Agricultural Research Management Information System

Home
Research Summary
Search
About Us
- ARMIS
- Brochure
Contact Us
Report
User Request
Data Input
Help
- Operation Manual
  - PDF
  - Video
- Program Area & Commodity
We have reached 37600 number of research entries at this moment.

- Logout

Research Detail

Home
Research
Detail

Evaluation of Pregnancy Diagnosis Using Ultrasonography in Goats

Azizunnesa
Department of Medicine and Surgery, Faculty of Veterinary Medicine, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram-4225, Bangladesh.

MO Faruk
Upazila Livestock Officer
Upazila Livestock Office and Veterinary Hospital, Fatickchari, Chattogram, Bangladesh.

MA Parvez
Department of Medicine and Surgery, Faculty of Veterinary Medicine, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram-4225, Bangladesh.

MMB Reza
Department of Medicine and Surgery, Faculty of Veterinary Medicine, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram-4225, Bangladesh.

Abstract/ Executive Summary:

Pregnancy status in 250 goats was determined by transabdominal ultrasonography. The registered hospital cases were divided into groups A (mated naturally; 88); B (postpartum reported unmated; 112) and C (pubertal unmated; 50). Animals found to be non-pregnant and free of uterine infection were labeled Group D and divided into synchronized (S) and control (NS) groups. GnRH followed byPGF2α nine days later was injected i.m. in group S, and NS group were allowed natural mating. All mated goats were checked monthly for pregnancy using ultrasonography. Pregnancy was diagnosed in 45.5, 4.5 and 0% from naturally mated, postpartum reported unmated and pubertal unmated cases, respectively. The oestrus detection and pregnancy rates varied significantly (P<0.001) between synchronized (n = 96; 70.8 and 54.4%, respectively) and NS group (n = 96: 54.0 and 28.6%, respectively). Pregnancy rates significantly varied in different months in gestation (P<0.05). Fetal viability rate was low in 1st month of pregnancy compared to other months (2^nd, 3^rd, and >3^rd). The confirmation of the expected date of delivery (EDD) was low in 1^st month of gestation compared to other months. Transabdominal ultrasonographic scanning helps to confirm pregnancy in goats. From 2^nd month of gestation, ultrasound scanning confirms pregnancy with a viable fetus (83.3%). At 3^rd month of pregnancy, this technique determined the EDD up to 94.2%.

Keywords: Pregnancy diagnosis, Ultrasound scanning

Location: Department of Medicine and Surgery, Faculty of Veterinary Medicine, Chattogram Veterinary and Animal Sciences University, Khulshi, Chattogram-4225, Bangladesh.

Start Date: 00-07-2018

End Date: 00-06-2019

Program Area: Animal Health and Management

Commodity: Goat

Objectives:

This study was designed to use ultrasonographic scanning for diagnosis of pregnancy in goats registered as outdoor patients at SAQ Teaching Veterinary Hospital (SAQTVH), Chattogram Veterinary, and Animal Science University.

Methodology:

A total of 250 goats, Black Bengal, or Jamunapri and Black Bengal crosses, were selected from cases at the Theriogenology unit at SAQTVH, CVASU from July 2018 to June 2019. Owners’ history was taken. The goats were divided into group A: (88) naturally mated, B: (112) postpartum reported unmated, C: (50) pubertal unmated. Of these, 192 were found to be non-pregnant and free of uterine disease. These were labelled Group D and divided into S: (96) synchronized and NS (96) non-synchronized. The goats were kept under a traditional management system by farmers. Wheat bran, rice polish, and common grazing with ad libitum water were supplied. Group D were divided into synchronized (S: n = 96) and non-synchronized (NS: n = 96) group. S group were treated with GnRH and nine days later PGF₂α i/m injection for oestrous synchronization. Group NS were given no treatment and kept as control. Goats of both groups were monitored for oestrous behavior and allowed to mate with bucks. A transabdominal digital ultrasonic diagnostic imaging system with convex abdominal ultrasonic transducer 5 MHz was used in a standing position without sedation to diagnose pregnancy in goats. The right lower abdomen was clipped and shaved. Pregnancy was confirmed by observing the gestational sac, fetus, fetal part(s), cotyledon, etc. At 1^st month of gestation, pregnancy was confirmed by the presence of fetus and fetal heartbeats. Fetal viability was measured by observing fetal movement or heartbeats. The expected date of delivery (EDD) was estimated by measuring sac diameter or cotyledon size or by observing fetal parts. Evaluation of pregnancy status was done as described by Medan et al. EDD was compared with the actual date of delivery obtained from owners. Pregnancy was recorded as 1^st, 2^nd and 3^rd months and more. The data were compiled in Microsoft Excel spreadsheet 10 and subjected to comparative statistical analysis with respect to oestrous synchronization, and ultrasonographic examination using STATA 13.0. Fisher’s exact Chi-square test was done to evaluate the effect of oestrous synchronization on oestrus and pregnancy rates compared to control. A similar test was done to observe the accuracy of detection of pregnancy and its status in different gestation periods. A significant difference was accepted at the P<0.05 level.

Source of Information: The Bangladesh Veterinarian (2019) 36(1 - 2): 42-48

Article Link (Online Journal): DOI: https://doi.org/10.3329/bvet.v36i1-2.55749

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

Ultrasonographic scanning in goats was advantageous in pregnancy confirmation. Pregnancy was confirmed with 100% accuracy from the 2^nd month of gestation with fetal viability (83.3 to 90%) and estimation of EDD (76.6 to 94.2%).

Knowledge Management: Journal