB | Adobe PDF |
Authors
Advisor(s)
Abstract(s)
As pseudogestações ou hidrometras têm vindo a ganhar relevo no panorama reprodutivo de caprinos de aptidão leiteira, por se tratar de uma das principais causas de infertilidade temporária nestes animais. Sendo apelidada de uma doença silenciosa, por apresentar sinais clínicos pouco específicos e facilmente confundíveis com animais gestantes, faz com que o seu diagnóstico sem recurso a exames complementares seja extremamente difícil. O desenvolvimento de técnicas de ultrassonografia aplicadas por profissionais experientes nestes animais, veio facilitar o seu diagnóstico e ao mesmo tempo permitir o tratamento precoce da patologia.
O presente estudo teve como objetivo estudar a prevalência de pseudogestações em rebanhos de caprinos intervencionados, assim como, tentar perceber o mecanismo hormonal implicado.
Para o estudo foram realizados diagnósticos de gestação com recurso a ultrassonografia e medidos os teores de progesterona (P4) e de glicoproteínas associadas à gestação (PAGs), sendo ainda realizado um questionário aquando esta recolha.
A prevalência global registada foi de 3,93%, o limite mínimo de P4 foi de 0,44 ng/ml e o máximo de 18,05 ng/ml no grupo de animais com a patologia. Apenas 3 animais com a doença foram identificados aquando da reinspecção ecográfica num novo controlo reprodutivo. Animais com maior número parições tem menores concentrações de PAGs (p < 0,05) em circulação. O fator com maior significância registado (p < 0,01), foi o grupo em estudo (gestantes, não gestantes e pseudogestantes), quando analisadas as concentrações P4 e PAGs.
Pseudopregnancies or hydrometras have gained relevance in the reproductive panorama of dairy goats, as they are one of the main causes of temporary infertility in these animals. Being called a silent disease, as it presents clinical signs that are not very specific and easily confused with pregnant animals, it makes its diagnosis without resorting to additional tests extremely difficult. The development of ultrasound techniques applied by experienced professionals in these animals has facilitated their diagnosis and at the same time allowed early treatment of the pathology. The present study aimed to study the prevalence of pseudopregnancies in intervention goat herds, as well as trying to understand the hormonal mechanism involved. For the study, pregnancy diagnoses were carried out using ultrasound and measurements of the levels of progesterone (P4) and pregnancy-associated glycoproteins (PAGs), and a questionnaire was also carried out during this collection. The global prevalence recorded was 3,93%, the minimum P4 limit was 0,44 ng/ml and the maximum was 18,05 ng/ml in the group of animals with the pathology. Only 3 animals with the disease were identified after ultrasound reinspection in a new reproductive control. Animals with a greater number of births have lower concentrations of PAGs (p < 0.05) in circulation. The factor with the greatest significance recorded (p < 0.01) was the group under study (pregnant, non-pregnant and pseudopregnant), when analyzing P4 and PAGs concentrations.
Pseudopregnancies or hydrometras have gained relevance in the reproductive panorama of dairy goats, as they are one of the main causes of temporary infertility in these animals. Being called a silent disease, as it presents clinical signs that are not very specific and easily confused with pregnant animals, it makes its diagnosis without resorting to additional tests extremely difficult. The development of ultrasound techniques applied by experienced professionals in these animals has facilitated their diagnosis and at the same time allowed early treatment of the pathology. The present study aimed to study the prevalence of pseudopregnancies in intervention goat herds, as well as trying to understand the hormonal mechanism involved. For the study, pregnancy diagnoses were carried out using ultrasound and measurements of the levels of progesterone (P4) and pregnancy-associated glycoproteins (PAGs), and a questionnaire was also carried out during this collection. The global prevalence recorded was 3,93%, the minimum P4 limit was 0,44 ng/ml and the maximum was 18,05 ng/ml in the group of animals with the pathology. Only 3 animals with the disease were identified after ultrasound reinspection in a new reproductive control. Animals with a greater number of births have lower concentrations of PAGs (p < 0.05) in circulation. The factor with the greatest significance recorded (p < 0.01) was the group under study (pregnant, non-pregnant and pseudopregnant), when analyzing P4 and PAGs concentrations.
Description
Keywords
Caprinos Hidrometra P4 PAGs Ultrassonografia Goats Hydrometra Ultrasonography